What happens to an object as it absorbs radiant energy? a its temperature increases. b its temperature decreases. c its thermal energy decreases. d its potential energy increases.

A Its temperature increases.

Explanation:

When an objects absorbs radiant energy obviously its temperature would shoot up. It will increase up to the temperature of the incident radiation and after both that have achieved the same temperature that both are in thermal equilibrium then its temperature won't increase any further.  Now it won't absorb any further energy from the radiant energy. All other option are irrelevant in the context of this question.  

moving ball hits still ball. mover stops, hit ball moves. momentum transfer.

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees.