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3 years ago

Please read and answer each question carefully.

Engineering

1 answer:

Klio2033 [76]3 years ago

5 0

the answer is (c)

After the vehicle is involved in a car accident or fire

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For Laminar flow conditions, what size pipe will deliver 90 gpm of medium oil at 40°F (υ = 6.55 * 10^‐5)?

MrRissso [65]

Answer:

1.693 feet

Explanation:

We have given Q = 90 gpm

We know that 1 cubic feet per second = 443.833 gpm

So 90 gpm will be equal to $\frac{90}{443.833}=0.202\frac{ft^3}{sec}$

Let d is the diameter of the pipe then $V_{avg}=\frac{Q}{A}=\frac{0.2}{\frac{\pi }{4}d^2}=\frac{0.255}{d^2}$

We know that for pipe flow critical Reynolds number =2300

So $\frac{V_{avg}d}{\nu }=2300$

Value of $\nu$ is $6.55\times 10^{-5}$ given in question

So $\frac{0.255\times d}{d^2\times 6.5\times 10^{-5}}=2300$

d=1.693 feet

3 0

3 years ago

Question 5

likoan [24]

Answer:

worth of being noticed

Explanation:

i had this in iready it’s correct trust me

8 0

3 years ago

Read 2 more answers

In C++ the declaration of floating point variables starts with the type name float or double, followed by the name of the variab

Aliun [14]

Answer:

The given grammar is :

S = T V ;

V = C X

X = , V | ε

T = float | double

C = z | w

Nullable variables are the variables which generate ε ( epsilon ) after one or more steps.

From the given grammar,

Nullable variable is X as it generates ε ( epsilon ) in the production rule : X -> ε.

No other variables generate variable X or ε.

So, only variable X is nullable.

First of nullable variable X is First (X ) = , and ε (epsilon).

L.H.S.

The first of other varibles are :

First (S) = {float, double }

First (T) = {float, double }

First (V) = {z, w}

First (C) = {z, w}

R.H.S.

First (T V ; ) = {float, double }

First ( C X ) = {z, w}

First (, V) = ,

First ( ε ) = ε

First (float) = float

First (double) = double

First (z) = z

First (w) = w

Explanation:

7 0

3 years ago

An AX ceramic compound has the rock salt crystal structure. If the radii of the A and X ions are 0.137 and 0.241 nm, respectivel

Tju [1.3M]

Answer:

c) 1.75 g/cm³

Explanation:

Given that

Radii of the A ion, r(c) = 0.137 nm

Radii of the X ion, r(a) = 0.241 nm

Atomic weight of the A ion, A(c) = 22.7 g/mol

Atomic weight of the X ion, A(a) = 91.4 g/mol

Avogadro's number, N = 6.02*10^23 per mol

Solution is attached below

3 0

3 years ago

Your driver license will be _____ if you race another driver on a public road, commit a felony using a motor vehicle, or are fou

Georgia [21]

Hello there,

In the problems given in the question, the driver's license is confiscated and suspended.

So our answer is: A)

Achievements.

6 0

4 years ago

Read 2 more answers