Define combustion and how it is used in technology.

Answers

Answer 1
Combustion is reactions of substance that react with oxygen from the air and transfers energy to surroundings. Ex: burning wood in a fire

Related Questions

Thoughts about drinking and driving

Answers

Answer: it’s very bad behavior and can be dangerous

Explanation:

Answer:

don't drink while you drive

Explanation:

don't drink while you drive because when your drinking while u drive you can crash and be in a big accident.

The skills and content of several subject areas were combined to form a new field known as a meta.........

Answers

Answer:

metacurriculum

Explanation:

Answer:

To form the metacurriculum

Match the task to the entity that performs it.

maintain intelligence satellites for U.S.
provide counterintelligence training
train enlisted personnel to become an officer
provide control system operation procedures

OCS NRO Navy Air Force

Answers

Answer:

NRO- Maintain intelligence satellites for U.S.

OCS- Train enlisted personnel to become an officer

Air force- provide counterintelligence training

Navy- provide control system operation procedures

whoever follows me & answers this first gets brainliest!!

Answers

Answer:

Hi

Explanation:

Answer:

ugh!

Explanation:

i got last TwT

what is the force needed to accelerate a 1.5ton car from 0 to 72 km/h in 5 seconds

Answers

Answer:.....

Explanation:

.....

Can someone please help me with this. Thank you. Ill mark you as brainly.

Answers

Answer:

5, 6, 4, 3, 2, 1

Explanation:

cos square there + cos square theta multiply cot square theta = cot square theta​

Answers

Explanation:

We need to prove that : [tex]\cos^2\theta+\cos^2\theta {\cdot} \cot^2\theta=\cot^2\theta[/tex]

Taking LHS : [tex]\cos^2\theta+\cos^2\theta {\cdot} \cot^2\theta[/tex]

Taking [tex]\cos^2\theta[/tex] common as follows :

[tex]\cos^2\theta(1+ \cot^2\theta)[/tex] ...(1)

We know that :

[tex]cosec^2\theta-\cot^2\theta=1\\\\cosec^2\theta=1+\cos^2\theta[/tex] ....(2)

Use equation (2) in equation (1) as follows :

[tex]\cos^2\theta{\cdot} cosec^2\theta[/tex]

We know that : [tex]cosec\theta=\dfrac{1}{\sin\theta}[/tex]

So,

[tex]\cos^2\theta{\cdot} \dfrac{1}{\sin^2\theta}\\\\=\cot^2\theta[/tex]

=RHS

Hence, LHS = RHS

Calculate the power dissipated when a current of 4 mA flows through a resistance of 5 kilo-ohms?

Answers

u can write it in 2 ways:
p= 0.08W
or
80 mW


hope this helps

Which feature would be used to measure OUTER diameter?

Answers

Answer:

Calipers

Explanation:

Calipers can also be used to measure holes of different shapes: square, rectangular, cylindrical or hexagonal. The lower set of jaws on the caliper is used to measure the outer diameter of a cylinder. It will also give you the total length or width of an object.

OK I KNOW THIS SOUNDS STUPID BUT JUST READ.
is it ok to use hot glue on wireless headphones as long as its on the outside not touching the wiring ?

Answers

Answer:

Of course. Just make sure you don't use a very hot glue gun. It can melt or warp the plastic.

Explanation:

Uhh yeah you should be able to, but I wouldn't recommend putting too much. If it is cracked then normal super glue is fine but if there is a piece missing or the earpiece has broken JUST BUY NEW ONES.

What is the purpose of a set of curly braces { } in pseudocode?

Answers

Answer:

Braces are used to signify a block of code. We look at the curly braces as a guide to where code starts and when it ends.

Explanation:

If carpet costs $3.25 a square foot, what would it
cost to replace a 200 square foot room?

Answers

Answer:

650$=200 X 3.25

Explanation:

Answer:

$650

Explanation:

$3.25 times 200 equals $650

how is a student load different from a scholarship

Answers

Answer: student loan you have to pay back. Scholarships are free money basically

Explanation:

Scientific research techniques are used to analyze the effectiveness of political advertising. False True

Answers

Answer:

correct me if i'm wrong but i think it's false

Explanation:

Which sentence best describes a refrigerator?
A.
It extracts heat from a high-temperature system and loses the heat to a low-temperature system.
B.
It extracts heat from a high-temperature system, loses some of the heat to a low-temperature system, and does work at its output.
C.
It extracts heat from a low-temperature system using work at its input, and rejects heat to a high-temperature system.
D.
It extracts heat from a low-temperature system and retains all the heat.

Answers

Answer: it's not b but i'm pretty sure it's c

Explanation:

just took the test

The statement 'it extracts heat from a low-temperature system using work at its input, and rejects heat to a high-temperature system' BEST describes a refrigerator (Option C).

A refrigerator is a commercial device that transfers heat to the environment so its internal compartment is cooled, thereby keeping foods and drinks cool.

This device (refrigerator) maintains things cool by pushing a refrigerant (i.e., a liquid) through a sealed thermally insulated system.

In consequence, a refrigerator can also be considered as a storage system that maintains foods to a suitable temperature.

In conclusion, the statement 'it extracts heat from a low-temperature system using work at its input, and rejects heat to a high-temperature system' BEST describes a refrigerator (Option C).

Learn more in:

https://brainly.com/question/2928084

Why is engineering ethics so important

Answers

Answer:

It Gives Them Ability To Push Back Against Bad Decisions

It should form part of the culture of engineering, and be celebrated as something to be proud of. A grounding in ethics empowers engineers to bring concerns forward, and ensure that the proper level of scrutiny is applied to unsafe or unethical practices.

List three types of documents that assist an engineer during reverse engineering and explain their functions.

Answers

Answer:

Materials document, Clients document, and the projects requirements documentation.

Explanation:

Answer:

The correct answer will identify and explain the function of three types of documents from among the following: A black box systems model identifies the inputs and the outputs that make a product function as a system. A functional structure diagram graphically represents the different functions a product performs with each of its inputs and outputs. A decision matrix is an organizational chart that allows an engineer to rank and compare different design options and requirements. A morphological matrix is a concept generation table.

Explanation:

IM A DIFFERENT BREEED!

Match the military operation to the category of satellite that would perform it.

location of enemy ground troops
routine reconnaissance of an unfamiliar climate
analyze waterways in an unfamiliar location
provide warning of an attack

Earth observing weather navigation communication

Answers

Answer:

1. Location of enemy ground troops  - EARTH OBSERVING.

Using earth observing satellite imagery, the military can observe vast expanses of land and in so doing, find the location of enemy ground troops.

2. Routine reconnaissance of an unfamiliar climate  - WEATHER

In other to find out more about the climate of an area, a weather satellite can be used to observe the areas and its changing weather patterns.

3. Analyze waterways in an unfamiliar location  - NAVIGATION

Using navigation satellites, navigation conduits such as roads and waterways can be observed.

4. Provide warning of an attack - COMMUNICATION.

Communications satellites enable people to communicate over great distances and so can be used by the military to warn of an impending attack.

If you are a subcontractor in the leather and apparel industry, you might make any of the following items EXCEPT which
of the following?
leather watchbands
rubber watchbands
gold watchbands
vinyl watchbands

Answers

Answer:

I believe the answer is C, gold watch bands

Explanation:

Henry is given a task to divide a segment into six equal parts, using a triangle and a compass. How many arcs would he need to complete this task?

A. three
B. four
C. five
D. six

Answers

Answer:

The correct option is;

D. Six

Explanation:

In order to divide a segment into six equal parts using a triangle and a compass, we have

1) With one (hypotenuse) side of the triangle placed on the segment to be divided, draw a slant line along at an angle to the segment to be divided into six equal parts

2) With the compass set to a fixed width, draw six arcs on the line drawn above from the start point of the given segment

3) With a side of the triangle drawl a line from last arc drawn on the slant line to the end of the segment to be divided into six equal parts

4) With the triangle, draw lines from the other arc marks on the slant line to the segment to be bisected parallel to the line drawn from the last arc to the end of the segment to be divided into six equal parts

5) The parallel lines joining the slant line to the segment will divide the given segment into six equal parts.

What is code tracing?

Answers

Answer:

code chasing is when the programmer interprets the results of each line of code and keeps track by hand of the effect of each statement

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