Can anyone help with this problem?!?
You are flying in an ultra-light aircraft at a speed of 40.0 m/s. An eagle, whose speed is 17 m/s, is flying directly towards you. Each of the speeds is relative to the ground. The eagle emits a shrill cry whose frequency is 3500 Hz. The speed of sound is 330 m/s. What frequency do you hear??
find the net speed of the sound in relation to us
40 m/s -17 m/s – 330 m/s = 307 m/s
now find the conversion of m/s to Hz
3500 Hz / 330 m/s = 10.61 Hz per m/s
so….
307 m/s * 10.61 = 3257 hz is what we would hear
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