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The energy received from the sum by eart...

The energy received from the sum by earth and its surrounding atmosphere is 2 `"cals"//cm^(2)//"min"` on a surface normal to the rays of sun.
(a) What is the total energy received in joules by earth and its atmosphere.
(b) What is the total energy radiated in J/m by sun to the universe? Distance of sun to earth is `.149xx10^(8)` km.
(c) At what rate in mega-grams per minute must hydrogen be consumed in the fusion reaction to provide the sun with the energy it radiate?
Take mass of hydrogen atom-1.008145amu.
Take mass of He atom=4.003874 amu.

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