A student pushes a golf ball down a frictionless hallway until the ball reached a speed of 2.5 meter per second. Which statement best describes the inertia of
the golf ball when the student stopped pushing the ball?
The ball accelerated
The ball continued to move in the same direction
The ball changed its speed
The ball changed direction and decelerated​

Protons and neutrons are found within the nucleus of an atom

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 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.