The half-life of iodine-131 is 8.04 days. It’s decay constant equals

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.

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=?