fluid flows past a flate plate with a drag force d1. if the free stream velcoty is doubled will the new drag force d2 be larger or smaller than d1 and by what amount

Rivets made of a 2017 aluminum alloy are refrigerated before use to prevent the rivets from aging and losing their mechanical properties.

The 2017 aluminum alloy is a heat-treatable alloy, which means it can be strengthened by a process called precipitation hardening. This process involves heating the alloy to a specific temperature and then rapidly cooling it.

Refrigerating the rivets helps maintain their desired properties by slowing down the aging process. Aging occurs when the alloy is exposed to elevated temperatures over time, leading to changes in its microstructure and mechanical properties. By refrigerating the rivets, the temperature is kept low, which helps to delay or minimize the aging process.

Preserving the mechanical properties of the rivets is important for ensuring their strength and reliability when used in structural applications. By refrigerating the rivets, the manufacturer can ensure that the rivets retain their optimal properties until they are ready to be installed, providing secure and durable connections in the assembled structure.

Know more about aluminum alloy here;

https://brainly.com/question/14348722

#SPJ11

The upstream depth of 0.35 m is too much to create the necessary pressure head that would keep the water surface level

What is surface level?

Surface level refers to the top or exposed layer of an object or area. It can be used in a variety of contexts, from describing the surface of the Earth, to the outside of a building, to the top layer of paint on a wall, to the top layer of a fabric. In all cases, the surface level is the first layer that is encountered. The surface level of an object or area can provide valuable information about its composition and characteristics, and can also be used to measure changes over time.

The flow depth over the bump (y2) will be 0.25 m, and the free surface elevation (y2 z2) will rise. This is because the bump causes the flow to accelerate, and the upstream depth of 0.20 m is not enough to create the necessary pressure head that would keep the water surface level, The flow depth over the depression (y2) will be 0.23 m, and the free surface elevation (y2 z2) will fall. This is because the depression causes the flow to decelerate, and the upstream depth of 0.35 m is too much to create the necessary pressure head that would keep the water surface level.

To learn more about surface level
https://brainly.com/question/14722489
#SPJ4

Answer:

Engine oil level.

Brake fluid.

Power steering fluid.

Answer:

Food and drug admin

Explanation:

Answer:

Used to recall the direction a standard screw

Answer:

When a force is exerted on an object it can change the object's speed, direction of movement or shape. Pressure is a measure of how much force is acting upon an area. Pressure can be found using the equation pressure = force / area. Therefore, a force acting over a smaller area will create more pressure

Explanation:

hope it will become helpful to you ☺️☺️

Possible candidate keys for this automobile dealership include the stock number and the vehicle identification number (VIN), as they are unique identifiers for each vehicle in the dealership's inventory.

The likely primary key would be the stock number or VIN, as they are both unique and can be used to easily search and retrieve information about a specific vehicle.A probable foreign key could be the invoice number, as it may be used to link vehicle information with the dealership's accounting system. For example, a sales transaction for a specific vehicle may reference the invoice number, which can be used to retrieve the invoice cost and other financial information.Potential secondary keys could include the make, model, year, and color of the vehicle. These fields can be used to search and filter the inventory based on specific criteria, such as finding all vehicles of a certain make or year.

To learn more about vehicle click the link below:

brainly.com/question/15188444

#SPJ1

Answer:l=legend

Explanation:basically L = legend and Q=Quick

The three formula for finding out the 3 types of the slope of curve Q with respect to L should be explained below.

1. Slope intercept form where the formula is y = mx + b

Here

y = variable

m = slope of line

x = variable

b = y intercept

2. Point slope form where the formula is y - y1 = m(x - x1)

Here

y = variable

y1 = y coordinate at the first point on line

m = the slope

x = variable

x1 = x coordinate at the first point on line

3. Standard slope form where the formula is ax + by = c

Here

a = x coefficent

b & c = constant term

learn more about formula here: https://brainly.com/question/24454271

We can see here that the maximum value of rolling resistance over which a loaded scraper can maintain is: 780 lb/ton

Rolling resistance is the force that resists the motion of a rolling object on a surface. Maximum rolling resistance refers to the highest level of resistance that an object can encounter while rolling on a particular surface.

For a fully loaded condition:

The total resistance = (gross + rolling) resistance

52% = 0% - rolling resistance

rolling resistance = 52%

The maximum rolling resistance = rolling resistance percentage × speed

The maximum rolling resistance = 52% (15 lb/ton)/(1% resistance)

The maximum rolling resistance = 780 lb/ton

Learn more about maximum rolling resistance on https://brainly.com/question/27021939

#SPJ1

Answer: Si (Yes)

Explanation:

Answer:

Protozoario o protozoo es un organismo unicelular y eucariota (con núcleo celular definido) perteneciente al Reino protista. Los protozoarios se encuentran junto con los protófitos o algas simples, generalmente acuáticas, dentro del Reino protista o también denominado Reino protoctista.

Explanation:

Explanation:

1. Verify the scope of work: Make sure you understand the scope of work and requirements for the customer's club instance. Confirm with the customer if any specific settings or customizations are required.

2. Schedule the PIC: Coordinate with the customer to schedule a suitable time and date for the PIC. Ensure that all necessary stakeholders are available and informed.

3. Review the customer's club instance: Review the customer's club instance to identify any potential issues or conflicts that need to be addressed during the PIC. Check the instance for any configuration, integration, or data issues.

4. Prepare for the PIC: Prepare a checklist and any necessary tools or documentation for the PIC. Make sure you have access to the customer's club instance, including any necessary login credentials or permissions.

5. Initiate the PIC: Once you have completed the above steps, initiate the PIC by going through the checklist and verifying that the customer's club instance is set up correctly and meets their requirements. Identify any issues or gaps that need to be addressed and work with the customer to resolve them.

6. Follow up: Once the PIC is complete, provide the customer with a report or summary of the findings. Follow up with any necessary actions or next steps, and confirm that the customer is satisfied with the results

Using the knowledge in computational language in python it is possible to write a code that output the number of characters excluding the three characters commonly used for end-of-sentence punctuation.

   import re

   def check_sentence(text):

     result = re.search(r"^[A-Z][A-Za-z\s]*[\.\?!]$", text)

     return result != None

   print(check_sentence("Is this is a sentence?")) # True

   print(check_sentence("is this is a sentence?")) # False

   print(check_sentence("Hello")) # False

   print(check_sentence("1-2-3-GO!")) # False

   print(check_sentence("A star is born.")) # True

See more about python at brainly.com/question/19705654

#SPJ1

A bend is defined as a change in the shape of the part between the damaged and undamaged area that is smooth and continuous.

What is a kink?

A kink can be defined as a sharp bend with a small radius over a short distance.

So when any part is kinked it must be replaced without any doubt. A part is kinked if it just doesn't work on the repair.

What is a bend?

Unlike a kink, a bend can be restored. That is after a bend also  a part can be bought back to its original position.

When the part is straightened, it is returned to proper shape and state without any areas of permanent deformation.

To know more about bend visit:

https://brainly.com/question/27937041

#SPJ9

The elevation of lowest point of the curve is 445.077 ft.

Height above or below the mean sea level is referred to as elevation. A map's elevation can be depicted either by labelling the precise elevations of specific points or by using contour lines, which link points of the same elevation. Topographic maps are depicted as having elevations.

Calculate rate of change of the curve as below:

\($$\begin{aligned}r & =\frac{g_2-g_1}{L} \\& =\frac{2.5-(-4.0)}{\left(\frac{400}{100}\right)} \\& =1.625 \%\end{aligned}$$\)

Calculate distance from PC to the lowest point as below:

\($$\begin{aligned}X & =\frac{-g_1}{r} \\& =\frac{-(-4.0 \%)}{1.625 \%} \\& =2.462 \mathrm{ft}\end{aligned}$$\)

Calculate the elevation of the lowest point of the curve as below:

\($$\begin{aligned}Y & =Y_{P C}+g_1 X+\frac{r}{2} X^2 \\& =450\mathrm{ft}+(-4.0 \times 2.462)+\frac{1.625}{2}(2.462)^2 \\& =450\mathrm{ft}-9.848 \mathrm{ft}+4.925 \mathrm{ft} \\& =\mathbf{445.077} \mathrm{ft}\end{aligned}$$\)

Thus, the elevation of lowest point of the curve is 445.077ft.

Learn more about elevation

https://brainly.com/question/29477960

#SPJ4

Answer:

D) AND gate.

Explanation:

Given that:

A certain printer requires that all of the following conditions be satisfied before it will send a HIGH to la microprocessor acknowledging that it is ready to print

These conditions are:

1. The printer's electronic circuits must be energized.

2. Paper must be loaded and ready to advance.

3. The printer must be "on line" with the microprocessor.

Now; if these conditions are met  the logic gate produces a HIGH output indicating readiness to print.

The objective here is to determine the basic logic gate used in this circuit.

Now;

For NOR gate;

NOR gate gives HIGH only when all the inputs are low. but the question states it that "a HIGH is generated and applied to a 3-input logic gate". This already falsify NOR gate to be the right answer.

For NOT gate.

NOT gate operates with only one input and one output device but here; we are dealing with 3-input logic gate.

Similarly, OR gate gives output as a high if any one of the input signals is high but we need "a HIGH that is generated and applied to a 3-input logic gate".

Finally, AND gate output is HIGH only when all the input signal is HIGH and vice versa, i.e AND gate output is LOW only when all the input signal is LOW. So AND gate satisfies the given criteria that; all the three conditions must be true for the final signal to be HIGH.

The false statement is A∩A^2=∅.

Given, A = {a, b} and B = {1, 2, 3}

Firstly, we need to understand what the terms mean in the given statements:

Let A = {a, b} and B = {1, 2, 3}. Then, A × B is a Cartesian product of A and B.

This means that A × B = {(a,1), (a,2), (a,3), (b,1), (b,2), (b,3)}.(b,3) ∈ A × B, which is true.

A^2 is a set of all possible ordered pairs (a, b) where a and b are from A.

Therefore, A^2 = {(a, a), (a, b), (b, a), (b, b)}.(b, a) ∈ A^2, which is true.

Now, A ∩ A^2 is an intersection of two sets, A and A^2. Since A = {a, b} and A^2 = {(a, a), (a, b), (b, a), (b, b)}, then A ∩ A^2 = {(a, a), (b, b)}. This means that A ∩ A^2 ≠ ∅, and the statement A∩A^2=∅ is false.

|A × B| is the number of elements in A × B. Since A × B = {(a,1), (a,2), (a,3), (b,1), (b,2), (b,3)}, then |A × B| = 6. This means that |A × B| = 5 is false.

The correct option is: A∩A^2=∅ is a false statement.

To know more about intersection refer to:

https://brainly.com/question/29185601

#SPJ11

Answer:

(166.0 mm Hg) (273.15 mL) = (760.0 mm Hg) (x)

Answer:

Explanation:

The correct answer is "D. This device converts the chemical energy of hydrogen into electricity through a chemical reaction with oxygen or another oxidizing agent."

A talks about bio-ethanol fuel.

B is solar.

C is fossil.

E is electricity generation.

Answer:

Explanation:

ans is:

This device converts the chemical energy of hydrogen into electricity through a chemical reaction with oxygen or another oxidizing agent. O D

Answer:

The correct answer is C) Electrical Contractor

Explanation:

EWR refers to Electrical Work Request.

According to the EWR Specifications, the Contractor is responsible for picking up and disposing of debris or rubbish from equipment installed by the electrical contractor on the project.

The EWR specification state that:

For the disposal of building waste materials, and garbage, the contractor shall have on-site enclosed dumpsters or bins and shall regularly eliminate the items referred to above from the site.

Cheers

Depending on its capabilities and resources, an engine manufacturing business may effectively diversify into the automotive, marine, or power generating industries, among others.

A business that makes engines could expand into the automotive, marine, or power generating sectors. Engines are needed for automobiles, trucks, and buses in the automotive sector, and demand for hybrid and electric engines is rising. Engines are needed for boats and ships in the maritime industry as well, and there is an increasing need for ecologically friendly and more efficient engines. Engines are needed in the power generating sector for distant area electricity and backup generators. Also, firms that make engines that want to diversify their product portfolios may find a market in the aircraft sector.

learn more about Engines here:

https://brainly.com/question/20787480

#SPJ4

Answer:

A, D, F

Explanation:

took on edge.

Answer:

The answer is A,D,F

A:observing and interpreting readings on gauges, meters, and charts

D:testing boiler water quality or arranging for testing

F:operating or tending stationary engines, boilers, and auxiliary equipment

Explanation:

I got all right on edge.

Answer:

115 Ib/ft^3

Explanation:

To determine the maximum dry density in Ib/ft3 we have to calculate :

Bulk unit weight ( yb ) ; W / v

Dry unit weight ( yd. ) :  yb / ( 1 + w )

For every set of data given

assuming  v = 1/30 ft^3

calculating for the 3 data set ( maximum dry density )

weight of soil (W) = 4.40

moisture content (%) (w) = 15.0 = 0.15

Bulk unit weight (yb) = 4.40 / (1/30)  = 132 Ib/ft^3

Dry unit weight ( yd. ) = 132 / ( 1 + 0.15 ) = 114.702 Ib/ft^3

therefore after calculations the maximum dry density in Ib/ft^3 ≈ 115 Ib/ft^3

As a project manager, I would employ the following strategy to address resistance to changes in the home renovation project:

Strategy: Effective Communication and Stakeholder Engagement

To address resistance to changes, it is crucial to establish open and transparent communication channels with all stakeholders involved in the project. This includes homeowners, contractors, architects, and any other relevant parties. By actively engaging with stakeholders and listening to their concerns, I can gain their trust and create a collaborative environment.

Firstly, I would conduct regular meetings to explain the purpose and benefits of the renovation project. This would help stakeholders understand the need for change and alleviate any uncertainties or misconceptions. Clear and concise communication is key to ensuring everyone is on the same page.

Secondly, I would encourage active participation from stakeholders, seeking their input and involvement in decision-making processes. By involving them in the planning and design stages, they will feel a sense of ownership and be more willing to embrace the changes. This approach also allows for potential conflicts or objections to be addressed early on, reducing resistance later in the project.

Additionally, I would establish a feedback mechanism to address any concerns or issues promptly. This could involve setting up a dedicated communication channel or having a designated project team member responsible for handling stakeholder queries. Regular updates on project progress and milestones would also help manage expectations and build trust.

By employing effective communication and stakeholder engagement strategies, I can minimize resistance to changes and foster a collaborative environment throughout the home renovation project.

Learn more about Effective Communication:

brainly.com/question/1285845

#SPJ11

Answer:

2)

a)  to the right of the dipole    E_total = kq [1 / (r + a)² - 1 / r²]

b)To the left of the dipole      E_total = - k q [1 / r² - 1 / (r + a)²]

c) at a point between the dipole, that is -a <x <a  

      E_total = kq [1 / x² + 1 / (2a-x)²]

d) on the vertical line at the midpoint of the dipole (x = 0)

E_toal = 2 kq 1 / (a ​​+ y)² cos θ

Explanation:

2) they ask us for the electric field in different positions between the dipole and a point of interest. Using the principle of superposition.

This principle states that we can analyze the field created by each charge separately and add its value and this will be the field at that point

Let's analyze each point separately.

The test charge is a positive charge and in the reference frame it is at the midpoint between the two charges.

a) to the right of the dipole

The electric charge creates an outgoing field, to the right, but as it is further away the field is of less intensity

           E₊ = k q / (r + a)²

where 2a is the distance between the charges of the dipole and the field is to the right

the negative charge creates an incoming field of magnitude

           E₋ = -k q / r²

The field is to the left

therefore the total field is the sum of these two fields

           E_total = E₊ + E₋

           E_total = kq [1 / (r + a)² - 1 / r²]

we can see that the field to the right of the dipole is incoming and of magnitude more similar to the field of the negative charge as the distance increases.

b) To the left of the dipole

The result is similar to the previous one by the opposite sign, since the closest charge is the positive one

E₊ is to the left and E₋ is to the right

          E_total = - k q [1 / r² - 1 / (r + a)²]

We see that this field is also directed to the left

c) at a point between the dipole, that is -a <x <a

In this case the E₊ field points to the right and the E₋ field points to the right

                      E₊ = k q 1 / x²

                      E₋ = k q 1 / (2a-x)²

                      E_total = kq [1 / x² + 1 / (2a-x)²]

in this case the field points to the right

d) on the vertical line at the midpoint of the dipole (x = 0)

    In this case the E₊ field points in the direction of the positive charge and the test charge

    in E₋ field the ni is between the test charge and the negative charge,

the resultant of a horizontal field in zirconium on the x axis (where the negative charge is)

                      E₊ = kq 1 / (a ​​+ y) 2

                      E₋ = kp 1 / (a ​​+ y) 2

                      E_total = E₊ₓ + E_{-x}

                      E_toal = 2 kq 1 / (a ​​+ y)² cos θ

e) same as the previous part, but on the negative side

                        E_toal = 2 kq 1 / (a ​​+ y)² cos θ

When analyzing the previous answer there is no point where the field is zero

The different configurations are outlined in the attached

3) We are asked to repeat part 2 changing the negative charge for a positive one, so in this case the two charges are positive

a) to the right

in this case the two field goes to the right

           E_total = kq [1 / (r + a)² + 1 / r²]

b) to the left

            E_total = - kq [1 / (r + a)² + 1 / r²]

c) between the two charges

E₊ goes to the right

E₋ goes to the left

            E_total = kq [1 / x² - 1 / (2a-x)²]

d) between vertical line at x = 0

E₊ salient between test charge and positive charge

           E_total = 2 kq 1 / (a ​​+ y)² sin θ

In this configuration at the point between the two charges the field is zero

Solution :

Assume that the length of the string is constant and the string is inextensible.

The length of the string between the truck and pulley 1 is constant. Also total length of string connecting the truck wrapping pulley 1 and passing over pulley 2 is also constant.

Therefore, from the figure,

L+a+a = constant

L+2a = C

Differentiating both sides w.r.t time, we get

\($\frac{dL}{dt}+2\frac{da}{dt}=\frac{dC}{dt}$\)  

\($\frac{dL}{dt}=V_T = 18 \ ft/s$\)          

\($18 + 2 \frac{da}{dt}=0$\)

where, \($\frac{da}{dt} = V_C = $\)    speed of the car

So

\($18+2V_C=0$\)

\($V_C = -9 \ ft/s$\)     (only magnitude of speed has significance, so negative sign                                                            

                               is ignored )

Therefore, the speed of the car is 9 ft/s

When a file is used by a program, the steps involved includes opening the file, modifying its contents and closing the file.

The first step is open the file which establishes a connection between the program and the file. Once opened, the program can perform various operations like reading data from the file or modifying its contents.

After necessary operations are completed, it is important to close the file to release system resources and ensure data integrity. Closing file ensures changes made are properly saved and that other programs or processes can access the file if needed.

Read more about program

brainly.com/question/26134656

#SPJ4

Answer:

  infinite

Explanation:

The impedance of an ideal parallel resonant circuit is infinite at the resonant frequency. The sum of the admittances of the branches of the circuit is zero.

8 MB Physical memory needed to storing for page table.

Given

Virtual address = 33 bit.= 2³³ B

Page Number (P) Page Size (d)

21 12

Page Size = 4KB= 4*2¹⁰ B= 2²*2¹⁰ B (12 bit)

( 1K = 2¹⁰).

Total Number of Page (P) =

Virtual address Size/ Page Size

= 2³³B/ 2¹²B

= 2²¹ .

Page Table data structure used to mapping between Virtual Address and Physical Address.

page table contains all information about every page in PTE (Page Table Entry) .

In one PTE contain information of one page.

Size of Page Table

= Number of Page * Size of PTE

= 2²¹ * 4 B

= 2²¹ * 2² B

= 2²³ B

= 2³ MB. ( 1M = 2²⁰)

= 8MB.

8 MB Physical memory needed to storing for page table.

Read more about virtual memory here:

https://brainly.com/question/13088640

#SPJ1