287 reputation
49
bio website none,sorry.
location Maine
age 45
visits member for 3 years, 11 months
seen Jun 8 '11 at 21:11

I'm extroverted enough to look at other people's shoes.


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5
accepted What are good mechanics experiments for 10 year olds?
Nov
3
comment Law for tap water temperature
Issues/simplifications: We never calculated / worried about the Reynolds number, so we don't know if we have laminar or turbulent flow, we assume that tank of water is insulated from the tube and the water inside always remains at the initial temperature, and that the outside of the tube is at constant temperature over its length.
Nov
3
awarded  Student
Nov
3
answered A force's magnitude
Nov
3
asked What are good mechanics experiments for 10 year olds?
Nov
3
comment Law for tap water temperature
Aye, and the math there is a bit more hairy. By the way, nice job with the use of MathJax - I think you're missing a grouping in the e^{-\alpha x} term, though (or I've missed a step in the integration, which is possible/likely).
Nov
3
revised Law for tap water temperature
added 305 characters in body
Nov
3
comment Law for tap water temperature
Agree - this is the steady-state solution for classical heat exchanger problem. The original question implied that the temperature at the tap was changing over time, which it isn't. Or the question needs to be rephrased somewhat and both @Cedric and I are over-complicating the solution considerably.
Nov
3
comment Law for tap water temperature
Which water temperature? The tank, or the outlet water temperature?
Nov
3
answered Law for tap water temperature
Nov
3
revised How to show that the Coriolis effect is irrelevant for the whirl/vortex in the sink/bathtub?
Now using MathJax.
Nov
3
awarded  Editor