in this image if the ground were removed from the neutral wire what would the voltage to ground be?

Answer:

Explanation:

plz provide the density

w/ density, the drag force can be calculated:

drag force = drag coefficient * cross-section area * .5 * density * Velocity^2

where drag coefficient is given as 0.299,

cross-section area = 3.14*0.04^2

Velocity given as 30

Answer:

Explanation:

Drag force is given by the equation: 1/2 * drag coefficient * density * area * velocity^2.

So drag force = 1/2 * 0.299 * density * 3.14 * (40/1000)^2 * 30^2

This question is incomplete, the missing diagram is uploaded along this answer below;

Answer:  

the increase in the overturning moment is 10.1 × 10⁶ lb.ft/ft

Option c) 10.1 × 10⁶ lb.ft/ft id the correct answer

Explanation:

 Given the data in the question and illustrated in the image below;

Hydrostatic force on Dam ( per unit length )

P = [tex]\frac{1}{2}[/tex] rH.H = [tex]\frac{1}{2}[/tex]rH² lb/ft

Now, Overturning moment;

M = R × P = H/3 × [tex]\frac{1}{2}[/tex]rH²  = [tex]\frac{1}{6}[/tex]rH³ lb.ft/ft

so when H = 175 ft

M₁ =  [tex]\frac{1}{6}[/tex]r × ( 175 )³  =  [tex]\frac{1}{6}[/tex] × 62.4 × ( 175 )³

M₁ = 55737500

Also, When H = 185 ft

M₂ =  [tex]\frac{1}{6}[/tex]r × ( 185 )³  =  [tex]\frac{1}{6}[/tex] × 62.4 × ( 185 )³

M₂ = 65848900

∴ Increase in overturning moment will be;

⇒ M₂ - M₁ = 65848900 - 55737500

⇒ 10111400 ≈ 10.1 × 10⁶ lb.ft/ft

Therefore, the increase in the overturning moment is 10.1 × 10⁶ lb.ft/ft

Option c) 10.1 × 10⁶ lb.ft/ft id the correct answer

Answer:

Explanation:

I do not have access to your diagram but based on what I know, a food web cannot sustain itself without decomposers. They are the main guys who break down dead animals, plants into organic or inorganic nutrients which are needed by the primary producers to grow. So if decomposers are not there then producers cannot produce and thus herbivores cannot live and carnovers die out as well. Hope this makes sense.

Check out: https://www.nationalgeographic.org/encyclopedia/decomposers/

A food web cannot sustain itself without decomposers. They are the main components who break down dead animals, plants into organic or inorganic nutrients which are needed by the primary producers to grow.

Decomposers are living organisms like fungi and bacteria. These decomposers are heterotrophic which means they must take the nutrients and it cannot make its own food. Decomposers play an eminent role in an ecosystem because of their process of nutrition.

They break down the dead plants and the animals. These break down the waste of the organisms. They are very eminent for all the ecosystem. If these were not in the ecosystem, the plants cannot get essential nutrients, dead matter and waste would deposit. So the nutrients in them gets recycled back so that they can be used again.

When fish dies, there is nothing which is ingested and the bladder air starts to release, which causes the fish to sink to the bottom. After few days, the internal organs of the dead fish gets decomposed, after which a gas is formed.

Therefore, A food web cannot sustain itself without decomposers.

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Answer:

B. The website's certificate still has the old bank's name

Explanation:

MRK ME BRAINLIEST PLZZZZZZZ

Answer:

to claim your answer $2 Approach www.gotit-pro.com

Explanation:

Answer:

Kirchhoff's current law (1st Law) states that the current flowing into a node (or a junction) must be equal to the current flowing out of it

Explanation:

The answer is number 2) Increase the resistance of the concrete to freeze-thaw damage.

Air entrainment is used in concrete to Increase the resistance of the concrete to freeze thaw damage.

Microscopic air bubbles embedded in the concrete's surface reduce internal pressure by creating little spaces for water to expand into during freeze-thaw cycles.

Without these pockets, water has nowhere to escape, which causes concrete to crack and/or scale, severely reducing the lifespan of a structure. An air entraining additive, or AEA, is used to add air to the concrete mix.

To fit the requirements of the task at hand, a mix's air content can be changed. When pouring concrete in locations that experience freeze-thaw conditions, using air-entrained concrete is advantageous.

Therefore, Air entrainment is used in concrete to Increase the resistance of the concrete to freeze thaw damage.

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Solution :

The treatment system will operate as the well mixed chamber.

Disinfection rate constant for the UV light, k is 7.80 /s. Number of bacteria in water need to be reduced by 99.9%

Percent reduction of bacteria should be [tex]$(1-10^{0.99}) \times 100 =89.7\%$[/tex]

Volume of the unit chamber is fixed at 2L

Assume the inlet concentration, [tex]$C_0$[/tex] as 1000

The outlet concentration of bacteria, C should be [tex]$1000-\left(1000 \times \frac{89.7}{100}\right)$[/tex]

                                                                                  = 103

The well mixed chamber will then follow a completely mixed flow reactor model.

Compute the time required :

[tex]$t=\frac{1}{k}\left(\frac{C_0}{C}-1\right)$[/tex]

[tex]$t=\frac{1}{7.8}\left(\frac{1000}{103}-1\right)$[/tex]

  = 1.115 s

Flow through the system is    [tex]$\frac{2 \ L}{1.115 \ s}$[/tex]  = 1.79 L/s

The amount of water treated during the 10 hours of sunlight is 1.79 x 10 x 60 x 60 = 64440 L

Answer:

i. 3600 rpm ii. 377 rad/s

Explanation:

(a) What is the mechanical synchronous speed in rad/sec and in rpm

i. The mechanical synchronous speed in rpm

The mechanical synchronous speed in rpm, N = 120f/P where f = frequency = 60 Hz and P = number of poles = 2

So, N = 120f/P = 120 × 60 Hz/2 = 60 × 60 = 3600 rpm

ii. The mechanical synchronous speed in rad/s

We now convert N to rad/s by multiplying by 2π/60

So, the mechanical synchronous speed in rad/s , N' = 3600 rpm × 2π/60 = 60 × 2π = 120π rad/s = 377 rad/s

Answer:

Below is the response to the given question:

Explanation:

The relevant services supplied through TechMahindra Digital Services Provider are among the different options given in n inquiry. This is a digital company that has offered its customers an end-to-end solution that digitalizes all the requirements for client operations. It offers digital solutions, services cloud-based, digital marketing strategies, and then all client needs.

Answer:

USDA has developed strict measures of quality for products such as grains, rice, corn, and beans. Quality grading is based on the standards developed for each product. Quality grades provide a common language among buyers and sellers, which in turn assures consistent quality for consumers.

Explanation:

Answer:

Explanation:

B evaporator outlet: on the suction line between the evaporator and the compressor

Answer:

The lunar radiation environment, allowing scientists to determine potential impacts to astronauts and other life. It also will test models on the effects of radiation and measure radiation absorption by a type of plastic that is like human tissue. The results could aid in the development of protective technologies to help keep future lunar crew members safe. CRaTER was built and developed by Boston University and the Massachusetts Institute of Technology in Boston.

Answer:

Ammeter

Explanation:

Instrument for measuring either direct or alternating electric current, in amperes. Ammeters vary in their operating principles and accuracies

Answer:

ammeter is used to measure electric current.

Answer:

Option D, Ground Wire

Explanation:

Oleg is a mustimeter or multi tester or a basic voltage tester which is used to test the ground. The main purpose of the tester is to ensure that the outlet is connected to the ground of the circuit, thereby ensuring its proper functioning.

Hence, option D is correct

Answer: b) circuit breaker interrupt

Explanation:

Wires connect to outlets through terminals and these terminals need to be tight to ensure that electricity flows with the minimum amount of resistance.

If the terminal is poorly tightened, what happens is that resistance will build up as the appliance is being used and this resistance will make the terminal hotter.

The heat will continue to rise until the circuit breaker trips to interrupt the circuit and protect the appliance.

Answer:

Its specific resistance will be around 0.015

Answer:

[tex]4:1[/tex]

Explanation:

[tex]N_p[/tex] = Number of turns of primary coil = 200

[tex]N_s[/tex] = Number of turns of secondary coil = 50

The transformer turn ratio is given by

[tex]\dfrac{N_p}{N_s}=\dfrac{200}{50}[/tex]

[tex]\Rightarrow \dfrac{N_p}{N_s}=\dfrac{4}{1}[/tex]

[tex]\Rightarrow \dfrac{N_p}{N_s}=4:1[/tex]

The transformer turn ratio is [tex]4:1[/tex].

Answer:

a) 5.94* 10^6 psi

b) Pc =  683.06 kips  ( load carried by concrete )

   Ps = 0.098 * 683 .06 = 66.94 kips ( load carried by steel )

c)  126.47 In^2

Explanation:

A)

Er = Ec * Ac + Es *As ------- ( 1 )

where : As ( cross sectional area of steel )= 1.8% = 0.018

           Ac = 1 - 0.018 = 0.982

back to equation 1

modulus of elasticity =  ( 5.5 * 10^6 * 0.982 )  + ( 30 * 10^6 * 0.018 )

= 5.94* 10^6 psi

B)

Ps = 0.098 Pc

Given that : Ps + Pc = 750 kips

                  0.098 Pc + pc = 750 kips

therefore ; Pc = 750 kips / 1.098

Pc =  683.06 kips  ( load carried by concrete )

Ps = 0.098 * 683 .06 = 66.94 kips ( load carried by steel )

c) Determine the minimum required cross-sectional area of the column (Ag)

given that allowable compressive force ( Pac ) = 5500 psi

Ac = 0.982 * Ag

Pc = Pac * Ac

683.06 = 5500 * 0.982 * Ag

∴ Ag = 126.47 In^2

Answer:

True.

Explanation:

The compressibility of a fluid can be defined as a measure of the change in volume (density) with respect to the amount of pressure applied to the fluid. Thus, as the pressure of a compressible fluid increases, both its viscosity and density increases.

Some examples of compressible fluids are vapors, gases, air etc.

Additionally, the compressibility of fluids plays a significant role in the field of science such as in aerodynamics, fluid mechanics, thermodynamics etc.

Viscosity can be defined as a quantity expressing the magnitude of internal friction that restricts the ease of flow between parallel layers at some distance apart having unit speed relative to each other.

These properties of fluids, including viscosity and compressibility are usually being studied by engineers such as civil engineers, in order to test the efficiency of systems under given conditions.

Answer:

true

Explanation:

edge

Answer:

hello some data related to your question is missing attached below is the missing data

answer : 63700 Ib/hr

Explanation:

Given data :

Limestone mix : consists of  94% CaCO3  and 6% inert material

Actual feed rate = 36,000 Ib/hr

SO2 in flue gas = 20,314 Ib/hr

FGD efficiency = 97%

resulting sludge contains 58% solids

Calculate the Total sludge production rate

First : determine  SO2 removed in sludge

 = 0.97 * 20314

 = 19704.58 Ib/hr

next : moles of SO2 removed

= 19704.58 / 64 Ib/ Ib mol

= 307.88 Ib mol / hr

also  moles of CaSO3 produced = 307.88 Ib mol / hr

mass of CaSO3 = 307.88 * 120 = 36946.09 Ib/hr

Therefore Total sludge production rate

= 36946.09 / 0.58

= 63700.15  Ib/hr

Answer:

8.5 days

Explanation:

Given data :

Flow ( Q ) = 2.6 MGD = 11819.834 m^3/day

BOD = 131 mg/L

BOD loading rate = 35 Ibs/1000 ft^3   per day = 0.5606 kg/m^3/day

Calculate the sludge age of the facility

Given  the BOD  applied to the aeration tank  = 11819.834 m^3/day * 131mg/l

                                                                            = 1548.398 kg/day

first calculate the volume of the aeration tank

V = BOD applied / BOD loading rate

V = 1548.398 / 0.5606 = 2762.03 m^3

Hydraulic Detention time = V / Q

                                          = 2762.03 / 11819.834  = 0.2336 day = 5.6 hour

next : determine the mass rate of the waste

= 44% * 0.5606 kg/m^3/day

= 0.2466 kg/m^2/day

finally determine the sludge age

= V * Xt / ∅w * R

= ( 2762.03 m^3 * 2100 * 10^-3 ) / ( 0.2466 * 2762.03 kg/day )

= 8.5 days

Solution :

According to the question, the following datasheet contains eight items representing the colored points o the x-y plane.

We have to use this data as training set to run the k-nearest classification algorithm to decide most likely color for a new item with x = 3 and y = 3.

The distance between the points is actual distance on x-y plane, called as Eucledian distance.

We will make a data table, by calculating distance from (3, 3) of each point. By using formula :

Distance, [tex]$d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$[/tex]

x      y    Color       Distance from point (3, 3)

1       1     Red         [tex]$\sqrt{(3-1)^2+(3-1)^2} = 2.82$[/tex]

1      3    Green      [tex]$\sqrt{(3-1)^2+(3-3)^2} = 2$[/tex]              

2     5    Blue         [tex]$\sqrt{(3-2)^2+(3-5)^2} = 2.23$[/tex]      

3     5   Green       [tex]$\sqrt{(3-3)^2+(3-5)^2} = 2$[/tex]

4     1    Blue          [tex]$\sqrt{(3-4)^2+(3-1)^2} = 2.23$[/tex]

4     4   Red          [tex]$\sqrt{(3-4)^2+(3-4)^2} = 1.41$[/tex]

5     3   Blue        [tex]$\sqrt{(3-5)^2+(3-3)^2} = 2$[/tex]

5     4   Green     [tex]$\sqrt{(3-5)^2+(3-4)^2} = 2.23$[/tex]

Now, we will do sorting of colors with distance in ascending order.

We get, [ Red, Green, Green, Blue, Blue, Blue, Green, Red]  

Now if we run the algorithm with k = 1, then we pick only 1 color having the shortest distance that will be assigned to the given point.

Therefore the color is RED.

If we run the algorithm with k = 4, we will pick up [tex]$4 \text{ colors}$[/tex] with shortest distance which are [tex]$\text{red, green, green, blue}$[/tex]. Since, now we know, Green has the greatest frequency among 4, hence the answer is Green.

Answer:

I think trains are pretty awesome. There's a train in japan that levitates slightly and runs on magnetism. Pretty amazing. It's super fast too

Answer:

Student A

Explanation:

There is no reason to solder a wire nut connection because the nut already makes a mechanical connection.

Answer:

currently states that a person is qualified to drive a commercial motor vehicle if he/she “can read and speak the English language sufficiently to converse with the general public, to understand highway traffic signs and signals

So I think B

Answer:

The right solution is:

(a) 24 sec

(b) 24 sec

Explanation:

The given values are:

Water inlet's flow rate,

= 0.4 m³/s

Water outlet's flow rate,

= 0.2 m³/s

(a)

The volume of water filled will be:

= [tex]Area(height)[/tex]

= [tex]12(4.4-4)[/tex]

= [tex]12\times 0.4[/tex]

= [tex]4.8 \ m^3[/tex]

Opening to closing time taken will be:

= [tex]\frac{4.8}{0.2}[/tex]

= [tex]24 \ sec[/tex]

(b)

Inlet's flow rate,

= 0

Outlet's flow rate will be:

= 0.2 m³/s

Closing to opening time taken will be:

= [tex]\frac{4.8}{0.2}[/tex]

= [tex]24 \ sec[/tex]

a. The time taken for the valve opening to closing is 24 seconds.

b. The time taken for the valve closing to opening is 24 seconds.

a.

First we need to determine the volume of the water

= Area * height

= 12*(4.4-4)

= 12*0.4

= 4.8

Now the time taken should be

= 4.8/0.2

= 24 seconds.

b. The time taken should be

= 4.8/0.2

= 2.4 seconds

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Answer: The velocity of a motor cyclist who travelled a distance of 200 m in 10 seconds is 20 m/sec.

Explanation:

Given: Distance = 200 m

Time = 10 seconds

Formula used to calculate velocity is as follows.

[tex]Velocity = \frac{Distance}{Time}[/tex]

Substitute the value into above formula as follows.

[tex]Velocity = \frac{Distance}{Time}\\= \frac{200 m}{10 sec}\\= 20 m/sec[/tex]

Thus, we can conclude that the velocity of a motor cyclist who travelled a distance of 200 m in 10 seconds is 20 m/sec.