Denny jumps up and down on his bed, taking 0.75 s for each jump. What is the frequency of Denny’s jumping? *Use g=9.8 m/s^2       a. 4.7 Hz       b. 2.1 Hz       c. 3.16 Hz       d. 1.3 Hz       e. None of the above

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Chapter13: Vibrations And Waves
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Problem 33P: Given that x = A cos (t) is a sinusoidal function of time, show that v (velocity) and a...
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2. Denny jumps up and down on his bed, taking 0.75 s for each jump. What is the frequency of Denny’s jumping? *Use g=9.8 m/s^2
 
 
 
a. 4.7 Hz
 
 
 
b. 2.1 Hz
 
 
 
c. 3.16 Hz
 
 
 
d. 1.3 Hz
 
 
 
e. None of the above
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