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Alexander calder's mobiles are an example of motion because it uses forces of wind and water.
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Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.
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Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.
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If the side opposite angle a of a right triangle is 30 meters and the hypotenuse is 90 meters, what...
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