Calculate the efficiency of a compact fluorescent light bulb if it produces 30 J of light energy, while using 95 J of electrical energy. Show your equations.

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.