If a person visits an exercise facility, buys a new piece of fitness/sporting equipment, or just starts planning to be active, which of the five stages of change for physical
activity are they at?
Planning
Maintenance
Precontemplation
Contemplation

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation

The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.

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=?