Potential energy increases and an object's increases

Kinect Energy

Explanation: As an object falls its potential energy decreases, while its kinetic energy increases. The decrease in potential energy is exactly equal to the increase in kinetic energy. ... In doing so, you have increased the potential energy of the book (by increasing its potential to fall down to the floor).

answer: its c lololo

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.