What is the mass of a stone moving at a speed of
15 meters/second and having a momentum of
7.5 kilogram·meters/second?
a. 0.5 kilograms
b. 1.5 kilograms
c. 11 kilograms
d. 1.1*10² kilograms

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

In one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.

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?