a ball that has a mechanical energy of 65 j has 12 j of kinetic energy. the ball has j of potential energy.

Explanation:

Step1: Recall energy - conservation formula

Mechanical energy (E = K+U), where (E) is mechanical energy, (K) is kinetic energy, and (U) is potential energy.

Step2: Rearrange the formula to solve for potential energy

(U=E - K)

Step3: Substitute given values

Given (E = 65\ J) and (K = 12\ J), then (U=65 - 12) (U = 53\ J)

Answer:

53