Physics, 28.12.2019 01:31 aryanaengel44
An electrical motor provides 0.50w of mechanical power. how much time will it take motor to lift a 0.1 kg mass at constant speed form to a shelf 2.0 m above the floor?
a. 0.25s
b. 0.40s
c. 1.0s
d. 4.0s
Answers: 2
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On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2.
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An electrical motor provides 0.50w of mechanical power. how much time will it take motor to lift a 0...
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