a 20.5 kg ball moving at 38.5 m/s on a horizontal, frictionless surface runs into a light spring of force
constant 5.15 n/cm. use the work-energy theorem to find the maximum compression (in m) of the spring.

7.68 m

Explanation:

Kinetic energy in ball = elastic energy in spring

KE = EE

½ mv² = ½ kx²

mv² = kx²

x = v √(m / k)

x = (38.5 m/s) √(20.5 kg / 515 N/m)

x = 7.68 m

this is a good question! i'll do some research and come back when i have the answer!

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.