At the top of a hill, a cart has Ug = 600 J and K = 400 J. It rolls down the hill to ground level. What's true on the ground?

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.

their crystal patterns have been disrupted by stress

this is poiselle's equation from fluid mechanic in physics. mech eng

f is prop to m1xm2 double m1 double force