Answer:
80%
Explanation:
Thermal efficiency is a measure of the extent to which a heat engine is able to convert to other form. It is measure in percentage.
Thermal efficiency =
× 100%
Where
is the input energy and
is the output energy.
Given that:
= 2400 J and
= 3000 J, therefore:
Thermal efficiency =
× 100%
= 80%
The thermal efficiency of the engine is 80%.
A mirror only mists because the air is hot and the mirror is cold and if it is heated than the steam wont make the mirror become misty....
hope this helps :D
The answer would be false
They are called magnets poles.