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Predict/Calculate A backpack full of books weighing 52.0 N rests on a table in a physics laboratory classroom A spring with a force constant of 150 N/m is attached to the backpack and pulled horizontally, as indicated in Figure 6-37. (a) If the spring is pulled until it stretches 2.00 cm and the pack remains at rest, what is the
Figure 6-37
Problem 18
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