The volume of cylindrical can is 1.54 litre and height is 20 cm. find the area and its base

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

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.