The Mars planet has a diameter of 6780 km and its distance from the Sun is 228 million kilometer. Venus diamater is 1.78 times bigger than Mars diamater but 115 times smaller than the Sun diameter. The Venus distance from the sun is 108 million kilometer. Temperature at the surface of the sun is 5778 K.
a) How much bigger or smaller solar energy we can generate in Venus, compared to Mars?
b) We put a solar panel on the surface of the Mars that has the surface dimensions of 8 m length and 7 meter width. If the efficiency of the solar panel is 15%, how much solar energy we can get from this panel?
(Stefan-Boltzmann constant to be 5.67 10-8 W/m^2*K^4. Also igonre solar attenuation in the atmosphere of both planets.