The figure to the right shows the motion graph of a simple harmonic wave. Which

Question

The figure to the right shows the motion graph of a simple harmonic wave. Which point (s) have maximum displacement? Answer: Which point(s) have a negative velocity? Answer: What is the period of the wave? Answer Units By wiggling the end of a rubber hose at a frequency of 5 Hz, a wave train is launched down the hose. The velocity of the wave is determined to be 10 m/s. Now you reduce by half the frequency at which you wiggle the end. But you double the tension in the hose. All other characteristics are the same. The velocity of the new wave will be: slower the same faster If a pendulum completes 100 full swings in 7 sounds, its frequency is: 0.05 h_z 14.3 H_z 20 H_z 100 H_z

Explanation / Answer

19)

A) E

B) C

C) 4s

20) faster

21) b) 14.3 hz

f = 100/7

= 14.3 hz

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