If there is two batteries connected in series, each battery is 6V. What is the EMF of the battery?
Answers
Answer:
The EMF of each battery is 6 volts and the EMF of two batteries connected in series is 12 volts.
Explanation:
According to the Kirchhoff's Voltage Law, net voltage of a closed circuit must be zero. That is:
\(\Sigma \limits_{i=1}^{n} V_{i} = 0\) (1)
Where \(V_{i}\) is the voltage of the i-th component of the closed circuit, measured in volts. Please notice that voltage for a power generating element (i.e. EMF) is less than zero and for a power consuming element is greater than zero (i.e. Batteries being charged by the EMF). In addition, if n-elements are connected in series, then the equivalent voltage is:
\(V_{eq} = \Sigma\limits_{i = 1}^{n} V_{i}\) (2)
Let consider that closed system is formed by two batteries connected in series and an EMF, by (1) and (2) we have that:
\(V_{EMF} - V_{eq,batt} = 0\)
\(V_{EMF} = V_{1}+V_{2}\) (3)
If we know that \(V_{1} = V_{2} = 6\,V\), then the EMF of the battery is:
\(V_{EMF} = 12\,V\)
The EMF of each battery is 6 volts and the EMF of two batteries connected in series is 12 volts.
Related Questions
What is the relationship between humans and their environment? 100 POINTS
Answers
There is an interaction between human beings and their surroundings that is known as the human environment. Thus, it can be defined as a means of understanding the way people relate to their natural and physical surroundings. A place's environment is affected by a number of factors, such as its physical, biological, cultural, social, and economic characteristics which are all influenced by a number of factors.
Hope this helps :)
An environment's physical, biological, cultural, social, and economic characteristics are all affected by a variety of factors.
at which position of earth northern hemisphere has coldest day
Answers
Answer:
In the northern hemisphere, there are two places in the Sakha, Russia that vie for the honour of being considered the "Pole of Cold" in winter. These are Verkhoyansk (located at 67°33′N 133°23′E) and Oymyakon (located at 63°15′N 143°9′E)
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pls help me I don’t want to fail I’ll give brainliest to the most good answer
Answers
hy does canada experience much larger differences in temperature from january to july than does brazil?
Answers
The reason why Canada experiences much larger differences in temperature from January to July than Brazil is because of their location on the globe and the varying weather patterns.
The differences in temperature of Canada and Brazil from January to July are caused by the difference in location and their unique weather patterns. Canada is located at a higher latitude than Brazil, and this has a significant impact on its temperature range. Brazil, on the other hand, is located near the equator and experiences less variation in temperature throughout the year.
Canada is known for its cold, harsh winters, which cause the country's average temperature to drop dramatically during the winter months. During the winter months in Canada, temperatures can range from 5°C to -20°C depending on the location. Canada, however, has mild summers, with temperatures averaging 20°C in most areas.
Brazil, on the other hand, has a tropical climate, which means the country experiences warm weather year-round. During the winter months, Brazil's average temperature ranges from 20°C to 28°C, while during the summer months, it ranges from 28°C to 35°C. The temperature difference between January and July in Brazil is less than 10 degrees Celsius, which is much lower than the temperature difference in Canada during the same period.
In conclusion, the primary reason why Canada experiences much larger differences in temperature from January to July than Brazil is due to its location on the globe and its varying weather patterns.
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Research
If you were going to build a brand new city today, where would you want to put it? Why? Remember, you want to have a city with a functioning economy, reasonable weather, and relatively easy access to building materials (are they nearby? If not, can they be transported?). You may choose any area of the world, but try not to choose an area that already has a large city. Write an essay of 700 words or more describing your city. Cite your sources at the end of the project by listing the URL for each source.
Make sure you answer the following questions in your essay:
Where is it located?
Where does most of the food and other goods come from? (Give specific shipping routes or modes of transportation.)
What do most people do for a living in this city?
What major industries exist here?
Will your city be famous for anything? (For example, New York is famous for its pizza, while Amsterdam was once famous for its tulips.) You will need to explain why your city has this famous item and why it is different from other places.
What resources will be plentiful in this city?
What resources will need to be shipped from very far away?
What type of housing will there be?
How will people get around? (by car, boat, walking, bicycle?)
Do you see any potential problems with your city? (for example, bad weather, resource shortages, transportation problems, etc.)
Will there be a large suburban area around your city, or will most people live near the city center?
Remember, you can make up anything you want about your city, but you will need to be able to explain how your city fits into its geographic area. For example, you can't say that a new city in Florida will be a great center for trading diamonds unless you explain how the diamonds get there, and why people choose to trade in diamonds in this city over another one that is closer to the diamond mines.
These sites will help with your city planning:
City Compare
Comparing Cities Around the World
City Profile
Answers
Your city must be built in a region that promotes the social, economic, and structural well-being of its inhabitants.
Suggestions for your cityYour city can be built on the Northeast coast of Brazil.This region was chosen because of its resources for the exploitation of seafood.The northeast coast of Brazil has a large number of bodies of water, which can be used to promote tourism and explore fish, shellfish, crustaceans, and other seafood that will be used for local food and export.Exporting seafood can strengthen the region's economy and make the city known worldwide.The region has a tropical climate, which encourages the exploitation of various agricultural products, which can serve the local trade, benefiting the economy and ensuring the food of the inhabitants.The residences will be built with bricks, as wood is not recommended for regions with such a hot climate.Bricks can be produced in the city, as the region has large environments that have the raw material for the construction of bricks, such as clay.The locomotion of the inhabitants will be done mainly with cars and boats, due to the bodies of water.To present your city in your essay, start by showing the region where it will be located. Emphasize the benefits of this region and how it will be important to the city's success. Introduce the city's climate and geography and how it meets the objectives. Show how the trade will be and how the region has a strong potential to be economically stable.
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According to lecture, contemporary Kashaya scholars identified an area at Fort Ross/Metini consistently swept clean of artifacts as likely evidence of: a) Evidence of cultural disappearance b) A dance house c) A burial place d) A wheat field
Answers
As dance house are normally wiped clean after each usage, modern Kashaya researchers identified an area at Fort Ross/Metini, hence option B is correct.
This is done to get rid of any leftover food or drink from the prior performance. The Kashaya people consider it insulting to the dancers' souls to leave these remnants behind.
The other possibilities are less plausible. Cultural disappearance would probably leave behind traces in a number of locations, not just one. A place of burial would probably have artifacts, such grave goods, that wouldn't be swept away.
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is an example of a psychical process that a psysical geographer
Answers
Answer:
there is no context
Explanation:
ocean currents move cold water from the tropics to the poles where the water warms agree or disagree.
Answers
Answer:
Agree.
Explanation:
Agree.
Ocean currents move cold water from the tropics to the poles where the water warms due to the Coriolis effect. The Coriolis effect is caused by the rotation of the Earth, which causes the air and water to move in different directions in the northern and southern hemispheres.
This causes the warm water from the tropics to move towards the poles, while the cold water from the poles moves towards the equator. As the warm water moves towards the poles, it is cooled by the colder temperatures of the polar regions, resulting in the cold water from the tropics being moved to the poles. This process helps to regulate the global climate, as it helps to balance the temperatures between the poles and the tropics.
a narrow strip of land that connects two larger landmasses
Answers
A narrow strip of land that connects two larger land masses and separates two water bodies is called an Isthmus.
Since Isthmus lies at the connecting point of two large landmasses, its strategic location makes it ideal for setting up ports, canals, military camps, stations, etc. A natural outcome of such structures would be enhanced communication, exchange of knowledge, culture, and robust trade through this connection.
Some examples include the Isthmus of Panama which links continents of North and South America and separates the Pacific Ocean from the Atlantic Ocean. The Isthmus of Suez links the continents of Asia and Africa and separates the Red Sea from the Mediterranean Sea.
Both the above-mentioned Isthmus are expeditors of large-scale trade across the world. About 14,000 ships cross the Panama Canal between the Atlantic and Pacific Oceans every year.
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useful simplifications of a more complex reality do not include:
Answers
Simplifications of a more complex reality should be based on accurate and reliable information, and should not include assumptions or biases that could lead to inaccurate or incomplete conclusions.
Simplifications should also be transparent and clearly explained, so that others can understand how they were derived and what they represent. In general, useful simplifications are those that accurately represent the key features and relationships of a complex system, while leaving out unnecessary details or complications. These simplifications can be helpful for understanding complex systems and making predictions or decisions, but they should be used with caution and should not be relied upon exclusively.
It is important to keep in mind that simplifications are not always possible or desirable, especially in fields such as physics or mathematics, where the underlying laws and principles are often highly complex and difficult to understand. In these fields, it may be necessary to use more advanced techniques and tools to fully understand and represent the underlying reality.
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a. b. 2. Which countries have the following co-ordinates? b. 10°S 50°W a. 40°N 0° C. 20°S 50°E 3. Which of these countries are in the news at present? Explain why. 4. The country where the 10°N and the 50°E lines of longitude meet is often in the news. Name this country. Give one reason why this countr is in the news. 5. Find a news story about a country in Africa. a. Give the latitude and longitude of this country. b. Place your story on the news board. C. d e
#geo
Answers
b. The coordinates 10°S 50°W correspond to a location in the South Atlantic Ocean, southwest of the coast of Africa. It does not correspond to a specific country. a. The coordinates 40°N 0°W correspond to a location in the Atlantic Ocean, west of the coast of Africa. It does not correspond to a specific country.
c. The coordinates 20°S 50°E correspond to a location in Mozambique, a country in southeastern Africa. Mozambique is currently in the news due to various reasons. One significant event is the ongoing conflict in the northern region of Cabo Delgado, where an Islamist insurgency has caused significant violence and displacement of people. Additionally, Mozambique has been dealing with the aftermath of Cyclone Idai, which struck the country in 2019, causing widespread destruction and loss of life. The country is also making efforts to attract investment and develop its natural resources, particularly in the areas of oil and gas exploration.
4. The country where the 10°N and 50°E lines of longitude meet is Sudan. Sudan is often in the news due to various reasons. One significant factor is its political situation and transitions. In recent years, Sudan has undergone significant political changes, including the ousting of long-time President Omar al-Bashir in 2019 following months of protests. The country is now undergoing a transition period with a civilian-military power-sharing arrangement. Sudan is also dealing with challenges such as economic instability, conflicts in regions like Darfur, and issues related to human rights and governance.
5. To provide a news story about a specific country in Africa, I would need access to real-time news sources, which are not available in my training data. However, you can easily find news stories about African countries by referring to reputable news outlets or conducting an online search. Once you have identified a specific news story and the country it pertains to, you can provide the latitude and longitude of that country, and if applicable, share a summary or headline of the news story on the news board.
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Will mark brainliest! Pls Help!
Which statements correctly describe the Mississippi River? Check all that apply.
A. It is the second largest river in the world.
B. It empties into the Gulf Of Mexico.
C. It is the fastest flowing river in the U.S.
D. It is the longest river in the U.S.
E. It is the widest river in the U.S.
Answers
Answer:
b, c,
Explanation:
Missouri is longest
Amazon is widest
Amazon is second largest
Answer:
the answers are A and B
Explanation:
which process in the hydrologic cycle occurs first when starting with ocean water and ending with rain? question 1 options: condensation infiltration evaporation precipitation
Answers
Evaporation process in the hydrologic cycle occurs first when starting with ocean water and ending with rain. When humid air is elevated, it cools, causing water vapor to condense into clouds.
The evaporation of water from the ocean's surface kicks off the hydrologic cycle. Clouds are created when moist air is raised, cools, and water vapor condenses. Around the world, moisture is moved until it eventually returns to the ground as precipitation. One of two things may happen once the water touches the ground: either some of it evaporates back into the atmosphere, or it seeps beneath the surface and becomes groundwater. Either through transpiration or by seepage, groundwater finds its way into the seas, rivers, and streams. Runoff, which drains into lakes, rivers, and streams and flows back to the oceans, makes up the remaining water on the earth's surface. The moisture level in the cold, drier air flowing directly above the lake surface rises as a result of the warm surface water's evaporation. Water vapor in the colder air evaporates further, condensing to create ice-crystal clouds that are carried toward the beach.
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why do terrestrial planets lack hydrogen and helium in their atmosperes A. hydrogen and helium cant be retained because the planet masses are to small B. hydrogen and helium were blown by solar wind C. hydrogen and helium were converted to oyher compounds as the planets formed D. hydrogen and helium are present in rings around the terrestrial planets
Answers
Hydrogen and helium can't be retained because the planet's masses are too small. Here option A is the correct answer.
Terrestrial planets are rocky, Earth-like planets. They are characterized by their solid, rocky surfaces and relatively small sizes. The four terrestrial planets in our solar system are Mercury, Venus, Earth, and Mars.
One key characteristic that distinguishes these planets from gas giants is that they have little to no hydrogen or helium in their atmospheres. Terrestrial planets don't have hydrogen and helium in their atmospheres since these gases are light and are blown away by solar winds.
Since the gravity of terrestrial planets is weak compared to gas giants like Jupiter and Saturn, they are not capable of holding onto hydrogen and helium. As a result, most of the atmosphere on these planets is made up of heavier elements like oxygen, nitrogen, and carbon dioxide. Therefore, option A is the correct answer.
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What are the 4 elements of environmental determinism
Answers
Answer:
climates and landforms are two
Explanation:
The margins of glaciers are usually darker than the interior primarily because:
Answers
Answer:
The margins of glaciers are usually darker than the interior primarily because: Growth and associated glacial erosion. When glacial accumulation is greater than glacial ablation, the result is glacial. retreat and associated glacial deposition.
Explanation:
how do people get through school with out breaking down?
Answers
Answer:
1: Is this even a geography question?
2: This question has so many answers that no one in the word has time to answer. (If I am to make a rough estimate about how long it would take to provide every answer, I would say about a week without stopping for anything)
Explanation:
ACTIVITY 6: African Immigration
Thousands of Africans immigrate to other countries each year. Write the correct answers using resources other than this Unit.
1) Approximately, how many African immigrants live in the United States today?
2) In what part of Africa are a majority of the African immigrants to the United States from?
3) Approximately, how many African immigrants live in European countries?
4) How many of the African immigrants to Europe are from sub-Saharan Africa ad opposed to North Africa?
Answers
The exact figures may vary, but there are approximately 2.8 million African immigrants in the United States, with a majority coming from various regions in sub-Saharan Africa, and there are millions of African immigrants living in European countries, with a higher proportion from sub-Saharan Africa compared to North Africa.
1) According to the Migration Policy Institute, as of 2019, there were approximately 2.8 million African immigrants living in the United States.
2) The majority of African immigrants to the United States come from various regions in Africa. However, significant numbers are reported to originate from countries such as Nigeria, Ethiopia, Ghana, Kenya, and South Africa, among others.
3) The number of African immigrants in European countries can vary across different countries. According to available estimates, there are millions of African immigrants residing in European nations, but specific figures may differ by country.
4) The majority of African immigrants to Europe are from sub-Saharan Africa rather than North Africa. This is due to factors such as political instability, conflict, economic opportunities, and migration patterns. However, the exact breakdown between sub-Saharan Africa and North Africa would require more detailed and specific data from individual European countries.
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After the Sinhalese people arrived in Sri Lanka, the Tamil people invaded Sri Lanka
from
Tibet.
Bhutan.
Nepal.
southern India.
Answers
Answer:
Southern India
Explanation:
Following the arrival of the Sinhalese, the Tamils invaded Sri Lanka from southern India. Option D is correct.
Who are Sinhalese people?The Sinhalese are an Indo-Aryan ethnic group native to Sri Lanka's island. They were once known as the Hela people.
They make up around 75 percent of Sri Lanka's population, with about 16.2 million people.
Language, cultural background, and nationality all contribute to Sinhalese identity.
When these peoples came to Sri Lanka, Tamil people invaded Sri Lanka from Southern India, and were defeated by the Sinhalese people.
Therefore, option D is correct.
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Which kind of object do you think is most common in our galaxy: white dwarfs, neutron stars, or black holes? Explain your reasoning.
Answers
The most common kind of object in our galaxy is likely a white dwarf. White dwarfs are the remnants of low to medium-mass stars after they have exhausted their nuclear fuel and undergone stellar evolution. They are relatively common objects in our galaxy because they represent the final evolutionary stage for the majority of stars.
Neutron stars, on the other hand, are much rarer. They are formed from the core collapse of massive stars during a supernova explosion and require specific conditions to occur. Black holes are even less common, as they form from the gravitational collapse of extremely massive stars and require even more specific conditions.
Given that low to medium-mass stars are more abundant in our galaxy compared to massive stars, it is reasonable to infer that white dwarfs, which are the end product of these stars, would be the most common kind of object. Additionally, white dwarfs have longer lifetimes compared to neutron stars and black holes, which further contributes to their higher prevalence.
While white dwarfs are the most common, it is important to note that neutron stars and black holes, despite being less numerous, are still fascinating and significant objects in our galaxy, with unique properties and effects on their surrounding environments.
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Which U.S.-originated sport is popular in Canada?
a.baseball
b.soccer
c.wrestling
d.rugby
Answers
Answer:
Baseball
Explanation:
the plastic layer in the mantle from about 70 to 250 km (43 to 155 mi) in depth is known as the
Answers
The plastic layer in the mantle, which is located at a depth of about 70 to 250 km (43 to 155 mi), is known as the asthenosphere. This layer is characterized by its low viscosity, which means that it can flow and deform over long periods of time under the influence of stress.
The asthenosphere is also responsible for the movement of tectonic plates, which float on top of it. As the plates move, they can create geological features such as mountains, volcanoes, and earthquakes. Scientists study the asthenosphere to better understand the dynamics of plate tectonics and how the Earth's interior works.
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Jameson lives in a city on the shores of the Atlantic Ocean. The temperature fluctuations are relatively small in his city because(blank)takes longer to heat up and cool down due to its high(blank) . First blank choices are: water, land, air Second blank choices are :volume, density, specific heat
Answers
Hey there! I'm happy to help!
We are looking for something that takes a long time to heat up due to a certain property, therefore affecting the weather.
FIRST BLANK CHOICE
The temperature of the land is a result, of the weather, not a cause, so this is not the correct option.
The temperature of the water does not really affect the weather. If the water in your city is cold instead of hot that will not cause the weather to be much different.
However, air is what mainly causes the weather. Air pressure fluctuations can cause certain storms and air is the driving factor of weather. Therefore, the first answer is air.
SECOND BLANK CHOICE
One of the options is specific heat. The actual fill in the blank is that is is harder for the air to heat up because of _______. Putting heat in there makes no sense. It's harder for the air to heat up because of specific heat? This is not the right choice.
The volume of the air is how much space it takes up, and air is basically everywhere, so this is not the correct choice.
The last option is density, or how thick the air is, usually due to how much water there is. This makes sense because if it is very thick you have to have more heat to get through all of the density. It would take longer to warm up a car filled with 20 people than with one person. Therefore, the second option is density.
Have a wonderful day! :D
Answer:
I believe it could be (water & specific heat) let me know if this is correct pls:)
what was the name of the important pass through the rocky mountains? *
Answers
The important pass through the Rocky Mountains in North America is the Continental Divide. The Rocky Mountains run north to south for more than 3,000 miles across western North America. The divide is a high point along the Rocky Mountains that separates waterways that flow into the Pacific Ocean from those that flow into the Atlantic Ocean.
Continental Divide: The Great Divide or Continental Divide is a massive and critical geological formation in the United States and Canada. It runs north to south through the western United States, including Montana, Wyoming, Idaho, Colorado, and New Mexico. The divide then proceeds through Canada's British Columbia, Alberta, and the Yukon territory.
One of the most famous peaks is Mount Elbert in Colorado, which is the highest point in the Rocky Mountains, reaching an elevation of 14,440 feet.Continental Divide Trail: The Continental Divide Trail is a hiking trail that follows the Continental Divide for more than 3,000 miles. The trail runs from the Canadian border to the Mexican border through Montana, Idaho, Wyoming, Colorado, and New Mexico. It is one of the three long trails in the United States, along with the Pacific Crest Trail and the Appalachian Trail.
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Please help (15 points) use your own words and not someone else's from brainy please
In terms of their features, how are the Indus Valley and the Shang civilizations similar? Write one to two paragraphs discussing the similarities between the two civilizations.
Answers
Answer:
you can put some elses answer for this question into quillbot and it rewrites it for you.
Explanation:
:)
move your sky back to fort collins, then find polaris. 7) what is the latitude of fort collins, co, and what is the altitude of polaris in its sky? 8) what is the latitude of panama city, panama, and what is the altitude of polaris in its sky? 9) what is the latitude of minsk, belarus, and what is the altitude of polaris in its sky? 10) what are two ways that polaris can be useful for navigation in the northern hemisphere?
Answers
The latitude of Fort Collins is 40.5853° N, 105.0844° W and the altitude of Polaris in its sky is at 40 feet.
Latitude expresses the separation from the equator to the north or south. Latitude lines go east and west, parallel to the equator, beginning at the equator (0 degrees latitude). Degrees north or south of the equator, up to 90 degrees at the North or South poles, are used to measure lines of latitude.
Along our planet's rotating axis, Polaris, also referred to as the North Star, is located nearly precisely above the north pole of Earth. The Earth spins like a top around this line.
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How do landforms of Central Asia affect where people live?
Answers
Answer:
It has made the water warmer. It provides transportation and access to water for the people.
Explanation:
Gypsum, the substance used in the manufacturing of wallboard (sheetrock), is found in sedimentary layers formed ______.
Answers
Gypsum, the substance used in the manufacturing of wallboard (sheetrock), is found in sedimentary layers formed by evaporation. This process leads to the precipitation of minerals, including gypsum, which then accumulates and forms layers within the sedimentary basin.
Gypsum can also be found in other geological formations, such as caves and hot springs, where it forms due to the dissolution of calcium sulfate minerals by acidic water. However, the primary source of commercially viable gypsum is sedimentary deposits. In addition to its use in wallboard, gypsum is also used in cement, agriculture, and soil amendment.
The largest producers of gypsum are currently the United States, Iran, and China. In the United States, the largest deposits are found in the states of Michigan, Iowa, Texas, and California. The demand for gypsum is driven by the construction industry, particularly in regions experiencing high population growth and new construction. As a result, the global gypsum market is expected to continue to grow in the coming years.
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HELP!! URGENT!!! Will give brainliest (once i learn how!) but I will)
How did the Second New Deal create a legal process to oversee the process of union certification?
A. through the passage of the 1935 National Labor Relations Act
B. through the passage of the 1935 Social Security Act
C. through the establishment of the Works Progress Administration
D. through the establishment of the Federal Writers Project
Answers
Answer:
A
Explanation:
Brainiest! Hope this helps :)
Which statement is true?
a.
Tree branches cannot be fractals.
Which statement is true?
B.Tree branches are an example of the
Sierpinski Triangle.
C. Tree branches are an example of self-
similarity
d.
Tree branches are an example of a man
made fractal.
Answers
Tree branches are an example of self-similarity.
What are Tree Branches?A branch is a woody structural part of a tree that is attached to but not a part of the main(center) trunk. Branches are classified as boughs or twigs depending on their size.
The concept of self-similarity as pertaining to tree branches explains how tree branches possess the ability to have a substructure or an appearance that is comparable to or equivalent to the overall structure.
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