What is the density of a fluid whose pressure increases at the rate of 100 kPa for every 8.0 m of depth?

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.

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?