A 0.5 kg rubber ball is dropped from 1 meter and is observed with a high-speed camera. After colliding with the ground, the ball's speed is 4.40 m/saway from the ground right after the collision. What was the change in momentum on the ball? PLEASEEE HELP!!

compass can be used day and night, cloudy or sunny

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.