What do all types of electromagnetic radiation have in common

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Asystem containing an ideal gas at a constant pressure of 1.22×10^5 pa gains 2140 j of heat. during the process, the internal energy of the system increases by 2320 j. what is the change in volume of the gas?

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?