## kirk.freedman 2 years ago Somebody please check my charts? Scuba divers must learn about pressure under water. At the water’s surface, air exerts 1 atmosphere (atm) of pressure. Under water, the pressure increases. h e pressure P (atm) varies with depth d (ft) according to the equation P=(d/33)+1. Boyle’s law states that the volume V of air varies inversely with the pressure P. If you hold your breath, the volume of air in your lungs increases as you ascend. If you have 4 qt of air in your lungs at a depth of 66 ft (P= 3 atm), the air will expand to 6 qt when you reach 33 ft, where P = 2 atm.

1. kirk.freedman

• Using the data in the example above, make a table and graph to show how the volume of air in your lungs varies with depth. • Make a table and graph to show how the volume of air in your lungs varies with pressure.

2. kirk.freedman

Depth Volume of Air in Lungs 0 ft 12 qt 33 ft 6 qt 66 ft 4 qt

3. kirk.freedman

Pressure Volume of Air in Lungs 1 atm 12 qt 2 atm 6 qt 3 atm 4 qt

4. kirk.freedman

@hero @campbell_st @tcarroll010 @Luis_Rivera @mathstudent55

5. kirk.freedman

@amistre64 @Callisto @Directrix @precal

6. kirk.freedman

Really.. nobody can help?

7. kirk.freedman

@TuringTest @robtobey @phi

8. kirk.freedman

@ghazi

9. ghazi

well your Pressure and volume relation seems okay , since because $P \alpha \frac{ 1 }{ V }$

10. ghazi

and as the relation says, with increase in depth , pressure increases hence volume should decrease so your, depth and volume relation seems correct :)

11. ghazi

by the way your name scared me because it sounds like freeman, the scientist , Freeman Dyson

12. ghazi

thats correct

13. kirk.freedman

Thanks for the help, greatly appreciated!