A 0.023kg acorn hangs from a branch 14m above the ground, what is the potential energy of the acorn? J

If the acorn falls to the ground with a speed of 16.57m/s, how much kinetic energy does it have?
J

With i really need the correct answer!

Which atomic model was proposed as a result of j. j. thomson’s work?

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system