A ball is dropped from a height of 1.20 m and hits the floor. The ball compresses and then reforms to spring upwards from the floor to a height of 0.86 m. The time from the ball's first contact to when it left contact with the floor was 0.091 s. Calculate the ball's acceleration while it is in contact with the floor.

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

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

i would say b

explanation:

but i think i would need more information than that