Answer:
An F Vector Force
Example:
The work done by the force on the particle is 1 J.
The angle between the force and the displacement is 81.87⁰.
The given parameters;
F = (4i - 3j)
displacement of the particle, s = (i + j)
The work done by the force on the particle is calculated as follows;
The angle between the force and the displacement is calculated as follows;
Alterations in various aspects of society over time.
alterations in various aspects of society over time according to pitrim Sorkin cyclical theory of social change the principle of immant change is the natural tendency of a society structure to swing back and forth between the ideotional and sensate culture
A significant alteration to a society's structure is social change. Numerous facets of a society, including its economic, political, cultural, ethical, and identity problems, can be affected by social change.
What Alterations in various aspects of society over time?The major alteration of social structure and cultural norms over time is referred to as social change. Social ties that have remained constant over time and become routine or repetitive are referred to as social structures.
Among the key forces influencing societal development are population growth and composition, the natural environment, social conflict, culture, and technology.
Cultural lag is the term used to describe a delayed shift in one area of society as a result of a change in a different area of society.
Therefore, Alterations in social change various aspects of society over time.
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A bat emits a sound at a frequency of 3. 00 × 104 hz as it approaches a wall. The bat detects beats such that the frequency of the echo is 900 hz higher than the frequency the bat is emitting. The speed of sound in air is 340 m/s. The speed of the bat is closest to.
Taking into account the Doppler efect, the speed of the bat is closest to 5.02 [tex]\frac{m}{s}[/tex].
The Doppler effect is defined as the apparent frequency change of a wave produced by the relative movement of the source with respect to its observer. In other words, this effect is the change in the perceived frequency of any wave motion when the sender and receiver, or observer, move relative to each other.
The following expression is considered the general case of the Doppler effect:
[tex]f1=f\frac{v+-vR}{v+-vE}[/tex]
Where:
f1, f: Frequency perceived by the receiver and frequency emitted by the issuer respectively. Its unit of measurement in the International System (S.I.) is the hertz (Hz), which is the inverse unit of the second (1 Hz = 1 s⁻¹) v: Velocity of propagation of the wave in the medium. It is constant and depends on the characteristics of the medium. In this case, the speed of sound in air is considered to be 340 m/s vR, vE: Speed of the receiver and the sender respectively. Its unit of measure in the S.I. is the m/s ±, ∓: We will use the + sign:In the numerator if the receiver approaches the sender
In the denominator if the sender moves away from the receiver
We will use the sign -:In the numerator if the receiver moves away from the emitter
In the denominator if the sender approaches the receiver
In this case, a bat emits a sound at a frequency of 3.00×10⁴ Hz= 30,000 Hz as it approaches a wall.
The bat detects beats such that the frequency of the echo is 900 hz higher than the frequency the bat is emitting.
So, you know:
f1= 30,000 Hz + 900 Hz= 30,900 Hzf= 30,000 Hzv= 340 m/svE=vR= vbatReceiver approaches the senderReplacing in the expression is considered the general case of the Doppler effect:
[tex]30900 Hz=30000 Hz\frac{340 \frac{m}{s} +vbat}{340\frac{m}{s} -vbat}[/tex]
Solving:
[tex]\frac{30900 Hz}{30000 Hz} =\frac{340 \frac{m}{s} +vbat}{340\frac{m}{s} -vbat}[/tex]
[tex]1.03=\frac{340 \frac{m}{s} +vbat}{340\frac{m}{s} -vbat}[/tex]
1.03×( 340[tex]\frac{m}{s}[/tex] -vbat)= 340 [tex]\frac{m}{s}[/tex] + vbat
1.03×340[tex]\frac{m}{s}[/tex] - 1.03×vbat= 340 [tex]\frac{m}{s}[/tex] + vbat
350.2[tex]\frac{m}{s}[/tex] - 1.03×vbat= 340 [tex]\frac{m}{s}[/tex] + vbat
350.2[tex]\frac{m}{s}[/tex] - 340 [tex]\frac{m}{s}[/tex]= vbat + 1.03×vbat
10.2 [tex]\frac{m}{s}[/tex]= 2.03×vbat
10.2 [tex]\frac{m}{s}[/tex]÷ 2.03 = vbat
5.02 [tex]\frac{m}{s}[/tex]= vbat
In summary, the speed of the bat is closest to 5.02 [tex]\frac{m}{s}[/tex].
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brainly.com/question/17107808https://brainly.com/question/14929897If you believe that you have a water sample that is contaminated with barium, what could you add to it to test it?.
Answer: potassium sulfate
Explanation:
Write your own lyrics in english using the music/rhythm of your favorite song.
Do you ever wish your dreams could come true?
Dream of things that won't make you boo.
Dreams can come real,
just make sure you make them feel.
If it's a nightmare make sure you hide up the back stairs,
and if it's a good dream make sure you make it seen.
So I really wish dreams were real,
that way I could start to feel.
Explanation: Sorry it isn't that good I did the best I could. It's also rrrreeeealllllllyyyyy short sooo.......
Which of the following describes a consumer installment loan?.
Answer: hums 202 Which of the following describes a consumer installment loan? A. A loan you get based on the tax refund that you expect to receive. B. A loan that is repaid in equal monthly payments for a specific period of time, usually several years. C. A loan where you have to promise to give the bank your assets if you do not repay the loan. D. A loan for consumer goods where you own the item(s) at the end of the payment period.
Explanation: all you have to do is search up the answer to this on brainly
Rosalyn is a teacher who plays a review game with her class. The game involves writing each student's name on an identical slip of paper and selecting students at random. Here's the makeup of her class:.
Answer:
like hw
Explanation:
how did the officer feel about himself
Answer:
how happy
Explanation:
My mom/suggested/keep the surroundings/clean and green.
Considering the incomplete sentence in the question, to make the sentence complete, we have "My mom suggested to keep the surroundings clean and green."
The word "to" is a preposition. It is used to express a situation approaching a specific condition.
Here, the preposition "to" is used to describe the condition in which the surroundings must reach.
The word "to" can also serve as an adverb or incentive marker.
Hence, in this case, it is concluded that the complete and correct sentence is "My mom suggested to keep the surroundings clean and green."
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You can have ice cream you finish your dinner.
The comparative financial statements of marshall inc. Are as follows. The market price of marshall common stock was $82. 60 on december 31, 20y2.
It should be noted that the working capital will be $1584000, the current ratio is 2.80 while the quick ratio is 2.20.
From the complete information, the working capital is calculated thus:
= Current asset - Current liabilities
= 2464000 - 880000
= 1584000
The current ratio will be:
= Total current asset / Total current liabilities
= 2464000 / 880000
= 2.80
The quick ratio will be calculated thus:
Total current asset = 2464000
Less: Inventory = 420000
Less: Prepaid expenses = 108000.
Total quick assets = 1936000
Total current liabilities = 8800000
Quick ratio = 2.20
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Which of the following is not a possible tax or deduction that could be withdrawn from your paycheck?.
Government often collect taxes from its people in different ways. Sales tax is not a possible tax or deduction that could be withdrawn from your paycheck.
Sales tax often regarded as consumption tax. It ia usually imposed by the government only on the sale of goods and services and not from paycheck.
It is known to be imposed at the point of sale. It is taken by the retailer, and thereafter given to the government.
Conventional or retail sales taxes is simply charged only to the consumer or end user of a good or service.
The full question below
Which of the following is NOT a possible tax or deduction that could show up on your paycheck?
State income tax
Contributions to retirement savings
FICA
Sales tax
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Which of the following factors best supports the argument in the excerpt?.
Answer:
probaly awnser C
Explanation:
or B or a
Which of the following statements is true of postmodern cultural spaces.
A cell with 10 chromosomes undergoes mitosis.
Answer:
Yes every cell undergoes mitosis
If there is more than one speaker, how should they be all noted?.
Answer:
By their names. If the names are not known you should mark them as speaker 1, speaker 2, speaker 3, etc.
Explanation:
An entrepreneur is considering the purchase of a coin-operated laundry. The current owner claims that over the past 5 years, the mean daily revenue was $6750 with a population standard deviation of $265. A sample of randomly selected 30 days reveals a daily mean revenue of $6280. If you were to test the null hypothesis that the daily mean revenue was $6750, which test would you use?.
Based on the given value of sample size and the population standard deviation, the required test for the null hypothesis is the Z test of population mean.
The Z test of population is used to test the null hypothesis of a Normal distribution. Since, the sample size is large (>30) and the variance of the population is known, the most appropriate test of hypothesis to use is the Z test of population mean.Learn more : https://brainly.com/question/25576166
Yesterday, the temperature at noon was 11. 4℉. By midnight, the temperature had decreased by 15. 7 degrees. What was the temperature at midnight?.
Answer:
It is 4.3
Explanation:
because 15.7 minus 11.4 is equal to 4.3.
In the cycle shown is mantle made of silicate rocks why.
Answer:
The rocks that make up Earth's mantle are mostly silicates—a wide variety of compounds that share a silicon and oxygen structure. Common silicates found in the mantle include olivine, garnet, and pyroxene.
Explanation:
What is an example of new technology having a positive impact on sustainability brainly.
Examples of sustainable technology include:
Electric transportation. LED light technology. Solar power.Sustainable technology is a form of technology that have a positive social, economic or environmental impact. Sustainable technologies are innovations with positive impacts with the aim of reducing the negative impact humanity have created on earth.
Examples of sustainable technology include:
Electric transportation. LED light technology. Solar power.Find out more at: https://brainly.com/question/2991944
Select the two recommendations that would decrease the margin of error of the interval.
From the options given, the only option which would result on having a reduced error margin, is to increase the sample size.
Recall :
Margin of Error = Zcritical × σ/√n
Increasing the mean would have no impact on the margin of error as it is not a part of the factors which affects the margin of error value. Increasing the standard deviation, which is the Numerator will result in an increased margin of error value. By raising the confidence level, the critical value of Z will increase, hence widening the margin of error. The sample size, n being the denominator, would reduce the value of error margin.Hence, only the sample size will cause a decrease in the margin of error of the interval.
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A significant factor in the exponential population growth over the past two centuries is:.
A significant factor in the exponential population growth over the past two centuries is; good sanitation and medical advances.
In exponential growth, the rate of the growth in population usually increases over time and this is usually directly proportional to the size of the population.
Now, this rate discussed above usually causes the population to increase much more faster.
We can say that good sanitation and medical advances will contribute to the exponential growth of the human population due to the fact that when an environment is clean, it will prevent the accumulation of dirt and infectious particles to accumulate inside the body which means less contraction of deadly diseases.
Secondly, medical advances have helped in curing of deadly diseases that cause more deaths and this means the death rate will decrease and population will increase.
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Which one of the following reactions would produce the largest amount of heat per mole of hydrogen?.
Answer:
your answer link in photo
4 t-shirts and a hat costs £31. 00 2 t-shirts and a hat costs £17. 0. How much does a t-shirt cost? how much does a hat cost?.
Answer:
T-Shirt Cost = £7
Hat Cost = £3
Explanation:
Important Information:
4 t-shirts and a hat costs £31.00
2 t-shirts and a hat costs £17.00.
Here we assume t-shirt be x and hat be y.
Explanation/Solution:
Based on the above information, the calculation is as follows:
4x + y = 31
2x + y = 17
Now subtract equation 2 from 1
2x = 14
x = 7
So y is
4(7) + y = 31
28 + y = 31
y = 3
Therefore we can conclude that The t-shirt cost £7 and Hat cost £3.
Which of the following is a difference between phase i and phase ii of meiosis.
Answer: Phase I results in two diploid daughter cells and phase II results in four diploid daughter cells
Explanation:
i took the test
A ratio estimates the risk associated with investing in a firm.
A ratio which estimates the risk associated with investing in a business firm is called: solvency ratio.
Solvency ratio can be defined as a key metric that is typically used to measure the ability of a business firm to meet its long-term debt obligations.
Basically, a solvency ratio measures the financial position of a business firm and the extent to which its assets cover long-term debt obligations (commitments), especially for future payments and the liabilities.
In conclusion, a ratio which estimates the risk associated with investing in a business firm is called solvency ratio.
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What is created when rocks bend due to the compression of tectonic plates? Question 1 options: Faulting Subduction Folding Whipping.
Answer:
Third option: Folding
Explanation:
When the movement of tectonic plates causes stress and pressure on a rock, and it bends, it is called folding.
Hope this helps :)
Which is a solution to the equation? (x −2)(x 5) = 18 x = −10 x = −7 x = −4 x = −2.
(x−2) (x⋅5) = 18 = x=5 + √1155,5 − √1155
x=−7==−7 : x=−4==−4 : x=−2==−2
Answer:
d
Explanation:
What is the apparent bond energy of a carbon–sulfur bond in cos? use the bond energies below.
Answer:
carbon
Explanation:
yes
The word halcyon comes from a greek legend brainly.
Greek Mythology is simply described as different kinds of stories about the gods, goddesses, etc., of Ancient Greeks. The word halcyon originate from a Greek legend is described below;
The word halcyon is known to have its origin from a story that was written in Greek mythology. The story was all about the halcyon bird, who is empowered to calm the rough ocean waves every December because she want to lay in her nest.As a result of the calmness of the waters, halcyon therefore means having a sense of peace or tranquility.
Conclusively, In Greek mythology, there is a goddess Halcyon who is also called Alcyone in Greek. She is known as the daughter of Aeolus, the ruler of the winds.
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Look at the graph. A graph titled Yearly Average, Dow Jones Industrial Average. The x axis shows the years 1919 to 1929. The y axis shows the yearly average closing price, from 0 to 350. In 1919, it was at 100 and stayed relatively stable until 1925, when it began to rise dramatically, from 125 in 1925 to over 300 in 1929. During what years did consumerism cause the stock market to grow most? 1920–1921 1921–1924 1922–1925 1924–1929.
Answer It's D (1924 - 1929)
hope this helps :)
Explanation: edge 2023