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Q. In a physics lab, a cube slides down a frictionless incline and elastically strikes another cube at the bottom that is only 1/4 its mass. If the incline is 35 high and the table is 95 off the floor, where does each cube land? [Hint: Both leave the incline moving horizontally.]

Q. Calculate the force of gravity between a human adult (mass = 70 kg) and the planet Mars (mass = 6.4 1023 kg), when Mars is at its closest to Earth (distance = 8. 1010 m)

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