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Simple machines can a. increase force only b. decrease force only c. increase or decrease force
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If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.
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Most short-period comets do not have randomly oriented orbits because
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