Select all of the following that are quadratic equations.. x2 - 2x = 4x + 1. x3 - 6x2 + 8 = 0. 5x - 3 = 0. 2x2+ 12x = 0. 5x - 1 = 3x + 8. 9x2 + 6x - 3 = 0

Which statements describe the relationship between science and society? check all that apply. science is influenced by the needs of society. science and society are independent. science seeks ways to meet the needs of society. scientists find new ways to address societal concerns. scientists improve existing products.

Could we see a galaxy that is 20 billion light-years away?

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?