Students are attempting to make a doorbell ring using some wire and a battery. An electrical cicuit is needed to make the bell ring.
What is the working of door bell ?When you press a doorbell button, you whole an electrical circuit that lets in family strength to go with the drift via the doorbell's inner electromagnet. The magnetic discipline generated through the electromagnet is then used to electricity a mechanism that creates the doorbell sound.
A bell works with the precept of running of electromagnetism. When the transfer is driven on, the circuit receives finished and the cutting-edge begins offevolved flowing via the U-formed electromagnet which creates a magnetic discipline withinside the core. This draws the iron armature.
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Paint spills onto a floor in a circular pattern. the radius of the spill increases at a constant rate of 2.5 inches per minute. how fast is the area of the spill increasing when the radius of the spill is 18 inches?
a) 5pi in^2/min
b) 36pi in^2/min
c) 45pi in^2/min
d) 90pi in ^2/min
How fast is the area of the spill increasing when the radius of the spill is 18 inches is d) 90pi in ^2/min.
Area of the spillArea of the spill=S=πr²
dS/dr=(πr²)=2πr
Radius change with speed=dr/dt =2.5(m/s)
Area of the spill will increase with speed
dS/dt = dS/dr × dr/dt =2πr ×dr/dt
=2π×18×2.5
=282.74m²/s or 90pi in²/min
Therefore the correct option is D.
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3 3/5 x (-8 1/3) in faractions
it took me less than 15 sec to solve this ._.
Look at the Energy Graph on the left side of the simulation. When stretched and held, does the spring have kinetic energy or potential energy?
A stretched spring will always have an elastic potential energy, that is given by the following formula: PE = 0.5kx^2
What is elastic potential energy?Elastic potential energy is the energy stored by an elastic object when there is application of force over it, in order to deform the elasticity.
Therefore, there is potential energy in the given graph.
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(50 POINTS!!)
Javier wants to improve his body composition. Improving cardiorespiratory endurance, muscular strength and muscular endurance will assist in his body composition goal. Describe how those components of fitness could improve Javier's body composition goal.
Those components of fitness could improve Javier's body composition goal by the Regular exercising and bodily pastime promotes sturdy muscle tissues and bones.
What are the 5 additives?The 5 health-associated additives of bodily health are cardiorespiratory endurance, muscular strength, muscular endurance, flexibility, frame composition and nutrition. Probably the maximum critical health element is cardiorespiratory endurance (CRE).
It improves respiratory, cardiovascular health, and standard health.You can enhance your cardiovascular health via way of means of doing everyday exercising. Running, walking, cycling, swimming, dancing, and boxing are only some of the various exercises you can strive out. The secret is to be consistent. Carry on analyzing to peer how lots exercising you must be aiming to do.
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Every so often grandpa would take the Vietnam war apart to try to make sense of the experience true or false?
what role does the hippocampus play?
please help help help
this is child development class
I will give brainlist and I will follow you
How did the advent of the microscope most likely affect the foul-air theory?
O It supported the theory of foul air causing illness and helped the theory become a law.
It provided evidence for other causes of illness, but scientists did not change the theory.
O It allowed scientists to change the theory before any new information was collected.
O It allowed scientists to see small organisms in sick individuals and change the theory.
It allowed scientists to change the theory before any new information was collected, is the advent of the microscope most likely affect the foul-air theory.
What does the microscope affect in the foul-air theory?Many biological processes and mechanisms that occur around us can only be understood if they are observed on a smaller scale.
Scientists can now view a variety of things, such as viral activity, cell movement, pores, and so on, thanks to the invention of the microscope.
Thus, option C is correct.
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Yes yes and yes
Which one is yes
Pick a random one
Answer:
yes
Explanation:
yes
Which of these is an unelected administrative position within city government?
utility commissioner
city manager
city commissioner
mayor
city council member
The option that is an unelected administrative position within city government is city manager.
Who is the administrative head of any city?This is known to be the city manager as they are said to be official appointed and they can be also called chief executive officer (CEO), etc.
Note that they are appointed and not elected and as such, The option that is an unelected administrative position within city government is city manager.
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When it comes to aggressive driving, you must acknowledge, witness, and modify your:
Answer:
behavior
Explanation:
drawing of a deep litter poultry
Answer:
[tex]\huge\bold\color{pink}{Answer :}[/tex]
[tex]\huge\red{\overline{\qquad\qquad\qquad\qquad}}[/tex]
[tex]\blue{\rule{10pt}{999999pt}} \purple{\rule{10pt}{999999pt}} \
[/tex]
A star that is several thousand times brighter and cooler than the sun would be classified as
A star that is several thousand times brighter and cooler than the sun would be classified as VY Canis Majori.
What are the Red stars?Its radius is concept to be round 1400 instances than of our solar, and its luminosity 270,000 extra than our solar.Red stars are the coolest. Yellow stars are warmer than red stars. White stars are warmer than pink and yellow.
The Sun floor is most effective 5800 Kelvin degrees, this means that that there are warmer begins off evolved than the Sun. Answer 3: The solar is an "averagely hot" big name withinside the universe.
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Rate mah animals!!!!
uwu
the first one is named lucky, the second is snowy, the third one is mia, the forth one is benjamin, and the last one is my syrian hamster pikachu uwu
Answer:
10/10
Explanation:
Recommending additional items that complement a customer's purchase, such as shoe cleaner to go with new leather shoes is called:
A. Under selling
B. Up selling
C. Cross selling
D. Mixed selleling
Recommending additional items that complement a customer's purchase, such as shoe cleaner to go with new leather shoes is called: C. cross selling.
What is cross selling?Cross selling can be defined as a sales and marketing technique that involves a buyer recommending complementary products to existing customers, so as to boost the level of sales.
In this context, we can infer and logically conclude that an example of cross selling is recommending additional items that complement a customer's purchase, such as shoe cleaner to go with new leather shoes he or she purchased.
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6. A staff reading taken on a point whose elevation is to be determined as on a change point is called a) invert reading b) fore sight reading c) intermediate reading d) back sight reading
A staff reading taken on a point whose elevation is to be determined as on a change point is called fore sight-reading. Then the correct option is B.
What is fore sight-reading?Foresight is an observation made on an unknown coordinate point (s). Foresight is a reading that looks "ahead" anywhere along the line of movement because a survey advances from a precise location to unknown positions.
A staff reading taken on a point whose elevation is to be determined as on a change point is called fore sight-reading.
Thus, the correct option is B.
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What did many people feel should change in Europe after World War II?
People felt that Europe was divided between the soviet and Us Blocks after World War II.
What was World War II?World War II can be regarded as the global war of 1930s which was a conflict that hit almost entire globe.
Therefore, after the world war, Europe experience trouble in economy and there was division among people.
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what makes a forest sustainable
What is Respect?Describe the VALUE of Respect?
Answer:
Respect, also called esteem, is a positive feeling or action shown towards someone or something considered important or held in high esteem or regard. It conveys a sense of admiration for good or valuable qualities.
Respect means that you accept somebody for who they are, even when they're different from you or you don't agree with them. Respect in your relationships builds feelings of trust, safety, and wellbeing. Respect doesn't have to come naturally – it is something you learn.
Helppp! does anyone know where i can get the answers to :
end of semester test: advanced english literature and composition b
please i need it asap! it has 72 questions ):
n ocean food web is shown.
Which organism has the most available energy?
sea urchin
sea otter
kelp
elephant seal
Answer:
kelp
Explanation:
in the energy pyramid the energy decreases by 90% as it goes up there for the producers or kelp has the most energy avalible
Question 29 of 40
outskirt is related to town in the same way as:
o trunki
tree
tony
margiy page
pilot: airplane
cover : computer
Outskirt is related to town in the same way as: Margin is related to page.
How to identify opposites of words?Outskirts are usually located at the outer side or boundaries of towns or regions.
Now, since outskirt is literally the boundary of a place like city or town or region, we can easily say that the correct answer is margin and page. This is because margin is the boundary of a page.
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What was the average speed of the first flight of a powered airplane?
Answer:
I think the average speed is 6.8 miles per hour
Explanation:
hope this helps if not let me know have a blessed day
Answer:
Explanation:
Comment
The first flight was given as 120 feet in 12 seconds. Doing the math
[tex]\dfrac{\dfrac{120}{5280} }{\dfrac{12}{3600} }[/tex]
gives 6.82 miles / hour
But the history of what made this flight possible was an engineering act of very careful experimentation and a great deal of thought on how to use mathematics to solve flight problems. It's worth looking up.
Five activities that the local government did to ensure that the community members abide by the lockdown regulations
...........................
It can be inferred that the activities that local government did to ensure that the community members abide by the lockdown regulations are:
Effective Mass CommunicationUse of local law enforcement agentsEffective enforcement of related rulesMonitoring of the EnvironmentProvision of Public Amenities required to ease the stay at home.What is a lockdown?Whenever there is a widespread danger that has the capacity to be hazardous to the general public at a fast rate, the government proceeds to ensure that everyone says in doors. This is called a lockdown.
In order for a lockdown to be ineffective, the government has to carry out the activities listed above.
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What will happen to an economy that produces and imports a good if an import tariff is removed?
Answer: Import tariff is kind of like tax, so they will lose a source of money.
Explanation:
Sorry, I'm not really sure about this. You could maybe just look it up online.
10. The probability of a new york teenager owning a skateboard is 0. 37; of owning a bicycle is 0. 36 and of owning both is 0. 27. A) are the events mutually exclusive or not mutually exclusive?
The probability of the teenager owning a skateboard or a bicycle will be 0.46 or 46%. And the events are mutually exclusive.
What is the addition rule of size for two subsets?For two subsets A and B of the universal set U, we have:
P(A ∪ B) = P(A) + P(B) - P(A ∩ B)
The probability of a new york teenager owning a skateboard is 0.37, of owning a bicycle is 0.36, and of owning both is 0.27.
Then the probability of the teenager owning a skateboard or a bicycle will be
P(A ∪ B) = 0.37 + 0.36 - 0.27
P(A ∪ B) = 0.73 - 0.27
P(A ∪ B) = 0.46
Thus, the probability of the teenager owning a skateboard or a bicycle will be 0.46 or 46%.
The events are mutually exclusive.
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. When was the Arctic National Wildlife Refuge (ANWR) designated for protection?
. Where is the Arctic National Wildlife Refuge and how large is it?
. Explain the position of Senator Malcolm Wallop.
When was the Arctic National Wildlife Refuge (ANWR) designated for protection as During his Senate tenure, Wallop supported sturdy countrywide security, tax reform (such as discounts in property and present taxes), and different factors of Reagan conservatism.
What is Arctic National Wildlife Refuge and how large is it?On December 6, 1960, President Dwight Eisenhower made their imaginative and prescient a truth by setting up the 8.9-million-acre Arctic National Wildlife Range, especially for its “precise wildlife, wilderness, and leisure values.” In 1980, President Jimmy Carter persevered this legacy by increasing the area.
While withinside the Senate, Wallop served at the Senate Judiciary Committee, Energy and Natural Resources Committee, and Select Committee on Intelligence.The Arctic National Wildlife Refuge (ANWR) is certainly considered one of Alaska's crown jewels withinside the Arctic location and encompasses 19.6 million acres in faraway northeastern Alaska. The safe haven straddles the Japanese Brooks Range from the treeless Arctic Coast to the taiga of the Porcupine River Valley.Read more about the Arctic National Wildlife Refuge :
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The diagram below shows four planets and their distances from the sun.
Light from the sun reaches Earth in 8.3 minutes. In how many minutes does light from the sun reach Venus?
Group of answer choices
3.24 minutes
4.25 minutes
5.98 minutes
7.58 minutes
Answer:
5.98minutes
Explanation:
since speed of light is constant;
distance/time for the earth= distance/time for Venus
1/8.3=0.72/x
x=8.3*0.72
x(time to reach Venus) = 5.976= 5.98minutes
Do I have to be at least 18 to get my ged?
Answer:
you have to be a drop out to get your ged, so not necessarily 18 just out of school!
Write 4 4/5 as an improper fraction
Answer: Heyaa! ^
Your Answer is... 24/5
Explanation:
To convert mixed number 4 4/5 to improper fraction, you follow these steps:
Multiply the whole number by the denominator
4 × 5 = 20
Add the product from Step 1 to the numerator
20 + 4 = 24
Write answer from Step 2 over the denominator
24/5
The mixed number 4 4/5 converted to improper fraction is therefore :
24/5.
Hopefully this helps you!
24/5 is a improper fraction of 4 4/5.
What is improper fraction?An improper fraction is a fraction in which the numerator (top number) is greater than or equal to the denominator (bottom number). Fractions such as 65 or 114 are “improper”.
Proper fractions are those that are higher than 0 but less than 1. The numerator is less than the denominator in appropriate fractions. An improper fraction is one that has a numerator that is higher than or equal to the denominator.
A wrong fraction is always bigger than or equal to one. A mixed number, which combines a whole number and a correct fraction, is the last type of number.
Therefore, 24/5 is a improper fraction of 4 4/5.
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Which of the following conclusions is not supported by this diagram?
Answer:
The population growth rate has been steadily increasing for the past 25 years.
Explanation:
From this diagram, we can clearly see that there is a decrease in the number of people being born each year starting about 30 years ago. Therefore, the population is decreasing rather than increasing according to this population pyramid.