According to the label, what is the estimated cost of running this air conditioner for 3,000hours if electrical energy costs 10 cents per kilowatt-hour? a.$40
b.$19
8c.$238
d.$300

A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.