Once potential energy has been converted into kinetic energy, one of two things can happen. The kinetic energy may be and made useful, or it may be

Yes.

Explanation:

Energy can always be transformed from one form to another form.

E.g. Throw a ball in upward direction ,so it will have some kinetic energy due to its mass and velocity. At some height ball will stop and will start coming down.

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles