If 6 Chlorine atoms come out of a chemical reaction, how many must have entered into the reaction?

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot