Which of the following does not show an example of energy being transferred according to the work-energy theorem? a child pushing a toy car and making it move very fast
a baseball player hitting a baseball to the outfield
a soccer player kicking a soccer ball to a teammate
a driver pushing on a stalled car without moving it

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

Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.