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Physics, 19.03.2020 19:18 abhibhambhani
How many helium-filled balloons would it take to lift a person? Assume the person has a mass of 80kg and that each helium-filled balloon is spherical with a diameter of 33 cm. ?
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How many helium-filled balloons would it take to lift a person? Assume the person has a mass of 80kg...
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