Will give brainliest and 40 points!
what type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in an atom?

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.

Argon, neon, and xenon are examples of

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?