what are the importance of crystallography in geology

Step 1: Calculate the cross-sectional area (A) of the extruded aluminum beam using the uniform wall thickness (t = 1/8 in) and the beam's dimensions.

Step 2: Determine the first moment of area (Q) for each of the five points indicated.

Step 3: Calculate the shear flow (q) at each point using the formula q = VQ/It, where V is the vertical shear (2 kips) and I is the moment of inertia.

Step 4: Calculate the shear stress (τ) at each point using the formula τ = q/A.

By following these steps, you can determine the shear flow and shear stress at each of the five points on the extruded aluminum beam.

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the following RAID volume types provide fault tolerance in the event of a single storage device failure is b. striping with parity and c. mirroring

RAID, or "Redundant Arrays of Independent Disks", is a technique that combines multiple disks instead of using a single disk to improve performance, data redundancy, or both. The term was coined in 1987 by David Patterson, Garth A. Gibson, and Randy Katz at the University of California, Berkeley.

While data redundancy provides additional storage space, it also contributes to hard drive reliability. This means that if your hard drive fails, if the same data is also backed up on another hard drive, you can retrieve the data and continue working. On the other hand, without RAID technology, the loss of one disk can affect the entire data if the data is only spread across multiple disks.

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The Thevenin voltage of the circuit is 9.75V.

To find the Thevenin voltage of the circuit, follow these steps:

Step 1: Identify the load resistor and remove it from the circuit.

In this circuit, there is no specific load resistor, so assume that we want to find the Thevenin voltage across the two terminals that are not connected to the 12V voltage source.

Step 2: Calculate the equivalent resistance of the circuit with the load resistor removed.

To find the equivalent resistance, we can use a combination of series and parallel resistor rules.

First, simplify the two parallel resistors R4 and R5 by using the formula:

1/Rp = 1/R4 + 1/R5

1/Rp = 1/2.2KΩ + 1/2.2KΩ

1/Rp = 2/2.2KΩ

Rp = 1.1KΩ

Now simplify the three resistors R1, R2, and Rp in series using the formula:

Rtotal = R1 + R2 + Rp

Rtotal = 100Ω + 47KΩ + 1.1KΩ

Rtotal = 48.2KΩ

Therefore, the equivalent resistance of the circuit with the load resistor removed is 48.2KΩ.

Step 3: Calculate the open-circuit voltage across the load resistor terminals.

To calculate the Thevenin voltage, determine the voltage across the two terminals that are not connected to the 12V voltage source. Do this by using voltage divider rule, where:

Vload = Vtotal × Rload / (Rtotal + Rload)

In this case, since load resistor is removed, set Rload to infinity, which means there is no current flowing through Rload and Vload is equal to the open-circuit voltage Vtotal.

Therefore, Vtotal = 12V × R2 / (R1 + R2 + Rp)

Vtotal = 12V × 47KΩ / (100Ω + 47KΩ + 1.1KΩ)

Vtotal = 9.75V

So the Thevenin voltage of the circuit is 9.75V.

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The general lighting load for a two-story office building that measures 125 feet by 150 feet is 112, 500 sq ft.

Lighting loads are the energy used to power electric lights and they make up nearly a third of US commercial building energy use.

Lighting load = n(LW)

where;

For one story building, = 3

For two story building, n = 6

Lighting load = 6 x 125 x 150 = 112, 500 sq ft.

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Answer:

  A. Oil changes

Explanation:

It depends on the car and its usage and environment. Usually oil is supposed to be changed every few months, more often if the car is driven a lot. Coolant changes may be indicated as seasons change, so will generally occur less frequently than oil changes.

Tire and brake replacement depend on usage and driving habits. Some owners may never have to replace either one, if they trade their car every year or two. Folks who drive with their foot on the brake pedal may have to replace brakes relatively often.

The most frequent task is generally oil changes.

Answer:

Answer:

when car vroom it go electric

Explanation:

i think then it goes to some spinny thing that spins and make the electric and the electic spins the spinny thing and the smoke comes outside the back

Answer:

Most cylinder wear occurs at the top of ring travel.

Besides the properties of the material composing the fiber in a fiber-reinforced composite, the length of the fiber is also the most important factor for producing a significant improvement in strength.

Fiber-reinforced composite refers to any building material made up of two or more constituent materials with individually different physical properties. Fiber-reinforced composite has a combination of properties that create a superior material ideal for multiple construction applications. In addition, the fiber's length is also a vital property of fiber-reinforced composite which reinforces long fiber composites with improved strengths.

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The response reaches 95% of the steady-state value after approximately 4 time constants, so it takes about 4.8 seconds for the response to reach steady-state.

To obtain the steady-state response, we can take the Laplace transform of the differential equation:

6sX(s) + 5X(s) = 20U(s)

where U(s) is the Laplace transform of the input signal u(t), which is the unit step function. Solving for X(s), we get:

X(s) = 20/(6s + 5)U(s)

To find the steady-state response, we can take the inverse Laplace transform of X(s), which gives:

x(t) = 20/6(1 - e^(-5/6t))u(t)

To estimate how long it will take the response to reach steady-state, we can look at the time constant of the system, which is given by τ = 6/5 = 1.2 seconds. The response reaches 95% of the steady-state value after approximately 4 time constants, so it takes about 4.8 seconds for the response to reach steady-state.

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The single addition to the automobile that gave the internal combustion engine the edge over steam and electric power was the development of the electric starter motor.

In the early days of automobiles, internal combustion engines required manual cranking to start. This process was physically demanding and potentially dangerous, as it involved hand-cranking a heavy flywheel to initiate the engine's combustion process. This limitation made internal combustion engines less convenient and less popular compared to steam and electric power, which offered easier and safer starting mechanisms.

However, with the invention of the electric starter motor, pioneered by Charles F. Kettering and introduced by Cadillac in 1912, the process of starting an internal combustion engine became significantly simpler. The electric starter motor enabled drivers to start their vehicles with just a turn of a key or a push of a button. This innovation eliminated the physical effort and risk associated with manual cranking, making internal combustion engines more accessible and user-friendly.

The convenience and reliability offered by the electric starter motor quickly made internal combustion engines the preferred choice for automobile manufacturers. The widespread adoption of this technology eventually led to the dominance of internal combustion engines in the automotive industry, as they became more efficient, powerful, and easier to start compared to steam and electric power.

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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.

Answer: C) Collective action problem

Explanation:

The blank in the given question can be filled with the term "portal frame construction".It is a structural steel construction technique that involves the use of framed structural steel members to create large structures.

The key characteristic of this method is the repetitive arrangement of bays, which are framed sections or units that form the structural framework of the building. In portal frame construction, each bay consists of a vertical column on each side, connected by horizontal beams at the top and bottom. This creates a rigid framework that can support the loads and stresses imposed on the structure. The bays are repeated and spaced apart to form the desired size and layout of the building.

Portal frame construction is commonly used for industrial buildings, warehouses, and other structures that require large open spaces and flexible interior layouts. The method provides structural stability, efficient use of materials, and ease of construction. It is often preferred for its cost-effectiveness, speed of erection, and adaptability to various architectural designs.

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Complying with DSEAR involves:

Assessing risks. ...

Preventing or controlling risks. ...

Control measures. ...

Mitigation. ...

Preparing emergency plans and procedures. ...

Providing information, instruction and training for employees. ...

Places where explosive atmospheres may occur ('ATEX' requirements)

hse uk

Under ideal conditions, a truck with air brakes going 55 MPH would require a stopping distance of 344 feet.

Stopping distance is the total distance covered by a vehicle from the time the driver perceives the need to stop to the point where the vehicle comes to a complete halt.

The stopping distance is determined by the vehicle's speed, brakes, tires, and roadway surface conditions.

Stopping distance can be determined by adding together the thinking distance and the braking distance. The thinking distance is the distance traveled by the vehicle before the driver can react.

The braking distance is the distance required by the vehicle to come to a halt once the driver applies the brakes.

Under ideal conditions, a truck with air brakes going 55 MPH would require a stopping distance of 344 feet.

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Answer:a

Ieieksdjd snsnsnsnsksks

The diameter, bolt M27 is known to be 3.0mm in pitch and 41mm across flats.

This is a term that is often seen as the Major diameter. The diameter of a bolt is known to be a kind of a Shank diameter which is said to be often shown or expressed in the unit called millimeters in regards to Metric bolts.

This is so due to the  fact that it is almost the same as the Major or Thread diameter.

Therefore, The diameter, bolt M27 is known to be 3.0mm in pitch and 41mm across flats.

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Explanation:

for 40hz

since they are in series they will have the same amper

so R=30ohm

C=30F

for 50Hz

R=25

C=25

Answer:

b

Explanation:

Answer:

shear strength = 2682.31 Ib/ft^2

Explanation:

major principal stress = 100 Ib / in2

minor principal stress = 20 Ib/in2

Normal stress = 3000 Ib/ft2

Determine the shear strength when direct shear test is performed

To resolve this we will apply the coulomb failure criteria relationship between major and minor principal stress a

for direct shear test

use Mohr Coulomb criteria relation between normal stress and shear stress

Shear strength when normal strength is 3000 Ib/ft  = 2682.31 Ib/ft^2

attached below is the detailed solution

If the architect insists on exceeding the recommended glass percentage in ASHRAE Std. 90.1, the issues to explain to the owner are: Pros - increased daylight, better views, improved aesthetics. Cons - increased energy consumption, reduced privacy, higher cost.

If the architect insisted on having more glass than the prescriptive percentage guidelines in ASHRAE Std. 90.1, the issues that he should explain to the owner are as follows:Pros:1. Increased daylight: The first advantage of using more glass is that it provides more daylighting, which is better for indoor environments.2. Better views: More glass allows for better views of the outdoors. This can be important in commercial settings where people may be looking out of windows to take a break from work.3. Improved aesthetics: The use of glass can make a building look more modern and sleek, which can be a selling point for owners.Cons:1. Increased energy consumption: One of the significant downsides to using more glass is that it can lead to increased energy consumption. Glass is not a good insulator, so more of it can lead to higher heating and cooling costs.2. Reduced privacy: Another issue with using more glass is that it can reduce privacy. This may be a problem in areas where people need to have private conversations or work in an environment where they don't want others to see them.3. More expensive: Finally, using more glass is likely to be more expensive than using other materials. Glass can be fragile, and it requires specialized installation, so it can be costly to use.

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Answer:

most people are doing engineering

Explanation:

me too

Answer:

Explanation:

Answer: With crumple zones at the front and back of most cars, they absorb much of the energy (and force) in a crash by folding in on itself much like an accordion. ... As Newton's second law explains force = Mass x Acceleration this delay reduces the force that drivers and passengers feel in a crash.Sep 30, 2020

Answer:

6.65 kPa.

- 73.3 kPa.

Explanation:

Without much ado let's jump right into the solution to the problem given. It is given that the pressure = 50 mmHg and the solution to this question is to write out the value of the pressure in kpa and kPa gauge.

P(a) = 0.05m × 133 kN/m³ = 6.65 kPa.

The P(gauge) =( [ 0.05 × 13.6 × 9810] ÷ 1000 ) - 80 = - 73.3 kPa.

Answer:

c. hazards

Explanation:

The safety engineer uses a logging and monitoring system to track hazards from a project's start to its finish.

For Part A, the velocity of peg A when x = 1.2 m can be calculated using the equation v = s/t, where s is the distance traveled and t is the time taken. Since the link is moving at a constant speed of 10 m/s, the time taken to travel 1.2 m is 1.2/10 = 0.12 s.

Therefore, the velocity of peg A when x = 1.2 m is v = 10/0.12 = 83.33 m/s.

For Part B, the acceleration of peg A when x = 1.2 m can be calculated using the equation a = (v2 - v1)/t, where v2 and v1 are the velocities of the peg at the two different points and t is the time taken to travel between them. Since the link is moving at a constant speed of 10 m/s, the time taken to travel 1.2 m is 0.12 s.

Therefore, the acceleration of peg A when x = 1.2 m is a = (83.332 - 102)/0.12 = -833.33 m/s2.

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In HTML, the attribute used to specify that an input field must be filled out is "required" (option A). This attribute ensures that the user must provide a value for the input field before submitting the form, promoting proper form completion and data validation.

If the required attribute is not satisfied, the form will not be submitted, and the user will receive a prompt to fill in the necessary information. The attribute used to specify that an input field must be filled out in HTML is the "required" attribute. This attribute is used in conjunction with the "input" tag to indicate that the user must fill out the specified field before submitting the form. When the user tries to submit the form without filling out the required field, an error message will appear prompting them to fill out the required field. The "validate" and "mandatory" attributes are not used in HTML to achieve this functionality. While the term "input_required" could potentially be used as a custom attribute, it is not a standard attribute in HTML. Therefore, the correct answer is A) required.

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