Consider an isolated system, by which we mean a system free of external forces. If the sum of the particle energies in the system increases by 147 joules, what must have been the change deltacapU in the system's potential energy?

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

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=?

Nthe 19th century, women were expected to conform to a certain role that entailed a. gaining domestic skills and establishing a career b. going to college and getting married c. getting married and having children d. graduating from college and being a housewife