A spherical weather balloon is filled with hydrogen until itsradius is 3.00 m. I

Question

A spherical weather balloon is filled with hydrogen until itsradius is 3.00 m. Its totalmass including the instruments it carries is 12.0 kg. (a) Find the buoyant force acting on the balloon, assuming thedensity of air is 1.29 kg/m3.
N

(b) What is the net force acting on the balloon and its instrumentsafter the balloon is released from the ground?
N

(c) Why does the radius of the balloon tend to increase as it risesto higher altitude?
Because the external pressure ---Select---decreasesincreases with ---Select---decreasingincreasing altitude. (a) Find the buoyant force acting on the balloon, assuming thedensity of air is 1.29 kg/m3.
N

(b) What is the net force acting on the balloon and its instrumentsafter the balloon is released from the ground?
N

(c) Why does the radius of the balloon tend to increase as it risesto higher altitude?
Because the external pressure ---Select---decreasesincreases with ---Select---decreasingincreasing altitude.

Explanation / Answer

Formula : a) The buoyant force acting on the balloon            FB = air Vg     V = volume of ballloon b) The force acting on the ballon              F = FB   (When a body floats , the magnitudeof the buoyant force on the body is equal to gravitationalforce. c) Because the atmospheric pressure decreases as altitudeincreases.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.