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Physics, 21.08.2019 00:10, htorres2p8urw0
By what factor is the intensity of sound at a rock concert louder than that of a whisper when the two intensity levels are 120 db and 21 db, respectively? c) 6.50x1010 a) 3.16x1010 d) 7.94x100 b) 1.58x1010 e) 3.98x109
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Physics, 21.06.2019 20:30, 173899
Water at room temperature of 20.0°c is poured into an aluminum cylinder which has graduation markings etched on the inside. the reading in the graduations is 300.0 cc. the cylinder with the water in it is then immersed in a constant temperature bath at a temperature of 100°c. what is the reading for the level of water on the graduations of the cylinder after the water and the cylinder reach thermal equilibrium with the bath? the volume coefficient of expansion of water is 2.07 x 10^-4 k-1, and the linear coefficient of expansion of aluminum is 23.0 x 10^-6 k-1. a) 305.0 cc b) 304.0 cc c) 303.5 cc d) 303.3 cc e) 304.5 cc
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Physics, 22.06.2019 09:00, KillerSteamcar
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Physics, 22.06.2019 10:30, laura52677
Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?
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