Answer:
Paraguay
Explanation:
Just took the test :)
Light from the sun allows a solar cell to move electrons from the positive to the negative terminal, doing 2. 4×10−19j of work per electron.
The emf of the solar cell moving the electrons from the positive to the negative terminal is 1.5 V
What is electromotive force (EMF)?
The electromotive force (EMF) is defined as the energy supplied by a battery per unit charge. Mathematically, it can be expressed as:
Electromotive force (EMF) = Work (W) / charge (Q)
EMF = W / Q
How to determine the EMF work (W) = 2.4×10¯¹⁹ JCharge on electron = 1.6×10¯¹⁹ CElectromotive force (EMF) =?EMF = W / Q
EMF = 2.4×10¯¹⁹ / 1.6×10¯¹⁹
EMF = 1.5 V
Complete questionLight from the sun allows a solar cell to move electrons from the positive to the negative terminal, doing 2.4×10−19 J of work per electron. What is the emf of this solar cell?
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The solution of system of linear equation x + 2y = 5 and 3x + 5y = 14 is,.
Answer:
// Solve equation [1] for variable x
[1] x = -2y + 5
// Plug this in for variable x in equation [2]
[2] 3•(-2y+5) + 5y = 14 [2] - y = -1
// Solve equation [2] for variable y
[2] y = 1
// Now we know this:
x = -2y+5 y = 1
// Use the y value to resolve x
x = -2(1) +5 = 3
Workaround:
{x,y} = {3,1}
A cfo is looking at what percentage of a company's resources are spent on computing. He samples companies in the pharmaceutical industry and develops the following stem-and-leaf display (leaf unit = 0. 1).
Answer:
i don't understand what is the question it self?
- displaying this data?
Explanation:
In the excerpt from the article "those old piano blues," what is the primary purpose of paragraph 7?.
Answer: To explain why letting go of pianos is acceptable at times
Explanation: Paragraph 7 talks about how broken down pianos may not be such a bad thing. Evidence: "So the pruning of a century’s worth of neglected home pianos might not be such a bad thing, if we continue to cherish the music."
the staar benchmarks are really annoying :/
The explanation of why letting go of pianos is acceptable.
Why does old blue piano signify ?As per the seventh paragraph of the article, the old blue pianos refer to the pianos that may not have been played or used and thus pruning the neglected home pianos may not be such a bad thing, if we continue to cherish music.
The author supports the idea that it may be thus acceptable to leave or get rid of the old piano.
Find out more infirmation about the article.
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Which of the following is expected to happen to a species' population when resources are stable over a long period of time and the species have reached carrying capacity?.
Answer:
1: The population will decrease
2: decrease in predators
3: 9
4: decrease in prey -> decrease in predators -> increase in Prey
5: natality-mortality = immigration-emigration
Explanation:
The population will decrease as it gets stable over a period of time.
What is carrying capacity ?The carrying capacity refers to the maximum population the ecosystem or the environment is able to carry or hold on to. This refers to the max population that can be sustained in the ecosystem and is population dynamics can be modeled from the logistic function. The more the number of species the fewer chances are in their survival as they have reached stability.
Find out more information about the species.
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The complete question is :
When resources are stable over a long period of time, a species' population can be expected to :
O die out.
o increase.
O stay the same.
O decrease.
A student is comparing the different macromolecule types for a biology class. The student described the structure of the molecules but then must complete the table for the functions of these molecules. Which description accurately compares the functions of carbohydrates and proteins and can be used to complete the table?.
Carbohydrates are used to produce energy (glucose), while proteins determine the shape and structure of cells and transport other substances in the body, whether nutrients, hormones.
What are carbohydrates?They are macromolecules that are formed mainly by carbon and hydrogen atoms, they contribute to the storage and obtaining of energy.
What are proteins?It is a macromolecule composed of amino acids that appear chained that direct almost all the vital processes in the organism.
Functions of carbohydrates and proteinsCarbohydrates are highly energetic molecules.Proteins are responsible for giving shape, elasticity and support to cells, accelerate certain metabolic processes and are responsible for carrying substances to and from the interior of cells.Therefore, we can conclude that carbohydrates are used as a source of energy, while proteins are responsible for giving shape and support to cells and transport other substances in the body.
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The correct answer is Carbohydrates and proteins can both be used for energy by the cell.
A 190 g block is pressed against a spring of force constant 1. 60 kn/m until the block compresses the spring 10. 0 cm. The spring rests at the bottom of a ramp inclined at 60. 0° to the horizontal. Using energy considerations, determine how far up the incline (in m) the block moves from its initial position before it stops under the following conditions.
How far up the incline (in m) the block moves from its initial position before it stops is 4.96 m
Law of conservation of energy
From the law of conservation of energy, the total mechanical energy at the bottom of the incline, E equals the total mechanical energy when the mass stops, E'
So, E = E'
U + P + K = U' + P' + K' where
U = initial elastic potential energy = 1/2kx² where k = spring force constant = 1.60 kN/m = 1.60 × 10³ N/m and x = spring compression = 10 cm = 0.1 m, P = initial gravitational potential energy = 0 J, K = initial kinetic energy = 0, U' = final elastice potential energy = 0, P' = final gravitational potential energy = mgh where m = mass of block = 190 g = 0.190 kg, g = acceleration due to gravity = 9.8 m/s² and h = vertical height block moves and K' = final kinetic energy = 0 (both kinetic energies are zero since the body is at rest at both positions)Substituting the values of the variables into the equation, we have
U + P + K = U' + P' + K'
1/2kx² + 0 + 0 = 0 + mgh + 0
1/2kx² = mgh
Vertical height block moves
making h subject of the formula, we have
h = kx²/2mg
substituting the values of the variables into the equation, we have
h = kx²/2mg
h = 1.60 × 10³ N/m(0.1 m)²/(2 × 0.190 kg × 9.8 m/s²)
h = 1.60 × 10³ N/m × 0.01 m²/(3.724 kgm/s²)
h = 16.0 Nm/(3.724 kgm/s²)
h = 4.296 m
Distance up the incline the block moves
Now, the distance up the incline the block moves is L = h/sinФ where
h = vertical height block moves = 4.296 m and Ф = angle of incline = 60.0°Substituting the values of the variables into the equation, we have
L = h/sinФ
L = 4.296 m/sin60.0°
L = 4.296 m/0.8660
L = 4.96 m
So, how far up the incline (in m) the block moves from its initial position before it stops is 4.96 m
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This excerpt uses two words to describe intentionality. What are those two words and what do they mean?.
Answer: choice and mental state
Explanation:
The two words that were used in the excerpt to describe intentionality are: Choice and Mental State.
What is Intentionality?Intentionality is the ability to have a say in a matter. Choice refers to the ability of an individual to determine his desire for something.
The mental state of a person also gives him the ability to be intentional about his choices.
So, the words, choice, and mental state describe intentionality.
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Assume linda has owned an ee bond for 3 years. The fixed rate of interest is 4% and the current value of the bond is $4500. If linda were to cash in the bond tomorrow, how much interest will she lose (approximately) as a penalty?.
Linda will lose $180 interest as a penalty if she cash in the bond tomorrow.
What is an EE Bond?An EE savings bond is rfefereed to as low-risk savings bonds that earn interest until one cashes out or double for a 30-year term. if one cashes out before the stipulated period of time, no interest will be awarded.
For Linda with
Face Value of the bond = $4500The fixed rate of interest is r = 4%If Linda were to cash in the bond tomorrow, it means she will lose
Interest = Face Value x interest rate = 4500 X 4%=$180
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Which revisions would make the diagram of the fire pit more effective? select three options. Adding another step describing all uses of fire pits adding images of different styles of fire pits including images for each step of the process adding a label to indicate the depth of the fire pit including labels for all materials mentioned.
Answer:A,B,d
Explanation:
cuz it is the right one
The following revisions would make the diagram of the fire pit more effective:
Adding images of different styles of fire pits including images for each step of the process.Including labels for all materials mentioned.Adding a label to indicate the depth of the fire pit.So, the correct options are B, C and D .
What is Fire pit?A fire pit is a special space or building designed to hold and manage an outdoor fire. It can be constructed from a variety of materials, including stone, brick, metal, or concrete, and can be produced in a variety of shapes and sizes. Fire pits provide light and heat and are often used for outdoor cooking and entertaining.
Fire pit schematics can be improved with the changes listed below:
Includes several fire pit designs and illustrations of each process step in addition to images.Adding labels to all specified substances.Including a plaque to say the depth of the fire pit.So, the correct options are B, C and D .
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Your question is incomplete, most probably the complete question is:
Which revisions would make the diagram of the fire pit more effective? select three options.
Adding another step describing all uses of fire pits adding images of different styles of fire pits including images for each step of the process adding a label to indicate the depth of the fire pit including labels for all materials mentioned.How many joules are in 148 calories? (1 cal = 4. 18 j).
Answer:
618.64 j
Explanation:
148 calories = 148*4.18 j = 618.64j
An acid is a polar substance that dissolves in water and.
An acid is a polar substance that dissolves in water and gives hydrogen ions
[tex] {h}^{ + } [/tex]
An acid is a polar substance that dissolves in water and produces hydrogen ions.
What are acids?
An acid is a chemical that, when added to water, releases hydrogen (H+) ions. A hydrogen ion is made up solely of a proton. When examining the chemical formulas of various acids, we can see that they all include at least one hydrogen (H).
Any acid that entirely ionizes in solutions is considered a strong acid. This indicates that when dissolved in a solution, it emits the most hydrogen ions or protons.
For instance: Hydrochloric acid or HCl Acids are examples of organic chemicals that belong to the carboxylic acid, sulfonic acid, and phenol groups as well as the inorganic substances known as the mineral acids, such as sulfuric, nitric, hydrochloric, and phosphoric acids.
Therefore, a polar chemical that dissolves in water to form hydrogen ions is an acid.
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This photograph of a wall in california is most representative of what art movement?.
The photograph of a wall in California is most representative of :
Chicano Mural movement Chicano Mural movementThe Chicano Mural movement is an art movement whereby artists used the walls of buildings including schools, housing projects and city centers in various cities to depict mexican-American cultures in order to promote political and social equality for Mexican-Americans living in United states.
The Chicano Mural movement started in the 1960s throught out the southwest.
Hence we can conclude that the photograph of a wall in California is most representative of Chicano Mural movement.
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Please describe the influence of african-american musical artists, including their songs and stylistic elements, on the music of the beatles. How did this manifest in the band's early musical development? did the beatles ever tour or work with african-american musicians? you must write at least 150-200 words to cover the topic briefly but thoroughly.
The American African music artist such as Louis Armstrong broke the barrier and brought about development in music industry which enhance the growth of The Beatles.
The development brought by African music artist makes the Beatles to be a able to produce stars like McCartney, John Lennon and others.
Who are The Beatles?The Beatles can be regarded as the English rock band, that was seen as most influential band of all time which was formed in Liverpool in 1960.
Some of the artist in The Beatles are;
John Lennon Paul McCartneyGeorge HarrisonRingo Starr.However, Hey Jude is been regarded as the biggest hit music of the Beatles' run.
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what time is it in the USA if it is 2:00am in the UK
Answer:
it would be 9:00 PM in the us and 2:00 in the uk
If there are 180 members of the 8th grade class, then what percent preferred either the museum or the sports complex?.
A car of mass 700 kg and moving at a speed of 30 m/s.
Answer:
10 m/s
Explanation:
An 800 kg cart is coasting at a constant velocity of 15 m/s. As the car coasts, a 200 kg block is dropped into it. What would be the velocity of the cart now?.
Using conservation of momentum, we will see that the new velocity is 12 m/s.
How to use conservation of momentum?
We know that the momentum un a closed system must be conserved, in this case, our system is the cart and the block.
Initially, the cart moves with a velocity of 15 m/s, and has a mass of 800 kg, then the initial momentum is:
P = 15m/s*800kg = 12,000 kg*m/s
Then a block of 200kg is dropped on the cart, so the new mass of the cart is 1,000 kg, then the new momentum is:
P = 1,000kg*V'
Where V' is the new velocity, and by conservation of momentum, we must have that:
12,000 kg*m/s = 1,000kg*V'
( 12,000 kg*m/s)/1,000kg = V' = 12 m/s.
The new velocity of the cart is 12 m/s.
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You are a purchasing manager for a retailer of high-end kitchen products. You know that malinox, inc. Is the best manufacturer of kitchen knives in the industry. Malinox brand kitchen knives would be an ideal complement to your store's inventory, but you know that malinox is selective with whom they sell their products. Discuss what is legally necessary to make a valid offer to malinox. In doing so, discuss the advantages and disadvantages of making the offer as specific as possible.
The legally necessary to make a valid offer to Malinox is that the purchasing manager should state their case to Malinox about their zeal or ability to sell their product.
Thereafter, they can begin negotiation on the quantity of the product they are going to buy from them and also the unit price per the product. The offer they are to make must have all their intention to form legal relations.
The Advantages and Disadvantages of making a Contract is that;
There is great flexibility.One can have Increased earnings..There is also greater room for growth and development.There is increase in terms of Responsibilities.There is high level of Uncertainty in terms of success or failure.What is Consignment?This is known to be when a business is said to be selling a product or a group of products that they bought from another company, due to a contract they have entered by the producer.
This often takes place all the time and in a ranges/variety of businesses.
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Let n be an integer that can be represented by 2^ a 3^ b 5^ c If a, b and care integers such that 0<a<b<c and a + b + c = 7 what is a possible value for n?
A. 4500
B. 11250
C. 2700
D. 46875
E. 6750
Helium is most likely to behave as an ideal gas when it is under.
Answer:
High Pressure and low temperatures
Explanation:
You're Welcome
What is the name of the large emerald in the smithsonian? bueno grande el magnifico guatavita beauty gachala.
Answer:
The answer is D: Gachala
Explanation:
The name of the largest emerald in the Smithsonian Institute of Washington is Gachala Emerald. Thus, option D. is correct.
What is emerald?The emerald is a gemstone that is green in color. They are highly precious stones as they are variety of mineral beryl.
Gachala Emerald is the most precious and famous emerald of the world. It was discovered in 1967. It is declared as the largest gemstone by the institute of Washington, DC.
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If you travel 300km in 6 hours, what is your average speed?.
Answer:
50 km. explanation : you divide 6 by 300 you get 50 that's the answer
In the management assistance area, the small business administration (sba) provides all of the following except:.
What the small business administration (sba) do not provides is
business incubators.
What is Small Business Administration?The U.S. Small Business Administration can be regarded as the United States government agency which do offer support to entrepreneurs as well as small businesses.
Their function include;
loan guaranteesadvice from retired executivesaccess to venture capitalistsLearn more about Small Business Administration at;
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Which graph represents the function f (x) = startfraction 2 x minus 1 over x minus 1 endfraction?.
Answer:
i believe its C
Explanation:
Answer:
The correct answer is C.
Explanation:
~Hope this helps!
What does the underlined word mean in the following sentence? hay doce huevos en una docena. 21 12 31 41.
B. 12
Explanation:
I believe its 12 so i hope this helps :)
Answer: B. 12
Explanation: On Edge!
For real numbers $x,$ what is the largest possible value of \[ 5 - (x-3)^2 ?\].
The largest possible value of f(x) will be -∞.
LimitFor solving this question, you can calculate the limit of f(x) for x→∞. Since the definition of limit is: the limit of f(x), as x approaches b , equals L. See: [tex]\lim _{x\to \ b \:}f(x))=L[/tex]
Therefore:
[tex]\lim _{x\to \infty \:}\left(5-\left(x-3\right)^2\right)\\ \\ \lim _{x\to \infty \:}\left(5\right)-\lim _{x\to \infty \:}\left(\left(x-3\right)^2\right)[/tex]
Applying the Constant Law - The limit of a constant is the constant itself: [tex]\lim _{x\to \infty \:}\left(5\right)=5[/tex]
Applying the Difference Law - The limit of a difference is the difference of the limits: [tex]\lim _{x\to \infty \:}\left(\left(x-3\right)^2\right)=\infty[/tex]
Thus,
[tex]\lim _{x\to \infty \:}\left(5-\left(x-3\right)^2\right)= \lim _{x\to \infty \:}\left(5\right)-\lim _{x\to \infty \:}\left(\left(x-3\right)^2\right)= 5- \infty=- \infty[/tex]
The largest possible value of f(x) will be -∞.
The result is consistent since it is possible to note that [tex](x-3)^2[/tex]positive number. Also, see that there is a difference between 5 and [tex](x-3)^2[/tex]-∞.
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Explain how the use of agricultural chemicals contributed to the change in rice production.
Answer:
changes to natural systems by landscape modification
Your take home pay is $1500 after you have 22% withheld in taxes. What is your gross pay before the taxes were withheld? round your answer to the nearest penny.
Using the values given for the take home and tax as 227% , we assumed a gross pay of x value and found the gross pay to be $1923.076
Calculation of TaxGiven Data
Take home pay = $1500
Tax = 22% of gross
Let the gross pay be x
Hence, let us find 22% of x
= 22/100*x
=0.22x
Amount of pay = 0.22x
We know that the Take home pay is = Gross - Tax
Substituting our data we have
1500 = x-0.22x
1500 = 0.78x
Divide both sides by 0.78
x = 1500/0.78
x = $1923.076
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Which option is an example of biodiversity being impacted on the species level?(1 point).
The example of biodiversity being impacted on the species level is the organisms having a variety of traits present.
What is Biodiversity?This is a measure of the variation of the genetics in organisms which often gives rise to the exhibition of different traits.
An example is a deer in an ecosystem in which the tail could be of different colors such as white, black etc which represents biodiversity.
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