Sam is walking through the park he hears a police car siren moving on the street coming toward him what happens to the siren sound as it approaches and then passed sam

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.

Area around a charged object where the objects can exert a force on another charged objects is an electric

Acar is traveling 35 mph on a smooth surface . if a balanced force is applied to the car what happens?