Answer:
D. 0.8842
Explanation:
A bicycle wheel is mounted on a fixed, frictionless axle, with a light string wound around its rim. The wheel has moment of inertia i=kmr2, where m is its mass, r is its radius, and k is a dimensionless constant between zero and one. The wheel is rotating counterclockwise with angular speed ω0, when at time t=0 someone starts pulling the string with a force of magnitude f. Assume that the string does not slip on the wheel
The final rotational speed ω_final and the instantaneous power P delivered to the wheel are; ω_f = √((ω_i)² + 2(FL/(kmr²) and P = Frω_i
What is the Instantaneous Power?A) From rotational kinematics, the formula for the final angular velocity is;
ω_f = √((ω_i)² + 2αθ)
where;
α is angular acceleration
θ = L/r. Thus;
ω_f = √((ω_i)² + 2α(L/r))
Now, α = T/I
Where;
I is moment of inertia = k*m*r²
T is t o r q u e = F * r
Thus;
α = (F * r)/(kmr²)
α = F/(kmr)
ω_f = √((ω_i)² + 2(F/(kmr))(L/r))
ω_f = √((ω_i)² + 2(FL/(kmr²)
B) Formula for instantaneous power is;
P = Fv
where at t = 0; v = rω_i
Thus;
P = Frω_i
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Why is the word "sale" in a larger font than the rest of the text in this advertisement?
Answer:
to emphasize the word for shoppers
Explanation:
Which audience would this passage be most appropriate for?
What force does the absolute pressure of sea water at a depth of 9400 m exert on the outside of a circular submarine window of radius 44.0 cm? the density of sea water is 1025 kg/m^3. report your answer in newtons.
Answer:
(dagua de mar=1030 kg/m3; g = 9.8 m/s2)
Explanation:
espero te ayude
When working to persuade an audience it is important to _____________. a. ask for limited amounts of change b. never ask for change c. ask for large changes immediately d. hint at desired changes
Answer:
it is important to d. hint at desire changes :)
Explanation:
What is the molar solubility of agcl (ksp = 1.80 × 10⁻¹⁰) in 0.500 m nh₃? (kf of ag(nh₃)₂⁺ is 1.7 × 10⁷)
Based on the Ksp calculations, the molar solubility of AgCl in 0.500 M of NH₃ is equal to 2.77 × 10⁻² M.
How to determine the molar solubility.First of al, we would write the properly balanced chemical equation for this chemical reaction:
AgCl(s) ⇆ Ag⁺(aq)+ Cl⁻(aq) Ksp = 1.8 × 10⁻¹⁰
AgCl(s) + 2NH₃(aq) ⇆ Ag(NH₃)₂⁺(aq) Kf = 1. 7 × 10⁷
Given the following data:
Ksp of AgCl = 1.8 × 10⁻¹⁰Concentration of NH₃ = 0.500Kf of ag(nh₃)₂⁺ = 1.7 × 10⁷K = Ksp × Kf
K = 1. 80 × 10⁻¹⁰ × 1.7 × 10⁷
K = 3.06 × 10⁻³
Mathematically, the Ksp for the above chemical reaction is given by:
[tex]K=\frac{ [Ag(NH_3)_2^{+}][Cl]}{[NH_3]^2}\\\\3.06 \times 10^{-3}=\frac{[x][x]}{0.50^{2 }}\\\\3.06 \times 10^{-3}=\frac{x^2}{0.25}\\\\x^2 = 7.65\times 10^{-4}\\\\x=\sqrt{7.65\times 10^{-4}}[/tex]
x = 2.77 × 10⁻² M.
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One effect of the population changes that occurred nationwide from 1950 to 1990 was the
An effect of the population changes that occurred nationwide is restriction limited number of available resources.
What are Population change?Population change is known to be any kind of change that occurs in the number of people in a given place and also in a given time period.
It is known to be as a result of birth rates, death rates, etc., and in the effect of the population changes that took place nationwide from 1950 to 1990 was that a level of restriction was placed as a result of limited availability of resources.
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In his description of the united states army's plan
In the united states the official poverty rate is the percentage of residents who brainly
Poverty rate is the percentage of residents who earn a household income that is less than the threshold set by the government.
What is Poverty rate?This is defined as the ratio of people whose income fall below the poverty line in a country.
It csn also be referred to as the percentage of residents who earn a household income that is less than the threshold set by the government.
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PLEASE HELPPP!!!!!WILL GIVE BRAINLIEST AND 50 POINTS(NO LINKS PLEASE)
Buses 1, 2, and 3 make one trip each day, and they are the only ones that riders A,B,C,D,E,F, and G take to work.
Neither E nor G takes bus 1 on a day when B does
G does not take bus 2 on a day when D does.
When A and F take the same bus, it's always on bus 3
C always takes bus 3
Traveling together to work, B, C, and G could take which of the same buses on a given day?
A. 1 only
B. 2 only
C. 3 only
D. 2 and 3 only
E. 1, 2, and 3
Enter an equation showing how this buffer neutralizes added aqueous base (csoh).
Answer:
Here, the buffer is NH₄Cl + NH₃
The strong base is added to the buffer solution, then the salt reacts with the base to form a weak base and water, which does not alter the pH
NH₄Cl + CsOH → NH₃ + CsCl + H₂O
NH₄⁺ + OH⁻ → NH₃ + H₂O
When we add strong acid to the buffer solution, the base NH₃ reacts with acid and forms salt, which does not alter the pH
NH₃ + H⁺ → NH₄⁺
Explanation:
Hope I helped!
What is meant by the term amiable, as it is used in the sentence? a) friendly b) lukewarm c) rude d) surly
Given the term "amiable" as it is used in the sentence, it meant "to be friendly"
The definition of each wordAmiable: This means to be Friendly, kind, sweet and gracious.Friendly: To be henerally warm, approachable and easy to relate with in character.Lukewarm: Between warm and cool. Not enthusiastic personRude: A person who is bad mannered.Surly: A Lordly, arrogant, Irritated, bad-tempered, unfriendly person.Therefore, what is meant by the term amiable, as it is used in the sentence is "friendly".
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Identify which type of reaction the feature occurs in.
Answer:
independent reaction occurs in grana produces ATP, release oxygen and produce glucose. while light independent reactions occur in stroma, fixes carbon dioxide.Explanation: Photosynthesis is a process that converts light energy into chemical energy in a multi protein complex called a photo system. There are two types of photo systems are present in the thylakoid membrane: photo system II ( PSII) And photo system I (PSI). Each photo system captures the energy from sunlight by exciting electrons and these energized electrons are transported by “energy carrier” molecules, which power the light-independent reactions. light energy passes to two special chlorophyll a molecules in the reaction center. The light excites an electron from the chlorophyll a pair which passes to the primary electron acceptor and then replaced. In photo system II, the electron comes from the splitting of water, which releases oxygen as a waste product. In photo system I, the electron comes from the chloroplast electron transport chain.light-independent reactions also called calvin cylce do not use light takes place at day or night for functioning they require the products of the light dependent reactions. The light-independent molecules depend on the ATP and NADPH, to form new carbohydrate molecules. After energy is transferred, the energy carrier molecules return to the light dependent reactions to take more energized electrons. but several enzymes of the light-independent reactions are activated by light
Which would be most suitable for measuring 2.7 ml of ethanol for addition to a reaction with acidified dichromate?
Answer:
10 ml of graduated measuring cylinder.
Explanation:
Why because A 10 mili liter of Measuring tool is a useful measuring tool in which various kind of liquid chemicals and other preparations of the same kind are measured.
Researchers used two footballs of the same size to examine the effect of helium on kicking distance. one football was filled with air, and the other was filled with helium. eleven people participated in the study. each person kicked the football filled with air and the football filled with helium, and the kicking distances, in yards, were recorded. the football that was kicked first was determined by the flip of a fair coin, and the people did not know which football was filled with air and which was filled with helium. what type of study was conducted by the researchers and, of the following, which is the appropriate t-interval for inference?
The appropriate t-interval for inference is a t-interval for a difference between means for independent samples.
What is T interval known for?T interval is known to be used in any given situations where the given sample size is known to be little and population standard deviation is said to be not known.
Note that a small sample size such as l (n≤30) makes the T-interval comes into the right place and as such, the appropriate t-interval for inference is a t-interval for a difference between means for independent samples.
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Based on pythagorean identities, which equation is true?
Answer:
sin2 θ + cos2 θ = 1. This equation is called a Pythagorean Identity. It is true for all values of θ in the unit circle. Using this first Pythagorean Identity, we can find two additional Pythagorean Identities. This is the second Pythagorean Identity. This is the third Pythagorean Identity.
Explanation:
Answer:
sin2 θ + cos2 θ = 1.
Explanation:
Olivia rides her scooter 34 mile in 13 hour. how fast, in miles per hour, does she ride her scooter?
Answer:
In 1 hour she goes 2.25 miles
Explanation:
because 3/4x3=2.25. So the answer is she goes 2.25 miles per hour.
If an object is not in a container, but you can measure the length, width, and depth of the object with a ruler, then what state of matter is it in?
Answer:
Solid
Explanation:
Solids do not flow so they don't need a container and a 3-D shape has length, width and height and anything with height has depth
There are 28 seats in the front row of a theater each successive row contains two more seats than th
Answer:
74
Explanation:
28+2*(24-1)= 74
Given:- There are 28 seats in the front row of theater
Number of rows=24
To find:- The number of seats in the last row.
Use the formula to find the 24th term of this sequence.
Also each successive row has two more seats. This difference is same for the whole theater.
So, this forms an arithmetic sequence.
a1=21
D=2
We need to find number of seats in 24th row; which is given by a24
We use the formula for it
If a cashier rings up 15 customers per hour how many customers can he ring up in eight hours
If a cashier rings up 15 customers per hour , then he would ring up 120 customers in eight hours
Given the above information,
We know that:
15 customers = 1per hour how
X = 8 hours
Then
= 15 x 8 hours
= 120 customers
Hence, If a cashier rings up 15 customers per hour , then he would ring up 120 customers in eight hours.
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Which words represent verbs that would be useful in describing the purpose for a text? select all that apply.
The words that represent verbs that would be
useful in describing the purpose for a text are
the following ones: Inform and define.
Cambridge dictionary defines the verbs "to
inform" as "to tell someone about particular
facts" and "to define" as "to say what the
meaning of something is". When you are about
to describe the purpose of a text, you are to
inform the reader what you want to say and why
you are saying it. You are giving meaning to
your piece of writing.
Read the passage. then describe what effect it has on the plot of the story.
Tomas wrote the equation y = 3x +y equals 3 x plus startfraction 3 over 4 endfraction.. when sandra wrote her equation, they discovered that her equation had all the same solutions as tomas’s equation. which equation could be sandra’s?
The equation which could be Sandra’s equation from the given options is y = 3/4 + 3x
How to write and solve equation?Tomas equation;
y = 3x + 3/4
check all that applies:
y = 6x + 3/2
not the same
y = -6x + 3/2
not the same
-6x + 2y = 3/2
2y = 3/2 + 6x
y = (3/2+6x) / 2
y = 3/4 + 3x
Equal
The complete question:
Tomas wrote the equation y = 3x +3/4. When Sandra wrote her equation, they discovered that her equation had all the same solutions as Tomas’s equation. Which equation could be Sandra’s?
–6x + y = 3/2
6x + y = 3/2
–6x + 2y = 3/2
6x + 2y = 3/2
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Bravo company will be departing on 1 september for exercise peace keeper. the exercise will be a joint effort with the army and the marine corps. both forces will meet in qatar to complete the exercise.
It will classified as "S", thus, the Secret concept will be used to determine the derivative classification of the new document.
What is the Security Classification Guide?The Security Classification Guide refers to the collection of comprehensive guidance about a specific program, system, operation or weapon system elements of information to be classified.
Here, the guide states the "mission personnel location, mission and location will be departing on one September for exercise peacekeeper".
Therefore, the stated word will be classified as "S", thus, the Secret concept will be used to determine the derivative classification of the new document.
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Some business and labor union leaders are dismissive of this new social safety net, suggesting that it discourages people from working, but tech industry leaders argue persuasively that bi can provide workers with needed resources and flexibility to take jobs in the freelance or "gig" economy.
The answer to whether the writer should make the given change to sentence 12 is derived to be; Yes the writer should make the change
What is the Writers Choice?The answer is Yes the writer should make the given change to Sentence 12. This is because the tone of the underlined word suggests to us that the writer is quite hostile toward the business and labor union leaders’ attitudes.
That answer is that way because we are told that the writer is suggesting that their behaviour discourages people from working.
Complete question is;
The writer is considering changing the underlined word in sentence 12 (reproduced below) to “skeptical.” Some business and labor union leaders are dismissive of this new social safety net, suggesting that it discourages people from working, but tech industry leaders argue persuasively that BI can provide workers with needed resources and flexibility to take jobs in the freelance or “gig” economy. Should the writer make this change to sentence 12 ?
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Crack the code properties of parallelograms answer key
In Geometry, the properties of parallelograms include the following:
Opposite sides are congruent.Opposite angles are congruent.Its diagonals bisect each other.What is a parallelogram?A parallelogram can be defined as a type of quadrilateral and two-dimensional geometrical shape that has two (2) equal and parallel opposite sides.
The single opposite side pair theorem.For example, the opposite sides of a parallelogram ABCD are always equal and as such we have:
AD = BCAB = DCIn conclusion, the properties of parallelograms include the following:
Opposite sides are congruent (AD = BC).Opposite angles are congruent.Its diagonals bisect each other.Read more on parallelogram here: https://brainly.com/question/4459854
Sammy is classifying quadrilateral efgh. How can she use coordinate geometry to determine whether efgh is a parallelogram? e(0, 4), f(0, 7), g(1, 5), h(1, 2) sammy can use the distance formula to show that the opposite sides have equal slopes. Sammy can use the distance formula to show that all sides are equal. Sammy can use the slope formula to show that the opposite sides have equal slopes. Sammy can use the slope formula to show that all sides are equal
Answer: Sammy can use the slope formula to show that the opposite sides have equal slopes
Explanation: bc
Sammy can use coordinate geometry to determine whether efgh is a parallelogram by: C. using the slope formula to show that the opposite sides have equal slopes.
What is a parallelogram?A parallelogram refers to a type of quadrilateral and two-dimensional geometrical shape with two (2) equal and parallel opposite sides.
Based on the single opposite side pair theorem, the opposite sides of a parallelogram efgh are always equal and as such we have:
eh = fgef = hgIn conclusion, Sammy can use coordinate geometry to determine whether efgh is a parallelogram by using the slope formula to show that the opposite sides have equal slopes.
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The united states one cent coin is called a penny. banks often
Banks often use a machine to count and package these pennies in rolls that is made up of 50 pennies.
Is a penny a U.S. coin?The penny is known to be one of the first coins that was said to have been made by the U.S. Mint in 1792.
Note that Banks do use a machine to measure all the pennies and then they put them together in rolls that is made up of 50 pennies each. note that there may be a machine malfunctions and as such it may can put fewer amount less than 50 pennies in all roll.
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What are the coefficients needed to balance this chemical reaction to show that matter is conserved? fe + cl2 → fecl3
Let a, b, and c be the coefficients in the balanced reaction:
a Fe + b Cl₂ → c FeCl₃
Count the atoms that show up among the reactants and products. They should be equal on both sides:
Fe : a = c
Cl : 2b = 3c
Let c = 2. Then a = 2 and 2b = 6, so b = 3.
Then the balanced reaction is
2 Fe + 3 Cl₂ → 2 FeCl₃
Look at this timeline from when birds get flu and cows go mad! by john diconsiglio. in 1918, the spanish flu killed 40 to 50 million people. in 1957, asian flu caused 70,000 deaths in the u s. in 1968, the hong kong flu killed 34,000 americans. in 1986, b s e was first diagnosed in britain. in 1996, the first human death from b s e was recorded. in 1997, in hong kong, bird flu was found in humans. in 2003, the first u s case of mad cow disease occurred. this timeline implies that another outbreak of flu is likely. flu outbreaks are a thing of the past. another outbreak will happen in asia. flu outbreaks mostly occur in europe.
The timeline from "when birds get flu and cows go mad" by John Diconsiglio shows that the 1918 Spanish Flu was the most deadly flu till date.
What is Spanish Flu?It should be noted that the Spanish Flu simply means a pandemic caused by the H1N1 influenza.
From the options given, timeline shows that the 1918 Spanish Flu was the most deadly flu till date. It led to the death of several people.
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Answer:
A: another outbreak of the flu is likely
Explanation:
i got 100% on the test