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What is the frequency of the wave (in Hz)?


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Question

A wave traveling 79 m/s has a wavelength of 3.0 m. What is the frequency of the wave (in Hz)?

 
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If the wavelength is 0.43 m, what is the speed of waves on the Slinky (in m/s)?

Question

A 3.6 Hz continuous wave travels on a Slinky. If the wavelength is 0.43 m, what is the speed of waves on the Slinky (in m/s)?

 
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An audio speaker producing a steady sound at an outdoor concert is 20 ft

Question

An audio speaker producing a steady sound at an outdoor concert is 20 ft away from you. If you move to a position where the speaker is 76 ft distant, by what factor will the amplitude of the sound change?

Af/Ai=

 
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What is the heater’s resistance?

Question

A current of 25.9 A

 flows through an electric heater operating on 220 V.

 What is the heater’s resistance?

 Ω

 
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