Water is flowing steadily through a 3-m long, 20 mm innerdiameter cast iron pipe. The water enters at a uniform velocity U and exits with a velocity profile that is a function of radial position within the pipe, U (r ). The inlet flow velocity U is 5 m/s and the outlet flow velocity is

Answers

Answer 1

Answer:

Hello your question is incomplete attached below is the complete question

answer :

U/r = R  = [tex]U_{max}[/tex] [ 1 - [tex](\frac{R}{R} )^2[/tex] ] = 0

∴ No slip condition is satisfied

Explanation:

Given that

Outlet velocity  U(r)  = [tex]U_{max}[/tex] [ 1 - [tex](\frac{r}{R} )^2[/tex] ]

prove that the output velocity profile satisfies the no slip condition

at no slip u = 0 ( i.e. at the pipe's inner surface )

at , r = R  ( inference  is at center )

hence  U/r = R  = [tex]U_{max}[/tex] [ 1 - [tex](\frac{R}{R} )^2[/tex] ] = 0

∴ No slip condition is satisfied

Water Is Flowing Steadily Through A 3-m Long, 20 Mm Innerdiameter Cast Iron Pipe. The Water Enters At

Related Questions

Can be used to eliminate rubbing friction of wheel touching frame. 1.Traction 2.Thrust washer

Answers

Answer:

thrust washer

can be used to eliminate rubbing friction of wheel touching frame

Technician A says that ultra-high-strength steels (UHSS) are generally defined as those steels with tensile strengths greater than 700 MPa.
Technician B says that advanced high-strength steels (AHSS) are generally defined as those steels with tensile strengths from 375 MPa up to 1700
Who is right?
O A only
OB only
O Both A and B
O Neither A norb
Table of Contents

Answers

b only i think i’m not fully sure.

IF YOUR DRIVING PRIVILEGE HAS BEEN REVOKED, YOU MAY:

A. Drive only in an emergency

B. Still drive to and from work or school

C. Not drive in this state with any license or permit

D. Drive only in the presence of a licensed parent or guardian


HELP ME !!

Answers

Answer:

correct me if im wrong but A. drive only in an emergency

If your driving privilege has been revoked, you may not drive in this state with any license or permit. Thus, the correct option is C.

What is Driving privilege?

The Driving privilege may be characterized as the bounty of authority by a jurisdiction to a person that permits a specific person is able to drive a vehicle on highways within that jurisdiction. It is offered to the individual who wants to drive the vehicle, but not the vehicle.

Once the driving privilege of any individual has been revoked, he/she now does not have the authority or jurisdiction to drive any form of vehicle officially in any terms or circumstances. This represents your sincerity and activeness in front of others.

Therefore, if your driving privilege has been revoked, you may not drive in this state with any license or permit. Thus, the correct option is C.

To learn more about Driving privilege, refer to the link:

https://brainly.com/question/12361344

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8. Which of these plastics is a themoplastic - melts or softens with heat.
Acrylic
Bakelite
Polyester resin
Melamine
Epoxy Resin

Could someone please help me, this is very urgent, I will pay an extra bonus if done correct.

Answers

Answer:

Acryclic

Explanation:

Hope it helps you!

which of the following is not arithmetic operations​

Answers

Explanation:

The basic arithmetic operations are addition, subtraction, multiplication, and division. There are more arithmetic operators like exponentiation, modulus operations, increment, decrement, etc. * - Multiplication operator. So, And operator is not an arithmetic operator.

There are gauges available for checking panel flushness. TRUE OR FALSE?

Answers

Answer: true

Explanation:

because flushness means your dead   so you are dead now

There are gauges available for checking panel flushness. to allow for front-to-back movement. to allow for side-to-side movement. for height adjustments. So yes it is true. Hope this helps!

Hot engine oil with heat capacity rate of 4440 w/k (product of mass flow rate and specific heat) and an inlet temperature of 150°c flows through a double pipe heat exchanger. the double pipe heat exchanger is constructed of a 1.5-m-long copper pipe (k = 250 w/m·k) with an inner tube of inside diameter 2 cm and outside tube diameter of 2.25 cm. the inner diameter of the outer tube of the double pipe heat exchanger is 6 cm. oil flowing at a rate of 2 kg/s through inner tube exits the heat exchanger at a temperature of 50°c. the cold fluid, i. e., water enters the heat exchanger at 20°c and exits at 70°c. assuming the fouling factor on the oil side and water side to be 0.00015 m2 ·k/w and 0.0001 m2 ·k/w, respectively, determine the overall heat transfer coefficient on inner and outer surface of the copper tube.

Answers

Explanation:

fluid, i. e., water enters the heat exchanger at 20°c and exits at 70°c. assuming the fouling factor on the oil side and water side to be 0.00015 m2 ·k/w and 0.0001 m2 ·k/w, respectively, determine the overall heat transfer coefficient on inner and outer surface of the copper tube.xgjicbb .follow me

The IRT has a vital responsibility in gathering forensic evidence, which is defined as collecting and preserving the information that can be used to reconstruct events.

a. True
b. False

Answers

The answer would be true

A jet aircraft is in level flight at an altitude of 30,000 ft with an airspeed of 500 ft/s. The aircraft has a gross weight of 19,815 lb, a wingspan of 53.3 ft, and an average chord length of 6 ft. The Oswald efficiency factor is 0.81 and the zero-lift drag coefficient is equal to 0.02. The jet has two turbofan engines, each producing a maximum thrust of 3,650 lb at sea level.

Required:
a. Create a plot of the drag polar for this aircraft for CL from 0 to 5. Plot CL on the vertical axis, CD on the horizontal axis, and do not include negative CL values.
b. What is the total drag coefficient at the flight condition described above?
c. What is the required thrust for level flight at this altitude in lb?
d. If the pilot runs the engines at maximum thrust, what is the instantaneous rate of climb at this altitude and velocity?

Answers

Answer:

a) attached below

b) 0.0337

c) 2730.206 Ib

d) 2320.338 ft/min

Explanation:

a) Plot of the drag polar for this aircraft

first we will calculate :

Wing area (s) = Wing span (b) * Average chord length(c)

                       = 53.3 * 6 = 319.8 ft^2

Aspect ratio =  b^2 / s = 8.883

K = 1 / [tex]\pi[/tex]eAR = 1 /

Drag polar ( Cd ) = 0.02 + 0.044 C^2L

attached below is a plot of the drag polar

Attached below is the detailed solution of the remaining part of the question

The hot-wire anemometer.' A hot-wire anemome ter is essentially a fine wire, usually made of platinum,which is heated electrically and inserted into a flowingfluid. The wire temperature, which is a function of the fluidtemperature, fluid velocity, and the rate of heating, may bedetermined by measuring its electrical resistance. It is used for measuring velocities and velocity fluctuations in flow systems. In this problem we analyze the temperature distribution in the wire element. We consider a wire of diameter D and length 2L supported at its ends (z = -L and z =+L) and mounted perpendicular to an air stream. An electric current of density I amp/cm^2 flows through the wire, and the heat thus generated is partially lost by convection to the air stream and partially by conduction toward the ends of the wire. Because of their size and their high electrical and thermal conductivity, the supports are not appreciably heated by the current, but remain at the temperature TL, which is the same as that of the approaching air stream. Heat loss by radiation is to be neglected.

Required:
Derive an equation for the steady-state temperature distribution in the wire, assuming that T depends on z alone.

Answers

Answer:

attached below

Explanation:

To derive the equation we have to make some assumptions

assumptions:

Assume T depends on Z alone

Assume uniform thermal and electrical conductivities (k and ke) in the wire, Assume  a uniform heat

transfer coefficient h from the wire to the air stream.

attached below is the required derivation of the equation

The inverted U-tube is used to measure the pressure difference between two points A and B in an inclined pipeline through which water flows. The differenceof level h=0.4m ; X=0.2; and Y=0.3m. Calculate the pressure difference between point B and A if the top of the manometer is filled with:
i) Air
ii) paraffin of relative density of 0.75

Answers

Answer:

i) 0.610 m or 610 mm

ii) 0.4 m or 400 mm

Explanation:

The pressure difference between the pipes is

a) Air

Pa + πha +Ha = Pb + πhb +Hb

Pa - Pb = π(hb-ha) + Hb-Ha

Relative density of air = 1.2754 kg /m3

Pa - Pb = 1.2754 * 0.4 + (0.3-0.2) = 0.610 m or 610 mm

b) paraffin of relative density of 0.75

Pa - Pb = π(hb-ha) + Hb-Ha

Pa - Pb = 0.75 * 0.4 + (0.3-0.2) = 0.4 m or 400 mm

How to report the analysis and calorific values of fuel​

Answers

Answer: Shawty my lil baddie

Explanation:

Which part of a machine control unit interacts with the machine tools through electric signals?=]

A machine control unit is the electronic hardware that stores information and controls the machine tools. This unit contains a data processing unit that stores and manipulates data, and a ___________ that interacts with the machine tools through electrical signals.

Answers

Answer:

control loop unit

Explanation:

Edmentum/Plato

How would I get this python code to run correctly? it's not working.​

Answers

Answer:

See Explanation

Explanation:

This question requires more information because you didn't state what the program is expected to do.

Reading through the program, I can assume that you want to first print all movie titles then prompt the user for a number and then print the move title in that location.

So, the correction is as follows:

Rewrite the first line of the program i.e. movie_titles = ["The grinch......."]

for each_movie_titles in movie_titles:

   print(each_movie_titles)

   

usernum = int(input("Number between 0 and 9 [inclusive]: "))

if usernum<10 and usernum>=0:

   print(movie_titles[usernum])

Line by line explanation

This iterates through the movie_titles list

for each_movie_titles in movie_titles:

This prints each movie title

   print(each_movie_titles)

This prompts the user for a number between 0 and 9    

usernum = int(input("Number between 0 and 9 [inclusive]: "))

This checks for valid range

if usernum<10 and usernum>=0:

If number is valid, this prints the movie title in that location

   print(movie_titles[usernum])

You have the assignment of designing color codes for different parts. Three colors are used on each part, but a combination of three colors used for one part cannot be rearranged and used to identify a different part. This means that in green, yellow and violet were used to identify a cam shaft, yellow, violet and green (or and combination of these three colors) could not be used to identify a pinion gear. If there are 35 combinations, how many colors are available

Answers

Answer:

7 available

Explanation:

Since 3 colors are available r = 3

Total combination = 35

nCr = 35 ---1

nCr = n!/(n-r)!r!---2

We put equation 1 and 2 together

n-1)(n-2)(n-3)!/n-3)! = 35x 3!

We cancel out (n-3)!

(n-1)(n-2) = 210

7x6x5 = 210

nC3 = 35

7C3 = 35

So If there are 35 combinations, 7 colors are available.

Thank you!

The available colors are illustrations of combination, and there are 7 colors available.

The given parameters are:

[tex]Total = 35[/tex] --- the number of combinations

[tex]r = 3[/tex] -- the number of colors in one combination.

The number of combinations is calculated using:

[tex]Total = ^nC_r[/tex]

Where n represents the number of colors available.

So, we have:

[tex]35= ^nC_3[/tex]

Apply combination formula

[tex]35= \frac{n!}{(n - 3)!3!}[/tex]

Expand the numerator

[tex]35= \frac{n(n - 1)(n - 2)(n - 3)!}{(n - 3)!3!}[/tex]

Cancel out the common factors

[tex]35= \frac{n(n - 1)(n - 2)}{3!}[/tex]

Expand

[tex]35= \frac{n(n - 1)(n - 2)}{3 \times 2 \times 1}[/tex]

[tex]35= \frac{n(n - 1)(n - 2)}{6}[/tex]

Multiply both sides by 6

[tex]210= n(n - 1)(n - 2)[/tex]

Rewrite the equation as

[tex]n(n - 1)(n - 2) = 210[/tex]

Using a graphing calculator, we have:

[tex]n = 7[/tex]

Hence, the number of colors available is 7

Read more about combination at:

https://brainly.com/question/4519122

Consider a fuel cell vehicle. The vehicle draws 30 kW of power at 60 mph and is 40% efficient at rated power. (It converts 40% of the energy stored in the hydrogen fuel to electric power.) You are asked to size the fuel cell system so that a driver can go at least 300 miles at 60 mph before refueling. Specify the minimum volume and weight requirements for the fuel cell system (fuel cell + fuel tank) given the following information:

• Fuel cell power density: 1 kW/L
• Fuel tank energy density (compressed hydrogen): 4 MJ/L

Answers

Answer:

minimum volume = 367.5 lit

minimum weight = 228.75 kg

When you measure
with a multimeter, you must break open the circuit and connect the meter's test leads in series with other circuits components
A. voltage
B. power
C. current
D. resistance

Answers

Answer:

resistance

Explanation:

so as to determine the reading

A baker deck decorates 42 cupcakes and 30 minute she decorated cupcakes at a constant rate how many cups cage the baker decorate pre-minute

Answers

Answer: 1.4 cupcakes per minute.

Explanation:

Here's the correct question:

A baker decorates 42 cupcakes in 30 minutes. How many cupcakes can the baker decorate per minute?

Since the baker decorates 42 cupcakes in 30 minutes, the number of cupcakes that the baker decorates for each minutes since it's at a constant rate will be the total number of cupcakes made divided by the number of minutes. This will be:

= 42cupcakes / 30minutes

= 1.4 cupcakes per minute.

Therefore, the number of cupcakes that the baker can decorate per minute is 1.4cupcakes/minute

explain the working and performance of a centrifugal clutch with a sketch​

Answers

Answer:

A centrifugal clutch works, as the name suggests, through centrifugal force.

One of the most common methods is by mounting the clutch onto the parallel or taper crank shaft of the engine.

When the crank shaft rotates the shaft of the clutch rotates at the same speed as the engine

How to report the analysis and calorific values of fuel​

Answers

Answer: heat value of a fuel is the amount of heat released during its combustion. Also referred to as energy or calorific value, heat value is a measure of a fuel's energy density, and is expressed in energy (joules) per specified amount (e.g. kilograms

Explanation:

How many 3-digits numbers which are greater than 300 can be formed from 6
digits (1,2,3,4,5,6)? while
i. Repetition not allowed
ii. Repetition allowed

Answers

Explanation:

111 even numbers greater than 300 can be formed with the digits 1,2,3,4,5 if repetition of digits in a number is not allowed.

Jerry wants to manufacture flat metal sheets. Which process will he use?
A. Turning
B. Reaming
C. Blow molding
D. Cold rolling
E. Milling

Answers

Option choice d is the correct answer

Answer:

c) blow molding

Explanation: when making bottles, you have hot plastic and use a blowing technique to shape it

A hydraulic jump is formed in a 4m wide outlet just downstream of a control gate, which is located at the upstream end of the outlet. The flow depth upstream of the gate is 20 m. Assume there are no losses in the flow through the gate. If the outlet discharge is 40 m3/s, determine (6 points)a. Flow depth downstream of the jump (y1)b. Energy losses in the jump (between y1 and y2).

Answers

Answer:

Width w = 4m

Glow depth = y1 = 20m

Outlet discharge = 40m

V1= velocity of flow = 40/20*4 = 1/2 = 0.5m/s

Froud number = v1/√gy1

= 0.5/√9.81x20 = 0.0356

1. Y2/20 = 1/2[-1+√1+8*(0.0356)²]

Y2 = 0.05

2. Energy loss in the jump = (20-0.05)²/4x20x0.05

= 1985m

..................................................

Answers

..................................................

Answer: yayyyy free sh.it

Explanation:

7.13 An intersection approach has a saturation flow rate of 1500 veh/h, and vehicles arrive at the approach at the rate of 800 veh/h. The approach is controlled by a pretimed signal with a cycle length of 60 seconds and D/D/1 queuing holds. Local standards dictate that signals should be set such that all approach queues dissipate 10 seconds before the end of the effective green portion of the cycle. Assuming that approach capacity exceeds arrivals, determine the maximum length

Answers

Answer:

23.34 seconds

Explanation:

Flow rate = 1500

Arrival = 800 vehicle per hour

Cycle c = 60 seconds

Dissipation time = 10 seconds

Arrival time = 800/3600 = 0.2222

Rate of departure = 1500/3600 = 0.4167

Traffic density p = 0.2222/0.4167 = 0.5332

Real time = r

r + to + 10 = c

to = c-r-10 ----1

t0 = p*r/1-p ----2

Equate both 1 and 2

C-r-10 = p*r/1-p

60-r-10 = 0.5332r/1-0.5332

50-r = 0.5332r/0.4668

50-r = 1.1422r

50 = 1.1422r + r

50 = 2.1422r

r = 50/2.1422

r = 23.34 seconds

Stefan Lano needs displays that will show the musical instrument inventory in his chain of music stores that caters to musicians playing in world-class symphony orchestras in Basel, Switzerland; Buenos Aires, Argentina; and Philadelphia and New York in the United States. Design a form-fill interface for the inventory control of musical instruments in all four stores that could be used on a computer display screen. Assume that English will be the interface language.

Answers

Answer:

attached below is an example of  the form

Explanation:

This type of form-fill can be described/developed based on the requirements or information needed by the organization in order to perfectly fulfill an order  and also to retain customers by making the form very easy and interactive attached below is an example of such form fill  interface

The housing for a certain machinery product is made of two components, both aluminum castings. The larger component has the shape of a dish sink and the second component is a flat cover that is attached to the first component to create an enclosed space for the machine parts. Sand casting is used to produce the two castings, both of which are plagued by defects in the form of misruns and cold shuts. The shop supervisor complains that the thicknesses of the parts are too thin, and that is the reason for the defects. However, it is known that the same components are cast successfully in other foundries. What explanations can be given for the defects

Answers

Answer:

The pouring of the molten metal during casting is done very slowly hence the molten metal froze before reaching all parts of the mould cavity. also the early freezing can occur if the temperature of the molten metal was lower than the required temperature for casting

Explanation:

since the same components are being casted at other foundries and they don't have the defects ,

Hence the reason for the defects experienced by these components can be caused when the pouring of the molten metal during casting is done very slowly hence the molten metal froze before reaching all parts of the mould cavity. also the early freezing can occur if the temperature of the molten metal was lower than the required temperature for casting .

Explain the importance of water quality in aquaculture business.

Answers

Answer:

this is very important the agricultural because there can be a risk of hight salt concentrations that can limit the amount of water plants can take

Answer:

Mantain the image of the business

Explanation:

Good water quality gives good images to others and furthers business

IF A CAR AHEAD OF YOU HAS STOPPED AT A CROSSWALK, YOU SHOULD:
A. Stop and then proceed when safe

B. Change lanes, look carefully, and pass

C. Slow down, look both ways, and proceed

D. Drive to the right edge of the road and stop

HELP PLZ

Answers

Answer:

well, depend if theres a stop sign or a light signal..you can always just honk at him/her so they proceed

Explanation:

but otherwise, the answer would be

A: stop and proceed when safe

Hope this helped! Have a nice day, and feel free to follow me on insta (leo_g_rios)

-XxDeathshotxX

Q.13 In order to produce maximum starting torque in a split-phase motor, how many degrees out of phase should the start- and run-winding currents be with each other?
Select one:
A. 180°
B. 0°
C. 120°
D. 90°

Answers

Answer:

D. 90 degrees.

Explanation:

Torque is a rotational force which moves an object in other direction. There should be 90 degrees out of phase to start, run winding currents with each other. Torque is produced by the rotational motion of an object. The angle of the object must be 90 degrees set in order to create torque.

Other Questions
Need help I will give Brainly to first correct answer the product of 8 and n is equal to 24 ObjectivesPecinay01:Posttest 01:Motion Along a Straight Lineeration1. An elevator moving down passes its neighbor, an elevator moving up. Their speed relative to one another is 8 m/s. What is the velocity of eachelevator relative to someone standing on the first floor? Assume that the elevators are traveling at the same speed, and that the upward direction ispositive.tant AccelerationO Both elevators are moving at 8 m/s.y Falling ObjectsO One elevator is moving at 4 m/s; the other elevator is moving at -4 m/s.O Both elevators are moving at 4 m/s.tive VelocityO One elevator is moving at 8 m/s; the other elevator is moving at -8 m/s.Postteston in a Planeton's Laws of Motion>1 of 25Submitblications of Newton'sDescription44011:53 PM4/4/2021 This one please. Thank you!! Write each as an algebraic expression.how do you write 18 less than 20 as an algebraic expression? what are some facts, information and opinions on robert frost how is the location of the rough ER related to.its overall purpose for the cell if alpha beta are the roots of the equation 2 x square - 6 x + 5 is equal to 0 find the equation whose roots are alpha / beta and beta/alpha Find the area of the polygons Find the surface area of the right rectangular prism shown below. The coordinate plane represents a map. Each grid unit represents 20 miles. A retail company has a warehouse at N(70, 40). A store is located at P(70, 20). How long will it take a truck driving at 50 miles per hour to drive from warehouse N to this store? Dar un ejemplo en donde se puede aplicar lista multinivel y nombrar los botones que nos permiten cambiar de un nivel al otro If you're having trouble staying on topic during the drafting process, which of the following would be the most helpful advice?O A. Look at your outline and compare it to what you've just writtenO B. Make sure to explore any tangents that you find interesting while you're writingO C. Try to edit and revise the paper as you're drafting itO D. Throw out everything you've written and start over, sticking to your outline can you guys helps me please I will mark you brianly thank you You have 80 grams of a radioactive kind of europium. If its half-life is 9 years, how much will be left after 27 years? A restaurant manager believes that a majority of customers who dine at his restaurant would rate the food as excellent. To investigate this belief, he sends an email survey to a random sample of 50 customers from the large list of customers who have signed up for his frequent diner club. To encourage the customers to complete the survey, he offers a $10 gift card upon completion of the survey. He receives 22 responses, of which 20 rated the food as excellent. He would like to know if these data provide convincing evidence that more than 50% of custome who dine at his restaurant would rate the food as excellent. Are the conditions for inference met? O Yes, the conditions for inference are met. O No, the 10% condition is not met. No, the Large Counts Condition is not met. O No, the randomness condition is not met. When mrs.Larkins went to her garden to pick tomatoes, 4 out of 20 were rotten. If mrs. Larkin picked 70 tomatoes, how many were rotten. Can I get help with this math problem The following set of coordinates represents which figure? (0, 4), (0, 7), (1, 5), (1, 2) (5 points) Consider the interactions between the Aborigines and the British settlers. Then, based on your knowledge of U.S. history, think about how American Indians in North America interacted with European settlers. Use the tables below to compare and contrast these native peoples and their relations with European settlers.