When a liquid freezes, an amount of thermal energy (Q = -m H1) must be removed from the liquid to turn it into a solid A. True
B. False

What is the fate of the electrons that interact with a specimen in an electron microscope?

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?

Which substance partical has negligible massand travels around outsidethe nucleus