5

In the Western United States there is a saying, "Whisky is fordrinken but water is for fighten!" Water and water rights have beenfought over ever since ra...

Question

In the Western United States there is a saying, "Whisky is fordrinken but water is for fighten!" Water and water rights have beenfought over ever since ranchers and settlers moved into Wyoming,Montana, and the West. Even today farmers and ranchers fight citiesand large developments over water from snowmelt that originatesdeep in the Rocky Mountains.A river starts in a massive and beautiful lake. Then it flowsthrough prime trout fishing areas to a famous waterfall. After itleaves the pa

In the Western United States there is a saying, "Whisky is for drinken but water is for fighten!" Water and water rights have been fought over ever since ranchers and settlers moved into Wyoming, Montana, and the West. Even today farmers and ranchers fight cities and large developments over water from snowmelt that originates deep in the Rocky Mountains. A river starts in a massive and beautiful lake. Then it flows through prime trout fishing areas to a famous waterfall. After it leaves the park, the river is an important source of water for wildlife, ranchers, farmers, and cities downstream. How much water does leave the park each year? The annual flow of the river (units 108 cubic meters) is shown here for 19 recent years. 25.9 32.4 33.1 19.1 17.5 24.9 21.0 45.1 30.8 34.3 27.1 29.1 25.6 31.5 23.3 24.1 23.9 25.9 18.6 Find the range and standard deviation of annual flow. (Round your answers to two decimal places.) range standard deviation (d) Find a 75% Chebyshev interval around the mean. (Round your answers to two decimal places.) Lower Limit Upper Limit (f) Another river is a smaller but very important source of water flowing out of the park from a different drainage. Ten recent years of annual water flow data are shown below (units 108 cubic meters). 3.83 3.81 4.01 4.84 5.81 5.50 4.31 5.81 4.31 4.97 Although smaller, is the new river more reliable? Use the coefficient of variation to make an estimate. (Round your answers to two decimal place.) original river's coefficient of variation smaller river's coefficient of variation



Answers

The term "proof," still used to describe the ethanol content of alcoholic beverages, originated in seventeenthcentury England. A sample of whiskey was poured on gunpowder and set afire. If the gunpowder ignited after the whiskey had burned off, this "proved" that the whiskey had not been watered down. The minimum ethanol content for a positive test was about $50 \%$ by volume. The $50 \%$ ethanol solution became known as $^{\prime \prime} 100$ proof." Thus, an 80 -proof whiskey would be $40 \% \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}$ by volume. Listed in the table below are some data for several aqueous solutions of ethanol. With a minimum amount ofcalculation, determine which of the solutions are more than 100 proof. Assume that the density of pure ethanol is $0.79 \mathrm{g} / \mathrm{mL}$.$$\begin{array}{cl} \hline \text { Molarity of Ethanol, } M & \text { Density of Solution, g/mL } \\ \hline 4.00 & 0.970 \\5.00 & 0.963 \\6.00 & 0.955 \\7.00 & 0.947 \\8.00 & 0.936 \\9.00 & 0.926 \\10.00 & 0.913 \\\hline\end{array}.$$

This is a problem. # 34, we are given a quote from Mark Twain's book Life on the Mississippi. In this, he makes an observation about the statistical tendencies of some people to take information at face value without really thinking of the broader scope of things. In this case, he says that in the space of a 176 years, the Mississippi has shortened itself by 242 miles, which making the observation there gives an average of one mile, one and a third mile per year. So any sensible person would see that based on this data. If you take it at face value, the lower Mississippi was over a million miles long over a million years ago and in about 700,000 years from now will be only about a mile long, both of which seem absolutely observed. This is because a specific model can only be representative of a short period of time and cannot be extended to any infinite amount. Again, this refers back to the scope of the model, where we can only take a certain model within the realm of data that we have already acquired, and shouldn't really use it to predict too far ahead of in the future, as things may be different.

Okay, this is Chapter eight sexual problem one hundred eight, and this is the big one for the chapter, the question reads. In April of two thousand fourteen and an effort to save money, officials in Flint, Michigan, changed their water source from like You're onto Lake two. Different. Remember In subsequent months, residents began cleaning about the quality of their water, and General Motors, which has an engine plant in Flint, stopped using the water in manufacturing because of its corrosive maths that gross iveness having problems that will tune fuel national our age. The water flowed through pipes that happened home, and as it flowed through the pipes, many of which contained lead, the corrosive water became became contaminated with lead retain routine monitoring the tap water and select. Holmes did not reveal the magnitude of the problem because samples were collected after only after a pre flushing the tap along water to run for a time. Ah, Virginia Tech professor and his students began an independent tests of the water becoming water coming from flints taps and got much different results by analyzing the water that initially came from the tap. The first draw Ah, there was odes results which showed elevated lead levels in the tap water ultimately forced officials to switch back to the lake. You're on words. The following table shows a set of data collected by the Virginia Tech team. The lead levels in the water are expressed in use apart for billion one part per billion gold, one one gram of lead for a ten to the ninth, parts of salute and their grams. Ah, exact Examine the data and answer the questions and sort of question. Is the following okay, So they give you some data, and I do have it typed here. I have it zoomed out a little bit right here and along with the calculations already performed. So they ask you the following determined the average value of lead for first Ralph. We're five second flush and the two minute flush round two, three, six eggs. So Okay, so here I typed in AA, the table from the textbook. We can see it here. The first trial values air on average, ten point three parts per billion. After a forty five second flush. That goes down to three point eight one part per billion of lead and, um After two minutes, egg drops down till one point six nine parts per billion. Okay. The data supports the idea that running the tab water before taking a sample made the love glove made the lead levels in the water appear lower. Why might this occur? Absolutely. So again, the parts per billion went from ten point three out of the initial brought three point eight one down to one point six nine. And clearly the corrosive water that, you know, sitting in these lead pipes right before the faucets turn on it, dissolving more more of the lead as the water runs that Webb is entering into your shower into your glass, whatever. And then followed by you. No more fresh water that has less time sitting. Those lead our lead pipes. Okay, The requires water provide the monitor drinking water at customer taps. If lead concentrations exceed fifteen parts per billion in ten percent or more of the taps samples, the water provider must notify the customers and take steps to control the closeness of the water. If the water provider and Flint had used the first draw, which the first rock samples to monitor lead levels would they have been required to take action by the fire mints if the Flint Water provided provider used two minute samples where they have had to take action on. Basically, the two minute flesh really did work, and there were, Let's see there. Three out of fifteen of the samples that they collected were above fifteen parts per billion. Say we've got forty point six three, we have twenty nine point five nine. There were three one, two, three Oh yeah, forty point six three, twenty four point three seven, twenty nine point five nine. So that's percent of the staples. There were no samples, about fifteen parts per billion after the forty five seconds, and definitely none after ten minutes. So clearly you would hope that people would wait a full two minutes or forty five seconds before using that water. But I wouldn't expect it to have them each and every single time, which is okay. And then finally, D asks us even the highest value for the lad from the first, Ross said, which is forty point, say three, and, assuming a resident drinks two liters of water per day, calculate the mass of the lead that the resident would consume over. Of course, one year. Ah, and it tells you to assume the identity of one gram per militar. Okay, so if we've got one year, um, and three hundred sixty five days per year on DH, two litres a day. If we can convince that, invert that two middle leaders per per year of Khun Water consumed or grant. And then we can clear that Graham's water consumed per year, and then they give us the parts per billion. So it's forty point six three grams her and Beth Milgram for leader. Or we can say that, um, per ten to the ninth gram of solution, The way we multiply that by four times ten to the minus eight to convert that Teo Grams on DH then, um, much that way. Oh, yeah. So this this last one is the is the whole calculation. What's that last number? It That's the answer. So our final answer is zero point zero two nine seven than grams of lad per year, which is not small amount. I mean, no, no, no. What? Five grams is a nickel, but yeah. So that's how you answer this large question is a little bit of dimensional analysis, a little bit of unit conversion, taking averages and stuff, and that's it for Chapter eight.

Which in 33 which and a If the numbers off dragon funny can be he used to control mosquitoes population It should be completely ah, randomized experience. Question. See, on the answer is no dentist, which indeed research ships control four presents Ah, off other animals and eliminated Then So they controlled four sides off water Thanks. And with their the where our tools

This question has a lot of unique components, and it asks, You do write the chemical formulas from name, so it's a little bit review of naming. It also has you do a fairly lengthy unit conversion calculation, so it's also a review of unit conversions. And then it has you do a review of the definition of precision, which is the last part of this question. So for the first part, it says right. The formulas for sodium per chlorate and ammonium per chlorate sodium is N a per chlorate. His Cielo four minus ammonium is an H four plus, and for glory, it again is Cielo four minus. So we just need one of each of them to have a neutral ionic compound for the next one. If we have 161 million gallons of water, uh, passing from the stream into Lake Mead per day and we convert the gallons into leaders and we recognize that there's 70 micrograms of per glow rate in that stream water per leader. Up to this point, we have calculated the micrograms of per chlorate in this many gallons of stream water. We can convert the micrograms into grams by dividing by one times 10 to the sixth and then convert grams and 2 kg, which is what is desired by dividing by 1000 and we get 427 kg of per chlorate are being dumped into Lake Mead from the day from the lake from the stream per day. If we want to decrease the 700 micrograms per leader to four micrograms per leader, that's the delusion of 175. So we need to take our 161 million gallons and multiply it by 175 to increase the volume appropriately in order to decrease the concentration to four micrograms for leader, giving us 2.8 times 10 to the 10 gallons, which would be the final volume for dilution. There would still be this original volume added to it, but it's small enough within two or three significant figures that this value wouldn't change. Then last of all, it asks us to review the definition of precision. It gives us three different sets of measurements and asked us to determine which one is most precise. One that is most precise is going to be the set of measurements that has subsequent values closest to each other. And it looks like Maryland. I'm sorry, Massachusetts M. A. Has the values, um, most closest to each other, so that lab would be producing more precise results.


Similar Solved Questions

5 answers
1 Find gg(x) = sin? x+cos Xjas+X
1 Find g g(x) = sin? x+cos Xjas+X...
5 answers
6, The pressure exerled On the walls of container by gas enelosed within it is directly proportional t0 the temperature Of the gas. If the pressure is 6 pounds per square inch when the temperature is 440"Ffind the pressure exerted when the temperature of the gas is 380"F (SHOW WORK)
6, The pressure exerled On the walls of container by gas enelosed within it is directly proportional t0 the temperature Of the gas. If the pressure is 6 pounds per square inch when the temperature is 440"Ffind the pressure exerted when the temperature of the gas is 380"F (SHOW WORK)...
5 answers
16. In order t0 understand the emotions impulses, and habits of humans over the life span_ IS important t0 understand how those same emotions, impulses, and habits developed within Homo sapiens over the past [00,000 years_ This concept is consistent with theory. A) psychoanalytic sociocultural 8 information-processing evolutionary
16. In order t0 understand the emotions impulses, and habits of humans over the life span_ IS important t0 understand how those same emotions, impulses, and habits developed within Homo sapiens over the past [00,000 years_ This concept is consistent with theory. A) psychoanalytic sociocultural 8 inf...
5 answers
2 _ Find eAt and then solve the given initial value problems 2 -2 a X x(o) = -3
2 _ Find eAt and then solve the given initial value problems 2 -2 a X x(o) = -3...
5 answers
Gaseous ethane (CH, CH,) will react with gaseous oxygen (01) to produce gaseous carbon dioxide (CO,) and gaseous water (H,0) Suppose 12,3 ethane is mixed with 80_ g of oxygen. Calculate the minimum mass of ethane that could be left over by the chemical reaction Round your answer to 2 significant digits
Gaseous ethane (CH, CH,) will react with gaseous oxygen (01) to produce gaseous carbon dioxide (CO,) and gaseous water (H,0) Suppose 12,3 ethane is mixed with 80_ g of oxygen. Calculate the minimum mass of ethane that could be left over by the chemical reaction Round your answer to 2 significant dig...
5 answers
3 9 4 3 2 1 5 [ g 6 8 : 3 3 1 180 9 2 2 8! | 8 8 8 1 5
3 9 4 3 2 1 5 [ g 6 8 : 3 3 1 180 9 2 2 8! | 8 8 8 1 5...
4 answers
Gcl(II) chloridk AuClhasa K0f 3.2 <10 % AuNojn ( Dcrcrminc !hc solubility in 0.20 moVLAglhas a solubility product of 8.S*10-/7. What is thc solubility, in mnoles per Litre, of Aglpurc #alet (2)0.010 moVL HI (4)
Gcl(II) chloridk AuClhasa K0f 3.2 <10 % AuNojn ( Dcrcrminc !hc solubility in 0.20 moVL Aglhas a solubility product of 8.S*10-/7. What is thc solubility, in mnoles per Litre, of Agl purc #alet (2) 0.010 moVL HI (4)...
5 answers
Tate can eat 48 corndogs in 15 minutes. Brady can eat 20 corndogs in 10 minutes. Hov many minutes would it take both of them to eat 520 corndogs? Do not label your answer: 2. If you solved the equation + Tr+3jr-3) and got x = 1, would x = be considered as an extraneous solution? Answer YES o NO
Tate can eat 48 corndogs in 15 minutes. Brady can eat 20 corndogs in 10 minutes. Hov many minutes would it take both of them to eat 520 corndogs? Do not label your answer: 2. If you solved the equation + Tr+3jr-3) and got x = 1, would x = be considered as an extraneous solution? Answer YES o NO...
5 answers
Find the vector v with the given magnitude and the same direction as u. Magnitude Direction Ilvll = 4 U = (4, 4)Need Help?ReadliWadchl
Find the vector v with the given magnitude and the same direction as u. Magnitude Direction Ilvll = 4 U = (4, 4) Need Help? Readli Wadchl...
4 answers
Consider the folowing table0.5 30-15Estimate the first derivativeusing Zpt-BFD, provide an estimate of the truncation error (TE): Tick the right (closest) answerf"(-I)s 25, TE ~ 0.1 None of them f"(-1)~ 27, TE & 0.5 f"(-1)~ 10, TE ~ 0.5f"(-1) ~ 27, TE & 0.25
Consider the folowing table 0.5 30 -15 Estimate the first derivative using Zpt-BFD, provide an estimate of the truncation error (TE): Tick the right (closest) answer f"(-I)s 25, TE ~ 0.1 None of them f"(-1)~ 27, TE & 0.5 f"(-1)~ 10, TE ~ 0.5 f"(-1) ~ 27, TE & 0.25...
1 answers
Solve for $x$ a $x^{2}+16=25$ b $x^{2}+6^{2}=100$ c $12^{2}+x^{2}=13^{2}$ d $x^{2}+(3 \sqrt{3})^{2}=36$ e $(\sqrt{5})^{2}+(\sqrt{11})^{2}=x^{2}$ f $x^{2}=(5 \sqrt{3})^{2}+(\sqrt{5})^{2}$
Solve for $x$ a $x^{2}+16=25$ b $x^{2}+6^{2}=100$ c $12^{2}+x^{2}=13^{2}$ d $x^{2}+(3 \sqrt{3})^{2}=36$ e $(\sqrt{5})^{2}+(\sqrt{11})^{2}=x^{2}$ f $x^{2}=(5 \sqrt{3})^{2}+(\sqrt{5})^{2}$...
5 answers
In a few sentences, briefly define or describe thefollowing. (Statistics for Economists)(p) Decomposition of total sum ofsquared (SST)(q) R-square(r) Chi-squared test for anormalityI'm not familiar with cursive writing.
In a few sentences, briefly define or describe the following. (Statistics for Economists) (p) Decomposition of total sum of squared (SST) (q) R-square (r) Chi-squared test for a normality I'm not familiar with cursive writing....
5 answers
Question 15 ptsIn this problem we will prove; using the formal definition of limit; that limz , , 21 +5 = -3. Fill in the blanks appropriately:Let €Select ]be given:Choose &(we will fllin this blank Iater}Assume that 0 IxSelect |[Sclcct |Now we want to show that ((x)[Setret ]So we have16)[Sclect |[sc |#aive Iat fog66|So by choojni $
Question 1 5 pts In this problem we will prove; using the formal definition of limit; that limz , , 21 +5 = -3. Fill in the blanks appropriately: Let € Select ] be given: Choose & (we will fllin this blank Iater} Assume that 0 Ix Select | [Sclcct | Now we want to show that ((x) [Setret ] ...
5 answers
List of integrals, labelled with letters (A)-(D), is given below: Vzp Vi-y y2 dx dy Vx? + y2 '[rv; e"+rdrdy 0 Vr Vr-x sin (r2 + y2)dydr Jo (Vzy-> (x2 + y2) drdyEvaluate the each integral by changing it to polar coordinates_ Then match value of the integral with the letter (A)-(D) corresponding to it31 4 TC 2 24Choose_Choose_0Choose.4 (e 1)Choose__Choose.21Choose.
list of integrals, labelled with letters (A)-(D), is given below: Vzp Vi-y y2 dx dy Vx? + y2 '[rv; e"+rdrdy 0 Vr Vr-x sin (r2 + y2)dydr Jo (Vzy-> (x2 + y2) drdy Evaluate the each integral by changing it to polar coordinates_ Then match value of the integral with the letter (A)-(D) cor...
5 answers
IRrotein insertonlinto the mamma lian ER membrane is typicallylquasitranslationalIcotranslationalIpost-translational preLranslatipnallQuestion 4Classes ol mernbrane transporl proteins include all of Lhe (ollowing exceplproleih transloconsLranspprtersion channcisATP-ppwerad purrps
IRrotein insertonlinto the mamma lian ER membrane is typically lquasitranslational Icotranslational Ipost-translational preLranslatipnall Question 4 Classes ol mernbrane transporl proteins include all of Lhe (ollowing excepl proleih translocons Lranspprters ion channcis ATP-ppwerad purrps...
5 answers
Limits_Evaluate the followving limit: lim 8y" 2 coc(IV) Da~Jy" Shovr that the following limit doec not exict: lim A3CO I" _ 4y"Partial Derivatives_ Ucing appropriate notation lict all firct and cecond order partial derivatived of f(I,y) JIc"~ , (Simplify vhenever pozcible)
Limits_ Evaluate the followving limit: lim 8y" 2 coc(IV) Da ~Jy" Shovr that the following limit doec not exict: lim A3CO I" _ 4y" Partial Derivatives_ Ucing appropriate notation lict all firct and cecond order partial derivatived of f(I,y) JIc"~ , (Simplify vhenever pozcible...
4 answers
When M=2 Evaluate JSrsin dA where R is the regionR=((xyi MMn <* $ VZMa ,0 <ys*}2) Find the Laplace transform of the function24" f(t) T € cosh(Mt) + (3eJt te )e
When M=2 Evaluate JSrsin dA where R is the region R=((xyi MMn <* $ VZMa ,0 <ys*} 2) Find the Laplace transform of the function 24" f(t) T € cosh(Mt) + (3eJt te )e...

-- 0.020189--