Identify two ways of changing the strength of an electric force

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.

The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?