Atennis ball with a speed of 27.7 m/s is
moving perpendicular to a wall. after striking
the wall, the ball rebounds in the opposite
direction with a speed of 19.7224 m/s.
if the ball is in contact with the wall for
0.0146 s, what is the average acceleration of
the ball while it is in contact with the wall?
take “toward the wall” to be the positive
direction.
answer in units of m/s
2
.

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

Answer as quick as ! kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energyb. motion energyc. sound energyd. thermal energy

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.