How many years will it take to reach the nearest galaxy to us if we travel at 0.01 the speed of light, knowing that its distance from us is approximately 2 million light years ??​

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.