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Energy is produced by the sun by nuclear fusion reactions in which matter is converted into energy. We can gauge that the Sun produces energy at the rate of 3.80×1026 W.
1. How many tons of matter does the Sun lose each second?
2. If it kept losing energy at this rate, how long would it take the Sun to lose all its mass?
With what initial speed should a positive charge, +q, be given such that if starting infinitely far away from a fixed positively charged nuclues, +Q, of radius R, the positive charge is just able to get to the surface of the positive charge, done wit..
Air molecules in a warm room
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