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Mathematics 15 Online
OpenStudy (anonymous):

You measure the salt water in the tank to have a density of 1.02 g/mL. The balloon weighs 2.0 g and your weights have a mass of 30.0 g each. If you put 4 weights in your balloon, you must inflate the balloon to what diameter for it to have a density equal to the salt water, and therefore float in the middle of the tank? I got 1.56 but I want to know if I'm right. Also what would the unit be?

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