Homework Help: physics

Posted by Anonymous on Saturday, April 16, 2011 at 2:55pm.

A child loses his balloon, which rises slowly into the sky. If the balloon is 17 cm in diameter when the child loses it, what is its diameter at the following altitudes? Assume that the balloon is very flexible and so surface tension can be neglected.
(a) 1100 m

(b) 1900 m

(c) 5000 m

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