Which of the following was the first government of the United States?

Ineed the answer to question 1 , i’m desperate

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

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?