The stream function for a two-dimensional, incompressible flow field is given by the equation ψ=2x-2y where the stream function has the units of ft2/s with x and y in feet
part a) the streamlines for this flow field and the direction of flow along the streamlines are
a) y=x+ψ2, the direction of frlow is up and to the left
b) y=-x+ψ2, the direction of frlow is up and to the right
c) y=-x+ψ2, the direction of frlow is down and to the right
d) y=x-ψ2 , the direction of frlow is down and to the left
part b) is this an irrotational flow field?
part c) determine the magnitude of the acceleration of a fluid particle at the point x = 1 ft, y = 2 ft.
|a(1 ft,2 ft)|=?

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

well, you would divide 135 by 33 to get your answer. then that is how many seconds it would take. boardman should fly about 132 m or 4.090909090909091 seconds.

close lines strong magnet less close weaker