A cube 5.4cm on each side is made of a metal alloy. After you drill a cylindrical hole 2.5cm in diameter all the way through and perpendicular to one face, you find that the cube weighs 7.25N .
Part A. What is the density of this metal? Express your answer using two significant figures.
Part B. What did the cube weigh before you drilled the hole in it? Express your answer using two significant figures.