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### Ph101-08&09-2fin

Course: PHYSICS 101, Spring 2007
School: Kuwait University
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Word Count: 756

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University Physics Kuwait Department Final Examination Physics 101 June 16, 2009 8:00-10:00 am Name: Student No. ... ___________________________________________________________________________ Instructors Name: # Q1 Q2 Q3 Q4 P1 P2 P3 P4 P5 P6 P7 P8 Points Total Important 1. Answer all questions and problems. 2. Each question will be assigned 1 point. 3. Each problem will be assigned 2 points 4. No solution =...

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University Physics Kuwait Department Final Examination Physics 101 June 16, 2009 8:00-10:00 am Name: Student No. ... ___________________________________________________________________________ Instructors Name: # Q1 Q2 Q3 Q4 P1 P2 P3 P4 P5 P6 P7 P8 Points Total Important 1. Answer all questions and problems. 2. Each question will be assigned 1 point. 3. Each problem will be assigned 2 points 4. No solution = no points 5. Mobiles and pagers are not allowed during the exam 6. Programmable calculators are not allowed. Good Luck Part I : MC Questions 1. A bomb at rest explodes into two fragments of un-equal masses that go in opposite directions. What is the total momentum of the system after the explosion? a) b) c) d) 0 50 kg.m/s -25 kg.m/s There is no enough information. 2. The elastic potential energy in a spring is a) b) c) d) Always positive Always negative Sometimes positive and sometimes negative None of the above 3. A projectile is thrown with an initial velocity point in its path, its speed (in m/s) will be a) b) c) d) zero 6 8 10 m/s. When it reaches the highest 4. A chain of three identical links is lifted upward with constant speed by an applied force F as shown. The net force on link 3 is a) zero b) F c) d) Part II : Problems 1. An object is moved a distance 2 m in the positive x-direction. One of the forces acting on the object is F = 2 i + 3 j (in N). Find the work done (in Joule) by this force. 2. A car starts to move from rest along a straight line and accelerates at a rate of 1.6 m/s2 for 20 seconds. Then it continues moving with a constant speed for 70 seconds. Find the total distance (in m) covered by the car. Finding x1 Finding v Finding x2 Finding x x = x1 + x2 = 320 + 2240 = 2560 m 3. In Disneyland a large cylinder of radius 4.0 m spins about a vertical axis. When it reaches an angular speed , the cylinder floor drops down and the passengers inside it are held up against the wall (see the figure). If the coefficient of static friction between the passenger and the wall is 0.10, find the minimum of value .(in rad/s). = = 20 m/s 4. A block m1 = 2.0 kg is placed on top of another block m2= 5.0 kg and the system moves on a rough horizontal surface (k= 0.20 ) under the action of a force F = 30 N applied to m2. Find the minimum coefficient of static friction between the two blocks such that m1 does not slide off. = a = 2.28 m/s2 5. A 10-kg block is released from point A on a track ABCD as shown in the figure. The track is frictionless except for the portion BC, of length 6 m. The block travels down the track and hits a spring of force constant k=2000 N/m and compresses it a distance of 0.30 m from its equilibrium position before coming momentarily to rest. Determine the coefficient of kinetic friction between the block and the portion BC of the track. Wf = E = Ef - Ei Wf = (Ufg + Ufs + Kf ) (Uig + Uis + Ki ) -k m g d = ( 0 + k x2 + 0 ) ( m g h + 0 + 0 ) -k (10) (10) (6) = (2000) (0.3)2 10(10)(3) k = 0.35 6. A billiard ball A moving at 5 m/s strikes a stationary ball B of the same mass. After the collision ball A moves at 4 m/s at an angle of 37 with respect to the original line of motion. Assuming an elastic collision, find the magnitude of the final velocity (in m/s) of ball B. mvAi = mvAf cos(37) + mvBf cos(53) 5 = 4 cos(37) + vBf cos(53) vBf = 3 m/s Another Solution = = 7-A particle of mass m = 0.50 kg is attached to the surface of a hoop of mass M = 2.0 kg and radius R = 0.40 m (see figure). If the system starts from rest at t=0 and rotates about the z axis with angular acceleration = 2.0 rad/s2, find its kinetic energy (in joule) at t= 60 s (Ihoop = MR2). = 0 + t = 0 + 2 (60) = 120 rad /s K = I 2 = ( MR2 + mR2 ) 2 K = ( 2 + 0.5 ) (0.4)2 (120)2 K = 2880 J 8- A force F = - 2 k ( in Newtons) is applied to an object that is pivoted about a fixed axis though point O along the z-direction (see figure). If the force is applied at a point of coordinates ( 2, 4, 0 ) ( in meters), find the magnitude of the net torque (in mN) and the angle it makes with the positive z axis. Angle with z axis = 90 degree
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Kuwait University - PHYSICS - 101
1Kuwait UniversityPhysics DepartmentFinal ExaminationPhysics 101 (Summer 09) A August 16, 2009 2:00-4:00 pmName: KEY Student No. . _ Write down your Instructors Name:# Points # Points TotalQ1Q2Q3Q4P1P2P3P4P6P7P8Important 1. Answer all qu
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Physics Department Physics 101II First Midterm ExamSpring 2008 Wednesday, March 26th, 200812:30 p.m. 02:00 p.m. Students Name: . Students Number: . Choose your Instructors Name:Dr. Ahmad A. Al-Jassar Dr. Adnan Al-Yaseen Dr. Hasan Raafat Dr. Tarek Rama
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Part I : Questions (Choose the correct answer)Ver - Ar rr 1. A , B and C are three vectors directed along the x, y and z axes respectively as shown. rrr If A = B = 4 and C = 2 then the value of A B C is()*4*8* 16* 32zr Cr By xr A2. A particl
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Physics Department Physics 101I Midterm IFall 2008 Monday November 10, 200812:30 p.m. 01.55 p.m. Students Name: . Students Number: . Choose your Instructors Name: Drs. Al-DOSSARI Fatma, AL-JASSAR Ahmed, AL-JASSAR Halah., AL-REFAE Tarek, AL-YASEEN Adnan
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Kuwait UniversityPHYS 101 General Physics 1Date : April 15, 2009Department of Physics (A) First Mid-Term ExaminationTime:12:30- 1:55 PMStudents Name:_KU ID:_Section:_Instructors Name:_INSTRUCTIONS: Do not start until you are told to do so. Solve al
Kuwait University - PHY - 101
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Kuwait University - PHY - 101
Physics 101Second Midterm ExamFall 2007-2008 Saturday, December 8, 2007 9:00 a.m. 10:30 a.m..Students Name:. Students Number: Choose your Instructors Name : Prof. Fekri El-Akkad. Dr. Yacoub Makdisi Dr. Ahmed Ali Al-Jassar Dr. Abdel Mohsen Habib Dr. T
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Physics 101Second Midterm ExamSpring 2007-2008 Saturday, May 10, 2008 9:00 a.m. 11:00 a.m.Students Name:.Students Number: . Choose your Instructors Name : Prof. Fekri El-Akkad. Dr. Ahmed Ali Al-Jassar Dr. Hala K. Al-Jassar Dr. Abdel Mohsen Habib Dr.
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Kuwait UniversityDepartment of Physics PHYS 101Date : August 8, 2009Second Mid Term ExaminationGeneral Physics 1Time: 9.00- 10.30 AM 0.30Students Name:_KU ID:_Section:_ :_ Instructors : Drs. Ashraf Zaher, Adnan Yasin, Fatemah Al-Dousari, Drs. Hala A
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Kuwait UniversityPhysics 102Physics DepartmentFirst Midterm Exam (Summer Semester) J ul y 7 , 2 0 0 5-Time: 10.30 to 12.15 p.m.NameStudent No. Instructors: Drs. Bhatia, Farhan, Lajko, Marafi, Rakhshani, Razee, SharmaFundamental Constantsk= 1 = 9.0
Kuwait University - PHY - 101
Kuwait UniversityPhysics 102Physics DepartmentFirst Mid Term Examination March 22, 2007 11.00 am 12.30 pmName Student No. Instructors: Drs. Abdel Karim, K. Bhatia, E. Davis, A. Farhan, Y. Kokay, P. Lajko, H. Manaa, M. Marafi, S. Razee, M. Sharma. Note
Kuwait University - PHY - 101
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1. The uniform electric field between two conducting charged plates shown in the figure has a magnitude of E = 28.40 N/C. The plate separation is 1 m, and we launch an electron from the bottom plate directly upward with vo = 3106 m/s. Will the electron re
Kuwait University - PHY - 101
Part I: Problems1.Show units.yBelow, q1 (= 2.0 C) and q2 (= 3.0 C) are point charges; a = 2.0 mm. Find the y component (in N) of the net electric force on a point charge q (= 4.0 nC) at point P .q1x(3 points)F1 q2 F2 aPaFy = +F1 =k |q |q1 = +1
Kuwait University - PHY - 101
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Kuwait University - PHY - 101
Kuwait UniversityPhysics DepartmentPhysics 102 First Midterm Exam Second Semester (2008-2009)April 16, 2009 (6.00- 7:30 p.m.)Name: Student No: .Instructors: Drs. Abel Karim, Afrousheh, Davis, Kokaj, Marafi, Rakhshani, Ramadan, Razee, and Sharma(Fun
Kuwait University - PHY - 101
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Kuwait University - PHY - 101
Kuwait UniversityPhysics DepartmentPhysics 102 Second Summer Midterm Examination July 24, 2005 Time: 5:00 pm 6:45 pm NameStudent No. Instructors: Bhatia, Rakshani, Farhan, Lajko, Marafi, Razee &amp; SharmaFundamental constantsk=1 = 9.0 10 9 N m 2 / C 2 4
Kuwait University - PHY - 101
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Kuwait University - PHY - 101
Part I: Problems1.Show working.A 315 F capacitor has dielectric (dielectric constant of 2.90) lling the 0.275 mm gap between its parallel plates. The charge on each plate has magnitude 0.167 C. What is the magnitude of the surface charge density on eac
Kuwait University - PHY - 101
Physics 102 Midterm (2) Solutions Summer 2206/2007 Part I: Solve the following Problems1. A copper wire of length L = 100 m connects two points A &amp; B. The electric potential at point B is 25 V less than that at point A. If the resistivity of copper is 1.
Kuwait University - PHY - 101
Problems - Show your solution in detail. 1. Find the potential difference between points a and b shown in the figure. Given C1 = 1 F, C2 = 2 F, C3 = 3 F, C4 = 4 F, C5 = 5 F, and V2 = 12 V. 3 pointsC1C2 V2C3Q 1 = Q2 = Q3 = C 2V2 = 24 C ; Q 24C V1 = 1 =
Kuwait University - PHY - 101
Solve the following 8 problems:1.(2 marks) Four identical capacitors, each of capacitance 1F, are connected to a source with emf as shown in the figure. Calculate the equivalent capacitance of the network. CC CCCeq = 3C/52.(5 marks) Two air-filled ca
Kuwait University - PHY - 101
Part I: Problems 1. Two parallel plate capacitors ( C1 = C2 = 10 F) are connected in parallel as shown in the figure below. Initially each capacitor carries a charge q = 10 C. An insulating material with dielectric constant K = 4 is inserted between the p
Kuwait University - PHY - 101
Problems1.Please show all working; give only one solutionA proton moves in a region of uniform electric and magnetic elds: E = (75.0 N/C)b and B = (0.200 T)b + (0.300 T)b + (0.400 T)b. Find the components of the protons acceleration a when its velocity
Kuwait University - PHY - 101
Kuwait University Physics 102 Fall Semester 2008-2009Physics DepartmentSecond Midterm Examination December 20, 2008 Time: 3.00 p.m. to 4.30 p.m. Name:. Student No:.Instructors: Drs. AbdelKarim, Afrousheh, Davis, Kokay, Lajko, Marafi, Rakhshani, Razee,
Kuwait University - PHY - 101
Kuwait UniversityPhysics 102Physics DepartmentSecond Midterm Exam Summer Semester (2008-2009)August 5, 2009 (6.00- 8:00 p.m.)Name: Student No: .Instructors: Drs. Abel Karim, Afrousheh, Davis, Marafi, Ramadan, Razee, Manaa, Kota Rao(Fundamental con
Kuwait University - PHY - 101
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Kuwait University Physics 102Physics DepartmentFinal Exam - Semester II (2006-2007)May 30, 2007 (11.00 a.m. - 1:00 p.m.)SolutionsName: Student No: .Instructors: Drs. M. Abel Karim, Bhatia, Davis, Farhan, Lajko, Manaa, Marafi, Razee, and Sharma(Fund
Kuwait University - PHY - 101
Problems - Detailed solution is required. (Solutions) 1. Four point charges are located on the x-y-plane as shown in the figure. Given q = 1 nC, the x-component of the electric field at the origin is:3 pointsa) 18.0 N/C b) 12.7 N/Cq (1m, 1m)yq (1m, 1