Physics, 17.12.2019 18:31 organicmemez
Aspeaker at the front of a room and an identical speaker at the rear of the room are being driven at 456 hz by the same sound source. a student walks at a uniform rate of 1.02 m/s away from one speaker and toward the other. how many beats does the student hear per second? (take the speed of sound to be 343 m/s.) hint: the doppler effect causes both frequencies to be shifted. the difference between those two frequencies is what causes the beats. hz ( + 0.2 hz)
Answers: 2
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Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.
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Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?
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When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell
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Aspeaker at the front of a room and an identical speaker at the rear of the room are being driven at...
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