Two transmission belts pass over a double-sheaved pulley that is attached to an axle supported by bearings at A and D. The radius of the inner sheave is 125 mm and the radius of the outer sheave is 250 mm. Knowing that when the system is at rest, the tension is 100 N in both portions of belt B and 160 N in both portions of belt C, determine the reactions at A and D. Assume that the bearing at D does not exert any axial thrust.

That is an example of a want because you don't need the ball.

A manufacturer begins with 25-cm x 15-cm rectangular pieces of plate steel 8-mm thick (it weighs 62.8 kg/m2 ). The corners are rounded off with a 2-cm radius and a 3-cm radius hole is drilled in the center.

The area of the rectangular plate with rounded corners is given by

A = (25-4r)(15-4r) + (πr^2)/2 - πr^2A = 375 - 100r + 8π

And, the weight of one such plate is given by

W = A × 0.008 × 62.8W = (375 - 100r + 8π) × 0.008 × 62.8W = 18.732 - 5.024r + 0.5024π

The manufacturer has 590 such plates,

So, the total weight of 590 such plates is590 × (18.732 - 5.024r + 0.5024π) kg≈ 11015 kg (rounded to the nearest kilogram)

Thus, the weight of 590 of the finished plates, rounded to the nearest kilogram for shipping purposes, is approximately 11015 kg.

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c. Throughput. The factor that is not considered when OSPF determines the best path for a packet is Throughput. OSPF calculates the best path based on the link cost.

Open Shortest Path First (OSPF) is a routing protocol used to determine the best path for data packets in a network. OSPF calculates the cost of each possible path based on several factors, such as the number of hops, the bandwidth, and the latency. However, it does not consider the throughput of the network. Throughput is the amount of data that can be transmitted over a network in a given period of time, and it is affected by factors such as network congestion, packet loss, and the quality of the physical media. Therefore, OSPF may not always choose the most efficient path in terms of throughput.

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Answer:

Post navigation. The technical excellence of separation achieved in a mineral concentration process, or any other process where two constituents of any kind are physically separated from each other, is expressed uniquely and quantitatively by the Separation Efficiency: Es = (R – Rg)

Explanation:

hope it helps.

Answer:

  (b)   io(t) = -6e^(-3000t) mA, t > 0

Explanation:

The inductor current at t=0 is 12 V/(2 kΩ) = 6 mA. When the switch is opened, that same current will continue to flow in the loop on the left. Its direction will continue to be down through the inductor, so in the negative direction with respect to the way io is defined.

This already tells you the correct answer choice: B.

__

The circuit time constant is L/R = (2 H)/(6 kΩ) = 1/3000 seconds. The exponent of the exponential decay will be t divided by this, or -3000t, also in agreement with choice B.

Answer:

  see attached

Explanation:

As you know, a full adder produces the binary value in (carry, output) that is the the number of true input bits among the (carry in, A, B) inputs.

The annotated diagram attached shows the bit values for a 4-bit full adder/subtractor.

__

Additional comment

If the numbers are considered "signed", then the top diagram will generate an "overflow" based on the difference between the carry C4 and the output O4.

Answer:

The timing light is connected to the ignition circuit and used to illuminate the timing marks on the engine's crankshaft pulley or flywheel, with the engine running. The apparent position of the marks, frozen by the stroboscopic effect, indicates the current timing of the spark in relation to piston position.

Explanation:

:)

I'd say number 4, number 3 looks like an exhaust valve

Answer:

genorator- electrical to mechanical

motor- mechanical to electrical

The angular convergence and linear convergence experienced by the Chewela and Gulf Shores 7.5-minute topographic maps need to be computed using the Clarke spheroid of 1866 as the reference surface. The length of the parallel covered by the 7.5' on the southern boundary of each map is not the same due to the difference in latitude.

A) To compute the angular convergence, we need to determine the difference in latitude between the northern and southern edges of each map. The linear convergence can be calculated by multiplying the angular convergence by the distance between the northern and southern edges of the map. Using the given latitudes, the angular convergence and linear convergence for both Chewela and Gulf Shores can be computed using the Clarke spheroid of 1866 as the reference surface.

B) (a) The length of the parallel covered by the 7.5' on the southern boundary of each map is not the same because the maps are located at different latitudes. As latitude increases, the distance between lines of latitude decreases. Therefore, at a higher latitude like Chewela (48°15'00"N), the length covered by 7.5' is shorter compared to Gulf Shores (30°15'00"N).

(b) To achieve the same convergence angle in Chewela as in Gulf Shores, the topographic map for Chewela would have to be smaller. Since Chewela is at a higher latitude, it experiences a greater convergence angle than Gulf Shores. A smaller map would compensate for the larger convergence angle in Chewela.

(c) In the early 1800s, when surveying equipment had low precision, the effect of convergence would most likely be seen in field measurements in Alabama rather than Indiana. This is because Alabama (Gulf Shores) has a larger convergence angle than Indiana (Chewela). The convergence angle causes distortion in the field measurements, and the larger the convergence angle, the greater the distortion. Therefore, the effect of convergence would be more pronounced in Alabama due to its higher convergence angle compared to Indiana.

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Answer:

a) efficiency is equal to 67.2%, and this is lesser than the maximum obtainable efficiency, so this power output is possible.

b) efficiency is 75%, this is approximately equal to the maximum obtainable efficiency, but not more that it. This power output is also possible.

Explanation:

Cold reservoir temperature Tc = 295 K

Hot reservoir temperature Th = 1175 K

Energy input Q = 150000 K/h

Converting to kJ/s, Q  = 150000/3600 = 41.66 kJ/s

Maximum efficiency that can be obtained from this cycle = \(1 - \frac{Tc}{Th}\)

==> \(1 - \frac{295}{1175}\) = 0.748 ≅ 75%

also recall that actual cycle efficiency = \(\frac{W}{Q}\)

Where W is the energy output or work

a) for work of 28 kW,

eff =  \(\frac{W}{Q}\) =  \(\frac{28}{41.66}\) = 0.672 ≅ 67.2%

this is lesser than the maximum obtainable efficiency, so this power output is possible.

b) for work of 31.2 kW

eff =  \(\frac{W}{Q}\) =  \(\frac{31.2}{41.66}\) = 0.748 ≅ 75%

this is approximately equal to the maximum obtainable efficiency, but not more that it. This power output is possible.

NB: kW is also equal to kJ/S

The following code snippet can be used to write a for loop to populate vector userGuesses with NUM_GUESSES integers:```
#include
#include
using namespace std;

int main() {
 const int NUM_GUESSES = 3;
 vector userGuesses(NUM_GUESSES);
 int i = 0;
 
 for(i = 0; i < NUM_GUESSES; i++) {
   cin >> userGuesses[i];
 }
 
 return 0;
}
```Here, the for loop starts with i=0, and it will continue until i is less than NUM_GUESSES. Inside the loop, userGuesses[i] is read from the standard input using cin statement. Finally, the userGuesses vector is populated with NUM_GUESSES integers.

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The expected temperature drop through a direct-expansion evaporator coil depends on several factors, including the refrigerant used, the coil design, and the airflow rate. However, in general, a temperature drop of around 15ºF is considered typical for most applications. This means that if the air entering the coil is at 75ºF, the air leaving the coil will be around 60ºF. The correct option for this question is (b) 15ºF

It is important to note that this is just an average value, and actual temperature drops may vary depending on the specific conditions of the installation. Coil manufacturers usually provide charts and tables that can help determine the expected temperature drop based on various parameters such as refrigerant type, coil dimensions, and airflow rates.

These charts should be consulted when selecting and installing a direct-expansion evaporator coil to ensure optimal performance and efficiency.

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The purpose of eliminating arbitrary functions is to obtain a simplified form of the equation that relates the variables involved, allowing for easier analysis and solution of the partial differential equation.

In the given problem, we are asked to eliminate the arbitrary function and arbitrary constants from two different equations.

(a) To eliminate the arbitrary function from the equation z = xfi(x + bt) + f2(x + bt), we need to differentiate the equation with respect to x and t separately. By eliminating the derivatives of the arbitrary function, we can obtain the partial differential equation.

(b) To eliminate the arbitrary constants a and b from the equation z = blog[ey1), 1-X, we need to differentiate the equation with respect to x and y separately. By equating the derivatives and solving the resulting equations, we can eliminate the arbitrary constants and obtain the partial differential equation.

Overall, the goal of these problems is to manipulate the given equations in order to remove any arbitrary functions or constants, and obtain a partial differential equation that relates the variables involved.

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The statement "Separating equilibria can be sub-optimal because everyone would be better off if there were no signals but if one agent signals then everyone has to" is a valid reason.

This refers to a situation where individuals would prefer not to send any signals, but due to strategic considerations, if one person starts signaling, others are compelled to do so as well, even though it may not be in their best interest.

The other options listed are not directly related to the sub-optimality of separating equilibria:

b. Signals can be too costly: This refers to the cost associated with sending signals, which may affect the decision-making process, but it doesn't directly address the sub-optimality of separating equilibria.

c. Signals lack credibility: This refers to the issue of whether signals can be trusted or relied upon, but it doesn't directly relate to the sub-optimality of separating equilibria.

d. Humans are inherently conformist: This refers to the tendency of individuals to conform to social network or follow the behavior of others, but it doesn't specifically address the sub-optimality of separating equilibria.

Therefore, the correct answer is option a. everyone would be better off if there were no signals but if one agent signals then everyone has to.

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Answer: B.Idle relearn

Explanation:

When replacing an intake manifold gasket due to a vacuum leak, using a scan tool for idle relearn is a crucial step to complete the job. The Option B.

The scan tool is used to reset the idle control system and allow the engine's computer to relearn the correct idle speed and air/fuel mixture. This is important because the replacement of the intake manifold gasket can affect the engine's idle characteristics.

By using the scan tool to perform an idle relearn procedure, the engine management system can recalibrate and optimize the idle control parameters, ensuring smooth and stable idle operation. This step helps to restore the engine's performance and maintain proper combustion efficiency after the intake manifold gasket replacement.

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The basic requirement of measurements is to have a standard or reference point against which to compare the quantity being measured. This standard or reference point should be well-defined and stable, and the measurement process should be repeatable and consistent. Additionally, it is important to ensure that the measurement equipment is calibrated and in good working condition.

Answer:

The most basic requirement for measurements is the presence of a standard or reference point against which the quantity being measured can be compared. The measurement process should be repeatable and consistent, and the standard or reference point should be well-defined and stable. Furthermore, ensure that the measurement equipment is calibrated and in good working order.

Explanation:

Answer:

Scheduling is a process of create a structure that shows the way a schedule is organized before developing a complete and final schedule of a project.

Explanation:

This is the initial step in of developing a project schedule for a capital cost project. At this stage, the estimates for the project are done involving the various actions in the project. A lot of details are included in this  schedule showing the activities that are to be performed and the constraints involved.

Note that when Technician says that when fuel is being dosed to a DPF, the unit is being passively regenerated, and technician B says that when fuel is being dosed to a DPF, the unit is being actively regenerated, the one who is correct is technician B.

A diesel particulate filter (DPF) is an emissions control device that reduces the quantity of soot and other particles generated by diesel engines. It is a vital component of current diesel emissions control systems since it aids in the reduction of air pollution and the meeting of more stringent emissions requirements.

Note that the unit is actively regenerated when fuel is dosed to a DPF (diesel particulate filter).

Active regeneration entails injecting more fuel into the exhaust stream to raise the temperature of the DPF and burn off deposited soot. This operation is usually began when the DPF gets too clogged to efficiently filter out pollutants, and it is required to maintain the system's performance and efficiency.

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According to research, an overpressure of about 40 PSI (pounds per square inch) is the level at which 50% of people exposed to the blast would experience lung hemorrhage.

To mathematically determine the overpressure where 50% of people exposed to a blast would experience lung hemorrhage, the peak pressure, duration, and impulse of the pressure wave created by the blast must be measured.

The peak pressure is the maximum amount of pressure generated by the blast, the duration is the amount of time the pressure wave persists, and the impulse is the total amount of pressure generated by the blast. The peak pressure, duration, and impulse are then used to calculate the overpressure using the following equation:

This equation will calculate the overpressure where 50% of people exposed to the blast would experience lung hemorrhage.

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Answer:

16.2 cents

Explanation:

Given that a homeowner consumes 260 kWh of energy in July when the family is on vacation most of the time.

Where Base monthly charge of $10.00. First 100 kWh per month at 16 cents/kWh. Next 200 kWh per month at 10 cents/kWh. Over 300 kWh per month at 6 cents/kWh.

For the first 100 kWh:

16 cent × 100 = 1600 cents = 16 dollars

Since 1 dollar = 100 cents

For the remaining energy:

260 - 100 = 160 kwh

10 cents × 160 = 1600 cents = 16 dollars

The total cost = 10 + 16 + 16 = 42 dollars

Note that the base monthly of 10 dollars is added.

The cost of 260 kWh of energy consumption in July is 42 dollars

To determine the average cost per kWh for the month of July, divide the total cost by the total energy consumed.

That is, 42 / 260 = 0.1615 dollars

Convert it to cents by multiplying the result by 100.

0.1615 × 100 = 16.15 cents

Approximately 16.2 cents

The estimated average regional groundwater level rise is 5.365 m/day for an aerial extent of 250 acres and 2.171 m/day for an aerial extent of 2.5 km².

To estimate the average regional groundwater level rise, we need to first calculate the volume of water leaking from Tempe Town Lake daily and then divide that by the area and specific yield.

First, we need to find the average leakage rate. The leakage rate varies from 0.5 m/day to 3 m/day.

We can calculate the average as follows:

Average leakage rate = (0.5 + 3) / 2 = 3.5 / 2 = 1.75 m/day

Next, we need to calculate the volume of water leaking daily. The lake covers 230 surface acres, which we need to convert to square meters:

1 acre = 4046.86 m²

230 acres = 230 * 4046.86 m² = 930,776.8 m²

Now, we can find the volume of water leaking daily:

Volume = Surface area * Leakage rate

Volume = 930,776.8 m² * 1.75 m/day = 1,628,859 m³/day

Now, let's find the average regional groundwater level rise for each scenario:

a) 250 acres

First, convert the area to square meters:

250 acres = 250 * 4046.86 m² = 1,011,715 m²

Groundwater level rise = Volume / (Area * Specific yield)

Groundwater level rise = 1,628,859 m³/day / (1,011,715 m² * 0.3) = 5.365 m/day

b) 2.5 km²

First, convert the area to square meters:

2.5 km² = 2.5 * 1,000,000 m² = 2,500,000 m²

Groundwater level rise = Volume / (Area * Specific yield)

Groundwater level rise = 1,628,859 m³/day / (2,500,000 m² * 0.3) = 2.171 m/day

In summary, the estimated average regional groundwater level rise is 5.365 m/day for an aerial extent of 250 acres and 2.171 m/day for an aerial extent of 2.5 km².

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Answer:

Remember Ohms law (the holy grail of electronics): V=IR

Explanation:

V=IR, where:

V=Voltage

I=Current

R=Resistance.

Looking at the equation (V=IR),

if R remains constant, but V is double, that means that the current has to also double, in order to keep the equation true.

Answer: the Current will double if voltage is doubled and resistance is kept constant.

Answer:

Fire extinguishers controls the amount of pollution caused by smoke and burning. Although they have no expiring date, they won't last forever. Extinguishers should work for 5 to 15 years, but fire extinguishers be routinely maintained to make sure they remain effective.

Explanation:

BRAINLEST PLZ

Answer:

Fire extinguishers control the amount of pollution caused by smoke and burning. Although they have no expiring date, they won't last forever. Extinguishers should work for 5 to 15 years, but fire extinguishers are routinely maintained to make sure they remain effective.

Answer:

10.5

Explanation:

Convert to an equation for example P%* X=Y

P is 7.5% X is 140, so the equation Is 7.5 percent * 14= Y

convert 7.5% Into a decimal by removing the percent sign and deviding by 7.5/100= 0.075

Substitute 0.075 for 7.5% in the equation: 7.5%*140=Y becomes 0.075*140= 10.5

Answer:

  your answer is correct

Explanation:

You have the correct mapping from inputs to outputs. The only thing your teacher may disagree with is the ordering of your inputs. They might be written more conventionally as ...

 A B Y

 0 0 1

 0 1 0

 1 0 0

 1 1 1

That is, your teacher may be looking for the pattern 1001 in the last column without paying attention to what you have written in column B.

This part might take approximately 5,000 minutes to resist the cyclic loading before failure.

The endurance of an engineering part under cyclic loading can be estimated using the concept of fatigue life. Fatigue life refers to the number of cycles a material can withstand before failure under a specific stress level. In this case, the part is made of 2014-T6 aluminum and subjected to a cyclic stress of 200 MN/m2.

To determine the endurance, we need to consider the fatigue strength of the material, which represents its resistance to cyclic loading. Fatigue strength is determined through experimental testing and analysis. By dividing the fatigue strength by the applied cyclic stress, we obtain the number of cycles the part can endure before failure.

Fatigue is a common failure mechanism in engineering materials and structures subjected to cyclic loading. Understanding the fatigue behavior of materials is essential in designing components that can withstand long-term cyclic loads without failure.

Factors such as material properties, stress levels, loading frequency, and surface conditions can influence the fatigue life of a part. Engineers employ various techniques to predict and improve the fatigue life, including stress analysis, fatigue testing, and design modifications.

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Answer:

1/1260

Explanation:

Since ther PIN consists of 2 characters with one being an alphabet while the other is a letter;

There are 26 alphabets and 10 possible digits. Thus;

Total characters = 36 characters.

Probability of someone correctlly guessing a bank Customer's PIN in the first attempt if no repeats are allowed is; 1/(36C1 * 35C1) = 1/1260