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Atrain travels 99 kilometers in 2 hours, and then 90 kilometers in 3 hours. what is its average speed?
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An uplifted block of rock between two normal faults
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In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
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A58-kg boy swings a baseball bat, which causes a 0.140-kg baseball to move toward third base with a velocity of 38.0 m/s.
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Atrain travels 99 kilometers in 2 hours, and then 90 kilometers in 3 hours. what is its average spee...
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