Answer:

Explanation:
Using Laplace's law of surface tension:

where:
P = pressure
T = surface tension
r = radius
In the longer alveoli with radius of 0.07 mm =
; we have:
P = 
P = 
In the smaller alveoli with radius 0.05 mm =
; we have:
P = 
P = 
The pressure difference can now be calculate as follows:
Pressure difference = 
Pressure difference = 
Answer:
5.0g/cm^3
Explanation:
Since we have the mass of the wood (25.0g) and the volume of the wood (5.0cm^3), can use the formula for density to answer this question.
Density=mass/density
Density=25.0g/5.0cm^3
Density=5.0g/cm^3
Therefore, the density of the piece of wood is 5.0g/cm^3.
I hope this helps!
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Explanation:
Answer:
Greater. Inversely proportional
Explanation:
Answer:
the answer is a because cirrus clouds have that definition