Physics, 06.07.2019 20:00 timiaparker
When scientists state that energy transformation are inefficient, do they mean energy is destroyed? explain why.
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Physics, 22.06.2019 00:30
Order the sequence of ideas that lead to marie curies discovery of radioactive elements number the events in chronological order starting with the oldest
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Physics, 22.06.2019 09:00
What is a possible result of higher air temperature caused by global warming
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Physics, 22.06.2019 15:20
Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.
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Physics, 22.06.2019 20:30
Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600
Answers: 2
When scientists state that energy transformation are inefficient, do they mean energy is destroyed?...
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