Physics
22.02.2022 17:49
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Lucy needs to lift a crate to a shelf 20 m high. she does 12,000 j of work on a

Lucy needs to lift a crate to a shelf 20 m high. she does 12,000 j of work on a machine to her. the machine exerts a force of 500 n to lift the crate. what is the efficiency of the machine?
4.2%
24%
58%
83%
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hellothere69
hellothere69
5,0(17 marks)
The answer is below.............
Lucy needs to lift a crate to a shelf 20 m high. she does 12,000 j of work on a machine to  her. the
rodriguezangelinaado
rodriguezangelinaado
4,4(58 marks)

Miserable

Explanation:

Who wants to fail a test? No one

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