i have to come up with expression that governs the rate of solar energy incident upon the earth with radius of Earth, Re, power output of Sun 4*10^26 and distance from Earth to Sun as 1.5*10^11. But i have no idea how to get the expression HELP(adsbygoogle = window.adsbygoogle || []).push({});

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Solar energy equation

**Physics Forums | Science Articles, Homework Help, Discussion**