Which situations describe an elastic collison?

Sarah is sitting at the top of the slide in the schools playground. which will increase sarah’s kinetic energy a- an additional child is added to the top of the slide. b- sarah is pushed and moves down the slide. c- sarah climbs down the ladder and off the slide. d- the ladder is moved to the other side of the yard.

Match the types of competition to their descriptions

Which statements best describe the atoms of the gas neon? check all that apply