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Physics, 21.06.2019 21:40
Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?
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Physics, 21.06.2019 22:00
Bernie drove home from a vacation in 1.5 hours. he traveled a total distance of 60 miles. what was his average speed in miles per hour? a. 60 mph b. 90 mph c. 40 mph d. 55mph
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Physics, 21.06.2019 22:00
If the speed of a particle triples ,by what factor does its kinetic energy increase?
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Physics, 22.06.2019 06:30
The mini-refrigerator fire was most likely caused by what type of wiring?
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How might the distribution of freshwater on earth change if surface temperature decreased?...
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