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Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?
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If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false
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Anyone listen to nf???.?...
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