On october 21 2001 ian ashpole of the united kingdom

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Reference no: EM13633239

On October 21, 2001, Ian Ashpole of the United Kingdom achieved a record altitude of 3.35 km (11 000 ft) powered by 600 toy balloons filled with helium. Each filled balloon had a radius of about 0.45 m and an estimated mass of 0.35 kg.

(a) Estimate the total buoyant force on the 600 balloons.

(b) Estimate the net upward force on all 600 balloons.

Reference no: EM13633239

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