Every minute, 1 cm2 of the Earth' surface receives approximately 1.94 cal of energy from solar radiation (when the Sun' rays are perpendicular). Find the total energy received by the surface of the Earth; what portion is this of the total energy of light emitted by the Sun? Which planet receives from the Sun a greater energy, Earth or Jupiter? The distance from the Sun to the Earth is 1.5 X 108 km; the distance to Jupiter is 5.20 times as great as to the Earth; The radius of the Earth is 6.3 X 103km, and the radius of Jupiter is 11.14 times as large.
