Time lapse video of filling and preparing the weather balloon. We use typically between 1200 and 1600 grams of hydrogen in the balloon, then tie on 80 feet of twine with a parachute. The computer or radiosonde goes on the very end right before releasing it into the sky. The parachute slows the descent of the sonde after the balloon bursts about 20 miles up. That balloon will be about as big as a small house by the time it reaches the top of the atmosphere. If you find a small package called a ra
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Time lapse video of filling and preparing the weather balloon. W…
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FacebookUS National Weather Service Elko NV
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A spherical weather balloon is filled with hydrogen until its radius is 3.00 m . Its total mass including the instruments it carries is 15.0 kg . (a) Find the buoyant force acting on the balloon, assuming the density of air is 1.29  kg / m^3. (b) What is the net force acting on the balloon and its instruments after the balloon is released from the ground? (c) Why does the radius of the balloon tend to increase as it rises to higher altitude? | Numerade
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