Because noble gases has full of 8 electron in her external cell......
(89000/102000)×100
=87.25%
(92000/104000)×100
=88.46%
efficiency is (output/input)×100
if u get confused which way input and output should go, remember the smaller value is always output and it's above in the fraction, then only it's possible to get a efficiency lower than 100.
The same 500N, is the Newton’s Third Law.
I think the puck pushes the stick backwards
