Physics, 28.07.2019 10:00 Galaxystyx
How does the doppler effect explain the sound you hear when a race car comes toward and then passes a camera? a) the pitch is higher as it approaches and then becomes lower the moment it passes. b) the pitch is lower as it approaches and then becomes higher the moment it passes. c) the sound is louder as it approaches and then becomes softer the moment it passes. d) the sound is softer as it approaches and then becomes louder the moment it passes.
Answers: 1
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If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 380j of energy to the room?
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The diagram shows a wave. the quantity shown is the amplitude. this quantity is directly proportional to which of these other quantities? a) energy b) frequency c) period d) wavelength
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