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Unformatted text preview: PHYS 125 Fall 2007 Exam 1 Physics 125 Fall 2007: Exam #1 Form #1 Please print your name:_________________________________________ Please list your discussion section number:_________________________ Please list your discussion instructor:______________________________ Instructions ! Fill in your name above. ! Each exam will have a different version number which will need to be written in the area of the scantron marked Form. ! Record all your answers on the answer sheet provided. ! This will be a 1.5 hour, closed book exam. The exam includes 20 questions. ! You may use a 3x5 note card containing information you think might be useful. You can write on both sides of the card if you like. ! This is a closed-book exam. You may use a calculator which is for numerical calculations only and not to refer to stored information . ! There is only ONE correct answer for each multiple-choice question. No partial credit will be awarded. ! You may be asked to show your University student ID card when you turn in your exam. Discussion section reminder: Section 003 TUE/THUR 08:00-09:00 Salin Bernstein Section 004 TUE/THUR 09:00-10:00 Salin Bernstein Section 005 TUE/THUR 10:00-11:00 Salin Bernstein Section 006 TUE/THUR 12:00-13:00 Salin Bernstein Section 007 TUE/THUR 13:00-14:00 Salin Bernstein Section 008 TUE/THUR 14:00-15:00 Salin Bernstein Section 009 TUE/THUR 14:00-15:00 Konstantin Bobkov Section 010 TUE/THUR 15:00-16:00 Arthur Cole Section 011 TUE/THUR 16:00-17:00 Konstantin Bobkov Section 012 TUE/THUR 12:00-13:00 Andrew Tomasch Section 016 TUE/THUR 11:30-13:00 Arthur Cole Section 017 TUE/THUR 13:00-14:30 Arthur Cole Section 018 TUE/THUR 08:00-09:00 Andrew Tomasch Section 019 TUE/THUR 09:00-10:00 Andrew Tomasch 10/04/2007 - 1 - Form #1 PHYS 125 Fall 2007 Exam 1 1. A plane travels at a speed of 300 km/h relative to the ground at an angle of 30 north of east. The wind travels at a speed of 100 km/h relative to the ground at an angle of 60 north of east. What is the velocity, magnitude and direction, of the plane to the wind? A) 219 km/h, 16.8 north of east B) 219 km/h, 16.8 south of east C) 228 km/h, 18.4 north of east D) 412 km/h, 71.6 north of east E) 228 km/h, 18.4 north of east 2. For the figure shown below, which of the following are action reaction pairs? I) Force of friction of m 2 on m 1 and the force of friction of m 1 on m 2 II) The weight of m 2 and the normal force on m 2 III) The weight of m 2 and the weight of m 1 IV) The force of gravity on m 1 and force of m 1 on the Earth V) The normal force of m 2 on m 1 and the normal force of m 1 on m 2 A) I, II, V B) II, IV, V C) I, IV, V D) I, II, III, IV, V E) IV, V 10/04/2007 - 2 - PHYS 125 Fall 2007 Exam 1 1. A plane travels at a speed of 300 km/h relative to the ground at an angle of 30 north of east. The wind travels at a speed of 100 km/h relative to the ground at an angle of 60...
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