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:
please solve part two
Answer:
Wat part 2
Explanation:
Engineers study the properties of fluids, including viscosity and compressibility, to test the efficiency of systems under given conditions. True or False?
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
Calculate the velocity of a motor cyclist who travelled a distance of 200 min
10 seconds.
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.
In this worksheet, we will use the drag equations to calculate drag force. Assume the following:
1 liter bottle with radius = 40 mm.
The drag coefficient is 0.299 for the 150 mm long nose cone.
Velocity is 30 m/s.
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
The resistance of a copper wire 200 m long is 21 Q. If its thickness (diameter) is 0.44 mm, its specific resistance is around_______________?
Answer:
Its specific resistance will be around 0.015
A process fluid having a specific heat of 3500 J/kg-K and flowing at 2 kg/s is to be cooled from 80 C to 50 C with chilled water, which is supplied at a temperature of 15 C and a flow rate of 2.5 kg/s. Assuming an overall heat transfer coefficient of 2000 W/m2-K, calculate the required heat transfer areas for the following exchanger configurations: (a) parallel flow (15 pts), and (b) counterflow (15 pts).
Answer:
to claim your answer $2 Approach www.gotit-pro.com
Explanation:
5. According to the FMCSRs, you are qualified to operate a CMV if you:
A. are at least 15-years old.
B. have passed an IQ test.
C. have only one current CDL.
D. are currently disqualified from operating a motor vehicle.
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
Air entrainment is used in concrete to: __________.
1. Strengthen the concrete
2. Increase the resistance of the concrete to freeze thaw damage
3. Create a better surface appearance
4. Make the concrete easier to handle during placement
5. Help evaporate excess water from the curing concrete
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.
What is air entrainment?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.
To learn more about entrainment, refer to the link:
https://brainly.com/question/15180040
#SPJ2
A cell has an interesed resistance of 0.02 and an e.m.f mind of 2.0 V
Calculate its terminal p.d if it delivers 5A
Answer:
Answer:
(a) The terminal voltage of the cell is 1.9 V.
(b) The terminal voltage of the cell is 1.0 V.
Explanation:
If wrong sorry but if right please give brainliest
On a TXV system, the temperature sensing bulb is located at the
A condenser outlet
B evaporator outlet
C condenser inlet
D evaporator inlet
Answer:
Explanation:
B evaporator outlet: on the suction line between the evaporator and the compressor
Leticia radio is getting interference whenever she uses it in her dining room. What's the most likely reason/s.
Answer: D. There is a dimmer switch
Explanation:
Dimmer switches have been known to cause radio interference especially the solid state ones. To counter this, dimmer switches usually come with a component to suppress radio interference, this doesn't work for all dimmers and the cheaper dimmers are usually more prone to this problem.
If Leticia's dining room makes use of a dimmer switch, it is the most probable reason for radio interference.
describe an engineering advance that has led to greater knowledge about the solar system
Answer:
Space Rovers
Explanation:
The engineering advancement of the invention space rovers has changed space exploration tremendously. The first space rover ever to go out onto another planet was made by NASA and put on mars to learn more about the red planet and see if there where any plausible signs of past or maybe even present life. This mission was incredibly successful and for the first time in space exploration history, there was a spacecraft that you could move around that could with do the conditions of the planet for weeks, months, sometimes years at a time, moving around taking pictures and constantly collecting data. This was revolutionary for scientists, this way they could get copious amounts of information just on rover and not having to send multiple crafts only to die in the first few hours but sending back a relative amount of information. With rovers you can have them collect samples and bring the back to earth, not something that could’ve been done without a human, until rovers. They have completely changed and improved collecting data from other planets and have been one of the most revolutionary inventions when it comes to space exploration.
This is what I put for the answer, hope it helps in some way.
A short reinforced concrete column is subjected to a 750 kips axial compressive load. The Moduli of elasticity of plain concrete and steel are 5.5 and 30 million psi, respectively. The cross-sectional area of the steel is 1.8% of the reinforced concrete. Considering the column is made of composite material and subjected to a load parallel to the steel rebars, calculate the following:
a. the modulus of elasticity of the reinforced concrete.
b. the load carried by each of the steel and plain concrete.
c. the minimum required cross-sectional area of the column, given that the allowable compressive stress of the plain concrete is 5,500 psi and that the allowable compressive stress of plain concrete will be reached before that of steel.
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
Three district robots are being used today
Please help, I don't understand how to put this in CM
List three types of concurrent engineering in manufacturing.
Give three examples of concurrent engineering in manufacturing industries.
Answer:
A famous example of concurrent engineering is the development of the Boeing 777 commercial aircraft. The aircraft was designed and built by geographically distributed companies that worked entirely on a common product database of C A TIA without building physical mock-ups but with digital product definitions.
) Assuming different AM regulations; the receiver is using mixer with subtracting format. The frequency selectivity ratio is approximately 10 and the AM range is from 750 kHz to 2600 kHz. The intermediate frequeney is most nearly:
Answer:
[tex]F=710KHZ[/tex]
Explanation:
From the question we are told that:
Frequency selectivity ratio [tex]R=10[/tex]
AM range 750 kHz to 2600 kHz
Therefore Bandwidth is
[tex]B=2100-680[/tex]
[tex]B=1420KHZ[/tex]
Generally the equation for The intermediate frequency is mathematically given by
Intermediate frequency=\frac{Bandwidth}{2}
[tex]F=\frac{B}{2}[/tex]
[tex]F=\frac{1420}{2}[/tex]
[tex]F=710KHZ[/tex]
Which starting circuit uses fuses, switches, and smaller wires to energize a relay and solenoid?
Starter Main Circuit
Starter Control Circuit
Starter Ground Path
Battery Positive Cable
Answer:
Option B (Starter Control Circuit) is the right option.
Explanation:
This same switching is normally put upon this isolated side of something like the transmission Arduino microcontroller throughout the configuration that is using the ignition just to command the broadcast.It uses a secondary relay isolated to regulate electrical current throughout the solenoid starting system.All other given options are not related to the given instance. So the above option is correct.
Railroad tracks made of 1025 steel are to be laid during the time of year when the temperature averages 4C (40F). Of a joint space of 5.4 mm (0.210 in.) is allowed between standard rails of length 11.9 m (39 ft), what is the highest possible temperature that can be tolerated without the introduction of thermal stresses
Answer:
41.5° C
Explanation:
Given data :
1025 steel
Temperature = 4°C
allowed joint space = 5.4 mm
length of rails = 11.9 m
Determine the highest possible temperature
coefficient of thermal expansion ( ∝ ) = 12.1 * 10^-6 /°C
Applying thermal strain ( Δl / l ) = ∝ * ΔT
( 5.4 * 10^-3 / 11.9 ) = 12.1 * 10^-6 * ( T2 - 4 )
∴ ( T2 - 4 ) = ( 5.4 * 10^-3 / 11.9 ) / 12.1 * 10^-6
hence : T2 = 41.5°C
Student A says that wires on a screw-type terminal connection should be installed as shown in Figure A - 5 . Student 8 says that wire nut connections are a type of soldere connection. Which of the following statements is correct?
Answer:
Student A
Explanation:
There is no reason to solder a wire nut connection because the nut already makes a mechanical connection.
a poorly tighten terminal is often the cause of a/an ? a) open circuit b) circuit breaker interrupt c)short circuit d) ground fault
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.
in this image if the ground were removed from the neutral wire what would the voltage to ground be?
Answer:
240
Explanation:
Techm digital definition comprises of
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.
The website of a bank that an organization does business with has been reported as untrusted by the organization's web browser. Its security analyst has been assigned to investigate. The analyst discovers the bank recently merged with another local Bank in Combined Names. Additionally, the user's bookmark automatically redirects to the website of the newly-named bank. Which of the following is the most likely cause of this issue?
a) The company's web browser is not up to date
b) The website certificate still has the old bank’s name
c) The website was created to recently to be trusted
d) the website certificate has expired
Answer:
B. The website's certificate still has the old bank's name
Explanation:
MRK ME BRAINLIEST PLZZZZZZZ
A flow of 2.6 MGD leaves a primary clarifier with a BOD of 131 mg/L. Determine the aeration period (hydraulic detention time) of an activated sludge tank that has a BOD loading of 35 lbsper 1000 ft3per day. Determine the sludge age of the facility given the following data: VSS concentration is 2100 mg/L, and the mass rate of wasted sludge is equal to 44 percent of the BOD loading.
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
A key joint in a precision machining process has a lower specification limit of a width of 0.99 mm and an upper specification limit of 1.01 mm. The standard deviation is 0.005 mm and the mean is 1 mm. What is the process capability index for the precision machining process
Answer:
the process capability index for the precision machining process is 0.667
Explanation:
Given the data in the question;
Lower Specification Limits LSL = 0.99 mm
Upper Specification Limits USL = 1.01 mm.
The standard deviation σ = 0.005 mm
mean μ = 1 mm
capability index Cpk = ?
Cpk = min( USL - μ / 3σ, μ - LSL / 3σ )
we substitute
Cpk = min( 1.01 mm - 1 mm / 3(0.005 mm ), 1 - 0.99 mm / 3(0.005 mm) )
Cpk = min( 0.01 mm / 0.015 mm, 0.01 mm / 0.015 mm )
Cpk = min( 0.6666, 0.6666 )
∴ Cpk = 0.6666 ≈ 0.667
Therefore, the process capability index for the precision machining process is 0.667
ogla has mistakenly created a connection between the black and white wire. What has she created? A) open circuit B) SHORT CIRCUIT C) GROUND CIRCUIT D) AC
Answer:
B) SHORT CIRCUIT
Explanation:
Argue why electrode therapy is NOT the most effective treatment for brain disorders, and recommend an alternative treatment.
Answer:
Due to risk of damaging of brain.
Explanation:
The electrode therapy is not the most effective treatment for brain disorders because there are various other treatments which can treat the brain disorder without causing damage to the brain. electrode therapy greatly damaged the brain instead of treatment of brain disorder. Medication is the best way to treat brain disorder so that's why electrode therapy is not considered as the most effective treatment for brain disorders, and the doctors recommend an alternative treatment.
a transformer is built with 200 primary turns and 50 secondary turns. Whats the transformers turn rate? A) 1:4 B) 2:1 C) 1:2 D) 4:1
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].
Need help hurry 20 Briefly describe an idea for a new product, while thinking mainly about its cost analysis. Depict what kinds of direct and indirect costs will be involved in its creation.
Answer: Contaminants can cause tremendous harm to a population; not only humans but entire local animal species can be devastated by poisonous drinking water. Crops and livestock can also be affected. Citizens can make prudent choices regarding natural resources and energy use. Scientists can research and create products that can reduce or eliminate unnecessary waste and pollution.
Explanation: