What term is used to describe a perfect radiator and absorber of electromagnetic radiation?
a. blackbody
c. quantum
b. atom
d. photon

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

The substances that are necessary for producing of certain hormones and that store and transport vitamins

What is the weight of a 8-kg substance in n, kn, kg·m/s2, kgf, lbm·ft/s2, and lbf?