A model rocket accelerates at 15.3 m/s2 with a force of 44 N. Calculate the mass of the rocket. Round your answer to the nearest tenth of a kg.

The mass of the rocket is
kg.

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass

Matter that emits no light at any wavelength is called

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?