For fully developed laminar pipe flow in a circular pipe, the velocity profile is u(r) = 2(1-r2 /r2 ) in m/s, where r is the inner radius of the pipe. assuming the pipe diameter is 4 cm, find the maximum and average velocities in the pipe as well as the volume flow rate

a)

b)

c) Q = 1.256 × 10⁻³ m³/s

Explanation:

Given:

The velocity profile as:

Now, the maximum velocity of the flow is obtained at the center of the pipe

i.e r = 0

thus,

or

Now,

or

or

Now, the flow rate is given as:

Q = Area of cross-section of pipe ×

or

Q =

or

Q =

or

Q = 1.256 × 10⁻³ m³/s

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this