Which statement is TRUE? A)Energy can be created or destroyed.
B)Electrical energy is created from other forms of energy.
C)Energy in a battery makes new energy called electrical energy.
D)Stored energy in a battery can be transformed into electrical energy.

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.