which cognitive system is responsible for searching through a lego set for a specific piece you haven't seen before?A. System 1B. System 2

When designing a dashboard, how can data analysts ensure that charts and graphs are most effective by Place them in a balanced layout

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Answer:

30 mm is the minimum thickness that must be applied.

Explanation:

Given the data in the question;

Using Fourier's equation. the heat rate is  

q = kA(ΔT/Δx)

where

A is the surface area, we must consider all surfaces through which the heat can dissipate through

i.e 2×2 for one wall gives you 4m²,

there are 5 walls, so we will  have 20m² for surface area.

k is thermal conductivity of the styrofoam ( 0.030 W/m K)    

q is the heat loss (500 W  )

ΔT is the Temperature difference ( 35 - 10) = 25°C

Δx  = ?

So we substitute

500 = (0.030)(20)(25/Δx)

500 = 0.6 (25/Δx)

500 = 15 / Δx

Δx = 15 / 500

Δx = 0.03 m = 30 mm

Therefore, 30 mm is the minimum thickness that must be applied.

Answer: It takes the form of heat or thermal power.

Explanation: I got it right on the test.

Answer:

B. It takes the form of heat or thermal power.

Explanation:

edg21

You can erase the entire formula and start over, but you cannot delete the cells in an array formula (you will notice a "You cannot edit part of an array" error).

A block of result cells cannot be expanded, but you can add new data to your spreadsheet and subsequently expand your formula. How may cells be removed from an array?

Get rid of the array formula

The array formula cell should be clicked.

Click Find & Select, then Go To, on the Home tab's Editing group.

Choose Special.

Choose Current array.

Tap DELETE.

To delete a cell, row, or column in a table, right-click on it. Click Delete Cells under the menu. Choosing Shift cells left or Shift cells up will erase one cell.

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Answer:

Ductile

Explanation:

So, from the question, we have the following information or parameters or data which is going to help us in solving this particular problem or question;

=> " impact testing a sample = -100oC shows that the fracture surface is very DULL AND FIBROUS"

TAKE NOTE: DULL AND FIBROUS.

IMPACT TESTING is used by engineers in the configuration of a sample or object.

In order to determine whether a specimen is ductile or brittle, it can be shown from its appearance for instance;

A DUCTILE SAMPLE will be DULL AND FIBROUS thus, our answer!

But a brittle sample will have a crystal shape.

Answer:

\(0.015\ \text{W}\)

Explanation:

\(T_{set}\) = Set temperature = \(70^{\circ}\text{C}\)

\(T_\infty\) = Air temperature = \(50^{\circ}\text{C}\)

A = Surface area = \(30\ \text{mm}^2=30\times 10^{-6}\ \text{m}^2\)

h = Convection heat transfer coefficient = \(25\ \text{W/m}^2\text{K}\)

Heater power is given by

\(P_e=hA(T_{set}-T_\infty)\\\Rightarrow P_e=25\times 30\times 10^{-6}(70-50)\\\Rightarrow P_e=0.015\ \text{W}\)

The required heater power is \(0.015\ \text{W}\)

The reason that operations managers consider these aspects is because they want to provide quality service to the users of the telephone line.

Globalization is a term that refers to an economic, technological, political, social and cultural process that has had influence throughout the world. Globalization is based on the growing communication and interdependence between the different countries of the world, uniting their markets and societies.

This situation is related to globalization because it shows that companies can hire employees anywhere in the world because technology allows a person from India to communicate with someone from the United States without any difficulty.

Additionally, it is part of globalization because employees are trained so that their English accent is similar to that of the United States so that users of the line do not detect that they are from another country and feel more confident to book their tickets.

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When changes are made to some but not all copies of redundant data in a database, inconsistent data and propagation of incorrect data throughout the DBMS as transactions access and store the copies of redundant data which were not originally updated can result. Therefore, options (b) and (c) are correct.

Redundancy refers to the act of duplicating data within a database. Data redundancy is a situation in which the same data is saved in two or more places. When data redundancy exists, it becomes more challenging to manage and maintain data quality.

In this case, some but not all copies of redundant data are changed, which can result in problems. This might cause inconsistencies in the data or make it difficult to get consistent outcomes from queries that access the data. This is a significant risk when dealing with data.

Therefore, data redundancy should be avoided as much as possible to prevent data integrity problems.

So, option b and option c are the correct answers.

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All of the above are acceptable means of making a steel column fire-resistant.

Spraying low-density fibers or cementitious compounds, also known as spray-applied fire-resistive materials, is the most common method of fireproofing.

Applying intumescent mastic/paint also known as intumescent paints protects steel members from fire. By creating a buffer between a steel element and the fire, intumescent coatings can expand by as much as 100 times their original thickness.

Encase the column in concrete is majorly utilized in large sections whereby steel is encased in. Based on the amount of concrete used, this requires more space than other options. Additionally, because it is not as visually appealing as others, it is utilized in settings where appearance is not the primary consideration.

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Answer:

A. Collecting samples to analyze is expensive

Explanation:

Experimental research designs may be referred to as an analytical approach which is based on establishing a scientific hypothesis through by subjecting observations or subjects to certain treatment carried out in a controlled environment. In a typical experimental research design, we have two groups which are the constant group or observation and the variable group which are the actual experimetal group which are subjected to treatment and whose behavior are compared to that of the constant group. From the options given, one actual limitation of the experimetal research design is the associated cost particularly those which require longer time to study and analyse. Other limitations include ; difficulty in measuring human response and skepticism over applicability of findings in a natural environment.

Answer:

collecting samples to analyze is very expensive is correct^

Explanation:

just took the quiz, thanks btw

Answer:3000 yd3

Explanation:

so i got the 50000 divided it by 100 times that by 13 and got 4500 yd3

so now the soil is at 9 so i need to get the 4 percent back up so i yet again got 50000 yd3 and divided by 100 and times it by 9 to get 1500 yd3 to then minus my 1500 and 4500 yd3 and got 3000 yd3 i hope it is right.

Answer: Ethanol

Explanation:

When designing a set of simple test programs to determine the type compatibility rules of a C compiler to which you have access, it is important to consider the different data types that are used in C programming. An example of a set of test programs that can be used to determine the type compatibility rules of a C compiler:

Integer Test the compatibility of the C compiler with integer data types. It declares two variables of type int, initializes them with values, and then adds them together. The result is printed to the screen. If the program compiles and runs without any errors, then the C compiler is compatible with integer data types.

Floating-Point Test  the compatibility of the C compiler with floating-point data types. It declares two variables of type float, initializes them with values, and then adds them together. The result is printed to the screen. If the program compiles and runs without any errors, then the C compiler is compatible with floating-point data types.

By running the set of simple test programs described above, you can determine the type compatibility rules of a C compiler to which you have access. If any of the programs do not compile or run without errors, then you can determine which data types are not compatible with the C compiler and adjust your code accordingly.

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Here's the for loop that prints the desired output:

for (int i = 1; i <= userNum; i++) {

  System.out.print(i + " ");

}

The for loop starts with i equal to 1 and continues as long as i is less than or equal to userNum. In each iteration, the loop prints the value of i followed by a space using System.out.print(). After the loop finishes, the program prints a newline character to move to the next line.

In this specific case, userNum is initialized to 4, so the loop will run for 4 iterations and print the numbers 1 through 4 with a space after each number. The final output will look like this:

1 2 3 4

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Electric

Answer

Explain

Home safety and security is an electric process as there are some devices that have electric involvement.

The systems in house safety are which consist of sensors and regular cameras or sirens, are armed via way of means of inputting a code at the keypad, the usage of a voice command, urgent a key fob, or doing it via an app.

Electronic protection gadget refers to any digital device that might carry out protection operations like surveillance, get right of entry to manage, alarming or an intrusion manage to a facility or a place which makes use of energy from mains and additionally an energy backup like a batter.

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The primary role of peripheral vision when driving is to provide drivers with a wider field of view to detect any potential hazards or obstacles on the sides of the road.

Peripheral vision helps drivers to maintain awareness of their surroundings, even while focusing on the road ahead. It enables drivers to quickly detect any movement or changes in the environment that could pose a threat to their safety. This is why it's important for drivers to regularly check their mirrors and scan their surroundings while driving, in order to keep an eye out for any potential dangers.

Peripheral vision also plays a crucial role in helping drivers to maintain their balance and spatial orientation while navigating curves, turns, and other changes in the road. Overall, the primary role of peripheral vision in driving is to enhance a driver's situational awareness and help them to anticipate and respond to potential hazards on the road.

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Air pressure at the end of the Turbine exit is : 730.57 K

Given data :

Pressure ratio ( p₂ / p₁ )= 10.9

minimum temperature ( T₁ ) = 280 K

maximum temperature ( T₃ ) = 1410 K

Assuming :

constant specific heat and efficiency of 100%

For air :

Cp = 1.005 kJ/kg.k,  Cv = 0.718 kJ/kg.k,  v = 1.4

Given that efficiency for compressor and turbine is 100% the process ( 1-2 , 3 - 4 ) will all be isentropic

We will Apply the formula below

\(\frac{T_{2} }{T_{1} } = ( \frac{p_{2} }{p_{1} } )^{\frac{v-1}{v} } = ( \frac{V_{1} }{V_{2} } )^{v-1}\)

Insert values into equation ( 1 )

T₂ = 551.147 K  ( temperature at compressor exit )

Next : Determine the value of the temperature at Turbine exit ( T₄ )

T₃ / T₄ = 10.7^\(^{\frac{1.4-1}{1.4} }\)

Therefore : T₄ = 1410 / 10.7^0.286

                        = 1410 / 1.93

                        = 730.57 K

Hence we can conclude that the Air pressure at the end of the Turbine exit is :  730.57 K .

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The code that assigns the value True to a variable called found if the target exists in L and False otherwise is:

found = target in L

From the question, we have the following parameters that can be used in our computation:

Initial variables = L and target

Where

L = List and target = integer

The condition is such that:

There are several ways to do this.

One of them is the following code segment

found = target in L

Another way is

if target in L:

   found  = True

else

   found  = False

Another solution is

found  = False

if target in L:

   found  = True

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Answer:

Tech A and Tech B are correct

Explanation:

Tech A is correct because radial ply tires have more flexible sidewalls than radial tires due to the fact that radial tires make use of two or more layers of casing piles and are thus not much flexible.

Also, tech B is correct because bias-ply tires typically have more durable construction than radial tires

Small particles in your power steering system may Damage the hydraulic pump.

Check more about the reason for the above in the power steering system below:

If a person is said to have notice that there is  small black particles that can be seen inside of the power steering reservoir, there is therefore some chances that are these are some piece of the hose, instead of  the pump or rack.

Since High-temperature pulsations can be able to lead the power steering hoses to be destroyed  from the inside.

Therefore, based on the above, one can say that Small particles in your power steering system may Damage the hydraulic pump.

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1) Addition
2) Multiplication

To answer your question, your little brother could practice his arithmetic skills by writing a computer program that will allow him to play two separate games. The program should prompt your brother with the following menu:

1) Play Arithmetic Game
2) Play Guessing Game
3) Print Score
4) Quit

If he chooses option 1, then he should be prompted with the following menu choices:

1) Addition
2) Multiplication

By playing the two games, your brother can practice his arithmetic skills and become more proficient in them.

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Answer:

  15,600 Ω

Explanation:

The total resistance in a series circuit is the sum of the resistances that are in series:

  100 Ω + 500 Ω + 15000 Ω = (100 +500 +15000) Ω = 15,600 Ω

Answer:

Solution :

Taken moment about point B;

\($\sum M_B = 0$\)

\($\left[(w)(4)(2)-N_A \sin 30^\circ (3)(\sin 30^\circ)-N_A \cos 30^\circ(3 \cos 30^\circ +4) \right] =0$\)

\($N_A = 1.2376w$\)

\($\sum F_x = 0$\)

\($N_A \sin 30^\circ - B_x = 0$\)

\($B_x = 1.2376w \times \sin 30^\circ$\)

\($B_x = 0.6188w$\)

\($\sum F_y = 0$\)

\($B_y+N_A \cos^\circ - (w \times 4) = 0$\)

\($B_y+(1.2376w) \cos 30^\circ - (w \times 4)=0 $\)

\($B_y = 2.9282w$\)

Now calculating the resultant force at B,

\($F_B= \sqrt{B_x^2+B_y^2}$\)

\($F_B= \sqrt{(0.6188w)^2+(2.9282w)^2}$\)

     = 2.9929w

For no failure,

\($N_A<4 \ kN $\)

2.9929 w < 4 kN

\($w < 3.232 \ kN/m$\)

And,

\($F_B < 8 \ kN$\)

2.9929 w < 8 kN

w < 2.673 kN/m

For the safe operation, w = 2.673 kN/m  

The most accurate response is: No. Dispersivity is generally larger in some directions than in others.

Dispersivity refers to the extent to which a fluid or solute spreads out or disperses in a porous medium, such as soil or rock. It is a property that characterizes the transport behavior of contaminants or pollutants in the subsurface. In many cases, the dispersivity value (a) is not the same in all directions within a given site.

The dispersivity value is influenced by various factors, including the physical properties of the porous medium, the nature of the contaminant, and the flow conditions. These factors can lead to variations in dispersivity values in different directions.

For example, in a highly heterogeneous subsurface environment, where there are variations in the size and connectivity of pores, the dispersivity may be larger in certain preferential flow paths or along fractures, resulting in higher dispersion in those directions. On the other hand, in directions where the porous medium is more homogeneous or where flow paths are restricted, the dispersivity may be smaller, leading to less dispersion.

Therefore, it is important to consider the anisotropic nature of dispersivity, where its value can vary in different directions, when assessing the potential transport and spread of contaminants in a given site. Understanding these directional variations in dispersivity can help in designing effective remediation strategies and predicting the movement of contaminants in the subsurface.

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Answer:

Option B: False

Explanation:

A heat engine is a device which operates in a manner that heat is converted into mechanical work.

A simple example of a heat engine is a drinking bird. The oscillatory motion of the drinking bird is as a result of the thermal expansion and contraction of a chemical compound in its beak, which creates an imbalance in its position of equilibrium. This causes it to oscillate.

Heat engines usually work by extracting heat once there is a temperature gradient available in the system and using it to perform work. Another good example is the internal combustion engine. It extracts heat from the explosion of the burning fuels and uses it to power the car.

Explanation:

Also known as sustainable design, this approach integrates the building life-cycle with each green practice employed with a design-purpose to create a synergy among the practices used. ... The essence of green building is an optimization of one or more of these principles.

Answer:

The answers are in the explanation. The pH is 5.91

Explanation:

The CH3NH2 reacts with HCl as follows:

CH3NH2 + HCl → CH3NH3⁺ + Cl⁻

When 200mL of HCl are added, the moles of CH3NH2 and HCl are reacting completely producing CH3NH3+ and Cl-. That means the species present are:

no H+. All reacted

yes H2O. Because the water is present in the solutions of HCl and CH3NH2

yes Cl-. Is a product of the reaction

Yes CH3NH2. Is consumed in the reaction but comes from the equilibrium of CH3NH3+

yes CH3NH3+. Is the other product of the reaction. MAJOR SPECIES

When 300.00mL of HCl are added, 100mL are in excess:

yes H+. Is in excess: H+ + Cl- = HCl in water. MAJOR SPECIES. Determine the pH of the solution.

yes H2O. Is present because the reactants are diluted.  

yes Cl-. Is a product of reaction and comes from HCl.

Yes CH3NH2. The reactant is over but comes from the equilibrium of CH3NH3+

yes no CH3NH3+. Yes. Is a product and remains despite HCl is in excess.

To find the pH:

At equivalence point the ion that determines pH is CH3NH3+. Its concentration is:

0.100L * (0.200mol/L) = 0.0200 moles / 0.300L = 0.0667M CH3NH3+

The equilibrium of CH3NH3+ is:

Ka = Kw/kb = 1x10-14/4.4x10-4 = 2.273x10-11 = [H+] [CH3NH2] / [CH3NH3+]

As both [H+] [CH3NH2] comes from the same equilibrium:

[H+] =  [CH3NH2] = X

2.273x10-11 = [X] [X] / [0.0667M]

1.5159x10-12 = X²

X = 1.23x10-6M = [H+]

As pH = -log [H+]

pH = 5.91

The pH at the equivalent point for this titration is "5.91".

\(CH_3NH_2 = 0.200\ M\\\\ \text{volume} = 100.0\ mL = 0.100\ L\\\\HCl = 0.100\ M\\\\\)

We must now quantify the pH well at the equivalence point.

We know that even at the point of equivalence, moles of acid and moles of the base are equivalent. As such, first, we must calculate the number of moles of the given base.

Calculating the Moles in \(CH_3NH_2 = 0.200\ M \times 0.100\ L = 0.0200\ moles\)

Calculating the Moles in \(HCl = 0.0200 \ moles\)

Calculating the volume of \(HCl\):

\(\to \text{Molarity} = \frac{ \text{moles}}{\text{volume \ (L)}} \\\\\to \text{Volume} = \frac{\text{moles}}{\text{molarity}}\\\\\)

                \(= \frac{0.0200 \ moles}{ 0.100\ M}\\\\= 0.200 \ L\\\\= 200 \ mL\\\\\)

Calculating the reaction among the acid and base:

\(CH_3NH_2 + HCl \longrightarrow CH_3NH_3^{+} + Cl^-\)

\(0.0200 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 0.0200 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 0.0200\)

Therefore the conjugate acid of the bases exists at the standard solution.

Then we must calculate the new molar mass of \(CH_3NH_3^+\).

Total volume\(= 100 + 200 = 300\ mL = 0.300\ L\)

\([CH_3NH_3^+] = \frac{0.0200\ mole}{ 0.300\ L}= 0.0667\ M\)

Using the ICE table

\(CH_3NH_3^+ + H_2O \longrightarrow CH_3NH_2 + H_3O^+\)

\(I \ \ \ \ \ \ \ \ \ \ 0.0667 \ \ \ \ \ \ \ \ \ 0\ \ \ \ \ \ \ \ \ 0\\\\C\ \ \ \ \ \ \ \ -x\ \ \ \ \ \ \ \ +x \ \ \ \ \ \ \ \ +x\\\\E \ \ \ \ \ \ \ \ \ \ \ \ 0.0667-x \ \ \ \ \ \ \ \ \ \ \ \ +x \ \ \ \ \ \ \ \ \ \ \ \+x\\\\\to Ka = \frac{[CH_3NH_2] [H_3O^+] }{[CH_3NH_3^+]}\)

Calculating \(K_a\) from \(K_b\)

\(\to K_a \times K_b = 1\times 10^{-14}\\\\\to K_a = \frac{1\times 10^{-14}}{4.4\times 10^{-4}} = 2.27\times 10^{-11}\\\\\)

                           \(= 2.27\times 10^{-11} \\\\= x\times \frac{x}{(0.0667-x)}\)

The x in the 0.0667-x can be ignored since the Ka value is just too small and it also does not follow the five percent criteria.

\(\to 2.27 \times 10^{-11} \times 0.0667 = x_2\\\\\to x_2 = 1.515\times 10^{-12}\\\\\to x = 1.23\times 10^{-6}\ M\\\\\to [H_3O^+] = x = 1.23\times 10^{-6}\ M\\\\\)

We have the formula to calculate pH.

\(\to pH = - \log [H_3O^+] = - \log 1.23\times 10^{-6}\ M= 5.91\)

The pH at the equivalent point for this titration is "5.91".

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Answer:

A

Explanation:

Answer:

Resistance of copper = 1.54 * 10^18 Ohms

Explanation:

Given the following data;

Length of copper, L = 3 kilometers to meters = 3 * 1000 = 3000 m

Resistivity, P = 1.7 * 10^8 Ωm

Diameter = 0.65 millimeters to meters = 0.65/1000 = 0.00065 m

\( Radius, r = \frac {diameter}{2} \)

\( Radius = \frac {0.00065}{2} \)

Radius = 0.000325 m

To find the resistance;

Mathematically, resistance is given by the formula;

\( Resistance = P \frac {L}{A} \)

Where;

First of all, we would find the cross-sectional area of copper.

Area of circle = πr²

Substituting into the equation, we have;

Area  = 3.142 * (0.000325)²

Area = 3.142 * 1.05625 × 10^-7

Area = 3.32 × 10^-7 m²

Now, to find the resistance of copper;

\( Resistance = 1.7 * 10^{8} \frac {3000}{3.32 * 10^{-7}} \)

\( Resistance = 1.7 * 10^{8} * 903614.46 \)

Resistance = 1.54 * 10^18 Ohms