An Olympian lifts a 1,375-kilogram set of weights a vertical distance of 2 meters in the weightlifting event. The force of gravity equals 9.8 m/s2 What is the potential energy of the weights?

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply