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Question: A bat emits sound of wavelength 6.57 mm. It is flying toward a cave wall at 27.0 m/s. The speed of sound is 341.5 m/s.
A- What is the frequency of the reflected sound that it hears?
I need expert help for the above question.
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What is the (magnitude of the) velocity of a rollercoaster at the bottom of a track that is 89.8 m high if it starts from rest? (Use the value g = 9.8 m/s2 for the acceleration of gravity.) Please provide work to explain
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