______________________________ provides a waterproof surface to enhance corrosion resistance of reinforcing bars. A. Welded wire B. Epoxy coating C. Stainless steel D. Zinc coating

Explanation:

I won't answer each of these, but will give you an explaination of how to solve for each.

You'll need to use Ohm's Law and Kirchhoff's Voltage Law.

Remember Ohm's Law as \(V = IR\).

Kirchoff's Voltage Law says that the sum of voltages for a given circuit "loop" must equal zero. In the circuit shown, this means that the voltage provided by the battery (E_T) equals the voltage drop across each of the three resisters in the loop.

\(E_T = E_1 + E_2 + E_3\)

A couple of other helpful notes:

These three resistors are in series which means that the current flowing through them is equal.

So it is easy to see that... \(V = IR \rightarrow E_1 = 4*2 = 8 V\)

Solve for the voltage across E_2 and E_3. The sum of the three voltages equals the voltage of the battery (E_T).

This area has low water-flow velocities because flowing water forms a reservoir that can be used for hydroelectric power generation or recreation : D (dam).

Learn more about hydroelectric generator refer to :

https://brainly.com/question/8934285

#SPJ4

The question is incomplete. The complete question is :

The hydrofoil boat has an A-36 steel propeller shaft that is 100 ft long. It is connected to an in-line diesel engine that delivers a maximum power of 2590 hp and causes the shaft to rotate at 1700 rpm . If the outer diameter of the shaft is 8 in. and the wall thickness is \($\frac{3}{8}$\)  in.

A) Determine the maximum shear stress developed in the shaft.

\($\tau_{max}$\) = ?

B) Also, what is the "wind up," or angle of twist in the shaft at full power?

\($ \phi $\) = ?

Solution :

Given :

Angular speed, ω = 1700 rpm

                              \($ = 1700 \frac{\text{rev}}{\text{min}}\left(\frac{2 \pi \text{ rad}}{\text{rev}}\right) \frac{1 \text{ min}}{60 \ \text{s}}$\)

                              \($= 56.67 \pi \text{ rad/s}$\)

Power \($= 2590 \text{ hp} \left( \frac{550 \text{ ft. lb/s}}{1 \text{ hp}}\right)$\)

          = 1424500 ft. lb/s

Torque, \($T = \frac{P}{\omega}$\)

                 \($=\frac{1424500}{56.67 \pi}$\)

                 = 8001.27 lb.ft

A). Therefore, maximum shear stress is given by :

Applying the torsion formula

\($\tau_{max} = \frac{T_c}{J}$\)

        \($=\frac{8001.27 \times 12 \times 4}{\frac{\pi}{2}\left(4^2 - 3.625^4 \right)}$\)

      = 2.93 ksi

B). Angle of twist :

     \($\phi = \frac{TL}{JG}$\)

         \($=\frac{8001.27 \times 12 \times 100 \times 12}{\frac{\pi}{2}\left(4^4 - 3.625^4\right) \times 11 \times 10^3}$\)

         = 0.08002 rad

         = 4.58°

The concentration of chloride ions in the solution can be calculated by using the Nernst equation.

The Nernst equation is used to calculate the potential of an electrochemical cell under non-standard conditions. It relates the electrode potential to the concentrations of the species present in the solution.

The Nernst equation is:E = E° - (RT/nF) ln(Q)where, E is the cell potential under non-standard conditions,E° is the standard electrode potential, R is the gas constant, T is the temperature, n is the number of moles of electrons transferred, F is the Faraday constant, and Q is the reaction quotient.In this case, the standard cell potential (E°) is 0.115 V, and the measured cell potential (E) is 0.0925 V.

The reaction is given as:2AgCl(s) + 2e- → 2Ag(s) + 2Cl-(aq)We can see that n = 2 (two electrons are transferred in the reaction).The Nernst equation can be rearranged to solve for the concentration of chloride ions (Cl-) in the solution:ln(Cl-) = (E° - E)/(0.0592/n)ln(Cl-) = (0.115 - 0.0925)/(0.0592/2)ln(Cl-) = 0.378M[Cl-] = e^0.378M[Cl-] = 1.46 MTherefore, the concentration of chloride ions in the solution is 1.46 M.

To know more about concentration visit:

https://brainly.com/question/13872928

#SPJ11

Answer: it spread by winds has a strong effect on fire behavior due to the fanning effect on the fire.Wind increases the supply of oxygen.

Explanation:

Fires need three things to occur in order to start and grow: oxygen, a spark/heat, and fuel. Wildfires in forests have plenty of fuel and heat is never really an issue, therefore the wind can cause a fire to continue and even spread faster. Wind will not only increase the fire's supply of oxygen, but it will   also blow the fire in many different directions, now causing the flames to spread.

Answer:

The correct answer to the following question will be "1.23 mm".

Explanation:

The given values are:

Average normal stress,

\(\sigma=200 \ MPa\)

Elastic module,

\(E = 77 \ GPa\)

Length,

\(L = 570 \ mm\)

To find the deformation, firstly we have to find the equation:

⇒  \(\delta=\Sigma\frac{N_{i}L_{i}}{E \ A_{i}}\)

⇒     \(=\frac{P(\frac{L}{H})}{E(bt)} +\frac{P(\frac{L}{2})}{E (bt)(\frac{2}{3})}+\frac{P(\frac{L}{H})}{Ebt}\)

On taking "\(\frac{PL}{Ebt}\)" as common, we get

⇒     \(=\frac{\frac{PL}{Ebt}}{[\frac{1}{4}+\frac{3}{4}+\frac{1}{4}]}\)

⇒     \(=\frac{5PL}{HEbt}\)

Now,

The stress at the middle will be:

⇒  \(\sigma=\frac{P}{A}\)

⇒     \(=\frac{P}{(\frac{2}{3})bt}\)

⇒     \(=\frac{3P}{2bt}\)

⇒  \(\frac{P}{bt} =\frac{2 \sigma}{3}\)

Hence,

⇒  \(\delta=\frac{5 \sigma \ L}{6E}\)

On putting the estimated values, we get

⇒     \(=\frac{5\times 200\times 570}{6\times 77\times 10^3}\)

⇒     \(=\frac{570000}{462000}\)

⇒     \(=1.23 \ mm\)  

The number of hectares of each crop he should plant are; 250 hectares of Corn, 500 hectares of Wheat and 450 hectares of soybeans

He grows corn, wheat and soya beans on the farm of 1200 hectares. Thus;

C + W + S = 12   ----(1)

It costs $45 per hectare to grow corn, $60 to grow wheat, and $50 to grow soybeans. Thus;

45C + 60W + 50S = 63750  -----(2)

He will grow twice as many hectares of wheat as corn. Thus;

W = 2C    ------(3)

Put 2C for W in eq 1 and eq 2 to get;

C + 2C + S = 1200

3C + S = 1200     -----(4)

45C + 60(2C) + 50S = 63750

45C + 120C + 50S = 63750

165C + 50S = 63750    ------(5)

Solving eq 4 and 5 simultaneosly gives;

C = 250 and W = 500

Thus; S = 1200 - 3(250)

S = 450

Read more about algebra word problems at; https://brainly.com/question/13818690

The footwear may be designed to be either electrically conductive or non-conductive. Electrical conductivity in footwear is important in certain industries to protect workers from electrical hazards. If the workplace involves exposure to electricity, conductive footwear is required.

On the other hand, in industries where there is a risk of static electricity buildup, non-conductive footwear is necessary to prevent electrostatic discharge. The design of the footwear will depend on the specific needs of the industry and the hazards present in the workplace. Electrically conductive footwear is made with materials that allow electricity to flow through them, while non-conductive footwear is made with insulating materials that prevent the flow of electricity. In addition to their specific function, other factors such as comfort, durability, and slip resistance may also be taken into consideration in the design of the footwear.

ESD footwear is designed to control the buildup of static electricity in the body by providing a path for electrical discharge. They can be either electrically conductive or non-conductive depending on the specific requirements of the workplace or environment in which they are used. ESD footwear may be designed to be electrically conductive or non-conductive to control static electricity and provide a safe working environment.

To know more about electrically conductive visit:

https://brainly.com/question/31668005

#SPJ11

The technique that separates proteins independently of their charge is called size exclusion chromatography.

This technique separates proteins based on their size and shape, rather than their charge. In size exclusion chromatography, the protein mixture is passed through a column containing beads with pores of a specific size.

Larger proteins are unable to fit into the pores and therefore elute from the column first, while smaller proteins are able to enter the pores and elute later. This allows for the separation of proteins based on their size, with smaller proteins eluting later and larger proteins eluting first.

Size exclusion chromatography is particularly useful for purifying proteins and removing impurities from a sample, as it can separate a wide range of proteins regardless of their charge or other physical properties.

This technique is commonly used in the biotechnology industry for protein purification and analysis, and has been instrumental in the development of many important therapies and biologics.

For more such questions on chromatography, click on:

https://brainly.com/question/28731153

#SPJ11

Answer:The two-second rule is a rule of thumb by which a driver may maintain a safe trailing distance at any speed. The rule is that a driver should ideally stay at least two seconds behind any vehicle that is directly in front of his or her vehicle.

Explanation:

A caisson is a watertight enclosure that can be pumped dry so that construction activities, such as the construction of piers can take place. A caisson is a watertight structure or chamber, usually made of wood, metal, or concrete, that is sunk to the bed of a river, lake, or ocean to provide a foundation or support for a bridge, building, or other structure.

A caisson is constructed onshore and then floated to the location where it is to be sunk into the water. Once in place, water is pumped out of the caisson, and construction workers enter the dry chamber to begin work on the foundation or support structure. The use of caissons has been an important development in the construction of bridges and other structures in areas with deep water or unstable soils.

A foundation called a caisson is used in construction on soft or deep water. It involves filling a series of large, watertight cylinders with concrete and sinking them into the ground. The base serves as a solid foundation for any subsequent structures. The construction of large structures like bridges, docks, and caissons is common.

Know more about caisson, here:

https://brainly.com/question/16249983

#SPJ11

False.

The voltage through a resistor with current i(t) in the s-domain is simply Ri(s), where R is the resistance value of the resistor. In the s-domain, the relationship between voltage and current through a resistor can be expressed using Ohm's law as V(s) = I(s)R.

Therefore, the voltage across a resistor in the s-domain is proportional to the current through it, with the proportionality constant being the resistance value. It's important to note that this relationship only holds true for resistive elements in linear circuits. Non-linear circuit elements such as diodes and transistors have much more complex voltage-current relationships that cannot be described using a simple linear equation.

To know more about diodes visit:

https://brainly.com/question/32612539

#SPJ11

Answer:

2.5=1500/Whp=> Whp=600 kWh

delWgain=1500-600=900 kWh

Money saved= 900* 6tk*=5400 tk

The term hop count in a packet switched communications network route indicates the number of network devices, such as routers or switches, that a packet must pass through to reach its destination. Each device is considered a hop, and the hop count represents the total number of these hops.

This metric is used to measure the efficiency and speed of a network, as a higher hop count can indicate longer delays and increased network congestion. Network administrators can use hop count to troubleshoot network issues and optimize routing paths for better performance. By monitoring and managing hop count, network administrators can make informed decisions to enhance the overall performance and reliability of the network, ensuring efficient data transmission and communication across the network infrastructure.

Learn more about network: https://brainly.com/question/8118353

#SPJ11

Answer:

The main distinction between the Iron Age and the Bronze Age is that during the Iron Age, iron was discovered and refined, allowing for the production of lighter and stronger metal tools. This enabled major advances in agriculture, animal domestication, and the overall development of societies, as people were able to settle in agricultural communities more permanently.

Explanation:

Answer:

A) Discovery and refinement of metals was revolutionary.

Explanation:

The most negative value can take before the amplifier saturates. Suppose, Consider a non-ideal op amp where the output can saturate. Hence, The most negative value of is 0.5 mV

The most negative value v2 can take before the amplifier saturates.Suppose, Consider a non-ideal op amp where the output can saturate.The open voltage gain is2*10 4 where,According to figure,

The negative output value is

v0 = -10V

We need to calculate the most negative value of  

Using given formula

v0 = -A(Vs)

Where, = output value

A = voltage gain

Put the value into the formula

-10 = -2 *10 4* Vs

vs = 10/2*10  4

Vs = 0.0005v

Vs = 0.5MV

Hence, The most negative value of  is 0.5 mV.

To learn more about amplifier saturates refer

https://brainly.in/question/18727798

#SPJ9

The most negative value can take before the amplifier saturates. Suppose, Consider a non-ideal op amp where the output can saturate. Hence, The most negative value of is 0.5 mV

The most negative value v2 can take before the amplifier saturates. Suppose, Consider a non-ideal op amp where the output can saturate. open voltage gain is2*10 4 where, According to figure,

The negative output value is

v0 = -10V

We need to calculate the most negative value of  

Using given formula

v0 = -A(Vs)

Where, = output value

A = voltage gain

Put the value into the formula

-10 = -2 *10 4* Vs

vs = 10/2*10  4

Vs = 0.0005v

Vs = 0.5MV

Hence, The most negative value of  is 0.5 mV.

To learn more about amplifier saturates refer

https://brainly.com/question/16190769

#SPJ9

Answer:

Under cold air standard conditions, the thermal efficiency of this cycle is 56.9 percent.

Explanation:

From Thermodynamics we remember that thermal efficiency of the ideal Otto cycle (\(\eta_{th}\)), dimensionless, is defined by the following formula:

\(\eta_{th} = 1-\frac{1}{r^{\gamma-1}}\) (Eq. 1)

Where:

\(r\) - Compression ratio, dimensionless.

\(\gamma\) - Specific heat ratio, dimensionless.

Please notice that specific heat ratio under cold air standard conditions is \(\gamma = 1.4\).

If we know that \(r = 8.2\) and \(\gamma = 1.4\), then thermal efficiency of the ideal Otto cycle is:

\(\eta_{th} = 1-\frac{1}{8.2^{1.4-1}}\)

\(\eta_{th} = 0.569\)

Under cold air standard conditions, the thermal efficiency of this cycle is 56.9 percent.

Answer:

False.

Explanation:

An equi-join is a type of join in which the join condition is based on equality between values in the specified columns in the two tables being joined.

In an equi-join, duplicate columns are not eliminated in the result table. Instead, the result table will contain all the columns from both tables being joined, including any duplicate columns. To eliminate duplicate columns, you would need to explicitly specify which columns to include in the SELECT statement, or use a different type of join such as a natural join or inner join with USING clause.

A contractor has a job that should be completed in 100 days. At present, he has 80 men on the job and it is estimated that they will finish the work in 130 days. Of the 80 men, 50 are each paid ₱120.00 a day, 25 at ₱180.00 a day, and 5 at ₱250.00 a day. For each day beyond the original 100 days, a contractor has to pay ₱500.00.

liquidated damages.(a) How many more men should the contractor add so that he would complete the work on time?In the first case, we see that the contractor already has 80 men and they are working for 130 days to complete the job. So, we can use the following formula to determine the additional number of workers required to finish the work in 100 days.

b) If of the additional men, 2 are paid ₱180.00 a day, and the rest at ₱120.00 a day, would the contractor save money by employing more men and not paying the fine Let’s assume that the contractor adds 440 workers, of which 2 are paid ₱180.00 a day and the rest are paid ₱120.00 a day.

The total cost of the new workers is, therefore, ₱9600.00 + ₱4500.00 + ₱49800.00 = ₱63,900.00.The cost of liquidated damages would be calculated as follows:  $$LD = (130-100) \cdot 500 = ₱15,000.00$$.

Therefore, the contractor would save money if he employs more men and not pays the fine. The contractor’s savings would be:$$Savings = LD - Additional cost$$$$= 15000.00 - 63900.00 $$$$= -48900.00$$

Thus, we can see that the contractor would save ₱48,900.00 by employing more men and not paying the fine.

To know more about contractor visit:

https://brainly.com/question/31457618

#SPJ11

Only the activities of drafts, layouts and specification involves applied art skills distinguishes an architect’s use of creative thinking  Hence option A is correct.

Creative thinking is defined as the capacity to tackle a situation or difficulty from a novel angle, alternate perspective, or unconventional thinking. Creative thinking, also referred to as creative problem-solving, is an important and marketable soft skill in a wide range of industries.

The architect  will think about the creative changes in drafting the text, in making the specifications and in making new and affective layouts.

Thus, only the activities of drafts, layouts and specification involves applied art skills distinguishes an architect’s use of creative thinking  Hence option A is correct.

To learn more about creative thinking, refer to the link below:

https://brainly.com/question/12228697

#SPJ1

The factors that  you need to consider when preparing to move gondolas are:

In choosing gondola one need to look at some  factor in decisions such as height.

Know that it is good to  consider the construction material and also the center wall configuration for its building also.

The factors that  you need to consider when preparing to move gondolas are:

Learn more about gondola from

https://brainly.com/question/10652274

#SPJ1

Answer:

b

Explanation:

A type of heating and air conditioning system that relies only on heated or cooled water to adjust the air temperature is known as a hydronic system.

To learn more about glycol  refer to:

https://brainly.com/question/11994953

#SPJ1

The quartiles divide a set of observations into four portions, each representing 25% of the observations, together with the minimum and maximum values of the data set. The interquartile range, a measurement of variation around the median, is calculated using quartiles.

Statistical file: {2, -6, 5}

Quartile Q1: -6

Quartile Q2: 2

Quartile Q3: 5.

To Learn more about quartiles refer to:

https://brainly.com/question/28168026

#SPJ1

RMS stands for Root-Mean-Square of instantaneous current values. The RMS value of alternating current is given by direct current which flows through a resistance.  

The root-mean-square (rms) voltage of a sinusoidal source of electromotive force is used to characterize the source. It is the square root of the time average of the voltage squared. The value of V rms is V0/Square root of√2, or, equivalently, 0.707V0. A load that has a lagging power factor is, by convention, said to be receiving reactive power from the source. A load that has a leading power factor is, by convention, said to be delivering reactive power to the source. A leading power factor signifies that the load current is capacitive in nature whereas a lagging power factor signifies that the load current is inductive. In this regard, a leading power factor can be corrected by adding inductive loads and a lagging power factor can be corrected by adding capacitive loads. Power factors are usually stated as leading or lagging to show the sign of the phase angle. Capacitive loads are leading (current leads voltage), and inductive loads are lagging (current lags voltage).  \({\displaystyle {\mbox{power factor}}=P/P_{a}}��=��������{\displaystyle P_{a}=I_{rms}V_{rms}}\)

Learn more about Root Mean Square here:

https://brainly.com/question/29655057

#SPJ4

Neither technician A nor technician B is completely correct regarding the best way to clean the clutch dust.

Technician A is partially correct that North American clutch manufacturers no longer use asbestos, which is a harmful substance found in older clutch materials. However, this does not mean that clutch dust is not a concern. Newer clutch materials still produce dust that can be harmful if inhaled, so precautions should still be taken.

Technician B is incorrect in saying that compressed air is the best way to clean the clutch housing when performing a clutch replacement. Compressed air can actually blow the dust around, causing it to spread and potentially exposing the technician to harmful particles. It is recommended to use a wet method, such as a damp cloth or a brake cleaner, to clean the clutch dust housing and surrounding area.

Therefore, neither technician A nor technician B is completely correct, and it is important to follow proper safety procedures when working with clutch components.

Learn more about Decision making at:

https://brainly.com/question/25870371

#SPJ11

As the typical value can be represented by the mean, it acts as a benchmark for all observations.

A dataset's mean (also known as the arithmetic mean, which differs from the geometric mean) is calculated by dividing the sum of all values by the total number of values. It is frequently referred to as the average and is the most widely used measure of central tendency.

The mean is the average or most frequent value among a set of numbers. It is a statistical measure used to determine the median and mode of a probability distribution's central tendency. It is additionally known as an expected value.

Finding the "average" value involves adding up all the data points and dividing by the total number of data points.

Use the R codes listed below to replicate the answers:

d = c(10.35, 9.30, 10.00, 9.96, 11.65, 12.00, 11.25, 9.58, 11.54,

9.95, 10.28, 8.37, 10.44, 9.25, 9.38, 10.85)

mean(d)

sd(d)

se = sqrt(length(d)) / sd(d)

se

Mean(d) - 1.96* se = CIl

mean(d) + 1.96* se CIU

CI = c (CIl, CIU)

To learn more about  Mean refer to:

https://brainly.com/question/1136789

#SPJ4

Answer: 2 step by step

Explanation: ;) don't know if this helped or not