Physics, 15.04.2020 21:12 lovemykay2355
Dan is gliding on his skateboard at 4.00 m/s . He suddenly jumps backward off the skateboard, kicking the skateboard forward at 6.00 m/s (as measured by an observer on the ground). Dan's mass is 60.0 kg and the skateboard's mass is 5.00 kg . How fast is Dan going as his feet hit the ground?
m/s.
Answers: 3
Physics, 21.06.2019 18:00
Abaseball has a mass of 0.145 kg and approaches a bat at 40.0 m/s. after it is hit, the ball leaves the bat at 50.0 m/s directly back. find the impulse of the bat on the ball. 7.25 kg*m/s 13.1 kg*m/s 5.80 kg*m/s 1.45 kg*m/s
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A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)
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Dan is gliding on his skateboard at 4.00 m/s . He suddenly jumps backward off the skateboard, kickin...
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