Answers Physical Science PretestQuestion 2

2

lesson pretestMultiple Choice

Pretest

Question 2 • Physical Science

Carlota does 2000 cap j of work on a machine. The machine does 500 cap j of work. What is the efficiency of the machine?

Answer

A

4 percent

B

400 percent

C

25 percent

D

75 percent

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10 verified answers

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Carlota does 2000 cap j of work on a machine…