When a baseball player catches a baseball, the glove "gives" or moves backward. How does this movement affect the change in momentum of the baseball? The change in momentum increases because the impact time increases.
The change in momentum decreases because the force decreases.
The change in momentum stays the same because the ball still comes to a stop.
The change in momentum depends on the initial speed of the ball and the time to stop.

Modify the equation fδt=δ (mv) to find the force of friction.

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e