Question

The difference in pressure between the atmosphere and the human lungs is 1.05x105 Pa. What is the longest straw you could use to draw up milk whose density is 1030 kg/m3?

Answer 1

Answer:

it can use maximum 10.39 m long straw to draw up the milk of given density

Explanation:

As we know that the difference of pressure in human lungs and atmospheric pressure is given as

$\Delta P = 1.05 \times 10^5 Pa$

now we know that when we use straw to drink milk then this pressure difference will help to put the milk upwards

$\Delta P = \rho g h$

$1.05 \times 10^5 = 1030 (9.81)h$

$h = \frac{1.05 \times 10^5}{1030 \times 9.81}$

[tex]h = 10.39 m[/tex[

so it can use maximum 10.39 m long straw to draw up the milk of given density

Answer 2

The answer to your question is the third option "1.079 kg/m3 hope this helps