C. It is C because it really is loose covering.
Answer:
B. mechanical to electrical
Answer:
Explanation:
Because friction is always present, the actual mechanical advantage of a machine is always less than the ideal mechanical advantage.
Answer:
S.H.M:- If the acceleration of the vibrating body directly varies with the displacement of the body from the mean position and always directed to the mean position, the motion of that body is called simple harmonic motion.
Ex:- (i) The motion of a pendulum is an S.H.M.
(ii) The motion of vibrating mass attached to a spring is an S.H.M.
