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An object with a mass of 120 kilograms is moving at a velocity of 60 m/s. What is its momentum? A. 2 kg-m/s B. 7,200 kg-m/s C. 0.5 kg-m/s D. 3,600 kg-m/s
An object with a mass of 120 kilograms is moving at a velocity of 60 m/s. Its momentum is 7,200 kg-m/s. 120 * 60 m/s = 7200
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Asked 6/17/2019 8:34:39 AM
Updated 7/14/2019 1:54:02 PM
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An object with a mass of 120 kilograms is moving at a velocity of 60 m/s. Its momentum is 7,200 kg-m/s.

120 * 60 m/s = 7200
Added 7/14/2019 1:54:02 PM
This answer has been confirmed as correct and helpful.
Confirmed by Sting [7/14/2019 2:02:40 PM]
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A machine is supplied energy at a rate of 4,000 W and does useful work at a rate of 3,760 W. What's the efficiency of the machine? A. 92 percent B. 97 percent C. 96 percent D. 94 percent
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A machine is supplied energy at a rate of 4,000 W and does useful work at a rate of 3,760 W. The efficiency of the machine is 94 % Efficiency =Output /Input =3760 /4000 *100 = 94 %
Added 77 days ago|5/17/2021 3:28:42 PM
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