Physics, 28.06.2019 17:10, Epicgible8136
Fluid mechanics: a water tank is a cylinder 4 m in height and 2 meters in diameter. the tank is full at time to. the tank sits on a platform 12 m tall. a water tap is located at the bottom center of the tank. the tap, when actuated, opens to a pipe 5 cm in radius.
a. write down bernoulli’s equation. identify the pressure, kinetic and potential energy terms. show that each has the units of an energy density (joules/volume).
b. use bernoulli’s equation to compare the difference in pressure between the surface of the water and the bottom of the tank near the edge? assume the fluid is motionless near the edge.
c. when a tap is opened water rushes in to a pipe 5 cm in radius. the pipe is straight and drops 12 m to ground level, but along the way slowly in radius to 2 cm. what is the speed of the water as it emerges from the pipe?
d. use the continuity equation to find the speed of the water as it enters the pipe 12 m above, i. e. bottom of the tank.
e. what is the volume and mass flow rate of the stream of water?
f. what is the pressure of the fluid as it enters the pipe, again at the bottom of the tank.
Answers: 2
Physics, 22.06.2019 05:50, ladyty2109
Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b. refraction c. diffraction d. interference
Answers: 1
Physics, 23.06.2019 02:10, Nathaliasmiles
Find the steady-state temperature at the center of the plate = /2, = /2) for sums of w from n=1 to n=19 (only odd values). find the value of n for which the change in /2, /2) is less than 1% from the value at the previous n. at this point, we consider the solution converged. does the value of the temperature at the center seem reasonable? in this part, the values of x and y are constant scalar values. you should produce a plot of the value of n on the horizontal and the estimate of the temperature at the center of the plate on the vertical. b. using the value of n (or larger) that resulted in convergence in part (a), create a contourf plot of the temperature distribution across the entire plate. use enough spatial subdivisions to create a useful plot. comment on the results. hint: you need to determine what “x” and “y” values to use to make your t matrix. i recommend using a different number of x and y values. use enough x and y values so that the plot is “smooth”.
Answers: 1
Physics, 23.06.2019 10:00, thicklooney
The molecular weight of oxygen gas (o2) is 32 while that of hydrogen gas (h2) is 2. prove that under same physical conditions, the velocity of sound in hydrogen is four times that in oxygen
Answers: 1
Fluid mechanics: a water tank is a cylinder 4 m in height and 2 meters in diameter. the tank is ful...
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