Imagine that you have a very elastic collision such that the only
energy lost is due to heat, sound and air resistance.
What will the effect on the amount of energy lost during the collision
be if the collision took place in a vacuum, rather than normal
atmospheric conditions? Of course, if you have a perfect vacuum, the
amount of energy lost due to air resistance would fall away, but what
about the portion of energy lost due to the production of sound in
normal atmospheric conditions?
Since sound waves cannot travel in a vacuum, is energy still lost to
the production of sound? Would the only energy lost in a near perfect
elastic collision taking place in a vacuum be due to heat production