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Physics Properties Of Matter Level: High School

Solid

An empty rubber balloon has a mass of 0.0161 kg . The balloon is filled with helium at a density of 0.183 kg/m^3 . At this density the balloon has a radius of 0.527 m .

The acceleration of gravity is 9.8 m/s^2. and the density of air is 1.29 kg/m^3. If the filled balloon is fastened to a vertical line, What is the tension in the line ? Answer in units of N .