A lighter-than-air balloon and its load of passengers and
Chapter , Problem 103(choose chapter or problem)
A lighter-than-air balloon and its load of passengers and ballast are fl oating stationary above the earth. Ballast is weight (of negligible volume) that can be dropped overboard to make the balloon rise. The radius of this balloon is 6.25 m. Assuming a constant value of 1.29 kg/m3 for the density of air, determine how much weight must be dropped overboard to make the balloon rise 105 m in 15.0 s.
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