Based on the standard formula and data in the question, the frequency of a sound source that produces the same wavelength in 20∘c air is "115.87Hz."
What is the frequency of a sound source?The frequency of a sound source is the quantity of waves that move through a point per unit of time.
Typically, a sound wave arises from a source vibrating at a frequency f, propagates at v, and has a wavelength λ.
Therefore, in this case, we have
Velocity (v) of sound in air = 343 m/s
Wavelength (λ) = 2.96 m
Frequency (f) =?
f = v ÷ λ
f = 3.43m/s ÷ 2.96m
=> 115.87Hz
Hence, in this case, it is concluded that the correct answer is 115.87Hz.
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Matthew has a jar of 368 nickels and dimes he has been collecting. The total value of the coins is $28. 40. Which system of linear equations and solution can be used to represent the number of nickels and dimes matthew has in his collection?.
Answer:200 nickels and 168 dimes
Explanation:N+d=368
How many integers between 500 and 1000 contain both the digits 3 and 4.
Any number between 500 and 1000 that contains both 3 and 4 must be of the form x34 or x43, where x is an one of {5, 6, 7, 8, 9}. There are 2 possible forms for each of the 5 choices for x, so there are 2 × 5 = 10 such integers.
Which best describes how the human circulatory and respiratory systems interact.
Answer:
The respiratory system provides oxygen for cells, while the circulatory system transports oxygen to cells. C. The respiratory system breaks down food for cell energy, while the circulatory system rids the body of waste.
Which change will decrease the electric force between two positively charged objects?.
Maximize the objective function p = 5x + 3y for the given constraints. X ≥ 0 y ≥ 0 3x + 6y ≤ 48 2x + 8y ≤ 56.
The maximized value of the objective function is 38
The objective function is given as:
Max P = 5x + 3y
The constraints are given as:
3x + 6y ≤ 48 2x + 8y ≤ 56x ≥ 0 y ≥ 0To do this, we make use of the graphical method.
See attachment for the graph of the constraints.
From the graph, we have the following feasible point
[tex](x,y) = (4,6)[/tex]
Substitute 4 for x and 6 for y in the objective function.
[tex]Max\ P = 5x + 3y[/tex]
So, we have:
[tex]P = 5 \times 4 + 3 \times 6[/tex]
[tex]P = 20 + 18[/tex]
[tex]P = 38[/tex]
Hence, the maximized value of the objective function is 38
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Answer:
Explanation:
If an objective function has a maximum value, it will occur at one of the vertices of the feasible region (i.e., the solution region for the system of inequalities). The feasible region's vertices occur at (0, 0), (0, 7), (4, 6), and (16, 0).
Use the x- and y-value from each vertex to evaluate the objective function P = 5x + 3y.
(x, y) 5x + 3y P
(0, 0) 5(0) + 3(0) 0
(0, 7) 5(0) + 3(7) 21
(4, 6) 5(4) + 3(6) 38
(16, 0) 5(16) + 3(0) 80
Therefore, the maximum of the objective function is 80.
Throwing a snowball during a snow ball fight is most like an example of.
Answer:
Accumulation
Choices should be:
Weather, erosion, deposition, and acumulation
Explanation:
This is because the snow had to accumulate enough in order to make a snowball.
-Lexi
1.Jun _______ France for 4 months.
A. have learnt
B. learnt
C. learns
D. has learnt
Answer:
has learnt
Explanation:
i think France is supposed to be French
In colonial america who were the sons of liberty brainly.
A spring with a spring constant of 150 n/m has an equilibrium length of 8. 0 cm. What is the change in spring potential energy when the spring is stretched from a length of 11. 0 cm to 14. 0 cm?.
When the spring is stretched to 11.0 cm - 8.0 cm = 3.0 cm = 0.030 m away from equilibrium, it stores
1/2 (150 N/m) (0.030 m)² = 0.0675 J
of potential energy, while stretching it to 14.0 cm - 8.0 cm = 6.0 cm = 0.060 m from equilibrium stores
1/2 (150 N/m) (0.060 m)² = 0.27 J
Then the change in potential energy is 0.27 J - 0.0675 J = 0.2025 J ≈ 0.21 J
You have set a closing date with a password. Can your client make changes and if so, how would you track any changes to transactions within the closed period?.
Based on the information given, the correct option will be C. Yes, but only if they know the password. Changes are flagged in an Exceptions to Closing Date report.
From the complete information, it was stated that the user has set a closing date with a password. It should be noted that changes can still be made by the client.
It should be noted that admins and master admins can edit the transactions even after the closure of the book.
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How does douglass appeal to the audience’s sense of logic in the excerpt? by using his own personal experiences to gain their trust by recounting emotional events to evoke sadness by explaining the reasoning behind his argument by describing how he plans to effect change in the us.
Answer:
Explanation:
need help
Answer:
B. by recounting emotional events to evoke sadness
Explanation: I got it right
What is the name of the computer program used for file and process management in the linux system?.
Answer: Command Prompt
Explanation:
Which applicants would be best suited for which jobs based on educational and training?.
Mona is best suited for the job which is Stationary Engineer Because She have experience as a Pump operator, she is best suited for system operator and also power distributor.
All these are the works of a Stationary Engineer.
Who is a Stationary Engineer?A Stationary Engineer is a person who is trained to operate, repair and maintain Boiler, pumps and heat pumps.
Therefore,Mona is best suited for the job which is Stationary Engineer Because She posses relevant skills and experience as Pump operator, system operator and also power distributor.
The question is incomplete but the options was gotten from brainly website.
Here are the options.
Boris is best suited to be an Electrician, Jody is best suited to be a Hydroelectric Production Manager, Mona is best suited to be a Power Dispatcher, and Boyd is best suited to be a Pipefitter. Boris is best suited to be a Petroleum Engineer, Jody is best suited to be a Meter Reader, Mona is best suited to be a Pump Operator, and Boyd is best suited to be a Stationary Engineer. Boris is best suited to be a Surveyor, Jody is best suited to be an Electrical Power-Line Installer, Mona is best suited to be a Systems Operator, and Boyd is best suited to be a Boiler Operator. Boris is best suited to be a Power Distributor, Jody is best suited to be a Petroleum Engineer, Mona is best suited to be a Power Distributor, and Boyd is best suited to be a Geothermal Technician.
There is no verified link for verified answer on Stationary Engineer on brainly.
Answer:
Im gonna say A
Im very very sorry if Im incorrect
anyway
AVOCADOS FROM MEXICO
Explanation:
Boyle’s law states that if the temperature of an ideal gas is held constant, then the pressure p of the gas and its volume v satisfy the relationship p=kv, where k is a constant. Which of the following best describes the relationship between the rate of change, with respect to time t, of the pressure and the rate of change, with respect to time t, of the volume?.
The best answer that describes the relationship between the rate of change with respect to time of the pressure and the rate of change with respect to time t of the volume is; dP/dt = (-k/V²)(dV/dt)
We are given;
p = k/v
Thus if we cross multiply, we will get;
PV = k
Where;
P is pressure
V is volume
k is a constant
Using the product rule of differentiation on both sides with respect to time t gives;V(dP/dt) + P(dV/dt) = 0
This is because k is a constant.
Putting k/v for P gives;
V(dP/dt) + (k/V)(dV/dt) = 0
>> V(dP/dt) = - (k/V)(dV/dt)
Divide both sides by V by division property of equality to get;
dP/dt = (-k/V²)(dV/dt)
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Aiden is aware of the causes of type 2 diabetes. What can he do to help decrease his likelihood of developing the disease? drink more coffee read more books eat more vegetables play more board games.
Answer:
eat more veggies
Explanation:
Which graph represents a reflection of f(x) = 6(0. 5)x across the x-axis?.
Answer: f(x)=6(0.5)^x
Which of the following is not a type of association.
Answer:
please be more specific with your question it has a picture
A piece of equipment costs $30,000, and is expected to generate $8,500 of annual cash revenues and $1,500 of annual cash expenses. The disposal value at the end of the estimated 10-year life is $3,000. Ignoring income taxes, the payback period is:.
Answer:
C. 4.29 years
Explanation:
The computation of the payback period is shown below:
Payback period = Initial investment of the equipment ÷ Cash flows
where,
Initial investment = $30,000
And, the cash flows is
= $8,500 - $1,500
= $7,000
So the payback period is
= $30,000 ÷ $7,000
= 4.29 years
By dividing the initial investment by the cash flows we can get the payback period and the same is applied above.
please mark me brainliest!!
Which premise would best fit in a work of dystopian fiction.
Answer:
The answer is most likely C, can a robot dominated government run a human society. The assumption here is that robots already have dominated human kind.
thank you
An air conditioning manufacturer produces room air.
Answer:
sup
Explanation:
if I give you points and you give me no points how many points do you have?
Then the person you gave points to would have however many you gave them. You would subtract from what you have and add that amount to the other person's, you'd need to add context for this question to actually get help
Explanation: You would have no points and I would have however many points you gave me.
If a recessive allele helps an organism reproduce but a dominant allele hinders reproduction, which will become more prominent over time?.
It is expected the recessive allele becomes more prominent over time.
In general, nature favors traits that help organisms survive and reproduce. This occurs through a process known as natural selection that helps the population to evolve to have favorable traits.
This evolution occurs externally as organisms change their physical traits or phenotype, but also at a genetic level.
This implies that even if a trait is genetically dominant if the trait does not favor survival and reproduction, this trait will slowly disappear or reduce over generations.
Based on this, the recessive allele will become more prominent because this trait favors reproduction, while the dominant allele will become less prominent.
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Which theme is explored in the selection from the boston girl?.
The power of encouragement.
Explanation:
* By Anita Diamant, "The Boston Girl" is narrated in first-person a girl, Addie.
* Addie feels empowered after Miss Chevalier encourages her by emphasizing her qualities.
* Miss Chevalier takes care of a settlement house in a poor neighborhood, helping families of immigrants.
* She notices that Addie is a good reader and asks her to memorize a poem for a recital.
* She also teaches Addie the importance of knowing the meaning of words and knowing what words apply to oneself.
* For instance, she teaches Addie that she is a girl with "gumption".
*Addie feels seen, strong, and capable
because of Miss Chevalier.
Which statement describes a gothic element in this excerpt that reflects a social attitude of wharton’s time? the narrator feels inadequate when she reports seeing a supernatural being and nobody believes her. The narrator feels like she lacks control of her own fate when her superiors refuse to answer her questions. The narrator is dismissed by her superiors when she asks questions about an occurrence that may have been supernatural. The narrator fears that she may be doomed when she witnesses a strange woman walking around the home.
The statement that describes a gothic element in this excerpt is C. The narrator is dismissed by her superiors when she asks questions about an occurrence that may have been supernatural.
Gothic elements were popular in the 18th century. Some of their characteristics include haunted homes, powerful love, romance, supernatural beings, etc.
The gothic element that can be seen in the excerpt is when the narrator is dismissed by her superiors when she asks questions about an occurrence that may have been supernatural.
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Answer:
It's C
Explanation: Edge
One of your authors once attended a training session where the instructor shared that they did not believe in the dsm or in using diagnoses. This person believed that diagnoses were much like rumors, that they had the potential to lead toward specific beliefs and assumptions about a person. And like rumors, they may also lead to negative biases. Rumors aside, what are some ways that psychological diagnoses may inadvertently lead to prejudice? in extreme cases, how might they lead to discrimination? are there any specific diagnoses that may be more prone to negative biases, particularly by those not familiar with psychology?.
Based on the information given, the biggest disadvantage of assigning a diagnosis is that it can be stigmatizing and bring about a negative bias for the client.
For the patient, it should be noted that facing prejudicial attitudes or biases can lead to shame and lowered self-esteem.
A typical stereotype that is associated with those with mental illness is that they're irresponsible and unreliable. Among all the mental illnesses, schizophrenia is most negatively perceived in my view. Such people having it may be more prone to negative biases.
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What is the approximate length of arc s on the circle below? use 3. 14 for pi. Round your answer to the nearest tenth.
True/false: bolsa thinks they should go to the zoo. True false.
Answer:
True
Explanation:
The given statement is true that bolsa thinks they should go to the zoo, from the story Sancho and Bolsa.
Who is Bolsa in the story?Bolsa was a cartel founding member and close ally of Don Eladio and Hector Salamanca. His brother is the chief of police. He is a high-ranking member of The Cartel, having co-founded it with his boss Don Eladio and Hector Salamanca.
Juan Bolsa is a high-ranking member and co-founder of the Salamanca Cartel, which includes the Salamanca family and Gustavo Fring.
He also worked for a time with drug lord Gustavo Fring before the latter betrayed him and had him killed. Juan Bolsa, a Cartel major lieutenant, hired them to steal Lalo Salamanca's bail money, which totalled $7 million.
Therefore, the given statement is true, that the bolsa believes they should go to the zoo.
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#SPJ5
Is this statement true or false?Gas giants all have a cold atmosphere and a hot core.
Which 4 statements regarding the chart of accounts are true?.
The statements that are true regarding the charts of accounts are:
They organize finances.Offer finances to investors/shareholders.They give clearer insight to financial health.Help financial statement by separating expenditures, revenues, assets and liabilities.Charts of accountCharts of account is an index of all financial records in the general ledger of a company. It is a tool that provides a dissolvable breakdown of all financial transactions of a company during a specific period.
AccountAn account is a report or description. It can be defined as keeping records of an financial transactions related to an individual or entity.
Please note that this question is incomplete, so the answer was given to help.
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Write a function named test_sqrt that prints a table like the following using a while loop, where "diff" is the absolute value of the difference between my_sqrt(a) and math. Sqrt(a).
The function illustrated the use and the application of the while loops
While loops are used to perform iterative operations
The test_sqrt function in Python is as follows:
#This imports the math module
import math
#This defines the test_sqrt function
def test_sqrt():
#This initializes variable a to 1
a = 1
#The following is iterated for the values of variable a from 1 to 25
while a<=25
#This prints the required output
print('a =', a,'| my_sqrt(a) =',my_sqrt(a),'| math.sqrt(a) =', math.sqrt(a),'| diff =', abs(math.sqrt(a)-my_sqrt(a)))
#This increments a by 1
a = a + 1
Note that:
Comments are used to explain each line in the above function
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