Answer:
P = 0.204 W
Explanation:
Given that,
Voltage drop is 10 V to feed an LED from a 12 V power supply. The resistor value is 490 Ω.
We need to find how much of my battery power will be wasted in the resistor. The power of a battery is given in terms of voltage and resistance is given by :
[tex]P=\dfrac{V^2}{R}[/tex]
V is the voltage drop to feed an LED
Putting all the values,
[tex]P=\dfrac{(10)^2}{490}\\\\P=0.204\ W[/tex]
So, 0.204 W of power will be wasted in the resistor.
What is the first component to install in steel stud framing system?
fast shipping ,high quality product, fastan the floor and ceiling tracks ,
The basic idea behind eco-driving is to _____ with more thoughtful driving techniques and behavior.
A. decrease or eliminate fossil fuel consumption
B. save driving time
C. reduce your drag
D. avoid collisions
Answer:
The correct answer is A
Explanation:
No engine is perfectly efficient because?
A.society does not need efficient engines.
B.most fuel sources create environmental damage.
C.efficiency is not a goal in most engineering projects.
D.some energy will be lost to its surroundings when running.
Answer:
d
Explanation:
..............................
Explain how an enhanced fluid power system improved efficiency in the following scenario.
Oliver has designed a new dump truck that is emitting 50 percent less carbon and needs 60 percent less fuel to run. The savings will
allow his construction company to purchase two more vehicles.
HELP !!
Answer:
He can go a few places instead doing to many pit stops
Explanation:
Answer:
The correct answer is that the system may be equipped with microstructures to reduce the friction of the fluid.
Explanation:
Oliver may have implemented a regenerative braking system, decreasing the amount of energy lost in the braking process. He also may have eliminated valves. Valves are highly susceptible to wear in a fluid power system. He may have used an actuator instead.
please help
please i need to turn this in
Answer: 101 means "introductory something". The allusion is to a college course with the course code 101, which in the American system and probably others indicates an introductory course, often with no prerequisites.
Explanation:
The name Topher means Christ Bearer and is of American origin. Topher is a name that's been used primarily by parents who are considering baby names for boys. Short form of Christopher.
I am not sure but if this is a trick question then the answer lies with his name, so this is the best I got. Hope it helps!
metal that does not contain
iron
Answer:
aluminum, and copper
Explanation:
hope this helps I'm not 100% sure but I think that's right
Which best describes the charting method of note-taking?
O It requires more writing than other note-taking methods.
O It shows the most relevant information in a clear way.
O It does not show connections between facts and details.
O It does not rely on awareness of the categories covered.
The practice of taking notes is the process of capturing information from many sources and platforms. The correct option is B.
What is Note-taking?The practice of taking notes is the process of capturing information from many sources and platforms. By taking notes, the writer captures the substance of the material, relieving their mind of the burden of recalling everything.
The best description of the charting method of note-taking is that it shows the most relevant information in a clear way.
Hence, the correct option is B.
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The status of which of these determines the sequence in which output devices, such as solenoid values and motor contactors, are turned on and off?
A: Physical inputs and outputs
B: NO contract instructions
C: Output coil instructions
The status of physical inputs and outputs determines the sequence in which output devices, such as solenoid values and motor contactors, are turned on and off. The correct option is A.
What is output device?An output device is any piece of computer hardware that transforms data into a form that can be understood by humans or, historically, into a form that can be physically read by machines and used with other non-computerized equipment.
Text, graphics, sound, touch, or video are all acceptable. The primary output component of a computer is the monitor.
An output device enables the computer to convey data in a format that is understandable to humans, such as sound played through a speaker.
The order in which output devices, such as solenoid values and motor contactors, are turned on and off depends on the status of the physical inputs and outputs.
Thus, the correct option is A.
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Which of the following would be a likely project for an engineer with a PhD degree to engage in?
meeting safety and quality standards
teaching high school mathematics
designing and building a new circuit board
conducting research on alternative energy sources
C: designing and building a new circuit board
Electrical engineers would know how to design and build a new circuit board. An engineer with a PhD would be able to do this.
Jump starting a car requires _____.
A. jumper cables and a jack
B. a power source and a jack
C. jumper cables and a wrench
D. jumper cables and a power source
Answer:
D
Explanation: you need a jump cable to hook on a power source because the jump cable has two color cables to hook up to the power source. the two jump cables have two colors to tell you which one is positive and negative. The red one is the positive and the black on is the negative one.
Which of the following are benefits of the Python programming
language? Check all that apply.
It is free to use.
It saves programmers time.
It is known for its symbols.
It is relatively easy to learn.
Answer: A) it is free to use
B) It saves programmers time
D) It is relatively easy to learn.
Explanation:
Answer:
A, B, and D
Explanation:
Helpppp!!! Used to secure lights to lighting bars and can be used when working alone to
stabilize wood onto a solid surface *
A) bungee cord
B) duct tape
C) safety cable
D) C-Clamp
Which energy source would you rank as the best option for the rescue team? Why?
A. Nuclear power plant
B. Combustion engine
C. Hydroelectric power plant
D. Solar cell
E. Wind turbine
F. Human powered generator
G. Fuel-burning power plant
The energy source that would you rank as the best option for the rescue team is the combustion engine because the Combustion engines can be fueled by one of many transportable fuel supplies already in use by vehicles. Gasoline, diesel, propane, etc. The correct option is B.
What is energy?Energy is the entity that is used to run everybody and to operate every object. There are different types of energy. Energy is transferred from one type to type.
The different types of energies are nuclear energy, Solar energy, wind energy, mechanical energy, etc. The combustion engine has the energy of solar energy. One of the various transportable fuel sources now in use by cars can be used to fuel combustion engines.
Thus, the correct option is B. Combustion engine because it is scaled to need for power at the site, horsepower to kilowatt.
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The denominator of a fraction is 4 more than the numenator. If 4 is added to the numenator and 7 is added to the denominator, the value of the fraction 1 half find the original fraction.
Answer:
[tex]\frac{3}{7}[/tex]
Explanation:
Lets take the numerator of the fraction to be = x
So the denominator of the fraction is 4 more than the numerator = x+4
The fraction is ;[tex]\frac{x}{4+x}[/tex]
Now add 4 to the numerator and add 7 to the denominator as;
[tex]\frac{x+4}{4+x+7} =\frac{x+4}{x+11}[/tex]
This new fraction is equal to 1 half =1/2
write the equation as;
[tex]\frac{x+4}{x+11} =\frac{1}{2}[/tex]
perform cross-product
2(x+4 )=1( x+11 )
2x+8 = x + 11
2x-x = 11-8
x=3
The original fraction is;
[tex]\frac{x}{4+x} =\frac{3}{3+4} =\frac{3}{7}[/tex]
Which material is not a conductor of electrical current?
A.
aluminum wire
B.
steel wool
C.
plastic coil
D.
iron filings
Answer:
plastic
Explanation:
Which of the following describes the first and foremost guideline in dimensioning?
O legibility
accuracy
measurement
O sketching
Answer:
Accuracy
Explanation:
Just took the test
1. What should you use to clean hand and power tools?
Answer:
hot water ,gloves ,or compressed air can
Why is band tension put on a bandsaw blade?
Group of answer choices
To reduce the power needed to turn the band
To keep the band tight and tracking properly
To cut more rapidly
To keep the blade cool
What does basic levels of competence involves??
Annie has been designing a new pool filter for pools of over 5,000 gallons. The prototype she designed works well, but only on pools of less than 3,000 gallons. Which statement explains why Annie is not frustrated?
A. Engineers still need to design filters for smaller pools; this prototype can be distributed to other clients.
B. Engineers work in a cyclical process; she can just begin a totally new project.
C. Engineers can always take an existing idea and expand on it.
D. Engineers will not allow failures to stop them; a previous failure can be a practical solution for a new problem.
Answer:
C. Engineers can always take an existing idea and expand on it.
Explanation:
Engineers are problem solvers. When they identify a challenge, they design solutions and test the ideas using a prototype. When the prototype performs the desired output, they go ahead to implement a full design. This is to say, they take the existing idea that works in certain parameters and expand it to fit the intended solution.
Answer choices A,B, and D are true but not correct because the issue of frustration is not indicated. They are true because they explain the general form of working of engineers which is: continuing designing everyday to solve new problems, the work done by engineers has stages and processes and finally because engineers seek to give solutions, failure is not failing but a new problem that needs a new idea as a solution.
Answer:
c
Explanation:
What is matrix ? answer plzzz 27 point you got answer
Answer:
A matrix is a convenient and useful way of representing a graph to a computer. ... Matrices lend themselves easily to mechanical manipulations. Besides, many known results of matrix algebra can be readily applied to study the structural properties of graphs from an algebraic point of view.
Which option identifies the type of engineer most likely to be in charge in the following scenario?
A cell phone company wants to offer expanded coverage in the Andes Mountains in South America. The company hires a team of engineers to prepare a feasibility study.
civil
mechanical
agricultural
electrical
Answer:
civil engineering
Explanation:
they have survey and do construction
Answer:
its civil engineering
Which of the following is the term for the study of the theoretical nature of an event or idea?
abstract knowledge
critical thinking
perseverance
context
Answer:
Abstract knowledge
Answer:
Abstract knowledge
Explanation:
What is the least common denominator for the fractions 16and34?
Answer:
272
Explanation:
Which of the following might a biomedical engineer be involved in?
study of lions in the African grasslands
analysis of how organisms work
biological modeling of neural networks
study of environmental depletion
C: biological modeling of neural networks
Neuroengineering is a discipline that falls under the BME field.
A Lego structure of the Empire State Building built to scale is an example of which step of the engineering design process?
communicate the results
build a model
choose the best idea
test and redesign
lAnswer:
The Empire State building in New York City is one of the most recognizable buildings in the world. Jim works at a structural engineering firm and needs to make a scale model of the Empire State building. He knows that the Empire State building is 443.2 m tall. His boss wants the scale to measure 1.00 cm= 2.50 m. What should be the height of the scaled Empire State building?
Explanation:
should be 177.28cm tall
Answer:
build a model
Explanation:
you have to build a prototype before you build the real thing in this case the lego structure is the protype
Part A
Which of these planets is Earth? Explain your answer
how do i get a used eraser out of a mechanical pencil
Answer:
Use a screw or corkscrew. Screw it into the eraser, then pull.
Cut out the eraser with a craft knife if it is already way inside.
When your car is broken down on the side of the road, you should make your vehicle as _____ as possible.
A. visible
B. comfortable
C. cooled
D. loud
Answer:
Visible
Explanation:
If your car is not visible you will get hit
Which of the following describes what mechanical engineers do?
they design chips and circuit boards
they develop heating and cooling systems
they develop new medical devices
they design and construct large structures
B: they develop heating and cooling systems
A would be electrical engineer.
B would be mechanical engineer.
C would be biomedical engineer.
D would be structural engineer.