Critical Thinking/Math

141,634 results, page 42

English

In act IV,Scene 1 of Romeo and Juliet, two days before her scheduled wedding to Paris Juliet tells Friar Lawrence all the things you would rather do than marry Paris. which of the following lines from her monologue foreshadow the outcome of the play? A."O, bid me leap,rather ...

Calculus with Diffrential Equations: Pleease help?

Suppose that represents the temperature of a cup of coffee set out in a room, where T is expressed in degrees Fahrenheit and t in minutes. A physical principle known as Newton’s Law of Cooling tells us that dT/dt = -1/15T+5 15T + 5. a) Supposes that T(0) = 105. What does the...

pseudo code and flow charts

how can write a pseudo code and a flow charts to solve these? 1 to find the greatest common divisor out of two positive integers. 2 to find the smallest common factor out of two positive intrgers. Write the flow of thinking just as you do it in your head. Work through a sample...

Chemistry

Shown below is a rough sketch of the unary phase diagram (pressure vs. temperature) for carbon dioxide , dry ice. Note the diagram is not drawn to scale and contains breaks in the axes to signify this. Using the diagram, answer the following questions: (a) Give the pressure (...

chemistry

Can someone please explain the behavior of HCl/NaOH mixture as to why it started bubbling/dissolving when combined with Mg and with NH4Cl and why when blue litmus paper was dipped in the HCl/NaOH mixture it turned red. Also can someone explain the correct behavior that is ...

English

5. Complete the following sentence with a word or words that show a logical relationship. Joshua took a nap _______ sorting the mail. A. instead of B. after C. while D. before I picked D, because we cannot use while, since a person cannot sort mail while sleeping. We cannot ...

English

5. Complete the following sentence with a word or words that show a logical relationship. Joshua took a nap _______ sorting the mail. A. instead of B. after C. while D. before I picked D, because we cannot use while, since a person cannot sort mail while sleeping. We cannot ...

Biology

I added amylase to a cornstarch suspension. I thought that amylase breaks down starch into oligosaccharides. But then I heated up the amylase + cornstarch solution and added Benedict's reagent to it (which tests for the presence of monosaccharides). The solution changed colour...

Differential equations in Calculus...plsssss help?

Suppose that represents the temperature of a cup of coffee set out in a room, where T is expressed in degrees Fahrenheit and t in minutes. A physical principle known as Newton’s Law of Cooling tells us that dT/dt = -1/15T+5 15T + 5. a) Supposes that T(0) = 105. What does the...

Chemistry

A XX-g sample of methane, CH4, is mixed with YY atm of O2 (an excess) in a VV L combustion chamber at 125.0°C. The combustion reaction to CO2 and H2O is initiated and the vessel is cooled back to 125.0°C. What is the final pressure in the combustion chamber assuming the ...

chemistry

What mass of solute is contained in 250 mL of 0.895 M NH4Cl? I think that this is a molarity question. Molarity = mass of solute/volume of solution in L. 1 mL = 0.001 L so 250 mL * 0.001 L = 0.25 L 0.895 M = X (mass of solute)/ 0.25 but since the answer is to be in grams, I ...

physics

A metal rod is forced to move with constant velocity along two parallel metal rails, connected with a strip of metal at one end. A magnetic field of magnitude B = 0:350 T points out of the page. a) If the rails are separated by L = 25.0 cm and the speed of the rod is 55 cm/s, ...

physics

A 1.3 Kg block of ice is initially at a temp of -5 degrees celsius. If 7.5 *10^5 J of heat are added to the ice, what is the final temperature of the system? I multiplied 1.3 Kg of ice by the specific heat of ice (2090), then I divided by the amount of heat added. I came up ...

calculus

You are given that f(x) =1+ax+ax2 f′(x) =−(x+2)ax3 f′′(x) =(2x+6)ax4 and the constant a>0. Write down all intervals on which the function is increasing, decreasing, concave up or concave down. (Enter using notation (a, b). Use a comma to separate ...

operations management

project management can be best described as a set of related activities which have a definite starting point and end state, which pursues a defined goal and used a definite set of resources with reference to this discuss the project life cycle, the qualities a project manager ...

statistics

An expert witness in a case of alleged racial discrimination in a state university school of nursing introduced a regression of the determinants of Salary of each professor for each year during an 8-year period (n = 423) with the following results, with dependent variable Year...

Identifying controls and Variables

Smithers thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special Juice. After an hour, Smithers...

physics

At exactly the critical angle: a) all light reflects back into the n1 medium b) all light reflects back into the n2 medium c) part of the light reflects back into the n1 medium, the remainder travels along the boundary between the two mediums d) part of the light reflects back...

physics

At exactly the critical angle: a) all light reflects back into the n1 medium b) all light reflects back into the n2 medium c) part of the light reflects back into the n1 medium, the remainder travels along the boundary between the two mediums d) part of the light reflects back...

Physics

A simple pendulum has a bob of mass M. The bob is on a light string of length l. The string is fixed at C. At position A, the string if horizontal and the bob is at rest. The bob is released from A and swings to B, where the string is vertical. The tension in the string when ...

writing

I need help writing a thesis statement for my philosophy paper. The paper is about two philosopher's, Thrasymachus and Socrates. Essentially the paper is about the multiple definitions of justice that Thrasymachus throws out and how Socrates proves them wrong and points out ...

English

Thank you very much. Can you help me rephrase the last few lines, please? "Obscene as cancer, bitter as the cud Of vile, incurable sores on innocent tongues,-- My friend, you would not tell with such high zest To children ardent for some desperate glory, The old Lie: Dulce et ...

Algebra

On Monday, it took Helen 3 hours to do a page of science homework exercises. The next day she did the same number of exercises in 2 hours. If her average rate on Monday was p exercises per hour, what was her average rate the next day, in terms of p? I know that the answer is 3...

english literature

hi i can't find any information on the author's writing style of The English patient who is michael ondaatje and a farewell to arms by ernest hemmingway. i need to know what writing structure they use and ideas they used for writing these books. can you please lead me to some ...

english

I need help explaining why the answers i have are correct. i am stumped please help me! Read the following sentences, and focus on the grammar area specified in the left column. Then, complete Appendix V by entering the correct sentence choice (a or b) for each number as well ...

8th grade Science

In the early 1900s, Alfred Wegener noticed that some of the Earth's continents looked like they might fit together like a jigsaw puzzle. He also observed that the continents that looked like they fit together had similar plants, animals, and rock formations. From this evidence...

science

1. In this family, Noonan’s Syndrome is being caused by allele (a)______ in gene (b)______; specifically the Mutation with letter (leave off the “Mutation” and just give the letter) (c)______. 2. In this family, deafness is caused by a mutation in the (a)__________ gene...

Chemistry

During the electrolysis of an aqueous solution of CuSO4 with inert electrodes (A) the anode loses mass and the cathode gains mass. (B) the mass of the anode remains the same but the cathode gains mass. (C) the mass of the anode decreases but the mass of the cathode remains ...

Social studies/ Psychology

i have to do a project on the endocrine system it must be a display that is 3d any ideas it must not be store bought such as a model that i purchased i have to make it myself i was thinking of using styrofoam and shaping it into a human outline and making little carvings or ...

Government

I am working on a test review for Gov't and I cant find any information whatsoever in the text book. The question is... Identify and explain why the following is important... 2. Events leading to the American Revolution: French & Indian War, Albany Plan, Stamp Act Congress, ...

MTH233/statistics UOP

A car company says that the mean gas mileage for its luxury sedan is at least 21 miles per gallon. You believe the claim is incorrect and find that a random sample of five cars has a mean gas mileage of 19 miles per gallon and a standard deviation of 4 miles per gallon. Assume...

HELP MATH

Thank you Reiny. I really appreciate the help but I am not really understanding the the exprssions well enough to explain the answer. Also at first I was thinking that the answer has nothing to do with actual money but only how much inventory or merchanise that Anna has to ...

Chemistry II

The total volume of hydrogen gas needed to fill the Hidenbrug was 2.0e8 L at 1.0 atm and 25 degrees Celsius. How much heat was evolved when the Hidenburg exploded, assuming all the hydrogen reacted? I will be happy to critique your thinking on this. First, calculate the moles ...

plant biology

I'm doing a writing assignment on plant stress physiology. The stress that I chose to research was heat stress. One of the things that I have to do is describe at least 3 experiments that I plan to perform (hypothetically speaking, of course). At least one experiment should be...

Algebraic proof.

can someone help and explain these to me? AngleWXZ and Angle ZXY is complementary the measure of AngleWXY=3x+3 a.)measure of angle=______ =measure of angle WXZ+the measure of AngleZXY(Angle Addition Postulate) b.) measure of AngleWXZ+ the measure of AngleZXY=_______(Def. of ...

English

3. What is the simple subject of the following sentence? Then, glancing upward at Lady Weathers's face, he saw a look of consternation. A. he B. Lady Weathers's C. consternation D. face I picked a, because he is the subject, saw is the verb and Lady Weathers face is the object...

business

Today, many organizations and managers face new challenges every day. One critical aspect of the challenges that managers lack is within the planning stage. You have been asked by your manager to conduct a preliminary search of recommending the two most common types of ...

Physics

When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12 Hz. When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4 Hz. Find the ratio m2/m1 of the masses. For Further...

Literature

A pschoanalytic approach to the reading of literature views conflict and character of any literary work as a reflection of the needs,emotions,status of mind and subconcious desires of the author.By extension,in literature,this approach tries to explain why Oedipus kills he's ...

Chem

what does an -ite or -ate ending in a polyatomic ion mean? i'm thinking it mean Oxygen is in the formula, or is it Sulfur is in the formula? i'm not sure oxygen is in both ites and ates. The ate has more oxygen than ite. NaClO2 sodium chlorite NaClO3 sodium chlorate NaClO4 ...

ea

Q: penn foster examination number 02603600 1. Which learning technique is frequently used in the expository model of teaching? A. Deductive thinking C. Discovery learning B. Inductive thinking D. Knowledge-based learning my Answer..A 2. Which technique is used after a student ...

Go Math grade 6

The Webster family is planning a barbecue for one hundred people. The Webster family needs one plastic plate for each person at the barbecue. The Stop and Shop store and Market Place Store both sell plastic plates in packages of fifteen for five dollars and forty-eight cents ...

Physics

A 1.1 kg particle-like object moves in a plane with velocity components Vx = 30 m/s and Vy = 90 m/s as it passes through the point with (x, y) coordinates of (3.0, -4.0) m. (a) What is its angular momentum relative to the origin at this moment? _____ kg*m^2/s k (b) What is its...

Hypothesis test

Please explain the solution to this problem. Individuals filing federal income tax returns prior to March 31 received an average refund of $1056. Consider the population of "last-minute" filers who mail their tax return during the last five days of the income tax period (...

Economics - Formula Help

Instead of spending the $50 a month you receive, you decided to invest it in your money market account at your bank. Assuming you will earn an average of 5% each year and inflation is forecasted to 2.5% a year, how much have you effectively earned after ten years? (Hint: must ...

Finance

Innovation Company is thinking about marketing a new software product. Upfront cost to market and develop the product are $5 million. The product is expected to generate profits of $1 million per year for 10 years. The company will have to provide product support expected to ...

FIN 4018 - INCOME TAX PLANNING

During 2014, Jake Baxter made one charitable donation of $100,000 to ACO, a Canadian registered charity. His net income for the year is $120,000. Required: a) Calculate Jake’s maximum FEDERAL non-refundable tax credit for charitable donations if he claims this donation in ...

English -ms. sue

ms. sue for my mental illness story i be writing, what narration I use? teacher say i can use same one in yellow wallpaper or come up with own unique style. I not know what be better than first-person narration? I think of third person narration but i not know if i be able to ...

Chemistry! Test tomorrow, pls help !

we're given the equation: C6H6(l)+Br2(l) --> C6H5Br(l)+HBr(g) you need to prepare 50.0g pf bromobenzene and you expect no more than a 75% yield. How much benzene should you begin with if the yield is 75%. i know that % yield = (actual/theoretical) * 100 % but i don't know ...

To Margie and others:

Please remember these things, especially #4: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her areas. An even better subject heading would be ...

english

Vinegar (by Roger McGough) Poem for Roger McGough (by Adrian Henri) sometimes A nun in a supermarket i feel like a priest standing in the queue in a fish and chips queue Wondering what it’s like quietly thinking To buy groceries for two. as the vinegar runs through (1967) ...

English

Vinegar (by Roger McGough) sometimes i feel like a priest in a fish and chips queue quietly thinking as the vinegar runs through how nice it would be to buy supper for two (1967) Poem for Roger McGough (by Adrian Henri) A nun in a supermarket standing in the queue Wondering ...

english

I shall wirte what I would say, but we are speaking about modals, so I think I have to answer with them... My solutions: 1. Your teacher is carrying a pile of heavy books. Offer help. -> Shall I carry that for for? or Sorry, can I help you? 2. A friend tells you that he/she...

HELP!!!!!!

In what ways is soil pH and light the two critical factors for plant growth in the Boreal Forest? Since this is not my area of expertise, I searched Google under the key words "ph light 'Boreal Forest'" to get these possible sources: (Broken Link Removed) http://66.102.7.104/...

Anatomy & Physiology

How do the gas laws (Daltons, Boyles and Henrys)apply to the respiratory processes? I will be happy to critique your thinking on this. I know Dalton's Law is the law of partial pressures, Boyle's law is the law for a fixed mass of ideal gas at fixed temperature, the product of...

Stress

Think of a stressful time in your life. How did you deal with the stress. Right down a thoughtful answer. The most stressful time in my life came about when my great grandmother died. I was shattered completely after hearing that news, and so was my family. I was sad after ...

drwl please check

A shot-putter puts a shot (weight = 70.1 N) that leaves his hand at distance of 1.53 m above the ground. (a) Find the work done by the gravitation force when the shot has risen to a height of 2.18 m above the ground. Include the correct sign for work. (b) Determine the change...

Physics

5) You are pushing a 55 kg refrigerator along at a constant speed of 1.5 m/s using an applied force of 250 N when the floor type changes from tile to carpet. The carpet has a coefficient of static friction of 0.62 and a coefficient of kinetic friction of 0.54. Are you pushing ...

Biology

A scientist separates plant pigments from leaf, root, and stem samples by paper chromatography. All the leaf chromatographs include yellow green and blue green spots but none of the root and only a few of the stem chromatographs have these green spots. Many of the samples have...

Principles of finance

Faulkner’s Fine Fries Inc (FFF) is thinking about reducing its debt burden. Given the following capital structure information and an expected EBIT of $50 Million (plus or minus 10%) next year, should FFF change their capital structure? FAULKNER'S FINE FRIES INC. (FFF) ...

Chem

A bottle of win contains 12.5% ethanol by volume. The density of ethanol (C2H5OH) is .79 g/mL. Calculate the concentration of ethanol in wine as mass percent and molality. I calculated molality as 2.4 m/kg, but I'm stumped on the mass percent [although I'm hitting the right ...

English

Everyone knows that water is important. Who doesn’t like to drink a cool glass of water after a long day? But some people don’t seem to worry about polluting the local water supply. They should! I like water, and so should everyone else. What change would most improve this...

history

"... In administering the laws of Congress I shall keep steadily in view the limitations as well as the extent of the Executive power trusting thereby to discharge the functions of my office without transcending its authority. ..." Review section 1. What does the phrase "...

Physics

I am stumped on this homework problem and would like help at least to get me thinking in the right direction: It is a 2-D problem where a spring "plunger" is being used to propel a block forward. More specifically: the block rests against an ideal spring that is being held in ...

Biology

Okay so if i have two enzyme catalyzed reactions: 1) delta g of the ES = -22kJ/mol 2) delta g od the ES = 42 kJ/mol Is this first reaction going to have a higher reaction rate because the of the negative delta g, because doesnt a negative delta g give you a spontaneous ...

Algebra

Please help me with this problem, I'm not entirely sure on what to do to solve it. Thank you, tutors. The weight of an object is related to its length by the equation: weight (in pounds) = 3L^3 (in feet). If the object is 6 feet tall, what is its weight? Given answers: A 6 ...

Teaching in Early childhood progras

1)When children rely on outside controls to guide their actions, they're operating at the _______ level of self-regulation. A. adherence B. amoral C. internalization D. identification 2)Which statement most accurately describes the Developmentally Appropriate Practices ...

Chemistry

Ok, I'm trying my best here, I'm learning, and I'm thinking I'm on a roll, until I can't get the right answer again..... First.. the butane question Calculate the mass of Butane needed to produce 82.7g Carbon dioxide. 2C4H10 +13 O2--->10H2O +8CO2 Ratio is 2 C4H10 to 8 CO2 ...

overview of teaching techniques

which of the following is frequently used in the expository model of teaching? (a)deductive thining(my answer) (b)inductive thinking (c)discovery learning (d)knowedge-based learning what type of learning uses formal lectures? (a)student-centered (b)teacher-redirecting (c)...

TO ALL STUDENTS

... including "inverkeithing high school" [see #s 2 and 4] -- Please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her ...

Statistics

Let p1 represent the population proportion of U.S. Senate and Congress (House of Representatives) democrats who are in favor of a new modest tax on "junk food". Let p2 represent the population proportion of U.S. Senate and Congress (House of Representative) republicans who are...

Repost- Biology

A scientist separates plant pigments from leaf, root, and stem samples by paper chromatography. All the leaf chromatographs include yellow green and blue green spots but none of the root and only a few of the stem chromatographs have these green spots. Many of the samples have...

English

Thank you. Can you check these sentences for me, please? 1) When do you think we should hold our first meeting to agree on a common theme for our Comenius project? 2) I think that we’ll agree on which students to include in the project during our parent-teacher class ...

Lit

(Both from "The Rocking-Horse Winner") Paul's mother can best be described as; loving and gentle, sensitive and kind, cold and distant, or simple and carefree. I think it's a toss between loving and gentle and sensitive and kind but I also felt that she was cold and distant at...

AMERICAN HISTORY

. Zbigniew Brzezinski, the national security advisor in the 1970s,A. tried to reverse the policy of détente. B. was against cooperation with China. C. believed replacing the Minute Man missles with MX missiles was wasteful. D. supported the SALT II treaty I WAS THINKING THAT ...

English

(1)Once the lecture starts:let your mind dart (2)ahead during pauses to anticipate what is next. (1) a) No change b)Once the lecture starts, let your mind c)Once the lecture starts; let your mind I chose b) (2) a)no change b)ahead (during pauses) c)ahead, during pauses d)ahead...

chemistry 12

sry, a misprint. its: O2+2F2 <--> 2OF2 The question is looking for Kc. 2.50 mo of oxygen and 2.50 mol of fluorine gas are placed in a 2.00L glass container at room temperature. The container is heated to 400K and the following equilbirum is established: O2+2F2 <-->...

ela

proof read for me He went to eat toast and then he went to buy cards. One of them he was posting card to his mom. He asked his dad to go alone but his dad was little worried about his because he does not know the language. Lao Xu gave me a piece of paper to Alex. Alex asked ...

Statistics

What does it mean when we state: "Many frequency distributions in the social sciences are approximately? And, why does this occur? My thinking is: I would have to say that many frequency distributions, in particularly the social sciences are approximately normal. When working ...

statistics

A survey of industrial salespeople who are either self-employed, work for small, medium-sized, or large firms revealed the following with respect to incomes: Of those who earn less than $20,000, 9 are self-employed, 12 are employed by small firms, 40 by medium size firms, and ...

Chemistry

Magnesia (MgO) is used for fire brick, crucibles, and furnace linings because of its high melting point. It is produced by decomposing magnesite (MgCO3) at around 1200 oC. 1. Calculate the equilibrium pressure of CO2(g) (in atmospheres) above MgCO3(s) at 298 K. 2. Calculate ...

PHYSICS--SHM

A pendulum consists of a uniform disk with radius r = 10 cm and mass 545 g attached to a uniform rod with length L = 500 mm and mass 300 g. (figure: one end of the rod attach to a pivot and the other end attach to the center of the disk) (a) Calculate the rotational inertia of...

Chemistry

I did an experiment to determine the freezing point depression and then find the molecular weight of the unknown solute added to the solvent, what would be the effect on calculating the molecular weight if some cyclohexane(my solvent) evaporated while the freezing point of the...

Science (chem)

Calculate the weight of water that can be removed from a wet organic phase using 50.0g of magnesium sulfate. Assume that it gives the hydrate listed in table 12.2 table says hydrated: MgSO4.7H20 I'm not quite sure how I would go about this b/c when drying a organic layer you ...

finance

Which of the following statements is CORRECT? (Points: 4) Junk bonds typically provide a lower yield to maturity than investment grade bonds. A debenture is a secured bond that is backed by some or all of the firm's fixed assets. Subordinated debt has less default risk than ...

Business Statistics

The manager of a vacation resort has claimed that, on average, a guest spends at least $3000 at the resort during a one week stay, including meals and entertainment. A member of the accounting staff does not believe the amount is that high. They authorize you to settle their ...

STAT

A manufacturer of a new car claims the typical car will average 32 mpg of gasoline. An independent consumer group is skeptical of the claim and thinks the mean gas mileage is significantly different than the 32 claimed. A sample of 23 randomly selected cars produced a mean mpg...

PHYSICS!!!

if the same ball rolls down from three different length trackways with a 20degrees elevation, its acceleration on the short-length trackway is 1.08m/s^2;its acceleration on the medium-length trackway is 1.79m/s^2;and its acceleration on the long-length trackway is 1.52m/s^2. ...

Language Arts

In "Dust of Snow," the speaker says that something "Has given my heart / A change of mood." What has caused this change of mood? A: Seeing a crow perched in a tree. B: Taking a walk in the woods. C: Thinking about his day.** D: Having snow shaken on him...

Trig

solve to four decimal places 1.3224sinx + 0.4732=0 :for all real x values solve for sinx, then arcsinx. solve for sinx, then arcsinx. so its sinx= -.4732/1.3224 and i get -.36594 but how do you get the other values for a real x Ok, use your calculator. Sinx is negative in the ...

Statistics

For all of the following use the five step process to solve the problem in the question, that is, state the null hypothesis, the alternative hypothesis, the level of significance and the type of test (z-test, t-test, p-value, confidence limit and whether it is two tailed, one-...

Civics

Pedro is thinking about buying U.S. savings bonds. However, there is a financial institution controlled by the government that may actively discourage Pedro from buying bonds. How and why would such a financial institution do this? A. Stocks on Wall Street may be doing quite ...

chemistry

The percentage of phosphourus in a detergent product may be determined by sample treatment including the precipitation of magnesium ammonium phosphate MgNH4PO4*6H2O (MW=245.41), using an excess of both magnesium and ammonium ions. The separated ans washed precipitate is then ...

English (writing)

Hello! I have to write an essay a critical paragraph/essay tommorrow on the following topic: In the first half of the novel, the author uses the idea of gender identity and societal expectations. In what way does the author use the character of Scout to comment on this topic...

english

Select the excerpt from "Mother Tongue" by Amy Tan that best describes language bias. 1. I've heard other terms used, "limited English," for example. But they seem just as bad, as if everything is limited, including people's perceptions of the limited-English speaker. 2. I ...

statistics

In prior investigations made by a local Gas and Electric Company, 65% of homeowners prefer to heat with gas instead of electricity. In a recent study of 200 homeowners 60% prefer heating with gas. In a two tailed test at a .05 level of significance can we conclude that the ...

English

I really need to have a look at the first stanza of Owen's poem as I'm unsure of tense choice. Thank you. 1) In the first stanza the soldiers are retreating towards their trenches. Instead of being youthful, strong fighters, they are presented as prematurely old and weak. 2) ...

Finance Question - Formulas

Instead of spending the $50 a month you receive, you decided to invest it in your money market account at your bank. Assuming you will earn an average of 5% each year and inflation is forecasted to 2.5% a year, how much have you effectively earned after ten years? (Hint: must ...

Physics

Some spacecraft design uses a solar sail made of aluminized plastic. As sunlight reflects off the sail, radiation pressure drives the spacecraft outward away from the sun. a. If the sail material has a density of 600.0 kg/m3, what is the maximum thickness of the sail for which...

Algebra

An oil spill from a tanker in pristine Prince Williams Sound in Alaska begins in a circular shape only 2 ft across. what happens to the area if the diameter is doubling each hour. How large will the spill be in 24 h? diameter= 2^(t+1) t is time in hours. Area= PI*radius^2= PI...

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