What will the motion of the cart be like when there is no force at all ? ( there is no friction in this model. )

As the distance from a magnet increases, what happens to the magnet force?

You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?

Use vsepr theory to predict the molecular geometry of the molecule hcn.