a block slides down a frictionless incline that terminates in a 45° ramp, as shown below. find an expression for the horizontal range x shown in the figure as a function of heights h_1 and h_2

The slope of a velocity time graph over any interval of time gives the during that interval

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

The radius of a sphere is increasing at a rate of 9 cm/ sec. find the radius of the sphere when the volume and the radius of the sphere are increasing at the same numerical rate.