Water flows through a horizontal pipe. The diameter of the pipe at point Bis larger than the diameter of the pipe at point A. Where is the speed of the water the greatest? a. The speed of the water is the same at both points.
b. The speed of the water is the greatest at point A.
c. The speed of the water is the greatest at point B.
d. The speed of the water cannot be determined without additional information.

Which is not a step in the rock cycle?

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.

Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?