Work done = force x distance = 40 x 2 = 80 Joules.
<span>An example of a high energy electromagnetic wave is "X-Ray"
When car runs, it's chemical energy (gasoline) converts into mechanical energy
Temperature is the measure of hotness or coldness of the body, so when heat expose to a substance, it's degree of hotness increases & it's temperature increases
Hope this helps!
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Since both hv same mass and elsstic collision, so their velocity will exchange. Bob A will stop and bob B will move with speed of A just before the collision.
Speed will be = squreroot ( 2*g*L)
L is length of pendulum
Magnitude of displacement = 
Adding the squares gives displacement = 
Displacement = ≈ 724.7m
A wind turbine turns wind energy into electricity using the aerodynamic force
