Yes; good absorbers are good radiators.
Why is this?
Because every substance must absorb heat before it can have heat to give off.
Do objects that absorb heat well, reflect it well?
No; objects that absorb heat well, cannot reflect it well.
Why is this?
Because a ray of heat cannot be reflected from an object, and be absorbed by that object, both at the same time.
Why is water rapidly heated in a tea-kettle?
Because the rough, dark iron of the tea-kettle absorbs the heat from the fire, and gives it off rapidly to the water contained in the kettle. The iron is also a good conductor of heat; therefore, the heat from the fire passes rapidly through it to the water.
Why does black cloth, when spread on the snow, cause the snow to melt more rapidly?