exam2_2004s_sol - Mark answers in spaces 27-52 on the...

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Physics 221 2004 S Exam 1 Page 1 of 17 PHYSICS 221 Spring 2004 EXAM 2: March 11 2004 8:00pm—9:30pm Name (printed): ____________________________________________ ID Number: ______________________________________________ Section Number: __________________________________________ INSTRUCTIONS: Each question is of equal weight, answer all questions. All questions are multiple choice. Before turning over this page, put away all materials except for pens, pencils, erasers, rulers, your calculator and “aid sheet”. An “aid sheet” is one two sided 8½ × 11 page of notes prepared by the student. Note also formula sheets pages 11-13. "In general, any calculator, including calculators that perform graphing numerical analysis functions, is permitted. Electronic devices that can store large amounts of text, data or equations are NOT permitted." If you are unsure whether or not your calculator is allowed for the exam ask your TA. Examples of allowed calculators: Texas Instruments TI-30XII/83/83+/89, 92+ Casio FX115/250HCS/260/7400G/FX7400GPlus/FX9750 Sharp EL9900C. Examples of electronic devices that are not permitted: Any laptop, palmtop, pocket computer, PDA or e-book reader. In marking the multiple choice bubble sheet use a number 2 pencil. Do NOT use ink. If you did not bring a pencil, ask for one. Fill in your last name, middle initial, and first name. Your ID is the middle 9 digits on your ISU card. Special codes K to L are your recitation section , for the Honors section please encode your section number as follows: H1 02; H2 13 and H3 31 . If you need to change any entry, you must completely erase your previous entry. Also, circle your answers on this exam. Before handing in your exam, be sure that your answers on your bubble sheet are what you intend them to be. It is strongly suggested that you circle your choices on the question sheet. You may also copy down your answers on the record sheet (page 14) and take this page with you for comparison with the answer key to be posted later. When you are finished with the exam, place all exam materials, including the bubble sheet, and the exam itself, in your folder and return the folder to your recitation instructor. No cell phone calls allowed. Either turn off your cell phone or leave it at home. Anyone answering a cell phone must hand in their work; their exam is over. There are 26 questions on this exam labeled 27-52. Mark answers in spaces 27-52 on the answer sheet. Best of luck, David Atwood and Anatoli Frishman Mark answers in spaces 27-52 on the answer sheet No class Friday March 12 No class Friday March 12
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Physics 221 2004 S Exam 1 [27] A particle of mass 1kg travels in uniform circular motion at the speed of 4m/s. How much work is done in joules on the particle by centripetal force acting on it during one quarter of one revolution (A) 16 π J (B) 8 π J (C) 4 π J (D) 0 J (E) None of the above No work is done by centripetal force since it is perpendicular to motion [28] A bullet with a mass of 3.00g and a speed of 400m/s penetrates a wooden block horizontally to a depth of 2.00cm. Assume that a constant resistance force slows the bullet. What is the magnitude of this resistance force?
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exam2_2004s_sol - Mark answers in spaces 27-52 on the...

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