How fast should the bat fly to hear a beat frequency
A bat flies toward a wall, emitting a steady sound of frequency 2.00kHz . This bat hears its own sound plus the sound reflected by the wall. How fast should the bat fly in order to hear a beat frequency of 10.0Hz ?
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How does Honorable Stephen Douglas and Honorable Abraham Lincoln differ in their views on what rights black Americans ought to enjoy?
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Do you think that communication is more important to leaders now than it was in Hitler's and FDR's time? Explain why you think so or why you disagree.
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What is the force of air resistance on a 100kg sky-diver who is falling with a constant acceleration of 4m/s/s?
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