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How many degrees are there between the direction of motion and the force of friction?
A. O
B. 270
C. 90
D. 180
Answers: 3
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Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?
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How many degrees are there between the direction of motion and the force of friction?
A. O
B....
B....
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