Answer:
Explanation:
Answer: Lower In Pitch.
A student sees a train that is moving away from her and sounding its whistle at a constant frequency. compared to the sound produced by the whistle, the sound observed by the student is
Lower In Pitch.
calculate the ratio of the velocity of molecular nitrogen gas to the velocity of carbon dioxide gas at the same temperature.
The ratio of the velocity of molecular nitrogen gas to the velocity of carbon dioxide gas at the same temperature is 0.045.
What is speed?The distance covered by the particle or the body in an hour is called speed. It is a scalar quantity. It is the ratio of distance to time.
We know that the speed formula
[tex]\rm v = \sqrt{\dfrac{3RT}{M}}[/tex]
where R is the universal gas constant and M is the molar mass.
Then the ratio of the velocity of molecular nitrogen gas to the velocity of carbon dioxide gas at the same temperature.
The molar mass of nitrogen will be
N₂ = 14 × 2 = 28
The molar mass of carbon dioxide will be
CO₂ = 12 + 16 × 2 = 44
Then we have
[tex]\rm \dfrac{v_{N_2}}{v_{CO_2}} = \dfrac{\sqrt{\frac{3RT}{28}}}{\sqrt{\frac{3RT}{44}}}\\\\\\\dfrac{v_{N_2}}{v_{CO_2}} = \sqrt{\dfrac{44}{28}}\\\\\\\dfrac{v_{N_2}}{v_{CO_2}} = 0.04477 \approx 0.045[/tex]
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Amira has a pyramid shaped plant pot. it has a square base with a side length of 30\text{ cm30 cm30, start text, space, c, m, end text, and the height of the pot is 30\text{ cm30 cm30, start text, space, c, m, end text.
If the height is 30 cm and the base length is 30 cm. Then the volume of the square pyramid will be 9000 cubic cm.
What is Geometry?It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
Amira has a pyramid-shaped plant pot. it has a square base with a side length of 30 cm and the height of the pot is 30 cm.
Then the volume of the square pyramid will be
V = 1/3 x area of base x height
Area of base = 30²
Height = 30
Then we have
V = 1/3 x 30² x 30
V = 9000 cubic cm
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what caused relations to deteriorate between the united states and the soviet union in 1979? the united states invaded afghanistan to prevent the spread of communism. the soviet union invaded afghanistan to help its communist government. the shah of iran entered the united states, which angered communists. the united states fought the taliban, which angered communists.
Answer:The Soviet Union invaded Afghanistan caused relations to deteriorate between the United States and the Soviet Union in 1979.
Explanation:
The Soviet Union, officially the Union of Soviet Socialist Republics, was a socialist and communist state that spanned much of Eurasia from 1922 to 1991. It was nominally a federal union of fifteen national republics; in practice its government and economy were highly centralized until its final years. The country was a one-party state governed by the Communist Party of the Soviet Union, with Moscow as its capital within its largest and most populous republic, the Russian SFSR. Other major urban centers were Leningrad, Kiev, Minsk, Tashkent, Alma-Ata and Novosibirsk. It was the largest country in the world, covering over 22,402,200 square kilometres, and spanning eleven time zones.
The Soviet Union invaded Afghanistan to help its communist government.
What is Soviet Union?The Soviet Union, officially known as the Union of Soviet Socialist Republics (USSR), was an Eastern European and northern Asian federal socialist state that existed from 1922 to 1991.
It was the world's largest country by land area, covering over 22 million square kilometres, and was made up of 15 republics.
The Soviet Union invaded Afghanistan in 1979 to support the communist government in power at the time.
The Soviet intervention was met with opposition from Afghan rebel forces known as the Mujahideen, who were backed by the US and other Western countries.
Thus, the conflict lasted more than a decade and ended with the withdrawal of Soviet forces in 1989, but the consequences for both Afghanistan and the Soviet Union were long-lasting.
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describe the role of one global brand in changing culture
Explanation:
convergence of business and consumer culture
read and chose the correct option, based on what you learned from the lesson. your friend teresita from el salvador showed you her parent's old currency which is valued at two thousand. those bills used to be his country's official currency before the u.s. dollar became its present official currency. you found it interesting that the former currency honored an important sailor who arrived in or on the american continent centuries ago. based on the text information and what you learned from the lesson, what currency is the text referring to? please, select the correct number format too. 1.000 colones 1.000 euros 2.000 euros 2.000 colones
Answer:
2.000 colones
Explanation:
colones are el salvadors old currency so which it says was 2000 thoundes.
Answer:
2.000 colones
Explanation:
If x = y2z2, which of the following is equal to xy?
The value of xy from the given equation is (y ²z²)(√x÷ z²)
How to solve equation?x = y ²z²
make y the subject
y² = x ÷ z²
y = √x÷ z²
xy = x × y
xy = (y ²z²)(√x÷ z²)
Therefore, the value of xy from the given equation is (y ²z²)(√x÷ z²)
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Select the correct answer from each drop-down menu. which event motivated the opposing parties of china to fight together? in 1931, the invasion of manchuria persuaded the chinese party and the warlords to unite with the kuomintang to defeat the foreign enemy.
The Japanese invasion persuaded the Chinese Communist Party and warlords to unite with the Kuomintang (Japan, Communist).
What was the invasion of Manchuria?The invasion of Manchuria was the Japon invasion of this region (Northeast Asia) in hands of the Kwantung Army.
During this period, the Kwantung Army controlled the Manchurian railway, which was fundamental for the economy.
In conclusion, the Japanese invasion persuaded the Chinese Communist Party and warlords to unite with the Kuomintang.
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In which asian nation do the people play the greatest role in deciding who the rulers are and what decisions are made?
The scatterplot represents the total fee for hours renting a bike. the line of best fit for the data is y = 6.855x + 10.215.
The scatterplot represents the total fee for hours renting a bike. The table which correctly shows the residual values is table C.
What are the residual values?For a given input and output pair, if the prediction be y' from the line of best fit for that input x.
Then the residual value will be calculated as per the following formula:
Residual value = Actual value - Predicted value
Given, the line of best fit for the data is: y = 6.855x + 10.215
Let the input data be: x = 1,2,3,4 and 5
The actual output y, and predicted output y' are listed in the table form as,
x y y'=6.855x + 10.215
1 14.95 17.07
2 25.50 23.925
3 32 30.78
4 38.95 37.635
5 42.50 44.49
The residual values y - y' for the given data and the predicted data is:
x y -y'
1 -2.12
2 1.575
3 1.22
4 1.315
5 -1.99
These are the approximated values of the residual which matches with the table C.
Thus, the table which correctly shows the residual values is table C.
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Answer:
C.
Explanation:
you spin a spinner 48 times. out of the 48 trials, the pointer lands 6 times on section two. what is the experimental probability of the pointer landing on section two?
Answer: 21
Explanation: 6/48 = 21
Describe the migration patterns homo sapiens took out of africa during the pleistocene. what was the impact of those migrations?
The description and impact of early migrations of homo sapiens is; As detailed below.
What was the migration pattern of early humans?
Homo Sapien migrations are the earliest migrations and expansions of archaic and modern humans across continents and are believed to have begun approximately 2 million years ago with the early expansions of hominins out of Africa of Homo erectus. This initial migration was followed by other archaic humans.
Anthropologists have researched to find out that early humans used to move from one place to another due to climatic conditions. One theory suggests that early man lived in Africa and then moved out from the African continent in successive waves.
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Karl bought new and used video games at a sale.
The prices for all new video games were the same.
. The prices for all used video games were the same.
The ratio of the new video games Karl bought to the used video games Karl bought was 1:3.
. The ratio of the total price of the new video games Karl bought to the total price of the used video games Kari
bought was 2:3
Select the ratio of the price of one new video game to the price of one used video game.
.
2:1
2:5
2:9
4:5
DOLL
Answer:
it could be 2:1
Explanation:
because if you add them and then simplify them.
The professor informs the class that there will be a test next week. what is the probability that a randomly selected student studied for the test if they pass it with a b or higher? 0.20 0.55 0.60 0.80
The probability that students who were randomly selected studied for the test, if they pass it with a B or higher grade is: D. 0.80.
How to calculate the probability?In this exercise, you're required to determine the probability that students who were randomly selected studied for the test, if they pass it with a B or higher grade. Thus, we would apply Bayes's theorem.
Let S represent studied for.Let B represent a score of B or higher gradeTherefore, we need to find P(S|B):
[tex]S|B = \frac{B|S \times S}{B|S \times S\; +\; B|S' \times S'} \\\\S|B = \frac{0.55 \times 0.6}{0.55 \times 0.6 \;+ \;0.2 \times 0.4}\\\\S|B =\frac{0.33}{0.33 + 0.08} \\\\S|B =\frac{0.33}{0.41}[/tex]
S|B = 0.80.
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Complete Question:
At the beginning of the semester, a professor tells students that if they study for the tests, then there is a 55% chance they will get a B or higher on the tests. If they do not study, there is a 20% chance that they will get a B or higher on the tests. The professor knows from prior surveys that 60% of students study for the tests. The probabilities are displayed in the tree diagram.
Sedimentary rock formation occurs when igneous, metamorphic, or other sedimentary rocks are exposed to the unyielding forces of nature found on the earth's surface. the formation of sedimentary rock occurs by several processes over millions of years. rock sediments are carried to other places by the wind, running water, and gravity. as these forces lose energy settling takes place. the sediments settle out of the air or water in rock particles graded by size with heavier pieces settle out first. which term describes this process of sedimentary rock formation? a) deposition b) lithification c) physical weathering d) chemical weathering
you will not hurt your credit rating if you brainly
The credit rating of an individual will not be affected if he repays the credit debt on time.
What is a credit rating?The credit rating can be given as the score that helps an individual to grant a loan and identifies the payback ability of a debtor for the further loan process.
The amount borrowed with the credit card has to be paid within the due date period. The on-time payment of the credit dues will make an individual not affect their credit rating.
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Altitudes $\overline{ad}$ and $\overline{be}$ of acute triangle $abc$ intersect at point $h$. if $\angle ahb = 128^\circ$ and $\angle bah = 28^\circ$, then what is $\angle hca$ in degrees?
The Angle HCA is equal to 52°. This is arrived at using the knowledge of the Total value of Angles in a Triangle and the Total Value of Angles in a Polygon.
What other principles were used to arrive at the answer?
The other principles of mathematics that were used to arrive at the above answer are:
Total Angles on a straight line; Total Angles on a point; and Line segments.What are the Steps to the Solution?Step 1 - Recall that we have been given Angles AHB and BAH to be 128° and 28° respectively.
We also know that:
The sum of angles in a triangle is 180°;...................AThe sum of angles on a straight line is 180°;.........BThe sum of angles in a polygon is 360°; while.....CThe total sum of angles at a point is 360°.............DSince A...therefore:
When ∠AHB (128°) and ∠BAH are taken from 180° we have DBA = ∠28°.
By observation, we can deduce that ∠BDE, ∠CDH, ∠CEH and ∠AEH are all right-angled triangles.
Using the above, we are able to repeat this process of solving for each angle until we have ∠HCA.
To verify that our answer is correct, recall that sum of angles in a polygon is 360°
That means:
∠BDA + ∠DHE + ∠CEH + ∠HCA = 360°
That is, 90+ 128 + 90 + 52 = 360°
See attached images and;
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which emotion does the following passage most appeal to? thousands of innocent whales and dolphins are cruelly drowned each year in nets meant for catching fish.
Answer:
the awnser would be pity
Explanation:
I took the exam
The emotion that the passage as written in the question appeal to is that of pity.
What is an emotion?An emotion refers to an intense feeling which oftentimes have the capacity to overwhelm a person's sense of sound judgment.
The emotion that the passage as written in the question appeal to is that of pity.
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select the type of job best demonstrated in each example. damian drives a taxi in the evenings for ten hours per week. the amount that alvin is paid for his work loading tank cars varies, depending on how much time he works each week. a government agency hires vicky as a traffic technician after making sure she has a bachelor's degree. wen's employer provides health insurance for her and her family.
Answer:
Damian drives a taxi in the evenings for ten hours per week. (part-time job)
The amount that Alvin is paid for his work loading tank cars varies, depending on how much time he works each week. (hourly job)
A government agency hires Vicky as a Traffic Technician after making sure she has a bachelor's degree. ( advanced job)
Wen's employer provides health insurance for her and her family. ( job with benefits)
Explanation:
edge 2022
I just answered it and got them all correct
30 points and I'll mark brainlist
Think about the benefits of each type of federal student loan and then discuss how you feel about taking out student loans to pay for college. Consider the options that you have for funding your education besides taking out loans.
Answer:
Federal student loans generally have lower interest rates than private loans. Rates for new federal loans are also fixed, meaning they'll stay the same during your entire loan term. Private loans frequently offer variable rates, which increase whenever the Federal Reserve raises the interest rate benchmark.
Harry is solving the linear equation 16 + 2x - 11 = 9x + 5 - 7x . His final two steps are: 5 + 2x = 2x + 5 5=5
The final two steps of Harry as described in the task content are very correct.
How to solve linear equation?According to the task content;
It follows that the final steps of Harry's evaluation of the linear equation cam be identified as follows;16 + 2x - 11 = 9x + 5 - 7x
16 - 11 + 2x = 9x - 7x + 5
5 + 2x = 2x + 5
By cancelling out like terms of the variable; we have;
5 = 5
Therefore, the Harry's final two steps although in another form are very correct.
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what does the reader learn about ogilvy from the passages? ogilvy’s curiosity tends to overcome his better judgment. ogilvy’s desire for celebrity causes him to act carelessly. ogilvy loves science so much that he is willing to risk his life for it. ogilvy wants to have a good story to bring back to town with him.
The inference that the readers can learn about Ogilvy from the passages is; A. Ogilvy’s curiosity tends to overcome his better judgment.
What is the Inference From the Passage?From the passage when read online, we can say that his curiosity appeared to overcome his judgement.
However, the thing about this curiosity is that it comes before his judgement and as such we can say that what the reader can learn about Ogilvy from the passages is that Ogilvy’s curiosity tends to overcome his better judgment.
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AAAAAAAAAA
just took test
calculate the solubility of in water at . you'll find data in the aleks data tab. round your answer to significant digits.
Based on the calculations, the solubility of PbCrO₄ in water at at 25°C is equal to 1.4 x 10⁻⁸ M.
How to calculate the solubility of PbSO₄?The properly balanced chemical equation for the dissociation of PbSO₄ is given by:
PbCrO₄(s) ⇆ Pb²⁺(aq) + CrO₄²⁻(aq)
Initial 0 0
Change +x +x
Equib. conc. x x
Note: The Ksp of PbCrO₄ at 25°C is equal to 2.0 × 10⁻¹⁶.
Next, we would set up an equation from the ICE table for its Ksp;
Ksp = [Pb²⁺][CrO₄²⁻]
2.0 × 10⁻¹⁶ = [x][x]
2.0 × 10⁻¹⁶ = x²
x = √2.0 x 10⁻¹⁶
x = 1.4 x 10⁻⁸ M.
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why do some dystopias emphasize the use of misinformation?
Answer:
In dystopian literature, misinformation helps to keep inefficient and unfair systems in place because characters are convinced that they are efficient and fair. A final theme in dystopian literature is lack of individuality. One of the most striking images from The Handmaid’s Tale is the dress code.
Explanation:
hope this helps if not let me know
A consumer must decide between purchasing a new television or a new computer. if the consumer chooses the television, then what is the opportunity cost of this decision?(1 point)
Answer:
nothini depends on how much it cost for both of them
Choose the best spanish word to complete the sentence. Hugo _________con pablo ayer. Habla habló hablaron hablé
According to the context, the verb form in Past tense to complete the sentence is "habló".
What is Past tense?It is a verb tense that indicates actions or states that happened at different times in the past.
In the sentence "Hugo habló con pablo ayer", "habló" refers to an action that happened yesterday, it is the correct verb that coincides with the subject.
Therefore, we can conclude that according to the context, the verb form in Past tense to complete the sentence is "habló".
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what is the opinion nicholas spanos had regarding dissociative identity disorder?
Nicholas Spanos opinion on the dissociative identity disorder was the consideration of the identities being the result of the social norms and not trauma.
Who was Nicholas Spanos?Nicholas Spanos was a professor of psychology and the director of the Laboratory of Experimental Hypnosis at Carleton University. He worked on beliefs of hypnosis. The studies reveal hypnosis is considered as the state being admitted by the individual itself.
The studies of Spanos on dissociative identity disorder reveal that there is the presence of multiple identities the result of the social norms and not trauma.
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Answer:
Nicholas Spanos claimed that Dissociative Identity Disorder is just a "social construction" rather than a "disease." He claimed that there is no link between biochemical disturbance and DID; it is just a role play.
Explanation:
I got 100% with this response.
which type of figurative language is included in this passage?
Answer:
1.) Similie
2.) Water
Explanation:
Edge 2022
Which of these events inspired a greater emphasis on pluralism and multiculturalism in contemporary literature?
The civil rights movement was the event which inspired a greater emphasis on pluralism and multiculturalism in contemporary literature.
What is contemporary literature?Contemporary literature is defined as literature written after World War II through the current day.
The Civil Rights Movement of the 1950s and 1960s came about out of the need and desire for equality and freedom for African Americans and other people of color.
Hence, it was the event which inspired a huge population.
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The multiculturalism and pluralism in contemporary literature were greatly inspired by the civil rights movement.
What are pluralism and multiculturalism?Pluralism is the phenomenon that exists in the society where the minority groups get involved and participate with full capacity but the cultural and ethnic differences are still present.
Multiculturism is the simultaneous existence of diverse cultural, ethnic, and religious groups. These were greatly influenced when the civil rights moment was at its peak.
Therefore, the civil rights moment affected contemporary literature.
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complete the following sentences on reducing risk by choosing an answer from each of the drop-down menus. one way to reduce an injury risk at home is by placing bathroom cleaning solutions in . one way to reduce an injury risk at school is by before handling laboratory equipment. prescription medication should be stored away from children and used .
Answer:
labeled containers, reading the safety notes in the laboratory manual, only be the person prescribed the medication (was correct for me)
Explanation:
Answer:
1. Labled containers
2. Reading the safety notes in the labotory manual
3.Only by the person prescribed the medication
Explanation:
got all correct on edge :)
what is the equation of the line that is parallel to the given line and passes through the point (12, −2)? y = – + 10 y = – + 12 y = – – 10 y = – 12
Answer:
y=-5x
Explanation: