The Kinetic energy is 345,600 J
=1/2^2
D,E,G is the correct answer
Energy can neither be created or destroyed but does however transform from one form to another
Ventricles need more, denser muscular tissue because they pump blood to either the whole body(aorta) or to lungs(pulmonary artery). Atria on the other hand pump blood straight to the ventricles so they do not need as much force and power to pump the blood.
Hope this helps:)
