On Sep 23, 3:10*pm, The Natural Philosopher
wrote:
dennis@home wrote:

"tony sayer" wrote in message
...

JOOI where is this other energy wasted in heat or emissions or a combo
of both?..

Suppose I have say a 100 kW engine then 25 % of that is useful driving
the wheels energy, so where would or does the other 75 kW go to then
surely not all as heat?..

What else can it go to?

noise.

It might be sound for a bit but not long.


Noise ends up as heat too.