3. The figure shows a cube resting on top of a table. If the table rotates and moves
the cube in a counterclockwise circle at a
constant speed, describe the direction of
the acceleration experienced by the cube.
A. Outward, away from the center of the
table
B. Inward, toward the center of the table
C. Forward, tangent to its circular path
D. No acceleration, since speed is
constants

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?