Calculating Bubble Diameter at Surface: A Diver's Dilemma

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Homework Help Overview

The problem involves a diver exhaling a bubble at a depth of 38.8 meters in fresh water at 14°C, and seeks to determine the bubble's diameter as it reaches the surface where the temperature is 25°C. The context includes the application of the ideal gas law and the effects of pressure and temperature changes on the bubble's volume.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss calculating initial and final pressures at different depths and temperatures, referencing the ideal gas law. There are attempts to clarify the relationship between pressure, volume, and temperature, as well as how to accurately determine the initial pressure based on depth.

Discussion Status

There is ongoing exploration of the calculations involved, with participants sharing their findings and questioning assumptions about pressure changes with depth. Some have identified potential errors in their calculations and are working through the implications of these corrections. Multiple interpretations of the problem setup are being examined.

Contextual Notes

Participants note discrepancies in pressure calculations and the importance of unit conversions. There is also mention of a misunderstanding regarding the expected output (diameter vs. radius) and the impact of this on their results.

  • #31
I get the same answer.

The initial diameter is given in cm. What units is your program expecting the final answer to be in?
 
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  • #32
It doesn't matter as long as I put the corresponding units next too it. I figured out the problem even though he had posted he wanted the diameter of the bubble he really only wanted the radius. So our work was right just he was wrong. Thank you for all your help!
 
  • #33
You're welcome!

Boy, if I were you, I would be annoyed with the teacher right now!
 
  • #34
I know I am because this is like the third or fourth time it as happened! I have posted question after question on here thinking i am doing something wrong and then to find out it was an error on his part. It gets frustrating, but everyone makes mistakes.
 

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