Answer:Missy's kinetic energy just before hitting the bucket of water is given by
where m is Missy's mass and v her speed. Since we know the value of the kinetic energy, K=15000 J and the mass, m=50 kg, we can find Missy's speed before hitting the water bucket:
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Explanation:
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Which term refers to president kennedy's programs for civil rights, women's rights, and aid to the poor?
A population has a mean of 84 and a standard deviation of 12. A sample of 36 observations will be taken. The probability that the sample mean will be between 80. 54 and 88. 9 is
Answer:
0.00000046997
Explanation:
→ Set up normal distribution without sample size
x ∼ N ( 12 , 84² )[tex]x[/tex]
→ Set up normal distribution with sample size
[tex]x\alpha N(12,\frac{84^{2} }{36})[/tex]
→ State probability to find
p ( 80.54 < x < 88.9 )
→ Use calculator to find the values
Lower = 80.54, Upper = 88.9, σ = √84² ÷ 36 and μ = 12
According to the article how are true friends identified
Answer:
True friends can also be your best friends they are identified by being there for you and tell ya every thang
Calculate the volume occupied by 2.59 mol of helium gas at a pressure of 0.826 atm and a temperature of 356 k.
The volume occupied by the given mol of helium gas at the given temperature and pressure is 91.6L.
Given the data in the question;
Amount of helium; [tex]n = 2.59mol[/tex]Pressure; [tex]P = 0.826atm[/tex]Temperature; [tex]T = 356K[/tex]Volume of helium; [tex]V = \ ?[/tex]
Ideal Gas LawThe Ideal gas law or general gas equation emphasizes on the state or behavior of a hypothetical ideal gas. It states that pressure multiplied by volume is equal to moles multiply by the universal gas constant multiply by temperature. It is expressed;
[tex]PV = nRT[/tex]
Where P is pressure, V is volume, n is the amount of substance, T is temperature and R is the ideal gas constant ( [tex]R = 0.08206Latm/molK[/tex] )
To determine the volume occupied by the helium gas, we substitute our values into the expression above.
[tex]PV = nRT\\\\V = \frac{nRT}{P} \\\\V = \frac{2.59mol\ *\ 0.08206Latm/molK\ *\ 356K}{0.826atm} \\\\V = \frac{75.6626L}{0.826}\\ \\V = 91.6L[/tex]
Therefore, the volume occupied by the given mol of helium gas at the given temperature and pressure is 91.6L.
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A researcher wants to know the typing speed of the students of a large vocational school. The population standard deviation is previously known to be 2. 3 minutes. If the researcher wants a margin of error of 0. 50 minute and alpha level of 0. 05, what should be the sample size
The required sample size of the research is gotten to be; 324 students.
What is the Sample Size?We are given;
Population standard deviation; σ = 2.3 minutes
Margin of error; E = 0.5 minutes
Significance level; α = 0.05
Since margin of error is 0.5, then we have a standard deviation of;
S = 2.3 - 0.5 = 1.8
Significance level is 0.05. Thus;
0.05 * 1.8 = 0.09
Now, this question has an earlier part whereby the data was from 1000 students. Thus;
The sample size is;
n = 0.09 * (1.8 * 2) * 100
n = 324 students
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Which monomials are perfect squares? select three options
Answer:
what are the options
Explanation:
what are the options
When the coffee is brewed according to directions, a pound of coffee beans yields 50 cups of coffee (4cups = 1 qt). how many liters of coffee can be obtained per kilogram of coffee beans?
The number of liters of coffee that can be obtained per kilogram of coffee beans is; 5277.78 liters of coffee per kg of coffee beans
How to convert units?We are told that 1 pound of coffee yields 50 cups of coffee.
So we need to find the pounds of coffee beans required to produce 250 cups
Let's say we want to find the kg of coffee required to produce 200 cups of coffee. Then it is;
1 pound/50 cups * 4/4
= 4 pound/200 cups * kg/2.205 pound
= 0.009 kg/200 cups
Therefore 0.009 kilogram is used to produce 200 cups of coffee
Thus;
number of cups per kg = 200/0.009 cups per kg
Since 4 cups = 1 qt = 0.95 L
Then; 200/0.009 cups = ((200/0.009) * 0.95)/4
⇒ 5277.78 liters of coffee per kg of coffee beans
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What was one of the tests that lavoisier performed to prove the law of conservation of mass?
Answer:
Lavoisier carefully checked that the mass of reacted water (the mass loss of the retort subtracted from the mass increase of the collecting bottle) equaled the total mass of hydrogen collected in the bell jar and oxygen calculated from iron weight increase.
Explanation:
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This graph shows changes in gdp and the unemployment rate in the united states in recent years. A graph titled annual change in u s unemployment and g d p from 2005 to 2012 has year on the x-axis and percent of change on the y-axis, from negative 4 to 4 in increments of 2. Between 2008 and 2009 the g d p decreased by about 3 percent. Between 2008 and 2009, the unemployment rate increased about 1. 5 percent. The unemployment rate was highest in 2009. In what year would someone looking for work have had the hardest time finding a job? 2008 2009 2011 2012
Someone who is looking for work would have had the hardest time finding a job in 2009.
What is GDP?GDP is an acronym for Gross Domestic Products and it can be defined as a measure of the total market value of all finished products (goods) and services that are manufactured within a country during a specific period of time.
This ultimately implies that, Gross Domestic Products (GDP) is a measure of the total income of all the individuals living in a country (economy) and the total expenses incurred on the economy's output of products (goods) and services in a particular country.
Based on the graph in the image attached below, someone who is seeking for employment (work) would have had the hardest time finding a job in USA in 2009 because unemployment was at its peak.
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Answer:
B: GDP and unemployment have little to do with each other.
Explanation:
What is the length of line segment mn? 4 units 6 units 18 units 24 units
A line segment is regarded as a portion of a line that has two endpoints. The length of line segment MN is 18 units.
What are line segments?A line is known to be kind of uni-dimensional shape that is said to range from both directions that is said to never ends. A line segment is said to be a portion of the line and it is said to be the smallest distance between the two points that are said to be measured.
Note that if 2 chords intersect in a circle, what is gotten of their segments are said to be equal.
Therefore 9 * (x +1) = 15 * (x -1)
9x +9 = 15x -15
24 = 6x
x = 4
Therefore:
Line AD = 9 + x + 1
Line AD = 14
Line MN = 15 + x -1
Line MN = 18
So the correct option is 18 units.
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Answer:
18
Explanation:
Four bricks of length l, identical and uniform, are stacked on top of one another (the figure) in such a way that part of each extends beyond the one beneath. Find, in terms of l, the maximum values of (a) a1, (b) a2, (c) a3, (d) a4, and (e) h, such that the stack is in equilibrium
The maximum values of a₁, a₂, a₃, a₄ and h to make the stack in equilibrium are; a₁_max = L/2; a₂_max = L/4; a₃_max = - L/6; a₄_max = -L/8; h = 25L/24
What is the maximum width?The system is in equilibrium and length of each brick = L
a) For brick 1;
Due to the fact that the center of gravity lies to the right of L/2,
Then we can say that the maximum value of a₁ = L/2
b) For brick 2;
Since the center of gravity lies to the right of L/2, then we can say that;
The maximum value of a₂ = ¹/₂a₁_max
Thus, the maximum value of a₂ = L/4
c) For brick 3;
Taking the moment of force, the maximum value of a₃ is;
a₃_max = [(-¹/₂mL) + 2m(0)]/(2m +m)
a₃_max = - L/6
d) For the brick 4;
Taking the moment of force, the maximum value of a₄ is;
a₄ = [3(0) m + m(-L/2)]/(3m + m)
a₄_max = -L/8
e) The value of h = |a1| + |a2| +|a3| + |a4|
h = L/2 + L/4 + L/6 + L/8
h = ((12 + 6 + 4 + 3)/24)L
h = 25L/24
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Damian is paid $1,980 monthly. what is his annual salary?
Answer:
23,760 i think
Explanation:
I mean just multiply 1,890 * 12 and you get 23,760. let me know if its wrong i can correct it. hope this helps :3
True or false. One of the eggs has a miniature ship inside. True false
The excerpt on Jake and Summer in the armory museum shows that it is true that one of the eggs has a miniature ship inside.
What is an excerpt?An excerpt is a short piece that is being extracted from a film or writing for the purpose of providing key documentation and to help us locate the information we are looking for.
From the excerpt on Jake and Summer in the armory museum;
Jake and summer walk through the front door into the armory museum and when they find the Faberge eggs;
It is true that one of the eggs has a miniature ship inside.
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Answer:
true
Explanation:
Which factor has brought peace and stability to many southern african countries?
Answer:
Because of Democratic government !
Explanation:
Hope its helps you ! :)Dani sells roses in a competitive market where the price of a rose is $8. Use this information to fill out the revenue columns in the table below
Filling the total revenue, average revenue, and marginal revenue table for Dani is as follows:
Quantity Total revenue ($) Average revenue Marginal revenue
of roses
1 $8.00 $8.00 $8.00
2 $16.00 $8.00 $8.00
3 $24.00 $8.00 $8.00
4 $32.00 $8.00 $8.00
5 $40.00 $8.00 $8.00
How to calculate the different revenues?Total revenue = Quantity x Sales PriceAverage revenue = Total revenue/QuantityMarginal revenue = Difference between Initial Revenue and Current RevenueData and Calculations:Quantity Total revenue ($) Average revenue Marginal revenue
of roses
1
2
3
4
5
Price per rose = $8
Thus, when Dani sells 5 units of roses, he will get a total revenue of $40, though the marginal and average revenues remain at $8, respectively.
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A food worker needs to thaw a package of chicken wings
Answer:
When the frozen chicken is thawed, it should be placed in the refrigerator. The frosted chicken should be placed in a zip-lock bag
The frozen chicken is thawed, it needs to be kept in a refrigerator and the frosted chicken should be placed into a ziplock bag.
What does defrost means ?The deforst or thaw is a piece of snow or ice that is used by the food worker for making and keeping the food items intact and for this they need to be kept in a refrigerator for some time so that they can be processed and hence are stored at certain temperatures. Thus later on moved into a zip bag.
Find out more information out the thaw.
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A father and his son are celebrating the father’s 75th birthday. drink for drink, who will most likely have a higher bac? the father the son their bacs will be equal whose bac will be higher cannot be predicted
The person who is most likely have a higher bac is the father.
What BAC means?The term is Blood Alcohol Concentration. BAC is known to be the percent of alcohol that can be found in an individual bloodstream. A
The ability to metabolize alcohol declines in younger people. Even if two people drink the same amount of alcohol, older people tends to have higher blood alcohol concentrations than younger people due to the some alterations and as such have lower volume of total body water and thus reduce the rates of removal of alcohol from the body.
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Which one of these might appear in an evalution of a poem
How many outer-shell d electrons are there in each of the transition-metal ions?
Answer:
Mn(IV): 3 outer-shell d electrons
Co(III): 6 outer-shell d electrons
Fe(II): 6 outer-shell d electrons
Ni(II): 8 outer-shell d electrons
Explanation:
Mn(IV):
The ion is Mn⁴⁺, so it has lost 4 valence electrons. The ground state electronic configuration of Mn is [Ar]3d ⁵ 4s ². When the neutral atom loses 4 electrons, the electronic configuration is [Ar]3d ³.
outer-shell d electrons = 3
Co(III):
The ion is Co³⁺, so it has lost 3 valence electrons. The ground state electronic configuration of Co is [Ar]3d ⁷4s ². When the neutral atom loses 3 electrons, the electronic configuration is [Ar]3d ⁶.
outer-shell d electrons = 6
Fe(II):
The ion is Fe²⁺, so it has lost 2 valence electrons. The ground state electronic configuration of Fe is [Ar]3d ⁶4s ². When the neutral atom loses 2 electrons, the electronic configuration is [Ar]3d ⁶.
outer-shell d electrons = 6
Ni(II):
The ion is Ni²⁺, so it has lost 2 valence electrons. The ground state electronic configuration of Ni is [Ar]3d ⁸4s ². When the neutral atom loses 2 electrons, the electronic configuration is [Ar]3d ⁸.
outer-shell d electrons = 8
The writer is considering adding the following sentence after sentence 14 to strengthen the case that basic income should be more widely accepted. some news outlets suggest that since the trend is growing, it is only a matter of time before bi becomes a reality. should the writer add this sentence after sentence 14 ?
The writer should not add this sentence after sentence 14 because the absence of specific sources or statements from those sources makes the claim of the sentence seems unsupported.
What does strengthening implies?The term strengthen connote to make a thing or an action to be stronger.
Note that the sentence above will not fit into sentence 14 because the absence of specific sources or statements from those sources makes the claim of the sentence seems unsupported.
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Hot pizza hurts the tongue conduction convection or radiation
Answer:
convection is the correct one
Max (mass = 15 kg) is hanging from one end of a 13-m long bungee cord that has its other end fixed to a bridge above. The bungee cord has a circular cross section with a diameter of 2. 5 cm, and a young’s modulus of 17 mpa. What is the stress in the bungee cord due to max’s weight?
The stress experimented by the bungee cord due to Max's weight is approximately 299.680 kilopascals.
How to find the stress experimented by the bungee cord
Let suppose that the stress ([tex]\sigma[/tex]), in pascals, experimented by the bungee cord is entirely elastic and uniform. By Newton's Laws we know that the tension ([tex]T[/tex]), in newtons, experimented by the cord equals Max's weight. The stress on the bungee cord is axial and is described by following formula:
[tex]\sigma = \frac{m\cdot g}{\frac{\pi\cdot D^{2}}{4} }[/tex] (1)
Where:
[tex]m[/tex] - Max's mass, in kilograms[tex]g[/tex] - Gravitational acceleration, in meters per square second[tex]D[/tex] - Diameter of the circular cross section, in metersIf we know that [tex]m = 15\,kg[/tex], [tex]g = 9.807\,\frac{m}{s^{2}}[/tex] and [tex]D = 0.025\,m[/tex], then the stress experimented by the bungee cord is:
[tex]\sigma = \frac{(15\,kg)\cdot \left(9.807\,\frac{m}{s^{2}} \right)}{\frac{\pi}{4}\cdot (0.025\,m)^{2} }[/tex]
[tex]\sigma \approx 299679.845\,Pa\, (299.680\,kPa)[/tex]
The stress experimented by the bungee cord due to Max's weight is approximately 299.680 kilopascals. [tex]\blacksquare[/tex]
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If a particle has a speed of r feet per second and travels a distance d (in feet) in time t (in seconds), then d
The expression of distance from the given parameters is; d = r * t
What is the formula for distance?The formula to calculate distance is physics is;
Distance = speed * time
Now, we are given;
speed = r ft/s
distance = d ft
time = t seconds
Thus, our formula for distance will now be expressed as;
d = r * t
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peripheral used in a sentence
Answer:
They hadn't traveled far down the trail before she got a peripheral view of the building.
Explanation:
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Find the volume of the triangular pyramid to the nearest whole number. a) 72 units3 b) 96 units3 c) 144 units3 d) 288 units3
Answer:
the answer is 96 units
Explanation:
i just took the test
Which refers to facts, quotations, examples, anecdotes, and statistics?
A word that refers to facts, quotations, examples, anecdotes, and statistics is evidence.
What is an evidence?An evidence can be defined as a body of factual information that comprises quotations, examples, anecdotes, and statistics, which are used to show or prove that something is credible, truthful, reliable, and verified.
This ultimately implies that, an evidence is any word in English language or law that refers to facts, quotations, examples, anecdotes, and statistics.
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Big ideas math: course 3 (california edition) answers
Answer:A conditional statement, symbolized by p → q, can be written as an “if-then
statement” in which p is the hypothesis and q is the conclusion. Here is an example.
hypothesis, conclusion,
If a polygon is a triangle, then the sum of its angle measures is 180 .
p q
°
Explanation:
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How can we adopt good habits?
Answer:
Good Habits aren't made in one day and require a lot of effort especially if you have to break out of bad habits. Always start small and build a foundation on which larger changes can rest.
What is the measure of angle x? enter your answer in the box
Answer:
the measure of angle x is 48
Explanation:
Since we know the measurement of a straight line = 180 degrees, we can subtract 90 and 42 from 180. The answer is 48 degrees.
Which of the following observations would provide the strongest evidence that two plants belong to different biological species?
Answer:They produce viable but sterile offspring.
Explanation: