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Naya [18.7K]
3 years ago
11

What is the difference b/w cm,km,m,g.​

Physics
1 answer:
AlekseyPX3 years ago
4 0

stay home or i will eat u!

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What is the efficiency of a machine?​
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Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work).

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It is a measure of how well a machine reduces friction.

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An Amtrak going 250m/s comes to a stop in 12s. What is the<br> acceleration?
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