An object has an acceleration of 12.0 m/s/s. If the net force was tripled and the mass were halved, then the new acceleration would be m/s/s. already tried 27 and 18 which was what i kept getting

Consider two metallic rods mounted on insulated supports. one is neutral, the other positively charged. you bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand. show answer correct answer what would be resulting charge (if any) on the initially neutral rod

By what primary heat transfer mechanism does the sun warm the earth?

Which of these has some mechanical energy? a. an atom b. heat inside earth c. a book on a shelf d. the fire from a lit match