which osi layer is responsible for directing data from one LAN to another?
a. Transport layer
b. Network layer
c. Data Link layer
d. Physical layer

Answer:

a) C1 = 3C2

b) C1 = 1 , C2 = -3  

c) \(w = \frac{-x^2}{2} + \frac{y^2}{2} + 3xy + C\)

d) (v.v)T = 0

Explanation:

u = 3x + C1y

v = x + C2y

A) determining all  stagnation points

At The stagnation points : u = 0, v = 0

for all  values of C1 and C2 , C1 = 3C2

B) The coefficients of C1 and C2 so that the flow is potential

C1 = 1 , C2 = -3  

C) Determine the expression of the stream function

\(w = \frac{-x^2}{2} +\frac{y^2}{2} +3xy+ C\)

D) The value of (v.v)T at the point (x,y) = (1,2)

(v.v)T = 0

Attached is the detailed solution

Answer:

YES

Explanation:

NO

;-;

The Geiger-Muller counter and Scintillation detector are two different types of radiation detectors that are used to detect ionizing radiation.

The Geiger-Muller counter is made up of a cathode tube, gas inside the tube, a tungsten wire anode, resistance, a capacitor, and a counter. When ionizing radiation enters the tube, primary ionization occurs, which leads to the ionization of gas atoms.

The electrons that result from this ionization move to the positive electrode.The movement of the electrons from the cathode to the anode generates more ionizations, known as secondary ionizations

. The positively charged ions from the secondary ionizations move to the negative electrode, while the electrons generated from these ionizations move towards the positive electrode. This results in an electrical current that is discharged through pulses that are read through a counter. The number of pulses per second corresponds to the amount of radiation that is detected.

The scintillation detector is made up of a scintillator material, a photomultiplier tube, a photocathode, a dynode, and an anode. When ionizing radiation falls on the scintillator material, it emits low energy light photons. These light photons then fall on the photocathode, which leads to the emission of primary photoelectrons.

These photoelectrons are doubled by increasing voltage electrodes known as dynodes. Finally, the photoelectrons fall on the anode connected to an electronic counter, from which the type of pulse current of the associated signal can be observed. The number of pulses generated per second corresponds to the amount of radiation that is detected.

Learn more about radiation detector at

https://brainly.com/question/30111403

#SPJ11

Relevant features that a model might have to be useful in scientific inquiry include accuracy, simplicity, generalizability, explanatory power, predictive ability, flexibility, interpretability, and computational efficiency.

In scientific inquiry, models play a crucial role in representing and understanding complex phenomena. Several features make a model useful in this context. Firstly, accuracy is essential, as the model should accurately reflect the underlying reality or data it aims to represent. Secondly, simplicity is valuable as it allows for easier comprehension and analysis of the model's structure and assumptions. Generalizability is another relevant feature, indicating the model's ability to apply its findings to broader contexts or new datasets. Furthermore, a model's explanatory power is important, as it helps scientists understand the underlying mechanisms and relationships within a system.

Predictive ability is another key feature, as models that can effectively forecast future outcomes or behavior contribute to scientific understanding and decision-making. Flexibility is relevant because models that can adapt to changing conditions or incorporate new data provide researchers with more robust and up-to-date insights. Interpretability is another crucial aspect, enabling scientists to understand and communicate the meaning and implications of the model's outputs. Lastly, computational efficiency is valuable, as it allows for faster analysis and exploration of different scenarios or parameter settings, enhancing the model's utility for scientific inquiry.

learn more about computational efficiency here: brainly.com/question/8391887

#SPJ11

The percent change in weight of an airliner landing from a cruising altitude of 10 km on a runway at sea level is approximately -0.336%.

To determine the percent change in weight of an airliner landing from a cruising altitude of 10 km on a runway at sea level, we need to calculate the acceleration of gravity at sea level (z = 0) and at the cruising altitude (z = 10,000 m), and then find the percent change between these two values.

1. Calculate the acceleration of gravity at sea level (z = 0):

g₀ = 9.81 - (3.3 × 10⁻⁶) × 0 = 9.81 m/s²

2. Calculate the acceleration of gravity at cruising altitude (z = 10,000 m):

g₁₀₀₀₀ = 9.81 - (3.3 × 10⁻⁶) × 10,000 = 9.81 - 0.033 = 9.777 m/s²

3. Calculate the percent change in acceleration of gravity:

Percent change = (g₁₀₀₀₀ - g₀) / g₀ × 100

Percent change = (9.777 - 9.81) / 9.81 × 100 = -0.336 %

The percent change in weight of an airliner landing from a cruising altitude of 10 km on a runway at sea level is approximately -0.336%. This means that the airliner's weight decreases by about 0.336% as it lands at sea level from a cruising altitude of 10 km.

Find more exercises on calculation percent change;

https://brainly.com/question/17968508

#SPJ1

The rate of power input for this refrigerator is 3.33 kW.

A refrigerator with a COP (Coefficient of Performance) of 3.0 is designed to remove heat from the refrigerated space efficiently. The COP is the ratio of the amount of heat removed from the refrigerated space to the work (power input) done by the refrigerator.

In this case, the heat removal rate is given as 10 kW. To determine the rate of power input, we can use the following formula:

COP = (Heat removal rate) / (Power input)

Rearranging the formula to solve for the power input:

Power input = (Heat removal rate) / COP

By substituting the given values:

Power input = (10 kW) / (3.0)

Power input = 3.33 kW (approx.)

So, the rate of power input for this refrigerator is approximately 3.33 kW. This means that for every 3.33 kW of electrical power supplied to the refrigerator, it is able to remove 10 kW of heat from the refrigerated space. A higher COP indicates a more energy-efficient refrigerator.

know more about Coefficient of Performance here:

https://brainly.com/question/14125608

#SPJ11

Answer:

the force conveyed by the fibers is 947.93 lb-f

Explanation:

Given the data in the question;

V_f = 80% = 0.8

V_m = 1 - V_f = 1 - 0.8 = 0.2

Now,

length of fibre L_f = length of Nylon L_n

V_f = A_f × L_f = 0.8

V_m = A_n × L_n = 0.2

so

V_f/V_m = A_f/A_n = 0.8/0.2

A_f/A_n = 4

now, the strains in fibre is equal to strains in nylon

(P/AE)f = (P/AE)n

P_f/A_fE_f = P_n/A_nE_n

P_f = (A_f/A_n)(E_f/E_n)(P_n)    

P_f = ( 4 )( 131 / 2.8 )(Pn)  

P_f = 187.14Pn

and P_n = Pf / 187.14

Hence

given that P_total = 953 lb-f

P_f + P_n = 953

P_f + ( P_f / 187.14 ) = 953

P_f( 1 + ( 1 / 187.14 ) ) = 953

P_f( 1.00534359 = 953

P_f = 953 / 1.00534359

P_f = 947.93 lb-f

Therefore, the force conveyed by the fibers is 947.93 lb-f

Answer:

22400 volts

Explanation:

According to Ohms law, the resistance can be calculated as;

R=V/I where R is total resistance, V is voltage across the whole circuit and I is the current across the whole circuit.

From the question;

I= 400 A

R= 56 Ω

Applying the formula;

R=V/I

56 =V/400

V= 400*56 =22400 volts

At 1.2mpa pressure and 50c

What is pressure?
By pressing a knife against some fruit, one can see a straightforward illustration of pressure. The surface won't be cut if you press the flat part of the knife against the fruit. The force is dispersed over a wide area (low pressure).

a)Mass flow rate of the refrigerant
Therefore h1= condenser inlet enthalpy =278.28KJ/Kg
saturation temperature at 1.2mpa is 46.29C
Therefore the temperature of the condenser

T2 = 46.29C - 5
T2 = 41.29C

Now,
d)power consumed by compressor W = 3.3KW
Q4 = QL + w = Q4
QL = mR(h1-h2)-W
= 0.0498 x (278.26 - 110.19)-3.3
=5.074KW
Hence refrigerator load is 5.74Kg

(COP)r = 238/53
(Cop) = 4.490

Therefore the above values are the (a) mass flow rate of the refrigerant, b) the refrigerant load, c) the cop, and d) the minimum power input to the compressor for the same refrigeration load.

To learn more about pressure
https://brainly.com/question/13717268
#SPJ4

The EPR (Evaporator Pressure Regulator) valve is responsible for maintaining the desired pressure in the evaporators, which in turn controls the temperature of the refrigerated spaces.

The EPR valve works by modulating the flow of refrigerant into the evaporators, allowing for precise control of the pressure and temperature. It achieves this by sensing the pressure at the outlet of the evaporators and adjusting the valve opening accordingly.

In the case of the commercial refrigeration unit with dual evaporators, one operating at a low temperature and the other at a medium temperature, the EPR valve plays a crucial role in regulating the pressure in each evaporator. It ensures that the evaporators operate at their respective optimal pressures, resulting in efficient cooling performance.

By controlling the pressure, the EPR valve helps to maintain the desired temperature in the refrigerated spaces, preventing excessive cooling or temperature fluctuations. This is important for preserving the quality and safety of the stored products.

Overall, the EPR valve is an essential component in a commercial refrigeration unit with dual evaporators, as it allows for precise pressure control and optimal cooling performance in each evaporator.

Learn more about Evaporator Pressure Regulator here:

https://brainly.com/question/32359094

#SPJ11

Answer:

Carpenter's square

Explanation:

The most common hand tool used to measure or set angles with its application extending to setting angles of roofs and rafters. Another name of a Carpenter's square is a framing square.

Other hand tools that are used to measure angles are;

The dehumidifying coil in a room reduces the humidity of the air. Given the entering and leaving conditions, the bypass factor of the coil needs to be determined.

The bypass factor of a coil is a measure of the portion of the air that bypasses the cooling and dehumidifying process. In this scenario, the entering air has a dry bulb temperature of 27°C and a relative humidity of 50%. The leaving conditions are a dry bulb temperature of 14°C and a wet bulb temperature of 12.5°C.

To calculate the bypass factor, we can use the bypass factor equation:

Bypass Factor = (T2 - T1) / (T3 - T1)

Where:

T1 = Entering air dry bulb temperature = 27°C

T2 = Leaving air dry bulb temperature = 14°C

T3 = Leaving air wet bulb temperature = 12.5°C

Plugging in the values:

Bypass Factor = (14 - 27) / (12.5 - 27)

= -13 / -14.5

= 0.8966

Therefore, the bypass factor of the coil is approximately 0.8966.

For more information on Bypass Factor visit: brainly.com/question/31172833

#SPJ11

Given :

Mass of gasoline , m = 50 kg .

Length of tank , l = 0.9 m.

Breadth of tank , b = 0.5 m .

Relative density of gasoline , R.D = 0.75 .

Density of water , \(\rho_{water}=1000\ kg/m^3\) .

To Find :

The depth of tank .

Solution :

We know ,

\(R.D=\dfrac{\rho_{gasoline}}{\rho_{water}}\\\\\rho_{gasoline}=0.75\times 1000 \ kg/m^3\\\\\rho_{gasoline}=750\ kg/m^3\)

Now , volume of gasoline is :

\(V=\dfrac{m}{\rho_{gasoline}}\\\\V=\dfrac{50}{750}\ m^3\\\\V=\dfrac{1}{15}\ m^3\)

Since , the tank is rectangular , volume is given by :

\(V=l\times b\times h\\\\h=\dfrac{V}{l \times b}\\\\h=\dfrac{1}{15\times 0.9\times 0.5}\ m\\\\h=0.148\ m=14.8\ cm\)

Therefore , the answer in centimetres is 14.8 cm .

Hence , this is the required solution .

Answer:

22 Ω

Explanation:

0) to re=write the given schema;

1) to write common equation of U[V];

2) to calculate the value of the current I₁ [A];

3) to write the common equation of current I [A];

4) to calculate the value of the current I₂₃ [A];

5) to calculate the value of R₃ [Ω] using the common equation of U.

Answer:

C

Explanation:

I believe this should b corretc

Answer:

amen?...............

To address these challenges, various implementation approaches can be used, including single table inheritance, class table inheritance etc. When implementing a superclass/subclass relationship, factors to consider include data redundancy, data integrity, query complexity etc.

Implementing a superclass/subclass relationship in an ER model can lead to challenges such as data redundancy. Storing common attributes in the superclass and subclass-specific attributes can result in duplicated data, which may impact data consistency and maintenance. Complex querying is another challenge, particularly when retrieving data that involves both the superclass and subclasses. Formulating and executing queries that involve multiple tables and relationships can be more intricate and may require advanced querying techniques.

To implement a superclass/subclass relationship, different approaches can be utilized. The single table inheritance approach stores all attributes in a single table, including superclass and subclass-specific attributes. The class table inheritance approach uses separate tables for the superclass and subclasses, connected through primary/foreign key relationships. The shared primary key approach assigns a common primary key to the superclass and each subclass, facilitating data referencing and retrieval.

Learn more about  relationship here;

https://brainly.com/question/30408483

#SPJ11

The questions in the pre-lab assignment focus on various aspects of the experiment, including physical separation techniques, calculation of sample mass, and determination of component percentages.

Step 1: The appropriate physical separation techniques to complete the flowchart could include methods such as filtration, evaporation, and magnetic separation, depending on the specific requirements of the experiment. These techniques are used to separate the different components of the mixture based on their physical properties.

Step 2: To calculate the mass of the sample, one typically weighs the entire mixture before performing any separation steps. This measurement provides the initial mass of the mixture, which serves as a reference for subsequent calculations.

Step 3: The mass of the rice can be determined by isolating the rice component through a suitable separation technique and weighing the collected rice. The difference between the initial mass of the mixture and the mass of the other components will represent the mass of the rice.

Step 4: Similarly, the mass of the sand can be calculated by separating the sand from the mixture and weighing it. The difference between the initial mass and the mass of the remaining components will correspond to the mass of the sand.

Step 5: To determine the mass of the salt, the salt component needs to be separated from the mixture and weighed. The difference between the initial mass and the masses of the other components will indicate the mass of the salt.

Step 6: The percentage of each component in the mixture can be calculated by dividing the mass of each component by the initial mass of the mixture and multiplying by 100. This calculation provides the proportion of each component relative to the total mass of the mixture.

By addressing these questions, students gain a better understanding of the experimental procedure, the use of physical separation techniques, and the importance of accurately calculating masses and percentages in the context of the experiment.

Learn more about physical separation techniques

brainly.com/question/28527169

#SPJ11

Shaded pole motors are used when very small starting and running torques are required.

Shaded pole motors are a type of single-phase induction motors commonly used in applications where low starting and running torques are sufficient. They are simple and inexpensive motors that find applications in various small appliances, such as fans, refrigerators, and small pumps.

The operation of shaded pole motors relies on the principle of induction. They have a stator with salient poles, and each pole has a portion called a shading coil that is made of a short-circuited copper or aluminum conductor. When an AC voltage is applied to the motor, a rotating magnetic field is created, but due to the presence of the shading coil, there is a phase shift in the magnetic field, resulting in an uneven distribution of magnetic flux. This imbalance creates a small starting torque, and once the motor is running, the shaded pole generates a rotating magnetic field that keeps the motor in motion. However, shaded pole motors generally have low efficiency and limited power output, which restricts their use to applications with low torque requirements.

To learn more about torques click here, brainly.com/question/31323759

#SPJ11

Answer:

Named Binary Tag ( NBT)

Explanation:

The format is designed to store data in a tree structure made up of various tags

The meaning of the given word NBT is called; National Benchmark Test.

The meaning of the given word NBT is called National Benchmark Test.

NBT ( national benchmark test ) is defined as a national test which must be written and passed by High school students that intend to go to the university ( i.e. passport to the university ).

Read more about NBT at; https://brainly.com/question/26887507

Answer:

I looked at the comments said oh h e double hockey sticks no

Explanation:

Answer:

871.8008 KJ/kg

2573.42085 KJ/kg

0.3743

Explanation:

Solution:-

- We are to analyze an ideal Rankine cycle, where the condenser and boiler operating temperatures are defined.

- We start of by evaluating the properties of water at each state before and after the process.

State 1: Condenser Exit / Pump Inlet

           T1 = 40°C   ---> P1,sat = 7.3851 KPa , v1 = vf = 0.001008 m^3/kg

            sat liquid         h1 = hf = 167.53 KJ/kg , s1 = sf = 0.5724 KJ/kg.K

            P1 = condenser pressure

State 2: Pump Exit / Boiler Inlet

           P2 = P3 = Psat,300°C = 8587.9 KPa

Process 1: " Isentropic Compression - constant volume "

The work done by pump in the compression process is:

          wp = v1* ( P2 - P1 )

          wp = ( 0.001008 ) * ( 8587.9 - 7.3851 )

          wp = 8.64915 KJ /kg

Determine the enthalpy at " State 2 " by energy balance on pump ( control  Volume) :

          h2 = h1 + wp

          h2 = 167.53 + 8.64915

          h2 = 176.17915 KJ/kg

State 3: Boiler Exit / Turbine Inlet

          T1 = 300°C   ---> P3,sat = 8587.9 KPa

           sat vapor         h3 = hg =  2749.6 KJ/kg , s3 = sg =  5.7059 KJ/kg.K

           P3 = Boiler pressure

Process 2: " Heat Addition - constant pressure "

The heat supplied in the boiler is:

          qb = h3 - h2

          qp = ( 2749.6 - 176.17915 )

          qb = 2573.42085 KJ /kg    .... Answer ( b )

State 4: Turbine Exit / Condenser Inlet ( Isentropic )

          P4 = P1 = 7.3851 KPa         ..... sfg = 7.685 KJ/kg.K

          s4 = s3 = 5.7059 KJ/kg.K       sf = 0.5716994 KJ/kg.K

                                                           hf = 170.32524 KJ/kg

                                                          hfg = 2406.11 KJ/kg

Process 3: Isentropic Expansion - Determine the quality of liquid-vapor mixture phase ( x ) at state (4):

          x = (s4 - sf) / sfg

          x = (5.7059 - 0.5716994) / 7.685

          x = 0.66808

          h4 = hf + x*hfg

          h4 = 170.32524 + 0.66808*2406.11

          h4 = 1777.79920 KJ/kg

- The work-done by the turbine in the isentropic expansion process ( wt ) is:

          wt = h3 - h4

          wt = 2749.6 - 1777.7992

          wt = 971.8008 KJ/kg   ... Answer ( a )

- To determine the thermal efficiency ( nth ) of the rankine cycle. We need to determined the net work produced by the cycle ( wn ). The net work is the energy balance between the isentropic compression ( work done - pump ) and isentropic expansion ( work produced - turbine ):

          wn = wt - wp

          wn = 971.8008 - 8.64915

          wn = 963.15165 KJ/kg

- The thermal efficiency of a power cycle is the ratio of net work-produced ( wn ) and the heat supplied to the working fluid in the boiler ( qb ) as follows:

         nth = wn / qb

         nth = 963.15165 / 2573.42085

         nth = 0.3743    ..... Answer ( c )

Answer:

A

Explanation:

the type of work they do

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:

Both forms of the Risk Management Framework (RMF) illustrate a systems engineering process as a way to plan, design, and build a complicated system.

Engineering is a discipline and profession that involves the application of scientific, mathematical, and practical knowledge to design, develop, build, and improve various systems, structures, machines, processes, and technologies.

Engineers utilize their expertise to solve complex problems and create practical solutions that meet societal needs.

Engineers employ a systematic and analytical approach, combining creativity, technical skills, and scientific principles to tackle challenges across different fields.

Learn more about engineering on https://brainly.com/question/17169621

#SPJ4

Option C - two hours. Type 1B buildings are fire-resistive and feature noncombustible materials in both structural and non-structural components.

These buildings' structural components, such as the structural frame supporting the roof, are designed to withstand high temperatures for an extended period and, as a result, have high fire-resistance ratings.What is the minimum fire-resistance rating for the structural frame supporting only the roof of a Type 1B building?The minimum fire-resistance rating for the structural frame supporting only the roof of a Type 1B building is two hours. This means that the structural frame supporting the roof of a Type 1B building must be capable of resisting high temperatures and flames for at least two hours before structural failure occurs.This standard is necessary to prevent the structural frame from collapsing and causing significant damage in the event of a fire. In high-rise buildings, it is critical to prevent structural failure to ensure that firefighters and other rescue personnel have adequate time to respond to the situation and evacuate occupants safely.Therefore, the answer is Option C - two hours.

Learn more about structural frame :

https://brainly.com/question/31167870

#SPJ11

Answer:

In antagonistic combination of drugs, the effects of ine drug cancel or diminish the effects of another

We can infer and logically deduce that the color of a boat's sternlight is white.

A sternlight can be defined as a white light that is designed and developed to be placed as closely as possible and practical with the stern shining continuously (constantly).

By default, a sternlight is typically affixed to the boat in such a way that the light will shine out at an angle of 135 degrees (135°) from the back of the boat.

In this context, we can infer and logically deduce that the color of a boat's sternlight is white and it avails sailors and other persons the opportunity of determining and knowing the direction that a boat (vessel) is moving.

Read more on sternlight here: https://brainly.com/question/27999695

#SPJ1

Complete Question:

What color is a boat sternlight?

Answer:

Two basic components of a buildings superstrcuture are beams and slabs. These components both safley transger the live loads, dead loads, and other loads to the substrutufe. This further distributes it to the underlying earth

Explanation: