Answer:
B
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 of the following describes what happens in the first step of photosythesis?
A. Water atoms are split into catalyst, hydrogen atoms, and high-energy electrons.
B. Water atoms are split into catalyst, hydrogen atoms, and high-energy enzymes.
C. Water atoms are split into hydrogen molecules, oxygen molecules, and high -energy enzymes.
D. Water molecules are split into hydrogen atoms, oxygen molecules, and high-energy electrons.
Answer:
i think the answer is a i think so hope it help
Explanation:
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!
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 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:
A vernier caliper will measure in what ( URGENT)
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
# 17
It is best practice to never change the default password and
name of your router.
O False
O True
Read Question
Answer:
FALSE
Explanation:
It is best practice to ALWAYS change the password of your router to something other than the default.
_____
Leaving the password as the default leaves the router open to exploitation by hostiles.
Hand-held cutoff wheels can be powered by electricity or air.
True or false
Answer:
True!
Explanation:
Vs = 9 V, I = 13.6 mA. What is R?
Answer:
661.7 ohm
Explanation:
The base formula for the solution is
[tex]i = \frac{v}{r} [/tex]
so the I is equal to V divided by R and so we can change the formula according to the given stats so we change it to
[tex]r = \frac{v}{i} [/tex]
just put the stats in V and I and you will get the answer, don forget to change the milliampere to ampere!!
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:
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.
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:
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
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]
I need to drop 10 V to feed an LED from a 12 V power supply. The resistor value is 490 Ω. How much of my battery power will be wasted in the resistor?
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 does basic levels of competence involves??
Part A
Which of these planets is Earth? Explain your answer
1. What should you use to clean hand and power tools?
Answer:
hot water ,gloves ,or compressed air can
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.
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.
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:
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:
..............................
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 explains why electrical engineers take classes such as electronic techniques, microelectronic devices, networks, robotics, and integrated circuits?
to create safe stable structures
to design chips and circuit boards
to build effective communications systems
to test efficiency of energy usage
Answer:
I would honestly say D but I dont really know.
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
Fred wants to help his customer understand his vision for constructing the office interior. Which visual representation will best explain Fred’s ideas?
A.
structural
B.
perspective projection
C.
auxiliary view
D.
cutting-plane view
E.
elevation drawing
Answer:
D. cutting-plane view
Explanation:
When using the cutting plane view, cutting plane lines are utilized to show a plane or planes in which a sectional view is shown. Section views give a clear indication of interior views of an object or structure including hidden parts or features which are not directly visible through convectional ways such as direct observation.
Dimensions should be placed__
the drawing whenever possible__lines should not cross dimension lines
Answer:
dimensions should be placed OUTSIDE the drawing whenever possible THE lines should not cross dimension lines
Explanation:
What is the first component to install in steel stud framing system?
fast shipping ,high quality product, fastan the floor and ceiling tracks ,
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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