The following statements are about mechanics and properties of matter. Select the correct statements from these options.

A. To find power from energy we would simply multiply the energy by the time taken.
B. Newtons second law of motion suggests that a change in acceleration is proportional to a change in the unbalanced force.
C. Newtons first law of motion sets out what is required for there to be a change in an objects velocity in that an external unbalanced force causes a change in velocity.
D. Impulse is classified as a change in momentum divided by the time taken
E. The pressure of a gas at constant temperature is inversely proportional to its volume
F. Newtons third law suggests that if a force is applied to one object by another then the other applies exactly the same force to the first object regardless of the motion of the tied objects. So they could be in uniform acceleration, constant velocity of stationary.
G. To decide if an immersed object would float sink or remain stationary all we would need to know is the weight of water displaced
H. Newtons second law of motion suggests that a change in acceleration is proportional to a change in mass