A large helium filled balloon is used as the center piece for an advertising display. The balloon alone has a mass of 229 kg and it is filled with helium gas until its volume is 326 m3. Assume the density of air is 1.20 kg/m3 and the density of helium is 0.179 kg/m3. (a) Calculate the buoyant force (in N) acting on the balloon. (Enter the magnitude. Round your answer to at least three significant figures.) N (b) Find the net force (in N) on the balloon and determine whether the balloon will rise or fall after it is released.
