A thin flat plate (L=0.657m, A=0.250 m^2, k=237 W/m.K , mc=3,171 J/K, E=0-7) is suspended vertically in quiescent air (T=296K , k=0.026 W/m.k) the plate cools from both surfaces by a combination of natural convection and radiation heat transfer. At a given instant in time a type-T thermocouple mounted on the plate to record the surface temperature yields an output voltage e0= 3.699mV the reference junction is maintained at 10 C. Assume the plate temperature is approximately uniform at any given time. The surroundings are extensive and at the air temperature. At given time an empirical correlation for the average Nusselt number yields NuL= 94.3.
'
1- Determine the instantaneous plate temperature (to the nearest C)
'
2- Calculate the natural convection heat transfer coefficient (W/m^2.K)
'
3- Evaluate the radiation heat transfer coefficient (W/m^2.K)
'
4- Approximate the instantaneous rate of change of the plate temperature (K/s)

In Stokes flow, the fluid velocity is proportional to the forces acting on the fluid and the fluid is assumed to be viscous and incompressible. The fluid velocity near a rotating sphere in Stokes flow can be determined using the equations of fluid dynamics.

Kinematic reversibility is a property of Stokes flow, which states that the fluid flow is symmetric with respect to time reversal. This means that if the fluid velocity is recorded at a certain time, then the same velocity field will be obtained if time is reversed and the flow is replayed in the reverse direction.

When a sphere is rotating near a wall, the flow of fluid around the sphere creates a velocity field that pushes the sphere away from the wall. This flow can be considered as the fluid being pushed away from the sphere and towards the wall. If the flow is time-reversed, the fluid velocity field would be the same, but the direction of the velocity would be reversed. This means that the fluid would be drawn towards the sphere and away from the wall, pulling the sphere towards the wall.

Therefore, based on the property of kinematic reversibility in Stokes flow, the rotating sphere near a wall will experience a force that could either push it away from the wall or draw it towards the wall, depending on the direction of the flow.

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Answer:

20% of the critical value. Determine (a) the damping factor, (b) the

Explanation:

Answer:

(a) L ≈ 0.397 H

(b) Z ≈ 52.5 kOhm

(c) θ ≈ 0.025 radians

Step-by-step explanation:

To calculate the values for an RL low pass filter with a cut-off frequency of 4 kHz and using an R-value of 10 kOhm, we can use the following formulas:

(a) L = R / (2 * π * f_c)

(b) Z = √(R^2 + (2 * π * f)^2)

(c) θ = atan((2 * π * f) / R)

Given:

R = 10 kOhm

f = 25 kHz

f_c = 4 kHz

(a) L = R / (2 * π * f_c)

L = 10 kOhm / (2 * π * 4 kHz)

L ≈ 0.397 H

(b) Z = √(R^2 + (2 * π * f)^2)

Z = √((10 kOhm)^2 + (2 * π * 25 kHz)^2)

Z ≈ 52.5 kOhm

(c) θ = atan((2 * π * f) / R)

θ = atan((2 * π * 25 kHz) / 10 kOhm)

θ ≈ 0.025 radians

Therefore, the calculated values are:

(a) L ≈ 0.397 H

(b) Z ≈ 52.5 kOhm

(c) θ ≈ 0.025 radians

Answer: Also known as an Ethernet adapter, a network interface card (NIC) is a chip or circuit board that generally comes preinstalled on a computer or device.

Explanation: lmk if im right

Answer:

Look at the load capacity chart in the cab

Explanation:

A crane can be defined as a large, tall metallic machine or equipment that is designed with a long horizontal arm (jib) used for the lifting and movement of very heavy objects through the air. They're usually designed to be operated by a human operator, who typically uses a remote controller and a beam to control the direction of movement of the crane.

Due to the fact that cranes are used for lifting and moving very heavy objects, they are powered by an internal combustion engine and electric motors.

Furthermore, all cranes have the maximum capacity of load they're able to lift at a particular point in time. In order to determine the rated or gross capacity of a crane and maintain safe operation, it is important to check its load capacity chart. The actual load a crane can lift is its net capacity and it must not be exceeded at any time, so as to avoid structural failure or overturning of the crane.

Hence, the best way to find the load capacity of a crane is to look at the load capacity chart in the cab.

The load can include rigging components, hooks, blocks, and other lifting equipment that is considered part of the load. The maximum load capacity of the crane is about 18 metric tons.

Hence the option C look at the chart is correct.

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Answer:

Americans is great

Answer:

c. hazards

Explanation:

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

The preliminary estimate of the total cost to develop the area for petroleum production is ₱585,000. This is based on a unit method estimate, which is sufficient at this preliminary stage. The estimate includes the cost of machinery, equipment and tooling, direct labor, and indirect labor.

The cost of machinery, equipment and tooling is 1000 hours * ₱5,000/hour = ₱5,000,000.

The cost of direct labor is 2000 hours * ₱300/hour = ₱600,000.

The cost of indirect labor is 500 hours * ₱500/hour = ₱250,000.

The total cost is ₱5,000,000 + ₱600,000 + ₱250,000 = ₱5,850,000.

Since a ±25% estimate is acceptable at this preliminary stage, the actual cost could be anywhere between ₱431,250 and ₱738,750.

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As a site reliability engineer, you are responsible for improving the company's deployment by scaling and automating applications.

As new application versions are ready for production, you ensure that the application gets deployed to different sets of EC2 instances at different times, allowing for a smooth transition. Using AWS CodeDeploy, the option that will allow you to achieve this is the Blue/Green deployment strategy. This approach minimizes downtime and risk by creating separate environments for the current application version (blue) and the new version (green), and gradually transitioning traffic to the new environment as the deployment progresses.

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Answer:

The electric ceiling fan was invented in 1882 by engineer and inventor, Philip Diehl. He had earlier invented an electric sewing machine and adapted the motor from this invention to create the ceiling fan. He called his invention the “Diehl Electric Fan” and it was such a success that he soon had many other people competing with him.

Explanation:

The answer is:

ig..

We are required to explain if it is safe or unsafe to see an increase in traffic, step in and direct traffic to ensure safety.

Therefore, it is encouraged for only traffic officials to direct traffic.

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Answer:

Unsafe

Explanation:

The correct answer to the question is A. case-based reasoning (CBR). This knowledge management (KM) method involves storing past experiences or cases in a knowledge base that can be accessed and reused to solve new problems or make decisions. CBR is an artificial intelligence technique that uses the principles of similarity and analogy to retrieve relevant cases and adapt them to new situations. It is a valuable KM approach because it allows organizations to leverage the collective knowledge and expertise of their employees, and to capture and retain institutional knowledge that might otherwise be lost. CBR can also improve organizational learning, decision-making, and problem-solving by enabling individuals to learn from past experiences and apply this knowledge to new challenges. Overall, CBR is a powerful KM method that can help organizations to optimize their knowledge assets and to continuously improve their operations and performance.

Answer:

Get ready and comfortable.

List all of the tasks you need to accomplish over the next week. .

Next schedule everything.

Get a planner/calender.

Cut those tasks that do not fit into your

An electrical engineer can use Ohm's Law to determine the amperage of the circuit. Ohm's Law states that Voltage (V) = Current (I) x Resistance (R). In this case, the voltage is 110V and the resistance is 11 ohms.

To find the amperage, rearrange the equation as I = V/R. Therefore, the amperage of the circuit is I = 110V / 11 ohms = 10 amps. Ohm's law is a fundamental principle in electrical engineering that describes the relationship between electric current, voltage, and resistance in a circuit. It states that the current passing through a conductor between two points is directly proportional to the voltage across the two points, and inversely proportional to the resistance between them. Mathematically, Ohm's law can be expressed as I = V/R, where I is the current, V is the voltage, and R is the resistance. This simple formula can be used to calculate any one of the three variables given the other two.

Ohm's law is an important concept in electrical engineering and is used extensively in the design and analysis of electrical circuits and systems. It provides a basic understanding of how electricity behaves and helps engineers to design more efficient and effective electrical systems.

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Answer:

Q=I^2Rt

Explanation:

The principle of resistance welding is the Joule heating law where the heat Q is generated depending on three basic factors as expressed in the following formula

Q=I^2Rt

I is the current passing through the metal combination

R is the resistance of the base metals and the contact interfaces

t is the duration/time of the current flow.

Answer: its A

Explanation:

Answer:

Answer:

Dams are massive structures constructed across rivers or streams to store water, control floods, generate hydroelectric power, provide irrigation, and regulate water supply. Here are five functions of a dam:

1- Water storage: One of the primary functions of a dam is to store water in a reservoir, which can be used for various purposes such as irrigation, industrial processes, and drinking water supply.

2- Flood control: Dams can control the flow of water in a river or stream, thereby reducing the risk of floods downstream. During heavy rainfall or snowmelt, the dam can hold back the excess water and release it slowly to prevent downstream flooding.

3- Hydroelectric power generation: Dams can also generate electricity by using the water flow to turn turbines, which powers generators. This is a clean and renewable source of energy that can provide electricity to homes, businesses, and industries.

4- Navigation: Dams can create a navigable channel by regulating the water level, which allows boats and ships to travel upstream and downstream. This can improve transportation and commerce in the region.

5- Recreation: Dams can create recreational opportunities such as boating, fishing, and swimming in the reservoirs and rivers that are created by the dam. This can also provide economic benefits by attracting tourists and visitors to the region.

Answer:

Explanation:

From the information given:

original diameter \(d_o\) = 10 mm

final diameter \(d_f =\) 7.5 mm

Cold work tensile strength of brass = 380 MPa

Recall that;

\(\text {The percentage CW }= \dfrac{\pi (\dfrac{d_o}{2})^2 - \pi(\dfrac{d_f}{2})^2 }{\pi(\dfrac{d_o}{2})^2} \times 100\)

\(\implies \dfrac{\pi (\dfrac{10}{2})^2 - \pi(\dfrac{7.5}{2})^2 }{\pi(\dfrac{10}{2})^2} \times 100\)

\(\implies43.87\% \ CW\)

→ At 43.87% CW, Brass has a tensile strength of around 550 MPa, which is greater than 380 MPa.

→ At 43.87% CW, the ductility is less than 5% EL, As a result, the conditions aren't met.

To achieve 15% EL, 28% CW is allowed at most

i.e

The lower bound cold work = 15%

The upper cold work = 28%

The average = \(\dfrac{15+28}{2}\) = 21.5 CW

Now, after the first drawing, let the final diameter be \(d_o^'\); Then:

\(4.5\% \ CW = \dfrac{\pi (\dfrac{d_o^'}{2})^2 - (\dfrac{7.5}{2})^2}{\pi (\dfrac{d_o^'}{2})^2}\times 100\)

By solving:

\(d_o^'} = 8.46 mm\)

To meet all of the criteria raised by the question, we must first draw a wire with a diameter of 8.46 mm and then 21.5 percent CW on it.

Answer:

I am in Eight Grade

Explanation:

Answer:

Engine

Explanation:

Semi-independent suspension is the most common type of suspension system used on body over frame vehicles.

Semi-independent suspension give the front wheels some individual movement.

This suspension only used in rear wheels.

Thus, the correct option is Semi-independent suspension

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Mediation is the method of conveying elements of space to viewers using cameras. Information transmission from one source to another is referred to as mediation.

Cross-cutting, commonly referred to as parallel editing, is a method used throughout the editing process. It is used to change both time and space. It is therefore simultaneous action taking place in various locations. These areas are typically close together.

The art of cinematography involves recording moving pictures on film or a digital storage medium. The name is derived from three Greek roots: kinesis, which means "movement," photo, which means "light," and graphic, which means "writing," but it was not used until motion pictures were created.

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Answer:

The temperature of the outer wall surface will be closer to the temperature of the surrounding air.

Explanation

Since the outer wall has a convective heat transfer coefficient that is 3 time the one in the inner surface due to the wind, the outer wall will have a temperature closer to the surrounding air's temperature because the heat that flows from the warmer inner room wall will be rapidly conducted away from the surface of the outer wall by the prevailing wind, leaving it with a reduced temperature that will be closer to the temperature of the surrounding air.

It is important to carefully read all of the answer choices before selecting the correct one. In this case, the correct answer is "It allows for the spanning of vast open spaces.

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The principle of corresponding states allows us to relate the critical properties (Pc and Tc) of different substances, enabling the derivation of relationships for a and b in terms of Pc and Tc.

a. The principle of corresponding states states that the reduced variables of a substance at its critical point are the same for all substances.

Using this principle, the relationships for a and b can be derived as follows: a = 0.42748 ˣ (R^2 ˣ Tc²⁵    ) / Pc and b = 0.08664 ˣ (R ˣ Tc) / Pc, where R is the gas constant, Tc is the critical temperature, and Pc is the critical pressure.

b. To predict the molar volume of O2 at 12.4 MPa and 295 K using the equation of state, we substitute the given values of P and T into the equation and solve for v.

c. The comparison with the ideal gas law and compressibility charts/tables will help assess the accuracy of the equation of state in predicting the behavior of O2 at the given conditions.

This will provide insights into any deviations from ideal gas behavior and the suitability of the equation for different ranges of pressure and temperature.

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Before employees perform any servicing or maintenance where the unexpected energization or start-up of the machine or equipment or release of stored energy could cause injury, it shall be used to ensure that the machine or equipment is stopped, isolated from all potentially hazardous energy sources, and locked out.

Title 29 Code of Federal Regulations (CFR) Part 1910.147, the OSHA standard for The Control of Hazardous Energy (Lockout/Tagout), covers the practices and procedures required to shut down machinery or equipment in order to prevent the release of hazardous energy while workers perform servicing and maintenance.

This procedure must be followed to guarantee that all energy sources that could be hazardous have been shut off and that the machinery, apparatus, or system that has to be maintained has been rendered inoperable by lockout or similar measures.

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