Physics, 19.07.2021 19:30 Lesquirrel
A tennis player hits a ball hard and 0.80 seconds later hears the echo from a wall. The speed of sound in air is 340m/s how far away is the player from the wall
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A40 kilogram skier starts at the top of a 12 meter heigh slope. at the bottom she is traveling 10 meters per second how much does she lose to friction? a. 4,704 joules b. 2,704 joules. c.2,000 joules d. she doesnβt lose any because mechanical energy is conserved. 35
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A tennis player hits a ball hard and 0.80 seconds later hears the echo from a wall. The speed of sou...
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