1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Solar energy equation

  1. Feb 8, 2012 #1
    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
  2. jcsd
  3. Feb 8, 2012 #2
    The energy from the Sun is passing through the surface of a sphere of radius R, where R is the distance FROM the SUN.
    If you know how to calculate the surface area of a sphere then you should be able to calculate the power per square metre at the Earth's distance from the Sun.
    Hope this helps
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Solar energy equation
  1. Energy/Solar Energy (Replies: 3)