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5 votes
Which of the following statements is true?

Energy input is always greater than energy output.

Magnetic fields are weakest at the poles of a magnet.

Magnetic fields can push and pull protons.

A change in acceleration is called velocity.

2 Answers

6 votes
D or A for sure!!!!1
User Mcgtrt
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7.8k points
6 votes
the answer would be #3
User Hans Kilian
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