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3 years ago

What is this thing on my boat?

Engineering

1 answer:

MaRussiya [10]3 years ago

5 0

It may be an engine cooler, or it may be for the boats speed

But I think it is for cooling the engine down

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Turpentine flows through a 12-nominal schedule 40 pipe. What is the flow rate that corresponds to a Reynolds number of 2000?

r-ruslan [8.4K]

Answer:

flow rate is 8.0385 × $x^{-4}$ m³/s or 12.741 gpm

Explanation:

given data

12-nominal schedule 40 pipe

Reynolds number = 2000

to find out

What is the flow rate

solution

we know the diameter of 12-nominal schedule 40 pipe is

Diameter = 12.75 inch

D = 0.32385 m

and

dynamic viscosity of Turpentine is = 0.001375 Pa-s

and Density of Turpentine is 870 kg/m³

Reynolds number is express as

Re = $\frac{\rho*V*D}{\mu}$

here ρ is density and D is diameter and V is velocity and µ is viscosity

so put here all value

2000 = $\frac{870*V*0.3238}{0.001375}$

V = 9.7619 × $x^{-3}$ m/s

and

flow rate is

Q = V × A

here A is area and Q is flow rate

Q = 9.7619 × $x^{-3}$ × $\frac{\pi }{4} * 0.3238^2$

Q = 8.0385 × $x^{-4}$ m³/s

so flow rate is 8.0385 × $x^{-4}$ m³/s or 12.741 gpm

4 0

4 years ago

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

trasher [3.6K]

Answer:

The publication of a parody for commercial gain does not fall within the protection afforded by Section 107, as it is used for commercial gain.

Explanation:

<h2><u><em>PLEASE MARK AS BRAINLIEST!!!!!</em></u></h2>

4 0

3 years ago

For a metal casting with a cylindrical riser, what is the best (optimal) aspect ratio (aspect ratio is the ratio of the riser's

DochEvi [55]

Answer:

Optimal aspect ratio = 1

Explanation:

From Chvorinov's Rule,

$T = c [\frac{volume}{surface are}]^n$

Where

T = solidification time

c = mold constant

$Volume = \frac{pi D^2 h}{4}$

$Surface areaA= pi Dh[\frac{2pi D^2}{4}$

For the riser to have the longest solidification time:

We have: D = h

$V = \frac{pi D^3}{4}$

$A = pi Dh[\frac{2pi D^2}{4}] = 1.5D^2 pi$

Therefore,

$\frac{V}{A} = \frac{\frac{pi D^3}{4}}{1.5D^2 pi}$

$\frac{V}{A} = \frac{D}{6}$

To have to longest solidification time, D = h

Therefore the best aspect ratio would be,

$\frac{D}{h} = 1$

3 0

3 years ago

Which sentence highlights the best way of site planning?

Nadusha1986 [10]

Answer:

Which sentence highlights the best way of site planning?

A group of construction planners are in a discussion over the most suitable plot to construct new buildings. Steven suggests that they should choose the barren stretch of land in the city and construct cluster buildings. James points out that the wetlands will provide them more area for construction. Riley advises that they should not worry about keeping large open spaces while planning building construction.

Explanation:

8 0

3 years ago

Why do side airbags say inflated for several seconds

Pavlova-9 [17]

Answer:

When the airbag is activated, the chemicals produce heated nitrogen gas, which inflates the nylon bag....

hope my answer help u!!!!

7 0

4 years ago

Read 2 more answers