an electron and a proton are initially very far apart. They are thenbrjought together to form a hydrogen atom, in which the electron orbits the proton at an average distance of 5.29x10^-11 m. What is the change in electric potential energy?

Which describe reflection? check all that apply. light bounces off a boundary.

Sara is creating an experiment. her hypothesis states the following. if i increase the air in my tires, then i will get better gas mileage. if this is her hypothesis what column titles do we need in our date table? a. air pressure in tire (psi) and gas mileage (mph) b. air pressure in the atmosphere (psi) and gas mileage (mph) c. miles (m) and gallons per mile (g) d. old battery and new battery

What is the mass of the same rock on the earth