Acompressed spring in a toy is used to launch a 5.00-gram ball.
if the ball leaves the toy with an initial horizontal speed of 5.00 meters per second, the minimum amount of potential energy stored in the compressed spring was:

a) 0.0125 j
b) 0.0250 j
c) 0.0625 j
d) 0.125 j

c) 0.0625 J

Explanation:

How the mechanical energy is conserved, then ball’s kinetic energy is equal to stored energy in compressed spring.

Then:

         Where K: kinetic energy

                     : elastic potential energy

K = 0.0625 J

and

   = 0.0625

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

the answer is a. the yacht traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.

im doing peak rn so sry if its wrong