Find the wavelength of the sound

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Reference no: EM1367264

Q. A bat emits a sound whose frequency is 70.8 kHz. The speed of sound in air at 20oC is 343 m/s. However, the air temperature is 42.2 oC, so the speed of sound is not 343 m/s. suppose that air behaves like an ideal gas, and find the wavelength of the sound.

Q. The height of a helicopter above the ground is given by h = 3.20 t3, where h is in meters and t is in seconds. At t = 1.95s, the helicopter releases a small mailbag. How long after its release does mailbag reach the ground?

Reference no: EM1367264

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