A solar panel installed on a spaceship has a maximum energy output of 5 kW near the Earth. What is the maximum energy output of the solar panel when the spaceship is near Mars? (The distance from the Earth to the Sun is 1 A.U. and from Mars to the Sun is 1.5 A.U.)
(a) 3.3 kW; (b) 2.2 kW; (c) 1.0 kW; (d) 0.55 kW; (e) 0.20 kW.