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Bats emit a high pitched wave that is reflected off their prey and back to the...

Bats emit a high pitched wave that is reflected off their prey and back to the bat. The bat can then know where the prey is in order to eat it. The frequency that the bat emits is 50,000 HZ and the bat is moving 10 m/s towards its prey. The temperature of the air is 20 degrees Celsius.

a) What is the speed of the prey if the bat hears a frequency of 50,050 Hz?

b) Is the prey moving toward the bat or away from the bat?

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