Physics, 18.03.2021 16:20 joebossmc2184
The speci c heat of copper is about 0.4 joules/gramC. How much heat is needed to change the temperature of a 30-gram sample of copper from 20.0C to 60.0C? A. 1000 J B. 720 J C. 480 J D. 240
Answers: 1
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The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?
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It takes a lot of energy to get the temperature of water to increase and eventually boil because water has a high heat.
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When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(ii) sulfate is reduced to lead at the cathode and oxidized to solid lead(ii) oxide at the anode. suppose a current of is fed into a car battery for seconds. calculate the mass of lead deposited on the cathode of the battery.
Answers: 3
The speci c heat of copper is about 0.4 joules/gramC. How much heat is needed to change the temperat...
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