A body mass 3kg and volume 0.0004 is hung from a balance graduated in Newton's. what is the reading of the balance when the body is fully immersed in water

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

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.

Why do astronauts in the space shuttle weigh less?