A low-altitude meteorological research balloon, temperature sensor, and radio transmitter together weigh 3.1 lb. When inflated with helium, the ballon is spherical with a diameter size of 5.5 feet. The volume of the trasmitter can be neglected when compared to the ballon's size. The ballon is released from ground level and quickly reaches its terminal ascent velocity. Neglecting variations in the atmosphere's density, how long does it take the ballon to reach an altitude of 1000ft?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A low-altitude meteorological research balloon, temperature sensor, and radio transmitter together weigh 3.1 lb. When inflated with helium, the ballon is spherical with a diameter size of 5.5 feet. The volume of the trasmitter can be neglected when compared to the ballon's size. The ballon is released from ground level and quickly reaches its terminal ascent velocity. Neglecting variations in the atmosphere's density, how long does it take the ballon to reach an altitude of 1000ft?

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