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??
Wind resistance _____ as speed increases.
A. increases slowly
B. increases dramatically
C. decreases slowly
D. decreases dramatically
Answer:
B
Explanation:
Which of the following describes what industrial engineers do?
they design chips and circuit boards
they design and construct large structures
they develop new medical devices
they create and interpret design specs
Answer:
B
Explanation:
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 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.
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 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.
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
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 is illegal in Florida?
A. changing your tire on the side of the road
B. turning on your hazard lights before you pull over
C. jump-starting your car on the side of the road
D. placing reflective triangles around your car on the side of the road
Answer:
Your answer is- B. Turning on your hazard lights before you pull over.
Explanation:
Hope this helps u
Crown me as brainliest:)
Which of these devices controls the flow of coolant through a cooling system based on temperature?
Answer:
Thermostat
Explanation:
At optimum temperature, the thermostat controls the flow of engine coolant to the radiator so that the engine continues to operate at optimum temperature. (Wikipedia)
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:
6:54pm EDT is
Aviation time in Zulu
Can someone draw me this plz I’ll give brainlist and points I suck at drawing so._.ill give brainlist and 40 points Plz send a picture of it so I can use it for the assignment
Answer:
on computer or paper?
Explanation:
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:
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.
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:
..............................
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:
what are example for mantle
The definition of a mantle is a shawl or a cloak. An example of a mantle is a fancy shawl worn over a cocktail dress.
Which option should the engineers focus on as they develop the train in the following scenario?
Richmond, Virginia, has recently approved the construction of a metro system throughout part of the city. As engineers study other
metro lines, they notice that there is an extreme amount of energy lost as the trains start and stop.
Engineers can design a train with additional valves to increase energy.
O Engineers can design a train with additional fluid pumps to increase efficiency
Engineers can design a train with a regenerative braking system.
Engineers can design a train involving larger hydraulic power systems.
lol
Answer:
Engineers can design a train with a regenerative braking system
Explanation:
Assuming the point of the question is that the engineers want to focus on using energy efficiently when starting and stopping, they would likely want to consider a regenerative braking system. Such a system can store energy during braking so that it can be used during starting, reducing the amount of energy that must be supplied by an outside power source.
Answer:
Engineers can design a train with a regenerative braking system
Explanation:
ur mom last night
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.
For more details regarding output device, visit:
https://brainly.com/question/13014449
#SPJ2
what is the main job of a cylinder head
Answer: The function of cylinder head is to seal cylinder, form combustion space with piston, and bear the action of high temperature and high pressure gas. The cylinder head bears the mechanical load caused by the gas force and fastening the cylinder bolt, and also bears the high heat load because of the contact with the high temperature gas.
The main function of a cylinder head is to control airflow in and out of the cylinders, as well as fuel deployment.
The cylinder head is the part of an internal combustion engine that sits above the cylinders on the top of a cylinder block.The combustion gas, coolant and lubricating oil can flow freely in the cylinder head.The cylinder head is composed of the valvetrain housing, the head cover, and the combustion chamber.In conclusion, the main function of a cylinder head is to control airflow in and out of the cylinders, as well as fuel deployment.
Learn more in:
https://brainly.com/question/7441176
Liz is creating a moving fluid system. Which of the following describes what she will need to install to create motion?
Answer:
Actuator
Explanation: Just did an assignment And got correct!
Answer:
acutator
Explanation:
A guitarist would use a tuner to change which element of music?
A guitarist would use a tuner to change "pitch" of music.
An instrument having a lengthy fretting neck that is flat-bodying and generally plays strings (6) with a selection as well as fingertip, is considered as a Guitar.
An electrical gadget that receives or carries the data (signal) as well as enables consumers to observe or monitor TV, would be considered a Pitch. A sound's pitch affects the amount whereas sound intensity depending on the acoustic wave's magnitude.Bass tuners were indeed particularly designed for electric guitars as well as other string instruments, however, guitar tuners routinely operate for guitars along with the basses music.Thus the above is the right answer.
Learn more about the guitar here:
https://brainly.com/question/10328233
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!
how has technology changed since the introduction of semiconductors.
Answer:
It has raised and evolved by being able to create different valuabes
and functionsExplanation:
Part A
Which of these planets is Earth? Explain your answer
what's the third pedal for in a vehicle
Manual Transmission Cars typically have 3 pedals which are
1) Brake Pedal
2) Gas / Acceleration Pedal
3) Clutch Pedal
Answer:
thanks bud for the points
Can someone draw me this on isometric paper or computer plz I’ll give brainlist and points I’ll work to get you allot of points plz
Answer:
wish I could do that instead of my math homework :(
Explanation:
Answer:
This is easy
Explanation:
I will draw it.
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.
