If the starting height of a sloped racetrack is increased, then the speed at which a toy car travels along the track will increase because the toy car will have a greater acceleration. Check all that apply. A. The “if” part of the hypothesis refers to changing the height of the racetrack.
B. The “then” part of the hypothesis refers to a measurable difference in speed.
C. The “because” portion of the hypothesis connects the ideas of speed and acceleration.

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.