A 12.5-g bullet is fired into and embeds itself in a 2.47-kg block attached to a spring with a spring constant of 21.2 N/m and whose mass is negligible. How far is the spring compressed if the bullet has a speed of 270 m/s just before it strikes the block, and the block slides on a frictionless surface

number of electrons for neutral cl

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.