How long does it take a 1.51 × 104 W steam engine to do 8.72 × 106 J of work? Round your answer to three significant figures. 1.02 × 101 s 5.77 × 102 s 7.21 × 105 s 1.32 × 1011 s
Answers
Answer:
5.89seconds
Explanation:
power is workdone over time, time is therefore workdone over power
(8.72*106)/(1.51*104)
=5.885
~5.89 seconds
Answer:
5.77 x 10^2 s
Explanation:
I got it right on edge
Related Questions
which is the best paraphrase of the first stanza of the olympic swimmer
Answers
Poems are very common in the world today. They are often used to voice out emotions. The best paraphrase of the first stanza of "The Olympic Swimmer"?
Athletes from across the globe train to compete in the Olympics, but only one can win.
Poetry often makes use of language in another dimension. It is known to use language or language tout court, prose etc
Poetry are often regarded as fashionable thought to have pertains to ritual in ancient agricultural societies.
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The complete poem is below
THE OLYMPIC SWIMMER
Who will be the winner bold?
Athletes from both far and near
Train and Strain to be the best.
But who will win the medal gold?
Swimmers swivel, splash, and kick
Back and forth in a clear, blue pool;
Like fish at play in Neptune’s sea.
Swimming relaxed, and calm, and free.
These stars like sharks cut the waves –
Their fin-like feet flap behind
Traverse the lane in record time.
Their performances are so sublime!
Arms reach out for more and more;
Mouths gulp air for burning lungs.
Hard, sure kicks surging to the fore
Like surfboards riding waves to shore.
Strong of body, heart, and mind,
The victors celebrate their feats.
Happiness now lights up a face;
why life is hell and love is a lie
Answers
Answer:
life is hell and love is a lie
Explanation:
• Define temperature as a measure of the average kinetic energy of the particles of a substance.
The answer is that the kinetic energy moves faster and then sometimes collide with each other spreading the kinetic energy
Answers
The temperature of a substance is calculated as the average kinetic energy of all of its atoms or molecules. A substance's particles do not all have the same kinetic energy.
What is kinetic energy?Kinetic energy is the energy that an object has as a result of its movement. If we want to speed up an object, we must apply force to it. Using force requires us to put in effort.
After work is completed, energy is transferred to the object, and the object moves at a new constant speed.
The average kinetic energy of all of a substance's atoms or molecules is used to calculate its temperature. The particles of a substance do not all have the same kinetic energy.
Thus, it can be concluded that temperature is a measure of the average kinetic energy of the particles of a substance.
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18. Two functions are defined as f(x)=2x-1 and
g(x)=x² +1. Which of the following expressions
represents f(g(x)) ?
Answers
Answer:
The expression f(g(x)) would represent applying the function g to the input x, and then applying the function f to the result of g(x). Mathematically, this can be written as f(g(x)) = f(x^2 + 1) = 2(x^2 + 1) - 1.
Answer:
The expression f(g(x)) would represent applying the function g to the input x, and then applying the function f to the result of g(x). Mathematically, this can be written as f(g(x)) = f(x^2 + 1) = 2(x^2 + 1) - 1.
20ax - x= 5 in the equation above, a is a constant if the equation has no solution, what is the value of a ?
Answers
20ax - x = 5
x(20a - 1) = 5
For this equation to have no solution, the left side of the equation must be equal to 0 (since any number multiplied by 0 is 0). Therefore, we can set the expression inside the parentheses equal to 0 and solve for a:
20a - 1 = 0
20a = 1
a = 1/20
So if the equation 20ax - x = 5 has no solution, then the value of a is 1/20.
I have like a thousand points and i never use them so im giving some away but you have to tell me about your favorite food and why hehe happy bday to youuu tehehe
Answers
Answer:
my fav food is pizza because there is soo many ways you can make it and its delecious
Explanation:
Answer:
My favorite food is pasta. Thanks for point lol
The lane markings in this image indicate that _____
A. Both cars are approaching a passing zone
B. Both cars are leaving a no passing zone.
C. It is legal to pass in either direction
D.both cars are currently in a passing zone
Answers
Answer:
D
Explanation:
Both cars have a yellow dashed line, which means that cars can currently use the other lane.
Based on the fossils found in each layer, what changes do you think happened in the area before the ash flow that formed the fossils beds
Answers
The study of fossils in different layers can provide insights into the changes that occurred in an area over time, allowing scientists to piece together a picture of the area's history.
How to explain the fossilBy studying the fossils found in each layer, scientists can learn about the types of organisms that lived in the area at different times in the past.
They can also learn about the conditions that existed in the area, such as climate, water levels, and other environmental factors. Based on this information, scientists can make inferences about the changes that occurred in the area over time.
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A light source is shining on a vertical surface or a slanted surface as shown 3 points
below. Which statement is correct?
Surface is vertical
Surface is tilted
The light energy that hits the vertical surface is stronger because it is concentrated on
a smaller area.
The light energy that hits the vertical surface is weaker because it is concentrated on
a smaller area.
The light energy that hits the slanted surface is stronger because it is concentrated on
a larger area.
The light energy that hits the slanted surface is stronger because it is concentrated on
a smaller area
Answers
Answer:
The light energy that hits the vertical surface is stronger because it is concentrated on a smaller area.
Explanation:
Which of the following best describes an active volcano?
A. An active volcano has a record of eruption within the last 600 years or has erupted 10,000 years ago based on analyses of its materials
B. An active volcano has erupted 20,000 years ago and has evidences of volcanic activities.
C. An active volcano has no record of eruption but has the potential to erupt.
D. An active volcano has no record of eruption for the last 600 years.
Answers
An active volcano has a record of eruption within the last 600 years or has erupted 10,000 years ago based on analyses of its materials
The International Association of Volcanology or (IAVCEI) defines a potentially active volcano as one that has erupted during the past 10,000 years
y = x^2 - 5x + 3
5x + y = 39
Which of the following is the x-value of a solution to
the system of equations above?
A) 6
B) 12
C) 18
D) 36
Answers
Answer:
x = 6 (A)
Explanation:
We plug y = x^2 - 5x + 3 into 5x + y = 39 and we have
5x + x^2 - 5x + 3 = 39
-> x^2 = 36
-> x = 6
Since 60° is of 360° then the length of is the circumference of the circle.
Answers
Since 60° is one-sixth (1/6) of 360°, then the length of the arc subtended by a central angle of 60° is one-sixth (1/6) of the circumference of the circle.
The graph of function g is shown to the left. If g(x) = a(x + 3)^2 - 5, what is the value of a?
Answers
Answer:4 times 4
Explanation: but 4^4 equals 256
Cómo podemos generar reflexión en los ciudadanos sobre las oportunidades de construir el país en el que anhelamos vivir ayudaaa por favor
Answers
To generate reflection among citizens about the opportunities to build the country in which we yearn to live, it is important that the following measures be carried out: Generate citizen awareness, Establish participatory dialogues, Promote access to relevant information and Promote citizen participation.
Generate citizen awareness: A positive citizen awareness is important for citizen reflection and good decision-making. informed. Awareness campaigns can be carried out that promote values such as democracy, respect and tolerance of diversity, among others. Establish participatory dialogues: Participatory dialogue is important so that citizens feel heard and valued, and thus can contribute with their ideas and opinions to the development of the country. This implies the creation of spaces for dialogue, discussion and deliberation of relevant and problematic issues. Promote access to relevant information: Access to relevant and timely information is important so that citizens can make informed decisions on issues that affect their lives. lives. This implies that access to accurate and up-to-date information is guaranteed through the media, social networks, libraries, among others. Promote citizen participation: Citizen participation is important for citizens to become actively involved in decision-making. decisions on issues relevant to them and to society in general.Learn more about participatory at:
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Everyone just needs to know that...
you are AMAZING
you are BEAUTIFUL
you are SMART
you are KIND
you are NOT going to give up on your FIGHT
and you better stay ALIVE <33333
Answers
Question 2(Multiple Choice Worth 5 points)
(02. 05 MC)
In 2022, a study at Get Well Pediatrics found that 20% of its patients were allergic to pet dander. The study also showed that 20% of patients who were allergic to pet
dander tested negative, while 5% of the patients who were not allergic tested positive. The relative frequency table summarizes the data.
Positive Negative Total
Allergic to Pet Dander
16%
20%
Not Allergic to Pet Dander 4%
80%
Total
20%
100%
Determine the ratio of false positives to true positives.
O
O
14
O
113
O
116
4%
76%
80%
17/1/2
0
Answers
The ratio of false positives to true positives from the table is given as follows:
1/3.
How to calculate the ratio?The ratio between two amounts a and b is calculated as the division of amount a by amount b.
The definitions of false positives and true positives for this problem are given as follows:
False positives: Positive test to the allergy, when in fact the patient is not allergic.True positives: Positive test to the allergy, when in fact the patient is allergic.From the table given by the image at the end of the answer, the percentages are given as follows:
False positives: 4%.True positives: 12%.Hence the ratio of false positives to true positives from the table is calculated as follows:
4/12 = 1/3.
Meaning that the first option is correct.
Missing InformationThe table is given by the image shown at the end of the answer.
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x-1
3
If-
A) 2
B) 4
C) 9
D) 10
F.
= k and k = 3, what is the value of x ?
Answers
The value of x is B) 4U.
What is value?
The value of a mathematical expression is the outcome of the computation described by this expression when the variables and constants in it are given values, or it can refer to the value of each digit in a number depending on where it is in the number.
The "value" of a calculation or expression is a common question in math problems. When eqa and eqb are equal to particular numbers, a math teacher might, for instance, ask for the value of eqa+b.
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Question 8 of 25
The exact same experiment was conducted 15 times. How many times
should the results have been similar for them to be valid?
A. 15
B. 9
C. 8
D. 6
Answers
To consider the results of the 15 experiments valid, they should be similar in at least 8 of the trials . So, option C is the right choice.
To determine the number of times the results should be similar for them to be considered valid, we need to establish a threshold based on the number of experiments conducted. In this case, the experiment was repeated 15 times.
To determine the minimum number of times the results should be similar for validity, we can calculate the majority. We divide the total number of trials by 2 and add 1. In this case, 15 divided by 2 equals 7.5, and adding 1 gives us 8.
Therefore, for the results to be considered valid, they should be similar in at least 8 out of the 15 trials. This threshold ensures that the majority of the experiments produced consistent results, indicating reliability and reproducibility.
Thus, The correct answer is option C.8
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What is the purpose of the SAT?
Answers
Can someone please please help me this is due in 9 minutes and I need help please.
If a student guessed on three questions on a multiple-choice exam, with each question having options A, B, C, and D, what is the probability that he or she would get them all wrong?
Answers
Answer:
it depends on how many questions are on the exam , but I would say 25 %
Explanation:
I'm not sure, because their is not enough information
create a short story about Motivation was my task i need help to find something to be the motive
Answers
Answer:
your motivation should be a life lesson
Explanation:
for example you become motivated to leave a bad relationship and people that care for you motivate you to leave
Answer:
The motive could be working hard on homework, even though the pandemic might make it hard.
Explanation:
What is a simplified form of the expression 4y – 1 – 9 – 7y?
Answers
Answer:
-3y -10 is the correct answer
Explanation:
At the Henn na - or Weird Hotel - in Japan, the staff are almost all robots. So, If you 9
rather
have a human receptionist, don't stay here
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In a democracy, the interests of the few must be elevated above the interests of the many
Answers
Answer:
False
Answers By Blueberry Reed. Copyright 2022
If you wanted too find the jet stream where would you go
Answers
Answer:i honestly don’t know
Explanation:
Answer:
i met u in califonya you said you loved him in gorgia your herat is frozen over in supernova
Explanation:
If -1 ≤ x ≤ 8 and -1 ≤ y ≤ 10, then what is the range of xy?
Answers
Answer:
Explanation:
the lower bound would be the smallest value xy could produce, which is smallest value of x times the largest value of y, -1 times 10 is -10. the upper bound would be the largest value of xy, which is the largest value of both variables, 8 times 10 is 80. hence the range of xy is -10<= xy <=80.
When are score reports for the ACT writing test released?
A. Five to eight weeks after the test date
O B. After you have called to verify your identity
C. Within two weeks of the test date
O
D. Before the main ACT score results have been released
Answers
Answer:
A: Five to eight weeks after the test date
The score reports for the ACT writing test was released on Five to eight weeks after the test date, the correct option is A.
Now,
According to the official ACT website and other sources, the score reports for the ACT writing test are released about two weeks after the multiple-choice scores are available.
The multiple-choice scores are normally available two weeks after each national test date, but it can sometimes take up to eight weeks.
Therefore, by ACT test the answer will be five to eight weeks after the test date, on average.
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The additional growth of plants in one week are recorded for plants with a sample standard deviation of inches and sample mean of inches. at the significance level = margin of error = confidence interval = [,][smaller value, larger value] ex: 1.234 ex: 1.234 ex: 12.345 ex: 12.345 1
Answers
Because it aids in comprehending measurements when the data is scattered, standard deviation is significant. The standard deviation of the data will be higher the more evenly dispersed the data is.
The term "standard deviation" (or "") refers to a measurement of the data's dispersion from the mean. A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed. The best measure of dispersion is standard deviation since it most closely resembles the ideal measure of dispersion. 1. The Standard Deviation is the main tenet of statistical theory. Comparing the variability of two or more sets of data is useful.
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At a construction site, a builder plans to cut down an 8-foot-by-9-foot piece of plywood. She plans to discard any pieces that she cuts off. She keeps an exactly 7-foot-by-6-foot area of the plywood. What is the area, in square feet, of the pieces of plywood that are discarded?
Answers
Answer:
30ft²
Explanation:
The area of the plywood that she has:
8 ⋅ 9
=72ft²
The area of the plywood she cut
7 ⋅ 6
=42ft²
The area discarded should be:
72ft² - 42ft²
= 30ft²
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aps aaaaas-pppppppppppppppppppppppp Quadrilateral VWXY is a parallelogram. Find the measure of ∠V.
Question 20 options:
A)
38°
B)
60°
C)
120°
D .52
Answers
Answer:
60°+x=180°
x=180°-60°
x=120° is your answer ☺️☺️☺️
Answer:
60°+x=180°
x=180°-60°
x=120° is your answer
Explanation60°+x=180°
x=180°-60°
x=120° is your answer: