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An atom or group of atoms that have an electric charge is called an
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A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?
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The height of the empire state building is 318 m if a stone is dropped from the top of the building what is the stones velocity just before it strikes the ground
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Physics, 23.06.2019 13:00
Freya has a mass of 14kg she is running at 1.1m/s to the left when she runs into eric, who is standing still. eric has a mass of 18kg. after the collision, they continue moving together. what is their velocity after the collision. a. 0.48 m/s to the leftb. 2.5 m/s to the leftc. 0.86 m/s to the leftd. 1.4 m/s to the left
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An atom or group of atoms that have an electric charge is called an...
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