I need help! this is about "Bill Nye Energy Video" i'm trying to find answer. there 3 picture. please note small answer arent great answer. please finish atleast 1 and half!

great answer = brainlist

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

What is similar between metals and suspensions