- #1
rudy
- 45
- 9
Hello,
I was solving a problem regarding pressure at different elevations. The question regarded water flowing through a pipe which travels up 5 meters.
I used Pascal's Law (p = p(initial) + rho*g*h : rho is density of fluid, g is gravity and h is the height) and came up with an answer slightly higher than the answer key.
The answer key used Bernoulli's equation (p + rho*g*h + 1/2rho*v^2) ad got an answer slightly lower than mine.
At first I thought the difference was just due to the textbook usually rounding more than I do, but did I actually choose the wrong equation? What situations would you know to apply one equation and not the other?
Thanks in advance,
-DR
I was solving a problem regarding pressure at different elevations. The question regarded water flowing through a pipe which travels up 5 meters.
I used Pascal's Law (p = p(initial) + rho*g*h : rho is density of fluid, g is gravity and h is the height) and came up with an answer slightly higher than the answer key.
The answer key used Bernoulli's equation (p + rho*g*h + 1/2rho*v^2) ad got an answer slightly lower than mine.
At first I thought the difference was just due to the textbook usually rounding more than I do, but did I actually choose the wrong equation? What situations would you know to apply one equation and not the other?
Thanks in advance,
-DR