Physics, 12.12.2019 07:31 Areyano8299
What is the efficiency of an engine that does 576 j of work and exhausts 144 j of heat while taking in 720 j of heat?
a. 80%
b. 10%
c. 25%
d. 20%
Answers: 1
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Write the equation for momentum, first using symbols for the variables, then using words for the variables.
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Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car
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Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.
Answers: 2
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