Shares of Apple (AAPL) for the last five years are collected. Returns for Apple's stock were 37.7% for 2014, -4.6% for 2015, 10% for 2016, 46.1% for 2017 and -6.8% for 2018. The variance is how much for this data? (a) 690.1 (b) 890.1 (c) 750.5 (d) 472.04 Ans. (4) Shares of Apple (AAPL) for the last five years are collected. Returns for Apple's stock were 37.7% for 2014, -4.6% for 2015, 10% for 2016, 46.1% for 2017 and -6.8 % for 2018. The standard deviation is how much for this data? (a) 21.73% (b) 59.5% (c) 75.5% (d) 41.8%

Draw the IV graph for a MOSFET in deletion mode, with a drain-source current of 1.2 mA. Indicate this value on the graph.In order to draw the IV graph for a MOSFET in deletion mode, with a drain source current of 1.2 mA, we can follow these steps:

MOSFET stands for Metal Oxide Semiconductor Field Effect Transistor. It is one of the main types of field-effect transistor (FET) used in electronic circuits.MOSFET has 3 main terminals- Drain (D), Source (S) and Gate (G).The main features of a field-effect transistor (FET) are:It is a three-terminal unipolar device, which means that the current is carried by either electrons or holes.The controlling mechanism of the device is the electric field applied across a dielectric between the gate and the channel.There are two types of FET- Junction FET (JFET) and Metal Oxide Semiconductor FET (MOSFET).The main advantages of a MOSFET are:It offers a high input impedance.

It requires no input current.It offers a faster switching speed.It offers a large input signal range.The IV graph for a MOSFET in deletion mode with a drain-source current of 1.2 mA is shown below:IV Graph of MOSFET in Deletion Mode with a drain-source current of 1.2 mAThe graph indicates that the current remains constant at a value of 1.2 mA for a wide range of values of voltage between drain and source. Therefore, this MOSFET can be used in situations that require a constant current flow of 1.2 mA.

To know more about current visit:

https://brainly.com/question/32332387

#SPJ11

MacPherson strut combines shock absorber and coil spring. Repairs may include replacing the strut assembly, coil spring, mount or bushings.

A MacPherson strut is a type of automotive suspension system that combines a shock absorber and a coil spring into a single unit. It consists of a piston inside a cylinder filled with oil and gas, with the piston connected to a shaft that extends to the top of the strut assembly. The bottom of the strut is connected to the steering knuckle, while the top is connected to the vehicle body. When the vehicle encounters bumps or rough road surfaces, the strut compresses and rebounds, absorbing the shock and dissipating the energy. The coil spring provides support and helps to maintain the ride height of the vehicle.

If a MacPherson strut shock absorber fails, it can cause problems with the vehicle's handling and ride comfort. Signs of a failing strut can include excessive bouncing or swaying, a bumpy or rough ride, or uneven tire wear. To repair a MacPherson strut shock absorber, the first step is to diagnose the problem and identify the specific component that needs to be repaired or replaced. This may involve performing a visual inspection, road test, or other diagnostic procedures.

Common repairs for a MacPherson strut shock absorber may include replacing the strut assembly, replacing the coil spring, or replacing the mount or bushings. To replace the strut assembly, the vehicle must be raised and supported, the old strut removed, and the new strut installed and torqued to the manufacturer's specifications. If the coil spring needs to be replaced, a specialized spring compressor tool may be required to safely compress and remove the old spring and install the new one.

It is important to follow the manufacturer's recommended procedures and safety guidelines when repairing or replacing a MacPherson strut shock absorber. If you are not comfortable performing these repairs yourself, it is recommended that you seek the assistance of a qualified mechanic.

know more about shock absorber here: brainly.com/question/15000745

#SPJ11

The f(4) using is found using newton's interpolating polynomials of order 4.

function y=CL10_Exercise(part)

%% Input

% part: string for part a,b,c,d

%

%% Output

% y value of the underlying function at x=4

%

%% Write your code here

X=[1,2,3,5,6];

Y=[15,8,5.5,30,52];

x=4;

y=1;

switch part

case 'a'

%% Newton interpolation (Order 4)

a=X;

b=Y;

%x=input('Enter x: ');

[m,n]=size(a);

fx=0;

for i=1:n

%_____________Calculating Dividing Difference_____________________

s=0;

for j=1:i

p=1;

for k=1:i %Denominator part product

if(k~=j)

p=p*(a(j)-a(k));

end

end

s=s+b(j)/p; %summation f(x)/product

end

%_________________________________________________________________

p=1;

for j=1:i-1 %coefficient part of f[...]

p=p.*(x-a(j));

end

fx=fx+s.*p; %Polynomial!

end

y=fx;

case 'b'

%% not-a-knot spline

case 'c'

%% clamped spline

case 'd'

%% Hermite spline

end

end

Hence, the f(4) using is found using newton's interpolating polynomials of order 4.

To learn more about interpolation click here:

brainly.com/question/18768845

#SPJ4

The dimensions that are a part of the primary dimension of the English System is Length (ft), Temperature (R) and Mass (lbm). These are also known as English units.

English units, which combined the Anglo-Saxon and Roman systems of measure, were the units of measurement used in England up until 1826 (when they were replaced by Imperial ones). English units have been subject to a variety of standards over time, in various locations, and for various purposes.

The phrase "English units" can be used in an unclear way, it is occasionally used to refer to both the descendant system of United States customary units and the units of the descendant Imperial system.

To learn more on English system, here:

https://brainly.com/question/30391603

#SPJ4

Answer:

please mark me as BRAINLIEST

Explanation:

There are so many software packages available to develop HTML. The software packages can be grouped into two main categories: text-based (or code-based) editors.

...

WYSIWYG editors

Macromedia Dreamweaver.

Microsoft FrontPage.

Adobe GoLive.

Answer:

steel pipes

Explanation:

The structure is heavy, and steel piles can carry heavy loads.

Answer:

a pneumatic or electric power

Explanation:

The primary energy source for the controller in a typical control system is either "a pneumatic or electric power."

This is because a typical control system has majorly four elements which include the following:

1. Sensor: this calculates the controlled variable

2. Controller: this receives and process inputs from the sensor to the controlled device as output

3. Controlled device: this tweak the controlled variable

4. Source of energy: this is the energy used to power the control system. It could be a pneumatic or electric power

Answer:

Information technology is important in our lives because it helps to deal with every day's dynamic things. Technology offers various tools to boost development and to exchange information. Both these things are the objective of IT to make tasks easier and to solve many problems.

Explanation:

1. increase This due to increase in the pore volume.

2.increase . This is due to the fact that more liquid phase will be present at the firing.

3. Increase. This increase is because of the fact that clay on cooling forms glass.Thus, gaining more strength as the liquid phase formed fills in pore volume.

4. Increase, Rate of corrosion depends upon the surface area exposed.Since, upon vitrification surface area would increase, therefore corrosion increases.

5. Increase , glass has higher thermal conductivity than the pores it fills.

The forces in members BC and FG of the loaded symmetrical truss can be determined by using one section and two equations, each of which contains only one of the two unknowns.

What is Force?
A force is an effect that can alter an object's motion according to physics. A force can cause an object with mass to accelerate when it changes its velocity, for as when it moves away from rest. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction. It is calculated using the newton SI unit (N). Force is denoted by the letter F. (formerly P).
The net force acting on an object is equal to the rate at which its momentum varies over time, according to Newton's second law in its original formulation.



The forces in members BC and FG of the loaded symmetrical truss can be determined by using one section and two equations, each of which contains only one of the two unknowns. By using the section, the force in member BC can be determined. By using the equation, the force in member FG can be determined.

To learn more about force
https://brainly.com/question/12970081
#SPJ4

Note that the isentropic efficiency of the compressor is 0.68 and the entropy generation rate in the compressor is 0.119 kW/K.

We can use the following thermodynamic relations to solve this problem:

h2s = h1 + (s2s - s1) (isentropic process)

h2 = h1 + (q - w) (actual process)

ηisentropic = (h2s - h1) / (h2 - h1) = (T2s - T1) / (T2 - T1)

where h is the enthalpy, s is the entropy, q is the heat added, w is the work done, and ηisentropic is the isentropic efficiency.

To calculate the entropy generation rate (Sgen) in the compressor, we can use the following relation:

Sgen = q/Tc - q/Th

where Tc is the average surface temperature of the compressor and Th is the temperature of the compressed fluid at the compressor outlet.

Given:

P1 = 140 kPa

T1 = -10°C = 263.15 K

P2 = 1200 kPa

T2 = 50°C = 323.15 K

W = 150 kW

Qloss = 40 kW

Tc = 20°C = 293.15 K

Using the refrigerant tables, we can determine the enthalpies and entropies at the compressor inlet and outlet:

At the compressor inlet:

h1 = 187.67 kJ/kg

s1 = 0.9396 kJ/kg·K

At the compressor outlet:

h2 = 307.23 kJ/kg

s2 = 1.1058 kJ/kg·K

To calculate h2s, we assume an isentropic process, so s2s = s1 and P2s = P1. Using the refrigerant tables, we find:

h2s = 259.62 kJ/kg

a) The isentropic efficiency can be calculated as:

ηisentropic = (h2s - h1) / (h2 - h1) = (259.62 - 187.67) / (307.23 - 187.67) = 0.661 or 66.1%

b) The heat added to the compressor can be calculated as:

q = W + Qloss = 150 + 40 = 190 kW

The temperature at the compressor outlet can be determined from the refrigerant tables at P2 = 1200 kPa:

h2f = 210.13 kJ/kg

The final temperature can be calculated as:

T2f = T1 + (h2f - h1) / cp = 59.43°C

The entropy generation rate can be calculated as:

Sgen = q/Tc - q/Th = q(1/Tc - 1/Th) = 190(1/293.15 - 1/332.58) = 1.57 kW/K

Learn more about compressor at:

https://brainly.com/question/30656501

#SPJ1

Plastic and composite fenders require different bolts because fenders combine energy absorption and deflection qualities.

Plastics are defined as a class of substances, either artificial or natural, that can be molded while still soft and subsequently hardened to maintain the desired shape. The thickness grade for plastic sheeting most frequently used is 6 mil. This is 0.006 inch, or six thousandths of an inch.

Fasteners are regarded as tools that are used in a variety of applications to form a solid junction. While some fasteners are permanently linked, the majority allow joints to be broken apart or withdrawn without harming the pieces that were joined.

Thus, plastic and composite fenders require different bolts because fenders combine energy absorption and deflection qualities.

To learn more about plastic, refer to the link below:

https://brainly.com/question/28580291

#SPJ1

Answer: A leak in the system

Explanation:

Engineers take periodic site measurements to verify the scale conveys true information

measureants is the amount or extent of something ascertained through use of calibrated instrument called measuring instrument. When measurements are done on site it is called site measurements.

Engineers use the site measurements to scale their sketches hence to ensure the scale is always correct periodic measurements should be taken.

On-site measurements value and sketch measurement value gives the scale which  is the ratio, should be maintained always

Read more on scale here: https://brainly.com/question/26467371

According to the video Making Stuff: Smaller, silicon transistors can be made smaller because they are materials.

Silicon is a material that can be crafted and manipulated into tiny transistors using advanced manufacturing techniques. These techniques include photolithography, which uses light to etch patterns onto a silicon wafer, and chemical vapor deposition, which adds layers of materials to create the transistors. Silicon transistors work by acting as mechanical switches that can control the flow of electrons through a circuit.

As the size of the transistor decreases, the distance that electrons have to travel between different parts of the circuit also decreases. This means that smaller transistors can switch on and off more quickly, allowing for faster and more efficient processing of data. The metallic properties of silicon also play a role in its ability to be made into smaller transistors.

By adding small amounts of other elements to the silicon, such as boron or phosphorus, it can be made to conduct electricity more or less easily, creating the necessary properties for a transistor. In conclusion, the ability to make silicon transistors smaller is due to their material properties, their ability to be crafted using advanced manufacturing techniques, and their function as mechanical switches.

know more about silicon transistors here:

https://brainly.com/question/30334259

#SPJ11

20

Explanation:

Technician A says that primary vibration is created by slight differences in the inertia of the pistons between top dead center and bottom dead center. Technician B says that secondary vibration is a strong low-frequency vibration caused by the movement of the piston traveling up and down the cylinder. Who is correct? O A. Neither Technician A nor B OB. Technician B O C. Both Technicians A and B D. Technician A​

Answer:

A pan (baking)

Newspaper

Cloth

(colored) Water

A binder (to elevate one side of the pan)

Explanation:

hope this helps:)

Asbestos may cause cancer by inhalation. Moreover, asbestos is also known to cause different respiratory diseases (especially asbestosis) by affecting the mucosa of the bronchi.

Learn more in:

https://brainly.com/question/8853025?referrer=searchResults

Answer:

False

Explanation:

(A) The presence of time t stated in the components causes the flow to be unstable. 

(b) Because none of the three velocity components are 0, the flow is three-dimensional.

(c) The acceleration vector is \(\frac{dV}{dt} = -4(1 + 4t^2)i - 4t(1 - t^3)j + 0k\).

(d) Any one of the unit vectors normal to the acceleration is k.

What is an acceleration vector?
The velocity change rate is referred to as the average acceleration vector. It is moving in the v-direction of velocity change. As t approaches 0, the average acceleration can only go as far as the instantaneous acceleration.

Solution Explained for (c):

(c) Evaluate, by laborious differentiation, the acceleration vector at
(x, y, z) =(-1, +1, 0).

\(\frac{dU}{dt} = \frac{\alpha u}{\alpha t} + u \frac{\alpha u}{\alpha x} + v \frac{\alpha u}{\alpha y} + w \frac{\alpha u}{\alpha z} = 4x + 4tx(4t) - 2t^2y(0) + 4xz(0) = 4x + 16t^2x\)

\(\frac{dv}{dt} = \frac{\alpha v}{\alpha t} + u \frac{\alpha v}{\alpha x} + v \frac{\alpha v}{\alpha y} + w \frac{\alpha v}{\alpha z} = 4ty + 4tx(0) - 2t^2y(-2t^2) + 4xz(0) = -4ty + 4t^4y\)

\(\frac{dw}{dt} = \frac{\alpha w}{\alpha t} + u \frac{\alpha w}{\alpha x} + v \frac{\alpha w}{\alpha y} + w \frac{\alpha w}{\alpha z} = 0 + 4tx(4z) - 2t^2y(0) + 4xz(4x) = 16txz + 16x^2z\)

or, \(\frac{dV}{dt} = (4x + 16t^2x)i + (-4ty + 4t^4y)j + (16txz + 16x^2z)\)

at (x, y, z) = (-1, +1, 0), we obtain \(\frac{dV}{dt} = -4(1 + 4t^2)i - 4t(1 - t^3)j + 0k\)

To learn more about an acceleration vector, use the link given
https://brainly.com/question/15046860
#SPJ1

Both technicians may be correct depending on the situation and the type of brake components being cleaned with either denatured alcohol or brake fluid.

Denatured alcohol is a common solvent used to clean brake components as it effectively removes brake dust, dirt, and grime. It is also less harmful to the environment and safer to use than other harsh solvents. However, it may not be effective in removing certain types of brake fluid or oil-based contaminants.

On the other hand, clean brake fluid can also be used to clean brake components as it is specifically designed to lubricate and protect brake parts. It may be more effective in removing brake fluid or oil-based contaminants, but it can be more expensive and may not be as readily available as denatured alcohol.

Ultimately, the choice of solvent for cleaning brake components depends on the specific situation and the type of contaminants that need to be removed. A knowledgeable technician will be able to determine the best solvent to use based on their experience and expertise.

Learn more about  brake fluid here:

brainly.com/question/2989238

#SPJ11

Technician A is correct when cleaning brake components in denatured alcohol.

Using denatured alcohol is an appropriate method for cleaning brake components, as it effectively removes dirt, grease, and contaminants without damaging the components.

On the other hand, Technician B is not correct, as cleaning brake components in clean brake fluid is not recommended because it may not effectively remove all contaminants and can cause issues with the braking system.

Learn more about brake components: https://brainly.com/question/15502604

#SPJ11

Answer:

20368.917N

Explanation:

Frictional force (F) is the product of the Coefficient of friction and the normal reaction.

F = μN

Coefficient of friction, μ = 0.2

Normal reaction = MgCosθ

Mass, m = 12 tonnes = 12 * 1000 = 12000 kg

N = 12000 * 9.8 * cos30

N = 101844.58

F = 0.2 * 101844.58

F = 20368.917N

The group of stakeholders that place constraints on project work such as requiring permits to be secured, that work is built to code, or that safety standards are met include Customers, Government Agencies. Thus, the correct options are A and D.

Stakeholders are individuals or groups who can impact or be impacted by a project, initiative, or business. Internal and external stakeholders, customers, suppliers, regulators, employees, shareholders, and competitors are all types of stakeholders.Types of stakeholdersCustomersCustomers are stakeholders who buy or use the product or service of a company. They can also provide feedback and requests for new products.Project sponsors They're the people who have requested the project and are financially responsible for it. The sponsor is the one who can stop, restart, or change the project's scope.Top managementThe highest level of management in an organization is top management. These executives are in charge of the company's overall goals and strategies.Government agenciesThe government has an important role to play in the development of the project. The government agency may establish laws or regulations that must be followed. If a company fails to follow these rules, it may face legal consequences.Project managersThey're in charge of the day-to-day operations of a project. They must ensure that the project is completed on schedule, within budget, and according to the specifications.

Learn more about stakeholders here :-

https://brainly.com/question/30241824

#SPJ11

Answer:

This is not a clear indication of the hot zone as the information of the radioactivity of the background is not provided clearly.

Explanation:

According to IAEA as well as NRCP, the hot area is defined on the basis of the radioactivity reading it shows instead of contrast or comparative reading from the background. The value of radiation activity which will be required to declare an area as hot zone is if it is greater than 0.1 mSv/h or \(1.5091\times 10^{29} kg^{-1} s^{-1}\).

FDM is a manufacturing process that creates objects layer by layer by depositing molten thermoplastic material.

The length of time it takes to create a four-colored ball with a diameter using FDM is determined by a variety of variables.

These variables are layer thickness, nozzle width, extrudate deposition rate, stage movement time per layer, and the time it takes to change between any two materials.

The ball's construction time can be calculated using these variables.

The following formula can be used to calculate the ball's production time:

Volume of Sphere = 4/3 * pi * r³

Volume of the sphere = 4/3 x pi x 2²³

Volume of the sphere = 33.51 cm³

The total volume of the ball will be 33.51 cm³.

We'll use this to figure out how long it will take to manufacture this ball.

We can use the following formula:

Time = (Layer height x Layer width x 60) / Extrudate Deposition Rate x Stage Movement Time x Fill ratio x Volume of sphere

Time = (0.15 x 0.4 x 60) / 6 x 1 x 0.3 x 33.51The time it takes to fabricate the ball is calculated as follows:

Time = 5.13 hours or 308 minutes

it will take around 308 minutes to fabricate a 4 colored ball in diameter using FDM,

assuming a layer thickness of 0.15mm, a width of 0.4mm, and the extrudate being deposited at a rate of 6 cubic mm per second.

Additionally, it is supposed that the stage movement time is 1 minute per layer, and it takes 1 minute to switch between any two materials.

Finally, assume the support structure has a volumetric fill ratio of 30%.

To know more about thermoplastic visit:

https://brainly.com/question/33512414

#SPJ11

The provided C code demonstrates the equivalent functionality of the given assembly code.

The equivalent C code for the given assembly code would be:

// Assuming the following declarations:

// long long *a;

// long long *b;

// long long *t;

// movq (%rax),%rdx

// *a = *t;

*a = *t;

// a = b;

a = b;

// a = *t;

a = *t;

// *a = t;

*a = (long long)t;

In the C code above, the assignment statements mimic the functionality of the corresponding assembly instructions. The movq instruction copies the value from memory at the address stored in rax to the register rdx. In C, this is represented by assigning the value of *t to *a. The subsequent statements assign the values of b and *t to a, respectively. The last statement assigns the value of t to *a. Note that the cast (long long) is used to convert the pointer t to a long long value before assigning it to *a.

Learn more about assembly code visit:

https://brainly.com/question/31590404

#SPJ11

When two particles come close to each other, they experience forces such as electrostatic forces, van der Waals forces, and magnetic forces. The correct option is option C: "zero, minimized."

The particles tend to form a bond when these forces are balanced, which means that the net force acting on them is zero.

Know more about the van der Waals forces

https://brainly.com/question/20314452

#SPJ11