The the earth's average temperature (in c) if the earth had no atmosphere? the emissivity of the surface is very close to 1. actual average temperature of the earth, about 15 °c, is higher than your calculation because of the greenhouse effect) express your answer to two significant figures and include the appropriate units. tvalue units submit provide feedback < return to assignment

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?