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A large balloon of mass 222 kg is filled with helium gas until its volume is 335 m3. Assume the density of air is 1.29 kg/m3 and the density of helium is 0.179 kg/m3.
(a) Draw a force diagram for the balloon. (Do this on paper. Your instructor may ask you to turn in this work.)
(b) Calculate the buoyant force acting on the balloon.
N
(c) Find the net force on the balloon and determine whether the balloon will rise or fall after it is released.
(d) What maximum additional mass can the balloon support in equilibrium?
kg
A 46-N lithograph is supported by two wires. One wire makes a 27° angle with the vertical and the other makes a 12° angle with the vertical. Find the tension in each wire
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