A super-bouncy-ball with a mass of 0.5 kg is thrown at a wall with a velocity of 5 m/s and it bounces back with a velocity of -5 m/s. A no-bounce-ball of the same mass is thrown at a wall at the same
velocity and does not bounce back at all. Which ball experiences a greater change in momentum?
O A the super-bouncy-ball
the no-bounce-ball
o they would have the same change in momentum

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.