2. [-/5 Points] DETAILS SERCP11 9.5.OP.023. ASK YOUR TEACHER A researcher plans to release a weather balloon from ground

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2 5 Points Details Sercp11 9 5 Op 023 Ask Your Teacher A Researcher Plans To Release A Weather Balloon From Ground 1 (29.55 KiB) Viewed 23 times

2. [-/5 Points] DETAILS SERCP11 9.5.OP.023. ASK YOUR TEACHER A researcher plans to release a weather balloon from ground level, to be used for high-altitude atmospheric measurements. The balloon is spherical, with a radius of 2.10 m, and filled with helium. The total mass of the balloon (including the helium within it) and the instruments it carries is 26.0 kg. The density of air at ground level is 1.29 kg/m². (a) What is the magnitude of the buoyant force (in N) acting on the balloon, just after it is released from ground level? N (b) What is the magnitude of the net force (in N) acting on the balloon and its instruments, just after it is released from ground level? N MY NOTES (c) The researcher must be careful not to overinflate the balloon, because as the balloon rises, it radius tends to increase, which could cause the balloon to rupture. Why does the radius tend to increase as it rises to higher altitude? decreases with higher altitude. Less external pressure on the balloon creates a pressure imbalance, allowing its O Atmospheric pressure, external to the balloon, volume to expand. O Atmospheric pressure, external to the balloon, increases with higher altitude. More external pressure on the balloon creates a pressure imbalance, allowing its volume to expand. Atmospheric pressure does not change with higher altitude, but temperature decreases, causing the balloon to expand. Need Help? Road