Physics, 10.12.2019 05:31 verdolaga2017me
Abattery charges capacitor a until the potential difference between the two conductors of the capacitor is v.
a second, identical capacitor, labeled b, is charged by a different battery until the potential difference of capacitor b is 2v.
how does the stored energy of capacitor b compare to that of capacitor a?
Answers: 1
Physics, 22.06.2019 19:30
A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.
Answers: 1
Physics, 22.06.2019 20:00
Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?
Answers: 1
Abattery charges capacitor a until the potential difference between the two conductors of the capaci...
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