# Physics

A certain sound has a wavelength of 1.70m in the air. The speed of sound in water is 1.45x10³m/s. The speed of sound in steel is 5.00x10³m/s.

a) What is the wavelength in water for the sound which has a wavelength of 1.70m in the air?
b) What is the wavelength of this sound in steel?

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1. The wave equation: freq*wavelength=speed
a) You are going to have to assume a speed of sound in air: 335m/s
wavelengthwater= wavelengthair*speedwater/speedair
= 1.70*1.45e3/335= 7,35 m
b. wavelengthsteel=1.70*5e3/335=25m
so as speed goes up, wavelength gets longer

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bobpursley

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