1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zhenek [66]
2 years ago
12

A passive instrument performs which of the following tasks?

Engineering
1 answer:
tester [92]2 years ago
7 0
Q1/A:-Determine Vo if VR2> VRI , VD = 0.

You might be interested in
A fluid flows steadily through a pipe with a uniform cross sectional area. The density of the fluid decreases to half its initia
Vikentia [17]

Answer:

c. V2 equals V1

Explanation:

We can answer this question by using the continuity equation, which states that:

A_1 v_1 = A_2 v_2 (1)

where

A1 is the cross-sectional area in the first section of the pipe

A2 is the cross-sectional area in the second section of the pipe

v1 is the velocity of the fluid in the first section of the pipe

v2 is the velocity of the fluid in the second section of the pipe

In this problem, we are told that the pipe has a uniform cross sectional area, so:

A1 = A2

As a consequence, according to eq.(1), this means that

v1 = v2

so, the velocity of the fluid in the pipe does not change.

5 0
3 years ago
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
2 years ago
A 0.91 m diameter corrugated metal pipe culvert (n = 0.024) has a length of 90 m and a slope of 0.0067. The entrance has a squar
NikAS [45]

Answer:

HW=1.71m

Explanation:

Please kindly check attachment for the step by step solution of the given problem.

3 0
2 years ago
You are using a Geiger counter to measure the activity of a radioactive substance over the course of several minutes. If the rea
vovangra [49]

Answer: 33.35 minutes

Explanation:

A(t) = A(o) *(.5)^[t/(t1/2)]....equ1

Where

A(t) = geiger count after time t = 100

A(o) = initial geiger count = 400

(t1/2) = the half life of decay

t = time between geiger count = 66.7 minutes

Sub into equ 1

100=400(.5)^[66.7/(t1/2)

Equ becomes

.25= (.5)^[66.7/(t1/2)]

Take log of both sides

Log 0.25 = [66.7/(t1/2)] * log 0.5

66.7/(t1/2) = 2

(t1/2) = (66.7/2 ) = 33.35 minutes

3 0
3 years ago
one number is 11 more than another number. find the two number if three times the larger number exceeds four times the smaller n
vaieri [72.5K]

Answer:

a = 40

b = 29

Explanation:

Give a place holder for the numbers that we don't know.

Lets call the two numbers a and b.

From the given info, we can write an expression and solve it:

"one number is 11 more than another number"

a = 11 + b

from this, we know that a > b.

''three times the larger number exceeds four times the smaller number by 4"

3a = 4b + 4

Now we have 2 equations, we can use them to solve using whatever method you want.

a = 11 + b

3a = 4b + 4

I will be using matrices RREF to solve for this.

a - b = 11

3a - 4b = 4

\begin{bmatrix}1 & -1  & 11\\3 & -4 & 4 \end{bmatrix}

\begin{bmatrix}1 & 0  & 40\\0 & 1 & 29 \end{bmatrix}

a = 40

b = 29

6 0
3 years ago
Other questions:
  • A surveyor is trying to find the height of a hill . he/she takes a sight on the top of the hill and find that the angle of eleva
    12·1 answer
  • A Scalar can only be a positive quantity that has a magnitude but no direction ? a)-True b)-False
    5·1 answer
  • Talc and graphite are two of the lowest minerals on the hardness scale. They are also described by terms like greasy or soapy. B
    14·1 answer
  • If a barrel of oil weighs 1.5 kN, calculate the specific weight, density, and specific gravity of the oil. The barrel weighs 110
    7·1 answer
  • Nitrogen enters a steady-flow heat exchanger at 150 kPa, 10°C, and 100 m/s, and it receives heat as it flows through it. Nitroge
    15·1 answer
  • A wine aerator is a small, in-bottle, hand-held pour-through or decantor top device using the venturi effect for aerating the wi
    9·1 answer
  • Water at 20◦C is pumped through 1000 ft of 0.425 ft diameter pipe at a volumetric flowrate of 1 ft3/s through a cast iron pipe t
    14·1 answer
  • A 9 -slug mass hangs by a rope from the ceiling. Using the standard value of gravitational acceleration g = 32.2 fts 2, what is
    12·1 answer
  • A book sitting on a shelf is an example of ____________.
    6·2 answers
  • Not all projects that engineers work on will have human factors involved.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!