Answer these 1.what similarities do nuclear energy and chemical energy share? pick all that apply
a. both are types of kinetic energy. b. both are types of potential energy c. both involve magnetic energy d. both involve stored energy 3.the energy an object has due to its motion is called
a. potentional energy b. kinetic energy c. gravitational potential energy d. chemical energy.

magnitude and direction

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me