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

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

Answer 2

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

Step-by-step explanation:

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

`\Delta P = 1.05 * 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 * 10^5 = 1030 (9.81)h`

`h = (1.05 * 10^5)/(1030 * 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