What is the beat frequency that you hear

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Reference no: EM13303574

You are driving a car which is heading 20 m/s towards a brick wall. You sound a horn which emits at a frequency of 400 Hz when at rest.

A) If the horn acts like an organ pipe which is open on each end, what is the length of the organ pipe in cm?

B) What is the beat frequency that you hear?

Reference no: EM13303574

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