Why is a recovery period between bouts of exercise important?

select one:
a. recovery periods reduce muscle performance.
b. resting between workouts to prevent injuries.
c. recovery periods stimulate metabolism.
d. resting enhances muscle soreness and fatigue.

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.

Wiy doeres rere okhn a pump whon working betwon the same pressure range?