1.

What is the force required (in Newtons) to hold a spherical balloon stationary in water at a depth of H from the air-water iterface? The balloon is of radius 0.1 m and is filled with air.

A. <img src="/_files/images/chemical-engineering/fluid-mechanics/60-784-1.png">
B. <img src="/_files/images/chemical-engineering/fluid-mechanics/60-784-2.png">
C. <img src="/_files/images/chemical-engineering/fluid-mechanics/60-784-3.png">
D. <img src="/_files/images/chemical-engineering/fluid-mechanics/60-784-4.png">
Answer» B. <img src="/_files/images/chemical-engineering/fluid-mechanics/60-784-2.png">


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