The sum of 2a and 3b:
2a + 3b
Answer:
SO you want me to figure out from year 2 or year4?
Step-by-step explanation:
The diffusion time of the red blood cell to take oxygen through the membrane is 25uS.
The small capillaries in the lungs are in close contact and it takes a red blood cell 0.5 seconds to squeeze through the capillary.
The diffusion time for the oxygen across the 1 um thick membrane separating the air is given by,
t = x²/2D
Where,
t is the diffusion time,
x is the thickness of the membrane,
D is the diffusion coefficient.
Putting values,
t = (1 x 10⁻⁹)²/2 x 2 x 10⁻¹¹
t = 10⁻⁷/4
t = 25 x 10⁻⁹ seconds.
t = 25 uS.
so, the diffusion time is 25uS.
To know more about Diffusion, visit,
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Answer: 9 students
Step-by-step explanation:
15+8+3=26
35-26= 9
Answer:
2.4
Step-by-step explanation:
5/12 * _ = 1
0.41666666666 x 2.4 = 1