To test your hydraulic skills, your Boss has requested you calculate the difference in water surface elevation between two reservoirs that are connected by three pipes in series. From upper to lower reservoir, the first pipe is 1000 meters long with a 200 mm diameter; the second pipe is 1,500 meters long with a diameter of 180 mm; and the third pipe is 2000 meters long with a diameter of 220 mm.

What is the momentum of a 2 kg object moving at 15 meters per second

The power exerted by a muscle is the product of the force exerted and the velocity of contraction. the area of which of these shaded regions represents the power exerted while a weight is lifted at maximum speed?

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=?