2. In this problem, you are going to see just how quickly the Sun uses up...

2. In this problem, you are going to see just how quickly the Sun uses up nuclear energy in its core. a. Four hydrogen atoms (total mass = 6.7x10-27 kg) fuse to produce one helium atom (mass 6.6x10-27 ). If one gm of hydrogen is burned in the Sun into helium, how much energy will be produced? b. The Sun has luminosity of 4x1026 Joules per second. It has mass of 2x1030kg. Three quarters of the Suns mass is hydrogen. Make a rough estimate of the maximum time the Sun could shine at its present luminosity by burning hydrogen into helium.

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genius_generous answered 1 year ago

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