test0241 - Page 1 Test#4 PHYS 1111 Section Nov 25 2002...

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Page 1 Test #4, PHYS 1111, Section 5 (12:20-1:10pm) Nov. 25, 2002, Stancil This is a multiple choice test of 13 questions. Give only one answer for each question. Besure to enter your name and SSN on the form. You may keep the question sheet. 1. A sewing machine needle moves up and down in simple harmonic motion with an amplitude of 1.27 cm and a frequency of 2.55 Hz. What is the maximum speed of the needle? a. 3.18 cmls ® 20.3 cmls c. 10.1 cmls d. 6.36 cmls v 'fr, ~)<::. A rAJ" -=' II 2. n .f =:- (1,')7(1~) l-rr{}·55 2. A mass of 0.150 kg is attached to a spring with a force constant of 3.58 Nlm and undergoes simple harmonic oscillations with an amplitude of 7.50 cm. What is the total mechanical energy of the system? ~ a. 0.0201 J "-;-..L Al I( AI)" ) @ 0.0101 J c;...,:; 2 k .:::- 5.5Y_ lO,0751 c. 0.269 J L II? d. 0.134 J 3. An astronaut has lanaea on another planet and conducts an experiment to determine the acceleration of gravity on that planet. She uses a
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