A6 cm object is 8 cm from a convex lens that has a focal length of 5 cm. the image is 4 cm from the lens . what's is the height of the image ?

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of

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=?