Consider two very large parallel plates with diffuse, grey surfaces. The top surface is at T = 1000K and has an emissivity of 1. The bottom plate has a temperature of 500K and an emissivity of 0.8.
(a) Determine the irradiation and radiosity for the top surface.
(b) Determine the radiosity of the lower surface.
(c) What is the net radiation exchange between the plates?

Answers

Answer 1

(a) The irradiation on the top surface is given by σ(T^4) = 5.67 x 10^-8 x (1000)^4 = 56.7 kW/m^2. The radiosity of the top surface is equal to its emissivity times its irradiation, so J1 = 1 x 56.7 = 56.7 kW/m^2.

(b) The radiosity of the bottom surface is J2 = 0.8 x σ(T^4) = 45.4 kW/m^2. (c) The net radiation exchange is given by J1 - J2 = 11.3 kW/m^2, which represents the amount of heat transferred per unit area from the top surface to the bottom surface. This heat transfer occurs due to the temperature difference and the exchange of radiation between the two surfaces. In summary, the top surface receives an irradiation of 56.7 kW/m^2 and has a radiosity of 56.7 kW/m^2. The bottom surface has a radiosity of 45.4 kW/m^2. The net radiation exchange between the plates is 11.3 kW/m^2, which represents the amount of heat transferred per unit area from the top surface to the bottom surface due to the temperature difference and the exchange of radiation.

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Related Questions

When mechanical work is done on a system, an increase normally occurs in its
O temperature.
O internal energy.
O both of these
O neither of these

Answers

An rise in temperature and internal energy often happens when a system is subjected to mechanical action.

It is impossible to directly quantify the internal energy of systems that are more complicated than a perfect gas. The system's internal energy is still inversely related to its temperature, though. Therefore, by keeping an eye on how the system's temperature varies, we can track changes in the system's internal energy. We may infer that the system's internal energy has grown whenever the system's temperature rises.

For the time being, let's assume that a thermometer set in a beaker of water on a hot plate registers 73.5°C, as indicated in the diagram below. Only the system's condition at that precise instant may be described by this measurement.

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A binary tree has L leaves and K nodes, each with two children. What is the relation of L and K ?

Option

L = K -1
L = 2K + 1
L = K - 1
There is no fixed relation between L and K

Answers

K=2*L-1 is the relationship between the number of nodes (K) and leaves (L). Therefore, L and k do not always have a stable relationship.

Number of internal nodes for L leaves = L - 1

So total nodes = 2L – 1

The following relation applies for a k-ary tree where each node has k offspring or none at all: L = (k-1)*n + 1.

where n represents the number of internal nodes and L represents the number of leaf nodes.

Every internal node will have K children since the k tree is fully developed.

A pointer to the topmost node of the tree, sometimes referred to as the "root," serves as the representation of a binary tree. The root's value is NULL if the tree is empty. The following components are present in each node of a binary tree:

Pointer to left kid in data

to the right-hand kid

Basic Binary Tree Operation:

adding a new element.

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When is Environmental Impact Assessment required?

Answers

Environmental Impact Assessment (EIA) is often required for significant development projects such as road construction, building construction, and industrial facility construction in order to analyze and minimize any environmental repercussions.

What is Environmental Impact Assessment?

It is to be noted that the process of determining how a project or activity will affect the environment is known as environmental impact assessment.

It assists individuals in ensuring that the project will not hurt animals, plants, or natural resources. This manner, we can be sure that the things we construct or do won't affect the world.

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A supplementary grounding electrode is required when the only grounding electrode available is: __________

Answers

A supplementary grounding electrode is required when the only grounding electrode available is a metal underground water pipe.

What is grounding electrode?

A grounding electrode is a device or conductor that provides a direct electrical connection to the earth. It is used as a reference point for electrical systems to establish a zero potential, or ground, and provide a path for electrical current in the event of a fault.

Examples of grounding electrodes include metal underground water pipes, driven rods, plates, and underground networks of electrodes. These are required for safety and protection of electrical equipment and to limit the voltage to ground during normal operation and fault conditions.

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how to make hypertension thermo fisher with thermal nuclear propulsion powered by 100 thermal nuclear reactor

Answers

Hypertension therapy and thermal nuclear propulsion are two distinct fields and they are not related. Hypertension therapy refers to the treatment and management of high blood pressure, while thermal nuclear propulsion refers to the use of nuclear energy to power vehicles, such as spacecraft.

What is the reactor about?

Thermal nuclear propulsion technology is still under development and is not yet available for commercial use. Building a thermal nuclear propulsion system would require significant resources, including the development of a suitable reactor and the design and construction of a spacecraft capable of withstanding the intense heat and radiation generated by the reactor.

It would also require compliance with a wide range of safety, environmental and regulatory standards.

Therefore, As for hypertension therapy, it is typically managed through a combination of lifestyle changes, such as diet and exercise, and medication. The specific treatment plan will depend on the individual patient's blood pressure level, overall health, and any other health conditions they may have. It is important to consult a doctor or healthcare professional for personalized treatment recommendations.

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125 psig is equivalent to

A. 14.696 psia.

B. 135 psia.

C. 139.7 psia.

D. 147.7 psia.

Answers

A pressure of 139.7 psia is equal to 125 psig. The pressure measured by a gauge, PSI Gauge, is equal to PSI Absolute + 1 atmosphere pressure. Assume that the atmosphere has a standard atmospheric pressure of 14.7 PSI at sea level.

What is PSIG versus PSIA?

PSIA, or pounds per square inch absolute, stands for. As opposed to zero or the absolute vacuum, absolute pressure is pressure. On engineering documents or P&IDs, PSIA may be used. PSIG Defined: The term "PSIG" refers to pounds per square inch gauge.

Is PSI the same as PSIA?

The word PSIA refers to the absolute pressure in PSI, which includes the atmospheric pressure. Another name for absolute pressure is "total pressure.

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Classify each of the structures as statically determinate, statically indeterminate, or unstable. If indeterminate, specify the degree of indeterminacy. The supports or connections are to be assumed as stated.

Answers

The structure a) is indeterminate. The structures b, c, and d are statically indeterminate.

We know that if

r = 3n (Statically determinate)

r > 3n (Statically indeterminate)

r < 3 n (unstable)

r \geq 3n (unstable if reactions are concurrent or parallel)

where r = no.of reactions

n = no of parts

a) r = 2+2+1 = 5

n = 1, 3n = 3x1 = 3

5 > 3

Indeterminate upto 5 - 3 = 2 degrees

b) Unstable as all reactions are parallel

c) r = 3

n = 1 , 3(1) = 3

r = 3n

Statically Determinate

d) r = 2+2+2 = 6

n =2 , 3(2) = 6

r = 3n

Statically Determinate

e) Unstable as the reactions are concurrent meeting at common point

Frames can be classified by cutting closed loops and finding reactions

At each cutaway section three unknown forces are generated

b) 8 cuts are required generating 8x3 = 24 forces and 3 members

r = 24 +2+2+3 = 31

n = 3. r = 3(3) = 9

31 - 9 = 22

Indeterminate upto 22 degrees

c) 6 cuts are required generating 6x3 = 18 forces and 4 members

r = 18 + 3 + 3 = 24

n = 4 , 3(4) =12

24 - 12 = 12

Statically Indeterminate upto 12 degrees

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For the frame and loading shown, determine the components of all forces acting on member ABE when P = 13.8 kN. (Round the final answers to two decimal places.)

Answers

When examining a force's geometric representation or its algebraic equivalent, the components of a force can be viewed as horizontal and vertical changes.

The vertical and horizontal forces that combine to create the resulting force are represented by a force's components. A force can be broken down into two parts that are either inclined or perpendicular to one another. Two components are referred to as rectangular components when they are perpendicular to one another and as inclined components when they are inclined toward one another. Force has two parts: magnitude and direction. When examining a force's geometric representation or its algebraic equivalent, the components of a force can be viewed as horizontal and vertical changes.

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What happens to the generated voltage, if a more powerful magnet is used?

1) The generated voltage gets higher
2) the generated voltage gets lower
3) the amount of voltage generated stay the same

Answers

1)The generated voltage gets higher

The bridge girder G of a bascule bridge is raised and lowered using the drive mechanism shown. If the hydraulic cylinder AB shortens at a constant rate of 0.15 m/s, determine the angular velocity of the bridge girder at the instant theta 0= 60°

Answers

According to the question, The bridge girder's angle of rotation at theta 0 = 60° is 0.18 rad/s.

What exactly is velocity?

Velocity is the direction at which an item is moving and serves as a measure of the rate at which its location is changing as seen from a certain point of view and as measured by a particular unit of time (for example, 60 km/h northbound). In kinematics, the field of classical mechanics that deals with the motion of objects, velocity is a basic idea. A physical vector quantity called velocity . It must have both a magnitude and a direction in order to be defined. Speed is the scalar absolute value (magnitude) of velocity; it is a coherent derived unit which quantity is measured in m/s (m/s or m/s1) in the SI (metric system).

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A bar having the cross section shown has been formed by securely bonding brass and aluminum stock. Taking h=9 mm and using the data given below, determine the largest permissible bending moment when the composite bar is bent about a horizontal axis. Brass h Aluminium 30 mm 30 min Aluminum Brass . Modulus of elasticity 70 GPa 105 GPa Allowable stress 100 MPa 160 MPa
The largest permissible bending moment is____ KN m

Answers

According to the question, the largest permissible bending moment is 1382.5 KN m.

What is bending moment?
Bending moment
is a mechanical force that causes a bending or flexing effect on a structural element such as a beam, resulting in the creation of a moment or torque about the element's neutral axis. It is calculated based on the internal forces acting on the element, such as the weight of the beam and the force of the load applied to it. Bending moment can be positive or negative, depending on the direction of the force and the location of the neutral axis.

M = (h×A×E×σ_allowable)/6

M = ((9mm×30mm×70GPa×100MPa)+(9mm×30mm×105GPa×160MPa))/6

M = 1382.5 KN m

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2.35 Calculate Vo and Io in the circuit of Fig. 2.99

Answers

Vo and Io in the circuit is v^0=32V And I^0=0.8 A

Step by step explanation:

Given circuit:
Resultant equivalent resistance is                                        
R^ e q=(700||30)+(20||5)
=21+4
R^ e q=25
Total current=v/R^ e q
I=200/25
I=8A

Therefore ,Apply nodal analysis at v^ 1
v^ 0=v^1
200-V0/70+ 200-v^ 0/30=8
6000-30v^0+14000-70v^0/2100=8
20000-100v^0/2100=8
=20000-100v^0=16800
=100v^0=3200
v^0=3200/100
v^0=32V            

Apply nodal at V^ 2.
I^0=V^0-200/30+v^0/5
I^0=32-200/30+32/5
I^0=-168/30+32/5
I^0=-5.6+6.4
I^0=0.8 A


What Does Equivalent Resistance Mean?

An equivalent resistance is defined in physics as the sum of the resistances of the resistors connected in a circuit. Resistors can be wired in series or parallel. Assume that the three resistors are R1, R2, and R3.

If you connect these three resistors in series, the equivalent resistance is given by

Re = R1 + R2 + R3        

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Consider the following piece of C code:
for (j = 2; j < 1000; j++)
D[j] = D[j − 1] + D[j − 2];
The MIPS code corresponding to the above fragment is:
addiu $s2, $zero, 8000
addiu $s1, $zero, 16
loop: l.d $f0, -16($s1)
l.d $f2, -8($s1)
add.d $f4, $f0, $f2
s.d $f4, 0($s1)
addiu $s1, $s1, 8
bne $s1, $s2, loop
Re-write the assembly code above so that the loop is unrolled by 4 iterations.

Answers

CPU SS: A two-core superscalar processor with two function units that can handle out-of-order issues (FUs). On each core, only one thread can be active at once. CPU MT.

a fine-grained multithreaded processor that enables simultaneous execution of instructions from two threads (i.e., there are two functional units), but only one thread's worth of instructions can be issued at a time. CPU SMT: A SMT processor that has two functional units and supports running instructions from two threads simultaneously. Instructions from either or both threads may be sent to execute on any cycle. A high-level, all-purpose programming language is the C language. It offers a simple, reliable, and effective interface for system programming.

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List the point coordinates for all atoms that are associated with the FCC unit cell (See Figure a) (b Figure 3.1 Face centered cubic crystal structure, (a) a hard sphere unit cell representation, (b) a reduced-sphere unit cell, and (c) an aggregate of many atoms.

Answers

The point coordinates for all atoms that are associated with the FCC unit  cell, i.e. fig b are:

bottom face: (1,0,0) (1,1,0) (0,1,0) (1/2,1/2,0)

Tope face: (0,0,1) (1,0,1) (1,1,1) (0,0,1) (1/2,1/2,1)

front and back face: (1/2,1,1/2) (1/2,0,1/2)

Left and Right face: (0,1/2,1/2) (1,1/2,1/2)

What is FCC unit  cell?

Atoms are found in an FCC unit cell at the centre of each cube's face and at each of the crystal lattice's four corners. Only half of each atom, which is located at the face centre, belongs to one particular cell and is shared by two adjacent unit cells.

A crystal lattice in an FCC unit cell contains atoms in each corner. Additionally, every cube face has an atom in the centre of it. Two next-to-one another unit cells share this face-center atom. A unit cell only contains 12 of each atom.

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bernoulli equation cannot be applied when the flow is
1) Rotational
2) steady

Answers

Note that the Bernoulli equation cannot be applied when the flow is "Rotational" (Option 1)

What is the Bernoulli equation?

Bernoulli's equation formula represents a relationship between a fluid's pressure, kinetic energy, and gravitational potential energy in a container.

The Bernoulli equation assumes that the fluid flow is irrotational, meaning there is no net fluid flow around a closed loop. Rotational flow, also known as turbulent flow, is characterized by eddies and vortices and cannot be described using the Bernoulli equation.

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elivery Execution Knowledge Check Question 1 of 8. When you walk into the station at the end of your route, what should you do? Check in with your DSP and being any undeliverable packages back to the Amazon Retum to Station desk O leave the undeliverable packages with your OSP then go off duty You don't have to return to the station at the end of your day Sign out of your device and love Mark for foto up

Answers

Answer:

ur hhbkiegtbckdj you and your family a very merry merry

before making a major repair technicians must evacuate an appliance ___

Answers

Answer:containing more then 200 pounds of R-410A to which of the following levels

Explanation:10 inches of Hg vacuum

Before making a major repair, technicians must evacuate an appliance's refrigerant.

What is appliance refrigerant?

Refrigerants are chemicals that absorb heat and transfer it between different parts of an appliance, and they are typically contained within a closed system of pipes and coils.

We have,

Before making a major repair, technicians must evacuate an appliance's refrigerant.

This is particularly true for appliances that use refrigerants, such as refrigerators, air conditioners, and heat pumps.

During a major repair, such as replacing a compressor or repairing a leak in the refrigerant system, the refrigerant must be safely removed from the system before work can begin.

This is typically done using specialized equipment that can capture and store the refrigerant for safe disposal or recycling.

Evacuating the refrigerant helps to prevent the release of harmful chemicals into the atmosphere, and is an important step in ensuring the safety and effectiveness of appliance repairs.

After the repair is complete, the refrigerant can be recharged and the appliance can be returned to service.

Thus,

The technicians must evacuate an appliance's refrigerant before making a major repair.

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A target ha the coordinate of (0,1). Nachie and Ihwari are both in a battle to ee who ha the mot accurate launcher. After hooting their bean bag 10 time, aiming for the target, they take the average of where their bag landed. Nachie' launched bean bag on average landed at (0. 05, 0. 08). Ihmari' launched bean bag on average landed at (0. 08, 1). Who' launcher wa more accurate (hint: who' bean bag were cloer to the target center on average)?

Answers

Answer:

Explanation:

To determine which launcher was more accurate, we can compare the average distance of the bean bags from the target center.

We can use the distance formula to calculate the distance between two points:

d = sqrt((x2-x1)^2 + (y2-y1)^2)

where d is the distance, (x1, y1) is the first point, and (x2, y2) is the second point.

For Nachie's bean bags, the average distance from the target center is:

d = sqrt((0.05-0)^2 + (0.08-1)^2) = sqrt(0.0025 + 0.0184) = sqrt(0.02)

For Ihwari's bean bags, the average distance from the target center is:

d = sqrt((0.08-0)^2 + (1-1)^2) = sqrt(0.0064 + 0) = sqrt(0.0064) = 0.08

Since Ihwari's bean bags were closer to the target center on average, it can be concluded that Ihwari's launcher is more accurate than Nachie's.

Question 3:
Change the background color of the page to light-blue (#99ecft) when clicked on the text
that says "Yes". If there is a background color set already, change it to none when clicked
on "No"

Answers

Thank you I really like the color

ariah is walking on a boat that is sailing in the ocean. at a certain point the boat encounters a current.

Answers

Answer:42.6 km/h

Khan said so

The magnitude of the force will depend on the speed and direction of the current, as well as the size and shape of the boat.

The force will also cause the boat to experience a change in its velocity, which will affect the motion of the boat and the passengers on board. When a boat encounters a current, the boat will experience a force due to the current. This force will act on the boat in the direction of the current and will cause the boat to move in the direction of the current. The magnitude of the force will depend on the speed and direction of the current, as well as the size and shape of the boat. The force will also cause the boat to experience a change in its acceleration, which will affect the motion of the boat and the passengers on board. The acceleration of the boat will be equal to the force divided by the mass of the boat. The acceleration will cause the boat to change its velocity, which will cause the boat to move in the direction of the current. The magnitude of the velocity change will depend on the magnitude of the acceleration and the time over which the acceleration is applied.

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Which of the following refers to the process in which engineers complete and repeat a sequence of steps to come closer to the project goal?

Answers

Answer:The process in which engineers iterate through a sequence of steps in order to progressively approach the project goal is referred to as an iterative process.Explanation:

The process in question is referred to as the iterative design process. Engineers utilize this method by completing and repeating a sequence of steps in order to continually improve and refine their designs as they work towards achieving the project goal. This approach allows for flexibility and adaptability in the design process, as engineers can make adjustments and modifications based on feedback and testing, ultimately leading to a more successful outcome.

© 2022. Grand Canyon University. All Rights Reserved.APA Activity 2: Citing PracticeCreate a reference page by citing the following sources in correct APA format. You may use your text or the GCU Library website to help you, but do not use citation generators.•A textbook: The second edition of Psychology and Your Life by Robert S. Feldman written in 2013. The publishing city is New York, New York published from McGraw Hill Companies.•Snickers commercial https://youtu.be/2rF_FRCd_LA •PBS Frontline special League of Denial •The document found at this address:http://www.eia.gov/forecasts/aeo/er/pdf/0383er(2013).pdf•The movie Silver Linings Playbook•The episode of Friends titled: The One After Joey and Rachel Kiss•The 7th edition of the APA Manual

Answers

Using APA reference style, the references is attached below from Feldman, R. S. (2013) to American Psychology Association (2020)

What is APA Reference Style

APA reference style is a style of citing sources used by the American Psychological Association. It is primarily used in the social sciences and includes guidelines for citing sources both within the text of a document and in the reference list at the end of the document. The guidelines provide a consistent way of citing sources to make it easier for readers to identify and locate the sources cited in a document.

In the given problem, if we need to write the reference using APA style, it will take this format below

Reference Page:

Feldman, R. S. (2013). Psychology and your life (2nd ed.). New York, NY: McGraw Hill Companies.

Frontline. (n.d.). League of denial. Retrieved from https://www.pbs.org/wgbh/frontline/film/league-of-denial/

Friends. (2004). The one after Joey and Rachel kiss [Television series episode]. In D. Crane, & M. Kauffman (Executive producers), Friends. Burbank, CA: Warner Bros. Television.

Silver Linings Playbook. (2012). [Motion Picture]. United States: The Weinstein Company.

U.S. Energy Information Administration. (2013). Annual energy outlook 2013 with projections to 2040. Retrieved from http://www.eia.gov/forecasts/aeo/er/pdf/0383er(2013).pdf

Snickers. (2013, April 2). You’re not you when you’re hungry [Video file]. Retrieved from https://youtu.be/2rF_FRCd_LA

American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed.). doi:10.1037/0000165-000

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Determine the friction drag on the bar required to overcome the resistance of the paint if the force F lifts the bar at 3 m/s. Take rho = 920 kg/m^3 and v = 42(10^-6) m^2/s.

Answers

Start by drawing a free-body schematic of the bucket that is at the end of the string. The net force is upwards since the bucket is at the bottom of the circle (inwards).

Keep in mind that for there to be a net upward (inward) force, the tension force must be larger than the force of gravity. Also see that Fgrav is pointing in the opposite direction from Ftens, which is pointing in the direction of the net force. As a result, the equation is as follows:

Ftens - Fgrav = Fnet

The formulas for Fgrav (m•g) and Fnet (m•v2/R) can be swapped into this equation to solve for tension:

Fnet + Fgrav + Ftens = m

2.50 kg + 3.0 m/s + 0.500 m + 2.50 kg + 9.8 m/s

= v2/R + m•g

N = 69.5 Ftens

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Why is possessing an ASE certification important to one's future as a technician?
Select one:
O a. Leads to better employment opportunities
O b. Allows the technician to transport raw materials to factories
O C.
Technicians gain firsthand experience in communicating effectively with customers in
person
O d. Leads to apprenticeship opportunities

Answers

Note that possessing an ASE Certification is crucial because; " Leads to better employment opportunities." (Option D)

What is an ASE Certification?

ASE certification, commonly known as Automobile Service Excellence, is given to an automotive mechanic who has finished the necessary training and acquired their Automotive Service Excellence Certified Master Technicians criteria.

There are 58 ASE certification examinations available, covering nearly every facet of the automobile repair and service sector.

The National Institute for Automotive Service Excellence (ASE) offers four levels of certification. They are:

ASE entry-level certification, Professional technician certification, Master technician certification, and ASE advanced level specialist certification.

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Ethernet standard 1000BASE-SX uses SMF and has a distance limitation of 5km. What is the bandwidth capacity of 1000BASE-SX?
Question 2 options:
A)
10Mbps
B)
100Mbps
C)
1Gbps
D)
100Gbps
E)
1000Gbps

Answers

Answer:C

Explanation:

customer instructions are key to a perfect delivery. true or false

Answers

It is true that following client instructions is essential for a flawless delivery. We need 8–15 seconds for eye-lead to use REPS and Checks to remove distractions.

For the first query, "Delivery," the topic is how to satisfy clients by delivering what they have requested. Therefore, by according to the customer's instructions, we can accomplish a flawless delivery.

For the second question, REPS and check means identifying the risks, removing them, making plans, and looking for space. It also means checking for yourself, the risks, the space, and the speed.

To prevent accidents while driving, the REPS and check procedure is employed as a safety measurement. The eye-lead varies depending on the route followed, but it typically lasts between 8 and 15 seconds.

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During a construction project, engineers used explosives to excavate 140 feet of tunnel into a mountain. But because of time constraints and environmental concerns, they brought in a tunnel boring machine (tbm) to excavate the rest of the tunnel. The data table lists some observations an engineer made about the length of the tunnel after the tbm was introduced. How much of the tunnel was completed 26 days after the tbm was introduced?.

Answers

The engineer observed that the tunnel was 460 feet long 26 days after the tbm was introduced. Therefore, the tunnel was completed 460 feet - 140 feet = 320 feet after the tbm was introduced.

What is tunnel?
A tunnel is an underground or underwater passageway, typically constructed for transportation purposes. Tunnels are typically used to bypass obstacles such as mountains, rivers, or bodies of water, or to provide a secure route for transportation of goods and people. Tunnels may also be used for mining, research, or military purposes. Tunnels can be constructed using a variety of materials, including steel, reinforced concrete, rock, earth and soil. The length of a tunnel varies from a few metres to several kilometres. When constructing a tunnel, safety is of paramount importance. Special engineering techniques are used to ensure the stability of the tunnel and its construction is closely monitored and regulated. Tunnels are designed to be resistant to weather, vibration, fire, and other environmental factors.

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The two blocks shown are originally at rest. Neglecting the masses of the pulleys and the effect of friction in the pulleys and between the blocks and the inclines, determine (a) the acceleration of each block, (b) the tension in the cable.

Answers

The acceleration of block A is 8.4949 and block B is 4.2475 ft/s² while the tension is the cable is 121.168 lb.

What is tension?

When there are two forces acting on the ends of a cable, rope, wire, or string, it is said to be under tension. The cable has a one-direction pull along its entire length, pulling equally in both directions on objects at either end.

Tension can also be used to describe the forces that are acting on both ends of the two elements. In other words, tension's polar opposite is compression.

Physical objects must exert some force on one another in order to make contact with one another. Depending on the kind of object, each of these contact forces will be unique.

Take a section about the rope near block B and using the show datum

SB + (SB - SA) = l

2SB  - SA = l

2SB  - SA = 0

2aB - aA = 0

aA = 2aB

Take FBD of block-A

(Upward+) ∑Fₓ = mAaA

T - W[tex]_A[/tex]sin20° = mAaA

T - 200sin20° = (W[tex]_A[/tex]/g)(2aB)

T = 200sin20° + (W[tex]_A[/tex]/g)(2aB)

Take FBD of block-B;

(Downward+) ∑Fₓ = mBaB

W[tex]_B[/tex]cos20° - 2T = mAaA

300cos20° - 2(200sin20° + (W[tex]_A[/tex]/g)(2aB)) = (W[tex]_B[/tex]/g)(a[tex]_B[/tex])

300cos20° - 2(200sin20° + (200/32.2)(2aB)) = (300/32.2)(a[tex]_B[/tex])

a[tex]_B[/tex] = 4.2475 ft/s²

Acceleration of A is given as;

⇒ aA = 2aB

⇒ aA = 8.4949 ft/s²

Tension is given as;

T = 200sin20° + (200/32.2)(2(4.2475))

T = 121.168 lb

Thus, the acceleration of block A is 8.4949 and block B is 4.2475 ft/s² while the tension is the cable is 121.168 lb.

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Give a short fragment of Java code that uses the progression classes from Section 2.2.3 to find the eighth value of a Fibonacci progression that starts with 2 and 2 as its first two valuesCode and explain how it works. If you copy and paste from the pictures I attach I will report you

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It is feasible to create code that installs Java and sets the Java Home to point to the Java installation location using knowledge of the computational language of JAVA.

In Java, there are several ways to copy elements from an array, including manually copying elements with a loop, making a copy of the array, and using Arrays. Java's copy Of() function or System. array Copy() can be used to begin moving elements between arrays. ERROR: The directory specified for JAVA HOME is invalid. "C: Program FilesJavajre7bin" is the value for JAVA HOME. Please modify your environment's JAVA HOME setting to correspond to where your Java installation is located I tried and worked on ANT. 1. launch cmd. 2. Enter "Mn -version". 3. On May 15, 2013, Apache Ant(TM) version 1.9.1 was compiled.

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A four-bar linkage is shown in the figure (the ground �link� OC is considered the fourth bar). If the drive link OA has a counterclockwise angular velocity ?0 = 14.6 rad/s, determine the angular velocities of links AB and BC. The angular velocities are positive if counterclockwise, negative if clockwise.

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Wab = 2.41 rad/s and Wbc = 6.53 rad/s if the angular velocity are positive in a clockwise direction and negative in a anticlockwise direction.

Va/b = Va - Vb

Va = Va/b + Vb

Va = Wo*A

= 14.6 * 50

= 730 mm/s

we know that

Wab=125/sin24 = Wbc=110/sin76 = 730/sin80

Wab = 2.41 rad/s position/ counter clock wise

Wbc = 6.53 rad/s position/counter clock wise

Every point on an object revolving on an axis experiences the same angular velocity. Any point's tangential velocity varies with its separation from the rotational axis. The angular velocity unit is rad/s.

The direction of angular velocity, in the right-hand rule meaning, can be thought of as being along the rotational axis.

The link between angular velocity and the rate of change of angular displacement

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