The calculated load for a three-phase, 240-volt load is 196 amps. The installation consists of three single insulated conductors in electrical metallic tubing, Type EMT. What size RHW copper conductors are needed?

True or false: the revolution of the earth creates day and night as it rotates around the sun

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •