Physics, 10.11.2020 22:10 Theresab2021
If a 900 newton tv is moved 3m in 60 seconds, how much power was used?
A. 5
B. 45
Answers: 1
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Amerry-go-round of radius r, shown in the figure, is rotating at constant angular speed. the friction in its bearings is so small that it can be ignored. a sandbag of mass m is dropped onto the merry-go-round, at a position designated by r. the sandbag does not slip or roll upon contact with the merry-go-round. how would you rank the following different combinations of m and r on the basis of the angular speed of the merry-go-round after the sandbag "sticks" to the merry-go-round from largest to smallest. a) m = 10kg, r = 0.25r b) m = 20kg, r = 0.25r c) m = 10kg, r = 0.50r d) m = 10kg, r = 1.0r e) m = 15kg, r = 0.75r f) m = 40kg, r = 0.25r
Answers: 1
If a 900 newton tv is moved 3m in 60 seconds, how much power was used?
A. 5
B. 45...
A. 5
B. 45...
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