there are more correct choices on the list than incorrect ones.
the inverse square law applies to
-- the intensity of sound from a small source
-- the gravitational force
-- the intensity of light from a small source
-- the electric force from a point charge or a small charge.
it doesn't apply to the magnetic force.
position b is the path that the rock will follow.
in a normal, sane world, a paycheck normally is.
here is the answer calculate the area of the base (which is a circle) by using the equation πr² where r is the radius of the circle. then, multiply the area of the base by the height of the cylinder to find the volume.