You can tell when the energy carried by a wave increases by looking for a increase in its

Which one of the following research methods can show cause and effect

See the attachment and solve question 5th

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.