p201f04-exam02

p201f04-exam02 - Seat Physics P201 R Tayloe/R Heinz EXAM#2...

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Seat # Physics P201 R. Tayloe/R. Heinz EXAM #2 October 21, 2004 7:00–9:00 PM INSTRUCTIONS 1. Your exam is form 1_ .Please indicate with form (1, 2, 3, or 4) exam you have by marking the appropriate bubble in column “P” of the SPECIAL CODES box on your answer sheet. 2. Sit in SEAT # given above. 3. DO NOT OPEN THE EXAM UNTIL YOU ARE TOLD TO DO SO. 4. Print your name (last name first) and blacken in the letters on the answer sheet with a #2 pencil. 5. Print your student number (identification number) and blacken in the numbers on the answer sheet with a #2 pencil. 6. Use the fronts and backs of the question sheets for scratch work. Do not use any other scratch sheets. 7. This is a multiple choice exam. Blacken in the answer to each question on the answer sheet. Fill in one and only one answer to each question. 8. Keep your eyes on your own work. 9. You have two hours to complete the exam. When you finish, please show your picture ID as you turn in your answer sheet. Please leave quietly so others are not disturbed. 10. THERE ARE 24 QUESTIONS PLEASE ANSWER ALL OF THEM. THERE IS NO PENALTY FOR GUESSING! This is a closed book, closed note exam! You may use only a calculator and two self-prepared sheets of formulas.
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1. Jennifer is standing on the edge of a cliff. She throws ball 1 straight down with an initial speed v . She throws ball 2 horizontally with the same initial speed v . She throws ball 3 at 45º above a horizontal with the same initial speed v . She throws ball 4 straight up with an initial speed v . All four balls land 12 m below the cliff edge. Neglecting air resistance, a. ball 1 lands with the greatest speed. b. ball 2 lands with the greatest speed. c. ball 3 lands with the greatest speed. d. ball 4 lands with the greatest speed. e. all balls land with the same speed. 2. A hiker ascends from a point on the Colorado River up to a point on the south rim of the Grand Canyon. During the hike, the work done by gravity on the hiker is a. negative and independent of the path taken b. equal to the work done by the normal forces c. negative and depends on the path taken d. positive and depends on the path taken e. zero 3. The force that must be exerted to drive a nail into a wall (in the x direction) is shown in the graph of the figure below . The first 1.2 cm are through soft drywall;
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p201f04-exam02 - Seat Physics P201 R Tayloe/R Heinz EXAM#2...

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