WILL GIVE BRAINIEST! Which of the following correctly defines mechanical energy?

1 energy produced by machines
2 the energy due to the motion or position of objects on a macroscopic scale
3 the difference between kinetic and potential energy of objects
4 the sum of chemical and kinetic energy of objects

Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?

Astep up transformer has 250 turns on its primary and 500 turns on it secondary. when the primary is connected to a 200 v and the secondary is connected to a floodlight that draws 5a, what is the power output? show all of your work.