Physics, 30.12.2020 01:00 tannercarr7428
How does the Doppler effect explain why a siren's pitch increases as it approaches you? A. The siren moves away from sound waves it has already produced, increasing their wavelength. B. The siren moves closer to sound waves it has already produced) decreasing their wavelength C. The siren moves away from sound waves it has already produced decreasing their wavelength, D. The siren moves closer to sound waves it has already produced, increasing their wavelength
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The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force
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At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid
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A3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular? a 3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular?
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Physics, 22.06.2019 08:30
What object a collides with object b and bounces back its final momentum is?
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How does the Doppler effect explain why a siren's pitch increases as it approaches you?
A. The sire...
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