Aprimary advantage of composite materials is: (choose all that apply). 1.) high strength 2.) low weight 3.) ease of construction 4.) corrosion resistance 5.) cheap construction costs

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

How does an observation about an object differ from an inference about that object

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?