HW 1 - 1./3 pointsNotesQuestion: Walker4 13.P.007. You rev...

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1. –/3 points Notes Question: Walker4 13.P.007. You rev your car's engine to  2570  rpm (rev/min). (a) What is the period and frequency of the engine? period   s frequency   Hz (b) If you change the period of the engine to  0.141  s, how many rpms is it doing?   rpm 2. –/2 points Notes Question: Walker4 13.P.010. The position of a mass oscillating on a spring is given by  x  = ( 1.4  cm) cos [2 π t  / ( 0.46  s)]. (a) What is the period of this motion?   s (b) What is the first time the mass is at the position  x  = 0? t  =   s 3. –/3 points Notes Question: Walker4 13.P.018. A mass attached to a spring oscillates with a period of 3.35 s. (a) If the mass starts from rest at  x  =  0.0520  m and time  t  = 0, where is it at time  t  =  6.32  s?   m (b) Is the mass moving in the positive or negative  x  direction at  t  =  6.32  s?  positive 
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This note was uploaded on 03/08/2012 for the course PHYS 116 taught by Professor Staff during the Fall '08 term at University of Washington.

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HW 1 - 1./3 pointsNotesQuestion: Walker4 13.P.007. You rev...

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