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bulgar [2K]
3 years ago
12

Why does a balloon filled with the air from your lungs sink to the ground but a balloon filled with Helium floats ?

Physics
1 answer:
hoa [83]3 years ago
4 0

Helium is lighter than air from the lungs.

Explanation:

A balloon filled with the air from lungs will sink to the ground but a balloon filled with Helium floats because helium is lighter than air.

Air is a mixture of many gases.

The air from the lungs is predominantly made up of carbon dioxide and water vapor.

  • Gram per mole of carbon dioxide is 44. Water vapor is 18.
  • Compared to helium which is 4, we see that the gas is lighter.
  • Since the gas is lighter, it will float in air.
  • The main component of air around us is nitrogen gas with a gram per mole of 28.
  • A balloon filled with more of air from the lungs weigh more than that will filled air around and even far more than helium gas.
  • This will cause a helium filled balloon to float.

learn more:

Density brainly.com/question/1698555

#learnwithBrainly

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How much power does it take to lift a 30.0 n box 10.0 m high in 5.00 s, if you must apply a 62n force to lift the box?
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Power is defined as the rate at which the body is doing work:
P=\frac{W}{t}
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W=F\cdot h
We know that we need 62N to move the box, so when we apply this force along the path of 10m we have done:
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A body weighing 108N moves with speed of 5m/s in a horizontal
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Answer:

i) 5 m/s^{2}  ii) 54 N  iii) 54 N

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i) a = \frac{v^{2}}{r} ⇒ a = 5² ÷ 5 = 5 m/s^{2}

ii) m = \frac{W}{g} ⇒ m = 108 ÷ 10 = 10.8 kg , F = ma ⇒ F = 10.8 × 5 = 54 N

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A Red Rider bb gun uses the energy in a compressed spring to provide the kinetic energy for propelling a small pellet of mass 0.
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Answer:

a.6.5025 J

b.6.5025 J

Explanation:

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Spring constant,k=1800 N/m

x=8.5 cm=8.5\times 10^{-2} m

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P.E of spring=K.E of the pellet

K.E of the pellet=6.5025 J

6 0
3 years ago
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