Estimate the average power output of the Sun, given that about 1350 W/m2 reaches the upper atmosphere of the Earth. Express your answer with the appropriate units. S = nothing nothing

Explanation:

The intensity falling over a surface area is defined as Energy falling per unit area per unit volume, i.e,

I =

Also, Power, P = Energy/time

So, Intensity = Power/ Area

or, Power = Intensity × Area

Now, Distance from Sun to Earth , r = 149.6 × m

So, Surface area of the sphere of radius r will be:-

A = 4 π

  = 4 × 3.14 × (149.6 × )²

  =  2.81 × m²

Thus Average Power will be:

P = 1350 × 2.81 ×

 = 3.7935 ×

 = 3.8 × W