MidtermExam1-AllCodes-Answers
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MidtermExam1-AllCodes-Answers

Course Number: PHYS 0110, Spring 2008

College/University: Pittsburgh

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CODE - 0 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 1 Name: 5 pt Which of the following equations must be incorrect by dimensional analysis? (x = distance, v = velocity, a = acceleration, t = time, m = mass, F = force) 1. A F/m = v/t B 2F = mv 2 /x C 2x/t = at D v 2 t2 = x/a E v 2 /(t2 a2 ) = cos 5 pt A tennis ball is lobbed over the net. Ignore air resistance. Which of the following is true during...

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- CODE 0 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 1 Name: 5 pt Which of the following equations must be incorrect by dimensional analysis? (x = distance, v = velocity, a = acceleration, t = time, m = mass, F = force) 1. A F/m = v/t B 2F = mv 2 /x C 2x/t = at D v 2 t2 = x/a E v 2 /(t2 a2 ) = cos 5 pt A tennis ball is lobbed over the net. Ignore air resistance. Which of the following is true during the flight? 4. A The acceleration is positive as the ball rises, and it is negative as the ball falls. B The ball has a constant acceleration. C The acceleration is zero m/s2 at all times. D The acceleration starts at 9.8 m/s2 and drops to some constant lower value as the ball approaches the ground. E At no time is the velocity perpendicular to the acceleration. 4) B false true false false false 1) D false false false true false 5 pt A man with mass m =97.5 kg (weight = 214.5 lbs is walking towards a patio at 1.60 m/s (3.58 mph) when, at the last moment, he realizes the sliding glass door is closed. He puts out his hand suddenly to stop himself, and comes to a halt in 160.0ms. Find the magnitude of the average force exerted on the door by his hand. (in N) 2.A D 8.63 102 1.24 103 B E 9.75 102 1.41 103 C 1.10 103 5 pt A dolphin leaps out of the water at an angle of 32.8 above the horizontal. The horizontal component of the dolphin's velocity is 7.36 m/s. Calculate the magnitude of the vertical component of the velocity. (in m/s) 5.A E 2.43 5.93 B 3.04 C 3.79 D 4.74 2) 5 pt B 9.75E+02 [955.5,994.5] Sig 3 - 5 Unit: N 5) D 4.74 [4.64833240207051,4.83806025521625] Sig 3 - Due never Vector A points in the y-direction and has length 13. Vector B points with = 44o from the x-axis and has length 11. Find the direction (in degrees relative to the x-axis) of the sum of these two vectors. 5 pt A person throws a stone horizontally off a 100 m cliff with a speed of 25 m/s. At the same time, a second stone is dropped from rest off the same cliff. Ignore air resistance. Which of the following statements are true? I. Both stones travel the same horizontal distance. II. Both stones strike the water with equal velocity. III. Both stones reach the water in the same amount of time. 6. A statement III B statements I and II C statements II and III D none of them are correct E they are all correct 80.760 129.347 C 94.490 3.A D 69.026 110.553 B E 6) A true false false false false 3) A 69.026 [67.6453558198859,70.4063907513098] 5 pt A car travels due east at 22 m/s. It makes a turn due south and continues to travel at 22 m/s. What is the change in the velocity of the car? 7. A B C D E 22 m/s, 45 north of east. 22 m/s, due north. 31 m/s, 45 south of west. 22 m/s, due west. 22 m/s, 45 south of east. false false true false false 7) C CODE - 0 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 3 Vd Speed, m/s Vc 0 0 1 2 3 5 pt 4 Time, s 5 6 7 8 The Graph above shows the speed of a car traveling in a straight line as a function of time. The value of Vc is 4.40 m/s and the value of Vd is 5.30 m/s Calculate the distance traveled by the car from a time of 1.20 to 5.20 seconds. (in m) 8.A D 6.13 1.87 101 B E 8.88 2.71 101 C 1.29 101 8) D 1.87E+01 [18.3064,19.0536] Sig 3 - 5 MSU Unit: m Printed from LON-CAPA Licensed under GNU General Public License CODE - 1 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 1 Name: 5 pt Which of the following equations must be incorrect by dimensional analysis? (x = distance, v = velocity, a = acceleration, t = time, m = mass, F = force) 1. A B C D E 5 pt A tennis ball is lobbed over the net. Ignore air resistance. Which of the following is true during the flight? 4. A B v 2 t2 = x/a 2F = mv 2 /x t = v/a F 2 = m2 a2 All the above are correct dimensionally true false false false false 4) The ball has a constant acceleration. The acceleration starts at 9.8 m/s2 and drops to some constant lower value as the ball approaches the ground. C At the top of the flight, the velocity is zero. D The ball travels at constant speed. E The acceleration is positive as the ball rises, and it is negative as the ball falls. A true false false false false 1) A 5 pt A man with mass m =70.0 kg (weight = 154.0 lbs is walking towards a patio at 2.20 m/s (4.92 mph) when, at the last moment, he realizes the sliding glass door is closed. He puts out his hand suddenly to stop himself, and comes to a halt in 140.0ms. Find the magnitude of the average force exerted on the door by his hand. (in N) 2.A D 3.52 10 8.27 102 2 5 pt A dolphin leaps out of the water at an angle of 36.2 above the horizontal. The horizontal component of the dolphin's velocity is 7.05 m/s. Calculate the magnitude of the vertical component of the velocity. (in m/s) 5.A D 5.16 1.01 101 B E 6.45 1.26 101 C 8.06 B E 4.68 10 1.10 103 2 C 6.22 10 2 5) Unit: N A 5.16 [5.0566235986819,5.2630163986281] Sig 3 - 5 2) 5 pt E 1.10E+03 [1078,1122] Sig 3 - 5 Due never Vector A points in the y-direction and has length 15. Vector B points with = 39o from the x-axis and has length 11. Find the direction (in degrees relative to the x-axis) of the sum of these two vectors. 5 pt A person throws a stone horizontally off a 100 m cliff with a speed of 25 m/s. At the same time, a second stone is dropped from rest off the same cliff. Ignore air resistance. Which of the following statements are true? I. Both stones travel the same horizontal distance. II. Both stones strike the water with equal velocity. III. Both stones reach the water in the same amount of time. 6. A statement II B statement I C statement III D statements I and III E statements I and II 6) 3.A D 32.674 99.610 B E 47.377 144.435 C 68.697 C false false true false false 3) C 68.697 [67.3229529724799,70.0708286040096] 5 pt A car travels due east at 22 m/s. It makes a turn due south and continues to travel at 22 m/s. What is the change in the velocity of the car? 7. A B C D E 22 m/s, 45 north of west. 22 m/s, due east. 31 m/s, 45 south of west. 22 m/s, due north. 31 m/s, 45 north of east. false false true false false 7) C CODE - 1 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 3 Vd Speed, m/s Vc 0 0 1 2 3 5 pt 4 Time, s 5 6 7 8 The Graph above shows the speed of a car traveling in a straight line as a function of time. The value of Vc is 3.80 m/s and the value of Vd is 5.30 m/s Calculate the distance traveled by the car from a time of 1.20 to 5.20 seconds. (in m) 8.A D 1.50 101 2.17 101 B E 1.70 101 2.45 101 C 1.92 101 8) B 1.70E+01 [16.66,17.34] Sig 3 - 5 MSU Unit: m Printed from LON-CAPA Licensed under GNU General Public License CODE - 2 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 1 Name: 5 pt Which of the following equations must be incorrect by dimensional analysis? (x = distance, v = velocity, a = acceleration, t = time, m = mass, F = force) 1. A t = v/a B v 2 t2 = x/a C F/m = v/t D 2x/t = at E All the above are correct dimensionally 5 pt A tennis ball is lobbed over the net. Ignore air resistance. Which of the following is true during the flight? 4. A The acceleration is positive as the ball rises, and it is negative as the ball falls. B At the top of the flight, the velocity is zero. C The ball has a constant acceleration. D The acceleration starts at 9.8 m/s2 and drops to some constant lower value as the ball approaches the ground. E At no time is the velocity perpendicular to the acceleration. 4) C false false true false false 1) B false true false false false 5 pt A man with mass m =71.1 kg (weight = 156.4 lbs is walking towards a patio at 1.40 m/s (3.13 mph) when, at the last moment, he realizes the sliding glass door is closed. He puts out his hand suddenly to stop himself, and comes to a halt in 190.0ms. Find the magnitude of the average force exerted on the door by his hand. (in N) 2.A D 2.49 102 7.60 102 B E 3.61 102 1.10 103 C 5.24 102 5 pt A dolphin leaps out of the water at an angle of 37.0 above the horizontal. The horizontal component of the dolphin's velocity is 7.17 m/s. Calculate the magnitude of the vertical component of the velocity. (in m/s) 5.A D 3.73 1.14 101 B E 5.40 1.65 101 C 7.83 2) 5 pt C 5) B 5.40 [5.29492288845229,5.51104219002177] Sig 3 5.24E+02 [513.416842105263,534.372631578947] Sig 3 - 5 Unit: N 5 pt A person throws a stone horizontally off a 100 m cliff with a speed of 25 m/s. At the same time, a second stone is dropped from rest off the same cliff. Ignore air resistance. Which of the following statements are true? I. Both stones travel the same horizontal distance. II. Both stones strike the water with equal velocity. III. Both stones reach the water in the same amount of time. Due never Vector A points in the y-direction and has length 12. Vector B points with = 33o from the x-axis and has length 12. Find the direction (in degrees relative to the x-axis) of the sum of these two vectors. 6. A statement III B statements I and II C statements I and III D none of them are correct E they are all correct 54.425 78.529 C 61.500 3.A D 48.164 69.495 B E 6) A true false false false false 3) C 61.500 [60.27,62.73] 5 pt A car travels due east at 22 m/s. It makes a turn due south and continues to travel at 22 m/s. What is the change in the velocity of the car? 7. A B C D E 31 m/s, 45 south of west. 22 m/s, due south. 31 m/s, 45 north of east. 22 m/s, 45 south of east. 22 m/s, due north. true false false false false 7) A CODE - 2 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 3 Vd Speed, m/s Vc 0 0 1 2 3 5 pt 4 Time, s 5 6 7 8 The Graph above shows the speed of a car traveling in a straight line as a function of time. The value of Vc is 4.00 m/s and the value of Vd is 5.30 m/s Calculate the distance traveled by the car from a time of 1.20 to 5.20 seconds. (in m) 8.A D 1.32 101 3.11 101 B E 1.76 101 4.13 101 C 2.34 101 8) B 1.76E+01 [17.2088,17.9112] Sig 3 - 5 MSU Unit: m Printed from LON-CAPA Licensed under GNU General Public License CODE - 3 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 1 Name: 5 pt Which of the following equations must be incorrect by dimensional analysis? (x = distance, v = velocity, a = acceleration, t = time, m = mass, F = force) 1. A B C D E 5 pt A tennis ball is lobbed over the net. Ignore air resistance. Which of the following is true during the flight? 4. A The acceleration is positive as the ball rises, and it is negative as the ball falls. B At the top of the flight, the acceleration is zero. C The acceleration starts at 9.8 m/s2 and drops to some constant lower value as the ball approaches the ground. D The ball has a constant acceleration. E At no time is the velocity perpendicular to the acceleration. 4) D false false false true false v 2 /(t2 a2 ) = cos F 2 = m2 a2 2F = mv 2 /x t = v/a v 2 t2 = x/a false false false false true 1) E 5 pt A man with mass m =87.6 kg (weight = 192.7 lbs is walking towards a patio at 1.90 m/s (4.25 mph) when, at the last moment, he realizes the sliding glass door is closed. He puts out his hand suddenly to stop himself, and comes to a halt in 120.0ms. Find the magnitude of the average force exerted on the door by his hand. (in N) 2.A D 3.14 102 9.57 102 B E 4.55 102 1.39 103 C 6.60 102 5 pt A dolphin leaps out of the water at an angle of 38.0 above the horizontal. The horizontal component of the dolphin's velocity is 7.68 m/s. Calculate the magnitude of the vertical component of the velocity. (in m/s) 5.A E 1.97 8.70 B 2.85 C 4.14 D 6.00 2) 5 pt E 1.39E+03 [1359.26,1414.74] Sig 3 - 5 Unit: N 5) D 6.00 [5.88026813934016,6.12027908380302] Sig 3 - Due never Vector A points in the y-direction and has length 12. Vector B points with = 25o from the x-axis and has length 12. Find the direction (in degrees relative to the x-axis) of the sum of these two vectors. 5 pt A person throws a stone horizontally off a 100 m cliff with a speed of 25 m/s. At the same time, a second stone is dropped from rest off the same cliff. Ignore air resistance. Which of the following statements are true? I. Both stones travel the same horizontal distance. II. Both stones strike the water with equal velocity. III. Both stones reach the water in the same amount of time. 6. A statement III B statements II and III C statement II D statements I and III E they are all correct 42.005 67.275 C 49.145 3.A D 35.901 57.500 B E 6) A true false false false false 3) D 57.500 [56.35,58.65] 5 pt A car travels due east at 22 m/s. It makes a turn due south and continues to travel at 22 m/s. What is the change in the velocity of the car? 7. A B C D E 31 m/s, 45 north of west. 22 m/s, due north. 31 m/s, 45 north of east. 22 m/s, 45 south of west. 31 m/s, 45 south of west. false false false false true 7) E CODE - 3 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 3 Vd Speed, m/s Vc 0 0 1 2 3 5 pt 4 Time, s 5 6 7 8 The Graph above shows the speed of a car traveling in a straight line as a function of time. The value of Vc is 4.40 m/s and the value of Vd is 5.30 m/s Calculate the distance traveled by the car from a time of 1.20 to 5.20 seconds. (in m) 8.A D 1.87 101 4.39 101 B E 2.48 101 5.84 101 C 3.30 101 8) A 1.87E+01 [18.3064,19.0536] Sig 3 - 5 MSU Unit: m Printed from LON-CAPA Licensed under GNU General Public License CODE - 4 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 1 Name: 5 pt Which of the following equations must be incorrect by dimensional analysis? (x = distance, v = velocity, a = acceleration, t = time, m = mass, F = force) 1. A B C D E 5 pt A tennis ball is lobbed over the net. Ignore air resistance. Which of the following is true during the flight? 4. A The acceleration is positive as the ball rises, and it is negative as the ball falls. B The ball has a constant acceleration. C At the top of the flight, the acceleration is zero. D The acceleration is zero m/s2 at all times. E At the top of the flight, the velocity is zero. 4) B false true false false false v 2 t2 = x/a F 2 = m2 a2 t = v/a v 2 /(t2 a2 ) = cos All the above are correct dimensionally true false false false false 1) A 5 pt A man with mass m =96.4 kg (weight = 212.1 lbs is walking towards a patio at 2.00 m/s (4.47 mph) when, at the last moment, he realizes the sliding glass door is closed. He puts out his hand suddenly to stop himself, and comes to a halt in 130.0ms. Find the magnitude of the average force exerted on the door by his hand. (in N) 2.A D 9.49 102 1.85 103 B E 1.19 103 2.32 103 C 1.48 103 5 pt A dolphin leaps out of the water at an angle of 35.8 above the horizontal. The horizontal component of the dolphin's velocity is 7.92 m/s. Calculate the magnitude of the vertical component of the velocity. (in m/s) 5.A D 3.23 7.60 B E 4.29 1.01 101 C 5.71 5) C 5.71 [5.59784246798034,5.82632583402036] Sig 3 - 5 pt A person throws a stone horizontally off a 100 m cliff 1.48E+03 [1453.41538461538,1512.73846153846] Sig 3 a speed Unit: m/s. At the same time, a second stone with - 5 of 25 N is dropped from rest off the same cliff. Ignore air resistance. Which of the following statements are true? 5 pt Due never I. Both stones travel the same horizontal distance. II. Both stones strike the water with equal velocity. III. Both stones reach the water in the same amount of time. Vector A points in the y-direction and has length 16. Vector B points with = 41o 6. A statement I from the x-axis and B statements II and III has length 12. Find C statement III the direction (in deD statement II grees relative to the E they are all correct x-axis) of the sum of 6) C false false true false false these two vectors. 2) C 5 pt A car travels due east at 22 m/s. It makes a turn due south and continues to travel at 22 m/s. What is the change in the velocity of the car? 7. A 22 m/s, due south. B 22 m/s, 45 south of east. C 22 m/s, due east. D 31 m/s, 45 south of west. E 31 m/s, 45 north of west. 3.A D 61.261 88.393 B E 69.225 99.884 C 78.224 3) B 69.225 [67.8404151379024,70.6094116741433] 7) D false false false true false CODE - 4 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 3 Vd Speed, m/s Vc 0 0 1 2 3 5 pt 4 Time, s 5 6 7 8 The Graph above shows the speed of a car traveling in a straight line as a function of time. The value of Vc is 3.60 m/s and the value of Vd is 5.30 m/s Calculate the distance traveled by the car from a time of 1.20 to 5.20 seconds. (in m) 8.A D 1.01 101 1.45 101 B E 1.14 101 1.64 101 C 1.29 101 8) E 1.64E+01 [16.1112,16.7688] Sig 3 5 MSU Unit: - m Printed from LON-CAPA Licensed under GNU General Public License CODE - 5 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 1 Name: 5 pt Which of the following equations must be incorrect by dimensional analysis? (x = distance, v = velocity, a = acceleration, t = time, m = mass, F = force) 1. A B C D E 5 pt A tennis ball is lobbed over the net. Ignore air resistance. Which of the following is true during the flight? 4. A B v 2 t2 = x/a F/m = v/t 2x/t = at 2F = mv 2 /x v 2 /(t2 a2 ) = cos true false false false false 4) At the top of the flight, the velocity is zero. At no time is the velocity perpendicular to the acceleration. C The acceleration starts at 9.8 m/s2 and drops to some constant lower value as the ball approaches the ground. D The ball travels at constant speed. E The ball has a constant acceleration. E false false false false true 1) A 5 pt A man with mass m =70.0 kg (weight = 154.0 lbs is walking towards a patio at 1.30 m/s (2.91 mph) when, at the last moment, he realizes the sliding glass door is closed. He puts out his hand suddenly to stop himself, and comes to a halt in 160.0ms. Find the magnitude of the average force exerted on the door by his hand. (in N) 2.A D 4.28 102 1.01 103 B E 5.69 102 1.34 103 C 7.56 102 5 pt A dolphin leaps out of the water at an angle of 37.6 above the horizontal. The horizontal component of the dolphin's velocity is 7.75 m/s. Calculate the magnitude of the vertical component of the velocity. (in m/s) 5.A D 5.97 1.40 101 B E 7.94 1.87 101 C 1.06 101 5) Unit: N A 5.97 [5.84893739138862,6.08766952981264] Sig 3 - 2) 5 pt B 5.69E+02 [557.375,580.125] Sig 3 - 5 Due never Vector A points in the y-direction and has length 14. Vector B points with = 30o from the x-axis and has length 11. Find the direction (in degrees relative to the x-axis) of the sum of these two vectors. 5 pt A person throws a stone horizontally off a 100 m cliff with a speed of 25 m/s. At the same time, a second stone is dropped from rest off the same cliff. Ignore air resistance. Which of the following statements are true? I. Both stones travel the same horizontal distance. II. Both stones strike the water with equal velocity. III. Both stones reach the water in the same amount of time. 6. A statement I B statements I and II C statement III D statement II E they are all correct 6) 3.A D 44.330 63.963 B E 50.093 72.278 C 56.605 C false false true false false 3) D 63.963 [62.6839702681008,65.2424996667988] 5 pt A car travels due east at 22 m/s. It makes a turn due south and continues to travel at 22 m/s. What is the change in the velocity of the car? 7. A B 22 m/s, 45 C 31 m/s, 45 D 31 m/s, 45 E 22 m/s, due 22 m/s, due east. south of east. north of east. south of west. north. false false false true false 7) D CODE - 5 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 3 Vd Speed, m/s Vc 0 0 1 2 3 5 pt 4 Time, s 5 6 7 8 The Graph above shows the speed of a car traveling in a straight line as a function of time. The value of Vc is 4.20 m/s and the value of Vd is 5.30 m/s Calculate the distance traveled by the car from a time of 1.20 to 5.20 seconds. (in m) 8.A D 1.13 101 1.81 101 B E 1.32 101 2.12 101 C 1.55 101 8) D 1.81E+01 [17.7576,18.4824] Sig 3 - 5 MSU Unit: m Printed from LON-CAPA Licensed under GNU General Public License CODE - 6 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 1 Name: 5 pt Which of the following equations must be incorrect by dimensional analysis? (x = distance, v = velocity, a = acceleration, t = time, m = mass, F = force) 1. A 2x/t = at B v 2 /(t2 a2 ) = cos C 2F = mv 2 /x D F 2 = m2 a2 E v 2 t2 = x/a 5 pt A tennis ball is lobbed over the net. Ignore air resistance. Which of the following is true during the flight? 4. A B The ball travels at constant speed. The acceleration is positive as the ball rises, and it is negative as the ball falls. C The ball has a constant acceleration. D At the top of the flight, the velocity is zero. E At no time is the velocity perpendicular to the acceleration. C false false true false false 4) false true 1) E false false false 5 pt A man with mass m =84.3 kg (weight = 185.5 lbs is walking towards a patio at 1.90 m/s (4.25 mph) when, at the last moment, he realizes the sliding glass door is closed. He puts out his hand suddenly to stop himself, and comes to a halt in 200.0ms. Find the magnitude of the average force exerted on the door by his hand. (in N) 2.A D 6.41 102 1.25 103 B E 8.01 102 1.56 103 C 1.00 103 5 pt A dolphin leaps out of the water at an angle of 34.9 above the horizontal. The horizontal component of the dolphin's velocity is 7.09 m/s. Calculate the magnitude of the vertical component of the velocity. (in m/s) 5.A E 3.17 7.73 B 3.96 C 4.95 D 6.18 5) C 4.95 [4.84713145798618,5.04497355831214] Sig 3 - 2) 5 pt B 8.01E+02 [784.833,816.867] Sig 3 - 5 Due never Vector A points in the y-direction and has length 18. Vector B points with = 38o from the x-axis and has length 16. Find the direction (in degrees relative to the x-axis) of the sum of these two vectors. Unit: N 5 pt A person throws a stone horizontally off a 100 m cliff with a speed of 25 m/s. At the same time, a second stone is dropped from rest off the same cliff. Ignore air resistance. Which of the following statements are true? I. Both stones travel the same horizontal distance. II. Both stones strike the water with equal velocity. III. Both stones reach the water in the same amount of time. 6. A statement I B statement III C statements I and II D statements II and III E they are all correct 6) 33.609 65.643 C 42.012 B false true false false false 3.A D 26.888 52.515 B E 5 pt A car travels due east at 22 m/s. It makes a turn due south and continues to travel at 22 m/s. What is the change in the velocity of the car? 7. A 22 m/s, due south. B 31 m/s, 45 north of west. C 22 m/s, 45 south of west. D 31 m/s, 45 south of west. E 22 m/s, 45 north of west. 3) E 65.643 [64.330506360162,66.956241313638] 7) D false false false true false CODE - 6 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 3 Vd Speed, m/s Vc 0 0 1 2 3 5 pt 4 Time, s 5 6 7 8 The Graph above shows the speed of a car traveling in a straight line as a function of time. The value of Vc is 4.00 m/s and the value of Vd is 5.30 m/s Calculate the distance traveled by the car from a time of 1.20 to 5.20 seconds. (in m) 8.A D 1.76 101 2.53 101 B E 1.98 101 2.86 101 C 2.24 101 8) A 1.76E+01 [17.2088,17.9112] Sig 3 - 5 MSU Unit: m Printed from LON-CAPA Licensed under GNU General Public License CODE - 7 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 1 Name: 5 pt Which of the following equations must be incorrect by dimensional analysis? (x = distance, v = velocity, a = acceleration, t = time, m = mass, F = force) 1. A 2x/t = at B v 2 /(t2 a2 ) = cos C v 2 t2 = x/a D F 2 = m2 a2 E All the above are correct dimensionally 5 pt A tennis ball is lobbed over the net. Ignore air resistance. Which of the following is true during the flight? 4. A B C The ball travels at constant speed. The acceleration is zero m/s2 at all times. The acceleration starts at 9.8 m/s2 and drops to some constant lower value as the ball approaches the ground. D At the top of the flight, the acceleration is zero. E The ball has a constant acceleration. E false false false false true 4) 1) C false false true false false 5 pt A dolphin leaps out of the water at an angle of 33.0 above the horizontal. The horizontal component of the dolphin's velocity is 7.44 m/s. Calculate the magnitude of the vertical component of the velocity. (in m/s) 5.A E 3.09 7.55 B 3.87 C 4.83 D 6.04 5 pt A man with mass m =81.0 kg (weight = 178.2 lbs is walking towards a patio at 1.40 m/s (3.13 mph) when, at the last moment, he realizes the sliding glass door is closed. He puts out his hand suddenly to stop himself, and comes to a halt in 160.0ms. Find the magnitude of the average force exerted on the door by his hand. (in N) 2.A D 7.09 102 1.14 103 B E 8.29 102 1.33 103 C 9.70 102 5) C 4.83 [4.73496064352169,4.92822434325727] Sig 3 - 2) 5 pt A 7.09E+02 [694.575,722.925] Sig 3 - 5 Due never Vector A points in the y-direction and has length 10. Vector B points with = 49o from the x-axis and has length 14. Find the direction (in degrees relative to the x-axis) of the sum of these two vectors. Unit: N 5 pt A person throws a stone horizontally off a 100 m cliff with a speed of 25 m/s. At the same time, a second stone is dropped from rest off the same cliff. Ignore air resistance. Which of the following statements are true? I. Both stones travel the same horizontal distance. II. Both stones strike the water with equal velocity. III. Both stones reach the water in the same amount of time. 6. A statement III B statements I and III C statements II and III D statements I and II E statement II 6) 65.934 105.601 C 77.143 A true false false false false 3.A D 56.354 90.257 B E 5 pt A car travels due east at 22 m/s. It makes a turn due south and continues to travel at 22 m/s. What is the change in the velocity of the car? 7. A B C D E 3) B 65.934 [64.6155893356632,67.2529603289555] 22 m/s, 45 north of east. 31 m/s, 45 south of east. 22 m/s, 45 north of west. 22 m/s, due south. 31 m/s, 45 south of west. false false false false true 7) E CODE - 7 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 3 Vd Speed, m/s Vc 0 0 1 2 3 5 pt 4 Time, s 5 6 7 8 The Graph above shows the speed of a car traveling in a straight line as a function of time. The value of Vc is 4.00 m/s and the value of Vd is 5.30 m/s Calculate the distance traveled by the car from a time of 1.20 to 5.20 seconds. (in m) 8.A D 1.50 101 2.40 101 B E 1.76 101 2.81 101 C 2.05 101 8) B 1.76E+01 [17.2088,17.9112] Sig 3 - 5 MSU Unit: m Printed from LON-CAPA Licensed under GNU General Public License CODE - 8 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 1 Name: 5 pt Which of the following equations must be incorrect by dimensional analysis? (x = distance, v = velocity, a = acceleration, t = time, m = mass, F = force) 1. A B C D E 5 pt A tennis ball is lobbed over the net. Ignore air resistance. Which of the following is true during the flight? 4. A The acceleration is zero m/s2 at all times. B At the top of the flight, the acceleration is zero. C The acceleration starts at 9.8 m/s2 and drops to some constant lower value as the ball approaches the ground. D The ball has a constant acceleration. E The acceleration is positive as the ball rises, and it is negative as the ball falls. D false false false true false v 2 /(t2 a2 ) = cos t = v/a 2x/t = at t2 = 2x/a v 2 t2 = x/a false false false false true 4) 1) E 5 pt A man with mass m =82.1 kg (weight = 180.6 lbs is walking towards a patio at 2.10 m/s (4.70 mph) when, at the last moment, he realizes the sliding glass door is closed. He puts out his hand suddenly to stop himself, and comes to a halt in 150.0ms. Find the magnitude of the average force exerted on the door by his hand. (in N) 2.A D 1.15 10 2.70 103 3 5 pt A dolphin leaps out of the water at an angle of 33.0 above the horizontal. The horizontal component of the dolphin's velocity is 7.01 m/s. Calculate the magnitude of the vertical component of the velocity. (in m/s) 5.A E 3.16 5.14 B 3.57 C 4.03 D 4.55 B E 1.53 10 3.60 103 3 C 2.03 10 3 5) D 4.55 [4.46130028374826,4.64339417288084] Sig 3 - 2) 5 pt A 1.15E+03 [1126.412,1172.388] Sig 3 - 5 Due never Vector A points in the y-direction and has length 12. Vector B points with = 36o from the x-axis and has length 13. Find the direction (in degrees relative to the x-axis) of the sum of these two vectors. Unit: N 5 pt A person throws a stone horizontally off a 100 m cliff with a speed of 25 m/s. At the same time, a second stone is dropped from rest off the same cliff. Ignore air resistance. Which of the following statements are true? I. Both stones travel the same horizontal distance. II. Both stones strike the water with equal velocity. III. Both stones reach the water in the same amount of time. 6. A statement I B statement II C statement III D statements II and III E statements I and II 6) 3.A D 31.658 61.832 B E 39.573 77.291 C 49.466 C false false true false false 3) D 61.832 [60.5957670290264,63.0690636424561] 5 pt A car travels due east at 22 m/s. It makes a turn due south and continues to travel at 22 m/s. What is the change in the velocity of the car? 7. A 22 m/s, due west. B 31 m/s, 45 south of east. C 22 m/s, 45 south of west. D 22 m/s, 45 south of east. E 31 m/s, 45 south of west. 7) E false false false false true CODE - 8 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 3 Vd Speed, m/s Vc 0 0 1 2 3 5 pt 4 Time, s 5 6 7 8 The Graph above shows the speed of a car traveling in a straight line as a function of time. The value of Vc is 4.00 m/s and the value of Vd is 5.30 m/s Calculate the distance traveled by the car from a time of 1.20 to 5.20 seconds. (in m) 8.A D 7.19 1.40 101 B E 8.99 1.76 101 C 1.12 101 8) E 1.76E+01 [17.2088,17.9112] Sig 3 - 5 MSU Unit: m Printed from LON-CAPA Licensed under GNU General Public License CODE - 9 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 1 Name: 5 pt Which of the following equations must be incorrect by dimensional analysis? (x = distance, v = velocity, a = acceleration, t = time, m = mass, F = force) 1. A 2x/t = at B v 2 t2 = x/a C 2F = mv 2 /x D F/m = v/t E t2 = 2x/a 5 pt A tennis ball is lobbed over the net. Ignore air resistance. Which of the following is true during the flight? 4. A B At the top of the flight, the acceleration is zero. At no time is the velocity perpendicular to the acceleration. C The acceleration is zero m/s2 at all times. D The ball has a constant acceleration. E The acceleration is positive as the ball rises, and it is negative as the ball falls. D false false false true false 4) false false false 1) B false true 5 pt A man with mass m =74.4 kg (weight = 163.7 lbs is walking towards a patio at 2.20 m/s (4.92 mph) when, at the last moment, he realizes the sliding glass door is closed. He puts out his hand suddenly to stop himself, and comes to a halt in 150.0ms. Find the magnitude of the average force exerted on the door by his hand. (in N) 2.A D 4.47 102 8.73 102 B E 5.59 102 1.09 103 C 6.98 102 5 pt A dolphin leaps out of the water at an angle of 37.7 above the horizontal. The horizontal component of the dolphin's velocity is 7.11 m/s. Calculate the magnitude of the vertical component of the velocity. (in m/s) 5.A D 5.50 1.07 101 B E 6.87 1.34 101 C 8.59 5) A 5.50 [5.3853278284405,5.60513712756052] Sig 3 - 5 2) 5 pt E 1.09E+03 [1069.376,1113.024] Sig 3 - 5 Due never Vector A points in the y-direction and has length 14. Vector B points with = 33o from the x-axis and has length 10. Find the direction (in degrees relative to the x-axis) of the sum of these two vectors. Unit: 5 pt A person throws a stone horizontally off a 100 m cliff N with a speed of 25 m/s. At the same time, a second stone is dropped from rest off the same cliff. Ignore air resistance. Which of the following statements are true? I. Both stones travel the same horizontal distance. II. Both stones strike the water with equal velocity. III. Both stones reach the water in the same amount of time. 6. A statements II and III B statement III C statements I and III D none of them are correct E they are all correct 6) 21.869 66.671 C 31.710 B false true false false false 3.A D 15.082 45.980 B E 5 pt A car travels due east at 22 m/s. It makes a turn due south and continues to travel at 22 m/s. What is the change in the velocity of the car? 7. A B C D E 3) E 66.671 [65.3373461646394,68.004176620339] 31 m/s, 45 south of west. 22 m/s, 45 south of west. 22 m/s, due east. 22 m/s, 45 south of east. 22 m/s, due north. true false false false false 7) A CODE - 9 - 2084 10710 PHYS 0110 Introduction Midterm Exam 1 3 Vd Speed, m/s Vc 0 0 1 2 3 5 pt 4 Time, s 5 6 7 8 The Graph above shows the speed of a car traveling in a straight line as a function of time. The value of Vc is 3.80 m/s and the value of Vd is 5.30 m/s Calculate the distance traveled by the car from a time of 1.20 to 5.20 seconds. (in m) 8.A D 8.09 2.46 101 B E 1.17 101 3.57 101 C 1.70 101 8) C 1.70E+01 [16.66,17.34] Sig 3 - 5 MSU Unit: m Printed from LON-CAPA Licensed under GNU General Public License

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Maryland - ENES - 102
H.01: A rigid bar ACEB is supported by a pin at A and by two rods CD and EF. A horizontal load of 2 kip is applied at the location shown. Each rod is made of aluminum (E = 10 106 psi) with a diameter of 1.0 in. Before loading, the rods were unstress
Maryland - ENES - 102
H.03: The space truss ABCD is supported by rollers at points A, B, and C. A load of 8 kN acts vertically downward at point D. Coordinates for the points are: A = (6,0,0), B = (3,4.5,0), C = (0,0,0), and D = (3,2,6) m. Determine (a) the reaction force
Maryland - ENES - 215
ENCE 215 Quiz 4 (ave 6.4) NAME:_Nov 20, 20071. List the type of enzymes responsible for glucose degradation_constitutiveS, mg/LGlucoseLactateTime2. Plot the so-called noncompetitive inhibition in the following diagram which is theplot
Maryland - ENES - 215
ENCE 215Quiz 1 (average 7.4/10)Oct 30, 20071._cCommensalism is (a) both members benefit (b) one member benefits and the other harmed (c) one member benefits and the other neither benefited nor harmed2. _ b The energy for photosynthesis is
Maryland - ENES - 215
ENCE 215Quiz 2 (average 7.9)Nov 6, 20071._cWhich species has more Hg content (in g/kg)? (a) small fish (b) large fish (c) duck (d) algae2. _ c The so-called J curve is: (a) logistic growth (b) restricted growth (c) unrestricted growth (d)
Maryland - ENES - 215
ENCE 215 Quiz 3 (Average 7.2) NAME:_Nov 13, 20071. Clearly identify half saturation coefficient with the arrow sign (need the unit): 12 mg/L14 Ratem mg/L-hr 12 10 8 6 4 2 0 0 30 60 90 120 150 Substrate Conc. mg/L2. _ c Low K value refers to (a
FSU - MUT - 1112
The Leading-Tone Chord (vii) By its very nature, the leading-tone triad exhibits some unusual characteristics. First, its root should never be doubled because it is, of course, the leading-tone - an inherently unstable note. Instead, we almost always
SIU Carbondale - GEOL - 111
Overview Earth: long complex historyFormation of the Solar System Splitting and colliding of continents. Many of the changes on the planet Earth occur at a "snail's pace," generally too slow for people to perceive Learn earth history from th
Lafayette - ECON - 300
A MACROECONOMIC ANALYSIS OF THE FAIRTAX PROPOSALJuly 2006www.arduinlaffermoore.com 2006 Arduin, Laffer & Moore Econometrics. All rights reserved. No portion of this report may be reproduced in any form without prior consent. The information has b
Lafayette - ECON - 300
Submission of Americans For Fair Taxation on the FairTax Comprehensive Tax Reform Proposal to The President's Advisory Panel on Federal Tax Reform April 29, 2005Submitter's name: Organization name: Date of submission: Contact information:Category
Lafayette - ECON - 300
820 First Street NE, Suite 510 Washington, DC 20002 Tel: 202-408-1080 Fax: 202-408-1056 center@cbpp.org www.cbpp.orgFebruary 14, 2007MYTHS AND REALITIES ABOUT THE ALTERNATIVE MINIMUM TAXBy Aviva Aron-Dine The Alternative Minimum Tax was created
SIU Carbondale - GEOL - 111
Geol 111 Global Climate Change I: PaleoclimatologyRichard Fifarek Park. 307 MWF 8:30-9:30 T 1:00-2:00 fifarek@geo.siu.edu 453-7364Geol 111 Global Climate Change I: PaleoclimatologyOutline Introduction: What, Why Paleoclimate Proxies Glaciers Ice
SIU Carbondale - GEOL - 111
Landslide potential of regions in the U.S.Mass Wasting (Mass Movements) downward movement of earth materials under the force of gravity slow to rapid rates of movement (landslides) U.S.: $1.5 billion in damage & 25-50 deaths per yearTypes of M
SIU Carbondale - GEOL - 111
Geol 111Incised meanders (bends) of San Juan RiverStreams and FloodingIntroduction Water is the single most important agent in shaping the earth's surface Wears down mountains, carves valleys, levels plains (all part of erosion) & transports
SIU Carbondale - GEOL - 111
Study Guide for Exam III, Geol. 111 This study guide offers an outline-summary of the major points covered in the lecture material for Geol. 111. It includes example questions. It is recommended that for a thorough preparation for Exam III students s
St. Olaf - ASIAN - 124
Washington - CHEM - 457
Washington - CHEM - 457
Washington - CHEM - 457
Washington - CHEM - 457
Washington - CHEM - 457
Washington - CHEM - 457
Washington - CHEM - 457
Washington - CHEM - 457
Washington - CHEM - 457
Washington - CHEM - 457
Washington - BIO - 200
NAME_TA_Lab Section_ Biology 200 EXAM 2 Page 1 OF 10BIOLOGY 200 EXAM 3 Version A Make sure you have 10 pages. PRINT your name & lab info on EACH page. Points will be deducted this time if you don't do this. -1. You are studying a species of snail
Washington - BIO - 200
NAME_TA_Lab Section_ Biology 200 EXAM 2 Page 1 OF 10BIOLOGY 200 EXAM 3 Version B Make sure you have 10 pages. PRINT your name & lab info on EACH page. Points will be deducted this time if you don't do this. -1. During fertilization, the calcium w
Washington - BIO - 200
NAME_TA_Lab Section_ Biology 200 EXAM 2 Page 1 OF 11BIOLOGY 200 EXAM 2 Make sure you have 11 pages. Read through the entire question before answering. All questions have only one correct answer. Make sure you mark Version A or Version B on your
Washington - BIO - 200
NAME_TA_Lab Section_ Biology 200 EXAM 2 Page 1 OF 11BIOLOGY 200 EXAM 2 Make sure you have 11 pages. Read through the entire question before answering. All questions have only one correct answer. Make sure you mark Version A or Version B on your
Washington - CHEM - 238
The University of Oklahoma - ECON - 1123
The University of Oklahoma - ECON - 1123
The University of Oklahoma - ECON - 1123
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UCSB - ME - 17
ME 17 Spring 2007Homework #1 SolutionsProblem 1 (10 pts) (a) [1pt] Verify that v(0) = 0. Start with the equations given:v(t ) = c g mg tanh d t , m cd where tanh( x) =e x - e- x e x + e- xSubstitute t = 0 into the expression for v(
UCSB - ME - 17
Mathematics of Engineering - ME17 Spring 2007 Homework #2 - Solutions 1. (15 points total) (a) (10 pts) We need to write a Matlab program in which we take t = 0 : 0.1 : 3 and x(t) = v0x t + x0 , 1 2 y(t) = ay t + v0y t + y0 2 to find matrices with th
UCSB - ME - 17
ME 17 Spring 2007Homework #3 SolutionsProblem 1 (20 pts) (a) [15 pts] Write a Matlab program to determine (probabilistically i.e. Monte Carlo method) whether it's better to stick with Door 1 or switch to the other (unopened) door.% Goatprob.m: U
UCSB - ME - 17
Mathematics of Engineering - ME17 Spring 2007 Homework #4 - Solutions 1. (10 points total) (a) (3 pts) To compute the first three terms for the Taylor series of f (x) = sin(x) about the point x = /4, consider the general equation for a Taylor series
UCSB - ME - 17
Mathematics of Engineering - ME17 Spring 2007Homework #5 SolutionsProblem 1[6pts] For matrices, prove that tr(AB) = tr(BA). Given the formula (for nxn matrices A and B with elements Aik and Bkj ):ntr(AB) =i=1(AB)ii(1)and the fact:n(AB
UCSB - ME - 17
Mathematics of Engineering - ME17 Spring 2007Homework #7 SolutionsProblem 1[5pts] As for the last assignment, write a Matlab program to plot the five data points as circles, and the functions which pass through these points found using linear and
UCSB - ME - 17
Mathematics of Engineering - ME17 Spring 2007 Homework #6 - Solutions 1. (15 points total) (a) (2 pts) We need to plot the following data as circles (x1 , y1 ) = (3.2, 22.0), (x2 , y2 ) = (2.7, 17.8), (x3 , y3 ) = (1.0, 14.2),(x4 , y4 ) = (4.8, 38.
UCSB - ME - 17
%problem 5 clear all; maxtotal = 5280; % maximum sum total = 0; for ii=1:99 total = total + ii^2; % sum of squares if(total> maxtotal) % sum is greater than max sum, exit the loop break; end end % display the number of n's and its sum disp(['Value of
UCSB - ME - 17
%problem 1: bungee problem clear all; %input xl = 50; %initial guesses xu = 200; Ftol = 1e-4; %function tolerance Xtol = 1e-5; %root tolerance %bungee function f=inline('sqrt(m*9.81/0.25)*tanh(sqrt(9.81*0.25/m)*4)-36'); %use bisection [iter1,m1] = bi
UCSB - ME - 17
Problem 1 Matlab Code %Let's define a square matrix A=[10 2 -1; -3 -6 2; 1 1 5] %Determinant of A detA = det(A) %Inverse of A invA = inv(A) %Let's see if invA is really the inverse of A I1 = A*inv(A) I2 = inv(A)*A Output A= 10 2 -3 -6 1 1 detA = -289
Maryland - ENES - 102
Maryland - ENES - 102
Problem 4.41:Problem 7.20:Problem 7.20: (con't)Review Problem #1: A beam is held in equilibrium by a pin at A and a cable BDE that wraps over a frictionless pulley at D, which has a radius of 0.1 m. The beam supports a vertical force of P = 8 k
Maryland - ENES - 102
Problem 11.2:-Problem 11.4:Problem 11.6:Problem 11.10:--Problem 11.13:Problem 11.14:Problem 11.15:Problem 11.20*:
Maryland - ENES - 102
Problem H.03:Problem H.04:Problem H.05:Problem H.06:Problem H.07:Problem H.08:Problem H.09:Problem H.10:
Maryland - ENES - 102
Problem 10.4:Problem 10.5:Problem 10.6:Problem 10.7:Problem 10.7 - Alternate Method:Problem 10.14:Problem 10.15:--Problem 10.16:Problem 10.17:Problem 10.18:Problem 10.19:Problem 10.20:Problem 10.21:
Maryland - ENES - 102
Problem 10.22:-Problem 10.23:Problem H.11:Problem H.12:Problem 10.24:Problem 10.26:Problem H.13:Problem H.14:Problem H.14: (con't.)
Maryland - ENES - 102
Problem 10.31:Problem 10.32:Problem H.15:Problem H.16:Problem H.16: (con't.)Problem 10.34:Problem 10.35:Problem 10.36:Problem 13.5:
Maryland - ENES - 102
Problem 13.15:Problem 13.20:Problem 13.20: (con't)Problem 13.23:Problem 13.28:Problem 13.31:Problem 13.34:Problem 13.37:Problem 13.38:
Maryland - ENES - 102
Problem 13.43:Problem 13.44:Problem 13.49:Problem 13.49: (con't)Problem 13.52:Problem 12.1(a):Problem 12.4(a):Problem 12.6:Problem 12.7(a):Problem 12.8:Problem 12.9:Problem H.17:Problem H.18:
Maryland - ENES - 102
Problem 12.10:Problem 12.12:Problem 12.13:Problem 12.14:Problem 12.32:Problem 12.33:Problem 12.34:Problem 12.34: (con't)Problem 12.36:Problem 12.36: (con't)