Answer:
increase the field strengthincrease the currentdecrease the moment of inertia of the coilExplanation:
The rotation speed depends on the force applied to the coil, and on the mass (moment of inertia) of the coil. The force can be increased by ...
increasing the magnetic field strength
increasing the coil current
And the moment of inertia can be decreased by ...
making the coil lighter
making the coil more compact.
Any of these changes will increase the rotation speed.
Q4. (assessment criteria 3. 1) state newton's law of cooling and define the terms in the equation. 1. 2. Obtain the solution when the initial liquid temperature is 100 c, the ambient temperature is 2 and the thermal time constant is 60 min. 3. Plot the solution. Remember to label the axis. 4. Calculate the fluid temperature after one time constant.
calculate the length of the resistor of a circular wire in a heater element connected to a 240V supply and the heater consumes 8 joules of energy in 0,25 seconds.The resistor element is made of aluminium and it has a uniform cross-sectional area with a diameter of 0,00016 inches.
hint: 1 inch=25,4 MN, resistivity of aluminium=2,825×10^-6 cm ohms
Answer:
82.7 cm or 32.5 in
Explanation:
The required resistance is calculated from the relationship of power, voltage, and resistance. The wire length to give that resistance is calculated from ...
L = A·R/ρ
The power is the ratio of energy to time:
P = E/t = (8 J)/(0.25 s) = 32 W
The required resistance is ...
R = V²/P = (240 V)²/(32 W) = 1800 Ω
__
Then the required wire length is ...
L = (π/4)(0.00016 in × 2.54 cm/in)²×(1800 Ω)/(2.825×10^-6 Ω·cm)
L ≈ 82.65 cm
The length of aluminum wire required is about 82.7 cm or 32.5 in.
_____
Additional comment
This wire is roughly 66 AWG, about 1/6 the diameter of a human hair. Its melting current in still air is likely well below the current it carries in this heater. That is, it probably needs to experience significant airflow in order to maintain its integrity.
An elevation is.... * 10 points a. A detailed description of requirements, composition and materials for a proposed building. b. A view of a building seen from one side, a flat representation of one façade. This is the most common view used to describe the external appearance of a building. c. The development of the last remaining lots in an existing developed area, the new development within an area already served by existing infrastructure and services, or the reuse of already developed, but vacant properties. d. The practice of creating structures and using processes that are environmentally responsible and resource-efficient throughout a building's life-cycle from siting to design, construction, operation, maintenance, renovation and deconstruction.
Answer:
b. A view of a building seen from one side, a flat representation of one façade. This is the most common view used to describe the external appearance of a building.
Explanation:
An elevation is a three-dimensional, orthographic, architectural projection that reveals just a side of the building. It is represented with diagrams and shadows are used to create the effect of a three-dimensional image.
It reveals the position of the building from ground-depth and only the outer parts of the structure are illustrated. Elevations, building plans, and section drawings are always drawn together by the architects.
Hi, I need a hand please.
Describe how you would use principles of series circuit to analyze a parallel circuit. What formulas used in a series circuit analysis would not apply?
Answer:
The principles of a series circuit that can be used to analyze a parallel circuit is that of calculating total resistance in the circuits.
The formula used in a series circuit analysis for finding total resistance is different from that used in a parallel circuit for finding overall resistance. i.e.
For a series circuit total resistance Rt={R1+R2+R3+.......Rn}
For a parallel circuit, total resistance 1/Rt ={1/R1+1/R2+1/R3+.....1/Rn]
Explanation:
In a series circuit, the current passing through each component is the same where as in a parallel circuit the voltage through each component is the same.
The principles of series circuit that can be used to analyze a parallel circuit is that of calculating total resistance in the circuits. In a series circuit, total resistance is calculated as the sum of resistance of the components connected to the circuit, where as in a parallel circuit, overall resistance is the summation of the resistance of individual components.
This means you can use principles of series circuit to find total resistance then use that value to confirm the individual resistance values of components in a parallel circuits. This is possible because you will have the expected total resistance [calculated from the series circuit], then the sum of resistance of the same but individual components now in the parallel circuit should be equal to the total resistance calculated from the series circuit.
The formula for calculating resistance in series circuit given as :{Rt= R1+R2+R3+.......Rn} where Rt is the total resistance and R1,R2,R3...Rn are the values of individual components in the series circuit, can not be used in finding overall resistance in a parallel circuits because the formula for total resistance will change to : [1/Rt =1/R1+1/R2+1/R3+.....1/Rn]
An entrepreneur buts a computer from a manufacturer for $975. Calculate
the selling price if he makes a profit of 25%.
Answer:
1218.75
Explanation: If he makes a 25% profit, he needs to sell it for 125% of the computer price. 1.25*975 is 1218.75
Problem 2 (20 points): Three prismatic bars, two of material A and one of material B, transmit a tensile load P. The two outer bars (material A) are identical. The cross-sectional area of the middle bar (material I} B) is 50% larger than the cross-sectional area of the outer bar. Also, the modulus of elasticity of material A is twice that ofmaterial B. Find: (a) What fraction ofthe load Pis transmitted by the middle bar? (b) What is the ratio of the stress in the middle bar to the stress in the outer bars? (c) What is the ratio of the strain in the middle bar to the strain in the outer bars
Answer:
you said 20 points
Explanation:
Please give me the answers
Answer:
the 4th one
Explanation:
no id you can't drive
This car is parked. The engine is off and there is no music playing, What energy is currently in use?
Answer:
Potential energy
Explanation:
"Potential energy" is a type of energy an object has when it's at rest or in this case not moving. The car is parked, and the engine is off, that means there is no electrical, kinetic, thermal, or mechanical energy in play since the engine isn't running and the car isn't moving. The radio is off too so that means there is no sound energy or electric energy (again) in play either. You are just parked with the car completely shut off, but you do have the potential to move the car by turning on the engine and start driving, which means potential energy is currently in use.
Hope this helps.
Consider a convergent duct with an inlet area A1 = 5 m2. Air enters this duct with a velocity V1=10m/s and leaves the duct exit with a velocity V2=30 m/s.
Required:
a. What is the area of the duct exit?
b. If the air pressure and temperature at the inlet area are 1.2 x105 N/m2, and 300K, respectively, what is the pressure at the exit?
Answer:
(a) The area of the duct exit is 1.67 m²
(b) The air pressure at the exit is 1.195 x 10⁵ N/m²
Explanation:
Given;
inlet area, A₁ = 5 m²
inlet velocity, V₁ = 10 m/s
exit velocity, V₂ = 30 m/s
(a) The area of the duct exit is determined by applying continuity equation;
A₁V₁ = A₂V₂
Where;
A₂ is the area of the duct exit
A₂ = (A₁V₁) / (V₂)
A₂ = (5 x 10) / (30)
A₂ = 1.67 m²
(b) Apply Bernoulli’s equation to determine the pressure at the exit;
[tex]P_1 + \frac{\rho V_1^2}{2} = P_2 + \frac{\rho V_2^2}{2}\\\\P_2 = P_1 + \frac{\rho V_1^2}{2} - \frac{\rho V_2^2}{2}\\\\P_2 = P_1 + \frac{\rho }{2} (V_1^2 - V_2^2)[/tex]
Density of air at 300k = 1.177 kg/m³
[tex]P_2 = P_1 + \frac{\rho }{2} (V_1^2 - V_2^2)\\\\P_2 = 1.2*10^5 \ + \ \frac{1.177}{2} (10^2 - 30^2)\\\\P_2 = 1.2*10^5 \ + \ -470.8\\\\P_2 = 1.195*10^5 \ N/m^2[/tex]
Therefore, the air pressure at the exit is 1.195 x 10⁵ N/m²
The Stefan-Boltzmann law can be employed to estimate the rate of radiation of energy H from a surface, as in
H = Aeσ^4
where H is in watts, A = the surface area (m^2 ), e = the emissivity that characterizes the emitting properties of the surface (dimensionless), σ = a universal constant called the Stefan-Boltzmann constant (= 5.67 x 10^8 W m^2 K^-4 ), and T = absolute temperature (K).
Required:
Determine the error of H for a steel plate with A = 0.15 m^2 , e = 0.90, and T 5 650 ± 20.
b. Compare your results with the exact error. Repeat the computation but with T = 650 ± 40. Interpret your results.
Explanation:
A.
H = Aeσ^4
Using the stefan Boltzmann law
When we differentiate
dH/dT = 4AeσT³
dH/dT = 4(0.15)(0.9)(5.67)(10^-8)(650)³
= 8.4085
Exact error = 8.4085x20
= 168.17
H(650) = 0.15(0.9)(5.67)(10^-8)(650)⁴
= 1366.376watts
B.
Verifying values
H(T+ΔT) = 0.15(0.9)(5.67)(10)^-8(670)⁴
= 1542.468
H(T+ΔT) = 0.15(0.9)(5.67)(10^-8)(630)⁴
= 1205.8104
Error = 1542.468-1205.8104/2
= 168.329
ΔT = 40
H(T+ΔT) = 0.15(0.9)(5.67)(10)^-8(690)⁴
= 1735.05
H(T-ΔT) = 0.15(0.9)(5.67)(10^-8)(610)⁴
= 1735.05-1059.83/2
= 675.22/2
= 337.61
identifies potential new customers and preserves favorable business relationships with past customers
❎❎❎❎❎❎❎ sorry but that didn't help me that much
Question 1 A design team completes their high-fidelity prototype of a responsive website. Before they hand off designs to the engineering team, they need to confirm that the designs are final. What questions should they answer before handing off the designs
A question the design team should answer before handing off the designs is: are the designs a true representation of the intended end user experience?
What is a website?A website can be defined as a collective name that is used to describe series of webpages that are interconnected or linked together with the same domain name.
In Computer technology, the main goal of a high-fidelity prototype is to understand how end users would interact with a website and areas to improve the design.
In conclusion, the design team should answer whether or not the designs are a true representation of the intended end user experience before handing off the designs.
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What are the 2 main sources of data
Following are the two sources of data:
Internal Source. When data are collected from reports and records of the organisation itself, it is known as the internal source. ... External Source. When data are collected from outside the organisation, it is known as the external source.IamSugarBee
Answer:
I hope this helps
Explanation:
.... Internal source
.... External source
Consider a carbon fiber reinforced epoxy composite. The fibers are continuous, unidirectionally aligned and 40% by volume. The tensile strength of carbon fibers is 2998 MPa, and the Young's modulus is 214 GPa. The tensile strength of the epoxy matrix is 100 MPa, and its Young's modulus is 3 GPa.
Required:
a. Compute the Young's modulus and the tensile strength of the composite in the longitudinal direction.
b. What is Young's modulus in the longitudinal direction?
Answer:
- the Young's modulus of the composite in the longitudinal direction = 87.4GPa.
- The tensile strength of the composite in the longitudinal direction = 1.26 × 10⁹.
Explanation:
The following parameters or data were given in this particular question/problem;
1. "The fibers are continuous, unidirectionally aligned and 40% by volume."
2." The tensile strength of carbon fibers is 2998 MPa, and the Young's modulus is 214 GPa."
3. " The tensile strength of the epoxy matrix is 100 MPa, and its Young's modulus is 3 GPa."
So, let us delve right into the solution to this question:
[ kindly note that part b. of this problem is the same as the part a. of the problem
Also, in point 2. above 2998MPa = 2.998 =GPa, approximately 3GPa].
40% = 40/100 = 0.4. Therefore, 1 - 0.4 = 0.6. Hence, the Young's modulus of the composite in the longitudinal direction = 3 × 0.6 + 214 × 0.4 = 1.8 + 85.6 = 87.4GPa
The tensile strength of the composite in the longitudinal direction = 100 × 10⁶ × 0.6 + 3 × 10⁹ ₓ 0.4 = 1.26 × 10⁹.
Witch type of wetland has shollow water or streams.
which condition results from alcohol consumption and causes swelling and inflammation of the liver?
Answer:
Alcoholic hepatitis
Explanation:
Hepatitis is a condition that involves inflammation of the liver. When the liver is inflamed, it swells as a result of tissue injury or infection, which can lead to its damage. Hepatitis can be acute (short-term) or chronic (long-term).
Alcoholic hepatitis is a type of hepatitis caused by excessive consumption of alcohol. It is most likely to occur in people who drink heavily over a long period of time, and rarely occurs in those who drink large amounts of alcohol in a short time.
What is the most common impediment to communication in cross functional team
Answer:
Conflicting goals. Specialised jargon. Unequal responsibilities
Think about the ineffective leaders (bosses, coaches, etc.) you have experienced. What dark-side traits did these leaders possess that caused them to be ineffective?
The dark-side traits the leaders possessed that caused them to be ineffective are; Narcissism, Psychopathy and Machiavellianism.
What are bad character traits?
According to Paulhus and williams, they discovered in year 2002 that several personality traits could be related to failures of a leader but they narrowed it down to three which they referred to as the Dark Triad.
These dark side traits are;
NarcissismPsychopathyMachiavellianismRead more about character traits at; https://brainly.com/question/24856057
Which option identifies why the design in the following scenario represents a green engineering design solution?
Emily has just redesigned a toy car. The materials she used were once parts of automobiles that were taken to recycling plants.
✔️She is incorporating existing materials.
✔️She is discovering new materials.
✔️She is reducing waste through choice of materials.
✔️She is developing new materials.
The option that identifies why the design in the following scenario represents a green engineering design solution is option C: She is reducing waste through choice of materials.
What does it mean to reduce waste?Anything that lowers waste by starting with less material is considered a waste reduction. Using both sides of a piece of paper, purchasing items in bulk rather than individually packaged, or using ceramic mugs instead of disposable ones are all easy ways to reduce waste.
Therefore, the way that Emily is using tends to lowers greenhouse gas emissions, conserves energy, and generates employment. You may contribute to pollution prevention and environmental protection by lowering the quantity of waste you produce. You also save money, protect natural resources, and reduce the quantity of waste that ends up in landfills.
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Answer:
She is Incorporating existing materials
Explanation:
If total surface flow 144 million acre-foot is spread over 881,913 km², Estimate the depth of water?
Answer:
20.1 cm
Explanation:
The depth is the ratio of volume to area.
[tex]\dfrac{1.44\times10^8\text{ ac$\cdot$ft}}{8.81913\times10^5\text{ km}^2}=\dfrac{(1.44\times10^8)(4.356\times10^4\text{ ft}^3)(0.3048\text{ m/ft})^3}{(8.81913\times10^5\text{ km}^2)(10^3\text{ m/km})^2}\\\\=\dfrac{1.44\times4.356\times0.3048^3\times10^{12}}{8.81913\times10^{11}}\text{ m}\approx0.2014\text{ m}[/tex]
The depth of water is about 20.1 cm.
_____
Additional comment
An acre-foot is 43,560 cubic feet.
A foot is 0.3048 meters.
A kilometer is 1000 meters.
A centimeter is 0.01 meters.
A strip footing of width 3 m is founded at a depth of 2 m below the ground surface in a (c – 0) soil having a cohesion c = 30 kN/m2 and angle of shearing resistance 0 = 35°. The water table is at a depth of 5 m below ground level. The moist weight of soil above the water table is 17.25 kN/m3. Determine the find ultimate bearing capacity of the soil.
Using Terzagi's Equation as shown in the attachement;
Qa = 4225 kN/m
As per the given data, the ultimate bearing capacity of the soil is 313 kN/[tex]m^2[/tex]
What is bearing capacity?Bearing capacity is the capacity of soil to support loads applied to the ground in geotechnical engineering.
To determine the ultimate bearing capacity of the soil, we can use the following formula:
q_ult = cN_c + 0.5γ*(BN_q + 0.4N_g*(B - B_f)*N_q)
To find the values of N_c, N_q, and N_g, we can use the following equations:
N_c = [cot(0) + tan(φ)][1 + 0.2(B_f/D)][(N_q/N_c) - 1][(N_q/N_c) - 2]
N_q = [(1 + sin(0))(1 - sin(0))][(N_q/N_c) - 1]
N_g = 0.5*(N_q - 1)*tan^2(φ)
Using the above equations, we can calculate the values of N_c, N_q, and N_g as follows:
N_c = [cot(35°) + tan(35°)][1 + 0.2(3/2)][(2.45/N_c) - 1][(2.45/N_c) - 2] ≈ 11.5
N_q = [(1 + sin(35°))(1 - sin(35°))][(2.45/N_c) - 1] ≈ 10.5
N_g = 0.5*(10.5 - 1)*[tex]tan^2[/tex](35°) ≈ 2.6
Substituting these values into the formula for q_ult, we get:
q_ult = 3011.5 + 0.517.25*(310.5 + 0.42.6*(3 - 3)*10.5) ≈ 313 kN/m^2
Therefore, the ultimate bearing capacity of the soil is approximately 313 kN/m^2.
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Create a Reverse application that stores the number corresponding to the element's index in an integer array of 10 elements. For example, the second element, which has index 1, should store 1. The application should then display the title "Countdown" and then list numbers stored in the array in reverse order.
Answer:
Written in Java
public class MyClass {
public static void main(String args[]) {
int [] myarray = new int[10];
for(int i = 0;i<10;i++) {
myarray[i] = i;
}
System.out.println("Countdown");
for(int i = 9;i>=0;i--) {
System.out.println(myarray[i]);
}
}
}
Explanation:
This line declares the array
int [] myarray = new int[10];
The following iteration inserts 0 to 9 into the array
for(int i = 0;i<10;i++) {
myarray[i] = i;
}
This line prints "Countdown"
System.out.println("Countdown");
The following iteration prints the array in reverse order
for(int i = 9;i>=0;i--) {
System.out.println(myarray[i]);
}
Research new and upcoming “Green Designs” for any plumbing or electrical system in either in the residential or commercial arena. Describe what the idea is and what it does that makes it considered to be a green design and discuss how it is installed and interconnected with the rest of the mechanical and electrical systems within a project. Your paper should be in accordance with APA format. Using one inch margins, the body of the paper is to be between three and four pages. Your paper must also include a title page and reference page(s). An abstract is not required for this assignment. Your paper must include at least two references outside of your text book.
The use of solar power, hydropower system and geothermal systems are an upcoming trend in plumbing or electrical system.
What is green design?Green design is known to be a kind of product or system that is said to be reserved for those areas of design that are said to be consciously working to make the end product a sustainable and ecologically feasible one
Note that Green design is made in numerous fields such as, in car and plumbing or electrical system to save time and money.
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Tru or false A tractor is experiencing a reduction in pressure the amount of force this will result in decreasing the Propulsion of the tractor
Answer:
true
Explanation:
i took the test and got it right
All of these are true about aluminum EXCEPT that it:
A) has a self-healing, corrosion-resistant coating,
B) is resistant to galvanic corrosion
C) is a nonferrous metal,
D) is easy to be initially formed,
The option which is not a property of the metal aluminium is; Option B; is resistant to galvanic corrosion
What are the properties of aluminum metal?Aluminum is a non - ferrous metal that is lightweight, durable, malleable and corrosion-resistant (not galvanic) which is widely used for components in the transportation and construction industries. Its's properties includes;
Non-corrosive.Easily machined and cast.Lightweight yet durable.Non-magnetic and non-sparking.Good heat and electrical conductor.From all the listed properties and explanations, it is clear that the only option among those given that is not a property of aluminum is Option B
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Explain three examples of workshop
Answer:
Invitational Workshop
An invitational workshop is what many of us know. It’s what Lucy Calkins has made famous through the Reading and Writing Workshop. In the invitational workshop, the instructor usually hosts a minilesson. This minilesson is intended to meet the needs of the majority of children in the classroom. Afterward, the children are “invited” to employ the skills or strategy for the minilesson during workshop time, where students work independently or in small groups
Explanation:
Answer:
Here are 5 examples:
Invitational WorkshopConstructivist WorkshopReflection WorkshopConferencing WorkshopChoice WorkshopExplanation:
I hope this helps!
Consider an unpipelined processor where it takes 8ns to go through the circuits and 0.2ns for the latch overhead. Assume that the Point of Production and Point of Consumption in the unpipelined processor are separated by 4ns. Assume that one-third of all instructions do not introduce a data hazard and two-thirds of all instructions depend on their preceding instruction.
Required:
What is the throughput of the processor (in BIPS) for (i) an unpipelined processor, (ii) a 10-stage pipeline, and (iii) a 20-stage pipeline.
Answer:
i) 125 * 10^9 i
ii) 5.2 ns
iii) 4.8 ns
Explanation:
i) The throughput of the processor for an unpipelined processor
= [tex]\frac{1}{8*10^9} = \frac{10^9}{8 }[/tex] = 125 * 10^9 instructions per set
ii ) for a 10-stage pipeline
1st instruction :
= 0.2 + 8ns/10
= 0.2 + 0.8 = 1ns
2nd instruction
= 0.2 + 1 + 4
= 5.2 ns
iii). for a 20-stage pipeline
1st instruction
= 0.2 + 8ns/20
= 0.2 + 0.4 = 0.6 ns
2nd instruction
= 0.2 + 0.6 + 4
= 4.8 ns
What is the dumbest way you’ve been injured?
Answer:
Once when I was playing a soccer game I tripped over the ball then a heavy girl accidentally ran over my hand and that's how I fractioned my finger
Explanation: i-
in an operating system the scheduler perform the task of assigning ___processes to ___
The task of the scheduler in an operating system is; Assigning system processes to Run queue.
What is a Scheduler in OSSchedulers as their name implies are special system software which handle process scheduling in various ways. Their main objective is to select the jobs to be submitted into the system and to decide which process to run accordingly.
On this note, The OS scheduler determines how processes are moved between the ready and run queues which can only have one entry per processor core on the system;
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What are the two categories of tools? list examples of each. in agriculture