hw10_sol - 8(a The rate at which solar energy strikes the...

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8. (a) The rate at which solar energy strikes the panel is P = = 139 2 60 361 . . . kW / m m kW. 2 2 c hc h (b) The rate at which solar photons are absorbed by the panel is ( )( ) ( ) 3 34 8 9 ph 22 3.61 10 W 6.63 10 J s 2.998 10 m/s / 550 10 m 1.00 10 photons/s. P R E × = = × × × = × (c) The time in question is given by t N R A = = × × = 6 02 10 100 10 60 2 23 22 . . / . s s.
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