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When an atom that has no charge loses two electrons, it becomes a: a: positive ion. b: negative ion. c: positive isotope. d: negative isotope.
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Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen
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A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
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Physics, 22.06.2019 15:30
What is the increase in density of a medium due to wave travel?
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When an atom that has no charge loses two electrons, it becomes a: a: positive ion. b: negative io...
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