In one year, docters at the emergency room of a hospital treated 380 children for a bicycle accident. of these, 15 percent had a broken collarbone. how many children were treated for a broken collarbone?

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.