
Concept explainers
At what depth below the water surface does the pressure increase to 3.0 atm?
A. 33 feet
B. 66 feet
C. 99 feet
D. 132 feet

Introduction:
The ambient pressure with which the diver is surrounded includes the atmospheric pressure and the hydrostatic pressure. Environments with high pressure have a considerable effect on the cardiopulmonary system of the body, such as experienced in scuba diving, hyperbaric medicine, and in deep sea diving. There is an increase in the levels of oxygen, while the blood pressure and heart rate are reduced, along with the heart output.
Answer to Problem 1RQ
Correct answer:
At 99 feet below the water surface, the pressure increases to 3 atm.
Explanation of Solution
Explanation for the correct answer:
Option (c) is given as 99 feet. The pressure inside water linearly increases with depth. This is because of the incompressible nature of water. The pressure increases by 1 atm for every 33 feet below the water surface. The total pressure at 66 feet below the water surface is 2 atm, 1atm contributed by water column and 1 atm by atmospheric pressure of the gases present above the water surface. The pressure becomes 3 atm when the depth is 99 feet. Hence, option (b) is a correct answer.
Explanation for the incorrect answers:
Option (a) is given as 33 feet. The pressure at 33 feet is 1 atm, contributed by water and the atmospheric pressure. At 66 feet depth below the water, the pressure becomes 3 atm. So, it is an incorrect answer.
Option (b) is given as 66 feet. The pressure at 66 feet is 2 atm as it increases by 1 atm for every 33 feet. The pressure gets increased to 3 atm when the depth below the water surface is 99 feet. So, it is an incorrect answer.
Option (d) is given as 132 feet. The pressure at 132 feet will be much higher. It will be 4 atm. The pressure increases by 1 atm for every 33 feet; at 132 feet the pressure will be 4 atm. So, it is an incorrect answer.
Hence, options (a), (c), and (d) are incorrect.
Hence, it can be concluded that at 66 feet below the water surface, the pressure would be 3 atm. The pressure increases by 1 atm when the depth below the water surface increases to 33 feet.
Want to see more full solutions like this?
Chapter 20 Solutions
Cardiopulmonary Anatomy & Physiology
- Plekhg5 functions in bottle cell formation, and Shroom3 functions in neural plate closure, yet the phenotype of injecting mRNA of each into the animal pole of a fertilized egg is very similar. What is the phenotype, and why is the phenotype so similar? Is the phenotype going to be that there is a disruption of the formation of the neural tube for both of these because bottle cell formation is necessary for the neural plate to fold in forming the neural tube and Shroom3 is further needed to close the neural plate? So since both Plekhg5 and Shroom3 are used in forming the neural tube, injecting the mRNA will just lead to neural tube deformity?arrow_forwardWhat are some medical issues or health trends that may have a direct link to the idea of keeping fat out of diets?arrow_forwardwhat did charles darwin do in sciencearrow_forward
- fa How many different gametes, f₂ phenotypes and f₂ genotypes can potentially be produced from individuals of the following genotypes? 1) AaBb i) AaBB 11) AABSC- AA Bb Cc Dd EE Cal bsm nortubaarrow_forwardC MasteringHealth MasteringNu × session.healthandnutrition-mastering.pearson.com/myct/itemView?assignment ProblemID=17396416&attemptNo=1&offset=prevarrow_forward10. Your instructor will give you 2 amino acids during the activity session (video 2-7. A. First color all the polar and non-polar covalent bonds in the R groups of your 2 amino acids using the same colors as in #7. Do not color the bonds in the backbone of each amino acid. B. Next, color where all the hydrogen bonds, hydrophobic interactions and ionic bonds could occur in the R group of each amino acid. Use the same colors as in #7. Do not color the bonds in the backbone of each amino acid. C. Position the two amino acids on the page below in an orientation where the two R groups could bond together. Once you are satisfied, staple or tape the amino acids in place and label the bond that you formed between the two R groups. - Polar covalent Bond - Red - Non polar Covalent boND- yellow - Ionic BonD - PINK Hydrogen Bonn - Purple Hydrophobic interaction-green O=C-N H I. H HO H =O CH2 C-C-N HICK H HO H CH2 OH H₂N C = Oarrow_forwardFind the dental formula and enter it in the following format: I3/3 C1/1 P4/4 M2/3 = 42 (this is not the correct number, just the correct format) Please be aware: the upper jaw is intact (all teeth are present). The bottom jaw/mandible is not intact. The front teeth should include 6 total rectangular teeth (3 on each side) and 2 total large triangular teeth (1 on each side).arrow_forward12. Calculate the area of a circle which has a radius of 1200 μm. Give your answer in mm² in scientific notation with the correct number of significant figures.arrow_forwardDescribe the image quality of the B.megaterium at 1000X before adding oil? What does adding oil do to the quality of the image?arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
- Cardiopulmonary Anatomy & PhysiologyBiologyISBN:9781337794909Author:Des Jardins, Terry.Publisher:Cengage Learning,Basic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:Cengage
- Essentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:Cengage
