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Tom [10]
3 years ago
13

A large helium filled balloon is used as the center piece for a graduation party. The balloon alone has a mass of 222 kg and it

is filled with helium gas until its volume is 328 m3. Assume the density of air is 1.20 kg/m3 and the density of helium is 0.179 kg/m3. Calculate the buoyant force acting on the balloon.
Physics
1 answer:
inn [45]3 years ago
4 0

Answer:

The buoyant force is 3778.8 N in upward.

Explanation:

Given that,

Mass of balloon = 222 Kg

Volume = 328 m³

Density of air = 1.20 kg/m³

Density of helium = 0.179 kg/m³

We need to calculate the buoyant force acting

Using formula of buoyant force

F_{b}=\rho_{air}\times V_{b}\times g

Where, \rho_{air} = density of air

V = Volume of balloon

g = acceleration due to gravity

Put the value into the formula

F_{b}=1.20\times321\times9.81

F_{b}=3778.8\ N

This buoyant force is in upward direction.

Hence, The buoyant force is 3778.8 N in upward.

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Flapping flight is very energy intensive. A wind tunnel test
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Answer:

The metabolic power for starting flight=134.8W/kg

Explanation:

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How long would it take a 4,560 watt motor to raise a 166 kg piano to an apartment window
IrinaK [193]

Answer:

Explanation:

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w = mg so

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Lúc 7g bạn an đi từ nhà đến trường với tóc độ trung bình là 20km/h . Bạn đến trường lúc 7g20. Tính khoảng cách từ nhà tới trường
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Answer:

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