the sun radiates energy into space at the rate of 3.9x10^-26 joules per sec. How many joules are emitted in 3 weeks

Sagot :

[tex]60*60*24*7*3*3.9*10^{-26}\\7,076,160*10^{-26}\\0.0000000000000000000707616\\7.07616*10^{-20}[/tex]

7.07616 * 10^(-20) joules