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If a substance can be separated by physical or chemical means, it is
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A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?
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Within a pendulum, as potential energy decreases, energy increases. a. heat b. kinetic c. frictional d. gravitational
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Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.
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If a substance can be separated by physical or chemical means, it is...
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