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(a) At what rate is solar enegry radiate...

(a) At what rate is solar enegry radiated by the Sun ?
(b) How much of this solar energy does our country receive per year ?

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(a) `4.5 xx 10^23 kJ//s (i.e. 4.5 xx 10^23 kW)`
(b) 5000 trillion kWh.
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