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21-10-2016
Physics

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1. Which of these is not a conservative force and does not have a form of potential energy connected with it? A. gravity B. electric attraction and repulsion C. friction D. magnetic attraction and repulsion 2. Which of these is true about kinetic energy but not necessarily true about potential energy? A. The kinetic energy of an object is never negative. B. Kinetic energy depends on position. C. Kinetic energy increases with height. D. Kinetic energy is a scalar.

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30-10-2016

Gravity is the only one that is not a conservative force and does not have a form of potential energy connected with it. The statement that is true about kinetic energy but not necessarily true about potential energy is that kinetic energy depends on position whereas potential energy does not.

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