10 miles per hour because 500 divided by 50 is 10
So that you can learn while being safe. Wearing goggles, for eye protection when dealing with chemicals
It's 1. Melting a substance. The rest are chemical changes
Answer:

Explanation:
The formula for the velocity of the ball is

1. Velocity at time of impact

2. Velocity on rebound
The ball has enough upward velocity to reach a height of 0.86 m.

3. Acceleration
