Next, think of the situation where your block slides down the plane in dynamic equilibrium. Discuss how you could recreate this situation with a rough block, a motion sensor and your incline plane. What would your velocity vs. time data look like on Capstone? How would the angle where you reach dynamic equilibrium compare to the angle of maximum static friction?

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?