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Q4: A 1-N apple falls to the ground.
Q13: Compressions and rarefactions normally travel in<br>A) opposite
Q19: A ball is thrown upwards and returns
Q20: An object is propelled along a straight-line
Q28: The Earth's gravitational field extends<br>A) only above
Q37: A 5000-kg freight car having a kinetic
Q71: If gold were used as nuclear fuel,
Q74: Atoms of neon in a glass tube
Q79: An object at rest may also have<br>A)
Q82: A ball is projected into the air