The engine's efficiency is (35J)/125J) = 28% .
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The popularity of modern sports help advance a society by bringing people together.
It can help determine substances that appear similar but react differently under the same circumstances.
Answer:0.25 times
Explanation:
Given
Distance of satellite from earth surface=Radius of earth
Force on the satellite is F=mg'
where g'=acceleration due to gravity at that point
Distance from center of Earth=R+R=2R
Gravitational Force is given by

Force 
Force on earth surface 
Divide 1 and 2 we get

Is 3678.555667775 correct