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Introductory Physics Homework Help
Archimedes' Principle and a weather balloon
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[QUOTE="a129, post: 5850552"] [h2]Homework Statement [/h2] [ATTACH=full]211898[/ATTACH] [B] 2. Homework Equations [/B] Buoyant force= mg(mass of fluid displaced = Vpg (volume of fluid displaced) Buoyant force=weight of object (if floating) [h2]The Attempt at a Solution[/h2] If the total mass is 99kg, then the total force acting downwards is 990N. It also said that the balloon "stops to move upwards after reaching a certain altitude" and from there I just assumed that it is floating, so upward force and weight are balanced. My answer is D, but I'm not sure if it's correct because why did they give the weight of meteorological instrument? [/QUOTE]
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Archimedes' Principle and a weather balloon
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