Physics, 12.12.2019 04:31, ineedhelp2285
The core of the sun has a temperature of 1.5 × 107 k, while the surface of the sun has a temperature of 5930 k (which varies over the surface, with the sunspots being cooler). treat the core of the sun and the surface of the sun as two large reservoirs connected by the solar interior. nuclear fusion processes in the core produce 3.8 × 1026 j every second. assume that 100% of this energy is transferred from the core to the surface.
(a) calculate the change in the entropy as, in joules per kelvin, of the sun every second
Answers: 1
Physics, 22.06.2019 03:00, tylersabin72
1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of
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Physics, 22.06.2019 11:00, zhjzjzzj6325
Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?
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Physics, 22.06.2019 12:20, macycj8
A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.
Answers: 2
The core of the sun has a temperature of 1.5 × 107 k, while the surface of the sun has a temperature...
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