Andrew

This page lists questions and answers that were posted by visitors named Andrew.

Questions

The following questions were asked by visitors named Andrew.

what is the age of a rock whose Argon 40 / Potassium 40 ratio is 1.55? The half life of Potassium 40 is 1.28 x 10^9 years I am confused on this question theres no examples in my book but i have to know it can someone explain to me how to get to the answer...

which economic type(market,traditional, or command economy) is the most efficient and which is the most equitable? Please explain why. These sites briefly explain these economic types. http://www.missouri.edu/~cee/Grades/ceehs36.html http://regentsprep.or...

Consider a solution containing 37.0 (+/- 5)% (wt/wt) HCL in water. The density of the solution is 1.18 (+/- 0.01) g/mL. To deliver 0.0500 (+/- 3%)mol of HCL requires 4.18 (+/- x) mL of solution. Find x. My teacher said x= .4. How do you solve for uncertai...

the third term of a geometric sequence is t3= -75 and the sixth term is t6=9375. determine the first term and the common ratio. how do I do this question I am tying really hard but I still don't comprehend this question! We have t<sub>3</sub> = -75 and t<...

Hi, im having problems with the following problem. The main issue is actually starting the problem. Find the two points on the curve y = x^4 - 2x^2 - x that have a common tangent line. First, find the derivative of y(x) so that you know the slope of the t...

I have to make a 3-d model of a hurricane. Does anyone have any suggestions for how I can do this? The materials to use, etc? an easy thing to use is cotton balls, pained dark. To get a good picture, use google images, or some other image gallery. the nev...

Hello everyone. I'm new to this board, found it on google when trying to find someplace to have someone look over my paper. I'm in my last year of spanish at high school, but I haven't done much writing in Spanish over the past few years (and I'm not that...

how do I tell the main difference between simm and dimm in electronic and physical? Also I don't know the question of "explain an upgrade to a Compaq R4000 computer to the maximum amount of memory. It currently contains two 512M modules."

1. The utility function is given by: U=x+y and the budget line is x+2y=100. Then the price of good x goes up to 4. Find the Hicksian substitution effect, income effect, and total change in demand for good x from the change --- Ok i read the theory but i c...

The table below shows annual demand (in 1,000,000 units per year) for Widgets. Use this information to calculate a constant growth forecasting model. Use your growth model to forecast demand for the years 1995 and 2000. Year Demand 1990 1.1 1991 1.5 1992...

i need to show that the given equation is an identity. using composite argument properties. (cosAcosB-sinAsinb)^2 + (sinAcosB+cosAsinB)^2 = 1 Composite argument properties: cos(A + B) = cosAcosB - sinAsinB sin(A + B) = sinAcosB + cosAsinB Substituting: [c...

Hello everyone. I recently had to write a short essay for spanish for my quaterly project. I was wondering if anyone could check it over for me and point me out to any corrections I need to make. It'd be greatly appreciated for your help. Below is my span...

What is an example of asexual reproduction in a plant? http://en.wikipedia.org/wiki/Vegetative_reproduction

I was told to write a Manuscript on an article. How exactly do I write this thing? how do i get started? Can someone please provide me with an example. Read the article. What did it say? What was it point of view? Was the author complete in the analysis?...

I have to write a manuscript on an article. How do I do this. I looked online, and I found this " Each manuscript should contain a separate cover sheet with the manuscript title, the authors’ names, their degrees, affiliations and complete mailing address...

Posted by bobpursley on Saturday, January 27, 2007 at 8:56pm in response to English (Speech). Read the article. What did it say? What was it point of view? Was the author complete in the analysis? What needs to be done? How did it make you feel? So in the...

PLEASE FINISH HELPING ME.. I asked experts to answer you. I am not a person who is a expert on writing format. The issue of cover sheet, etc has to be clarified by the teacher. Generally, teachers specify a style guide and format issues. There is no right...

How do I write a Manuscript speech on an article? What should it look like? Any examples? Check this site for a lot of information about writing a manuscript speech. http://www.shkaminski.com/Classes/Handouts/ms_spch.htm Thank you for using the Jiskha Hom...

The concentric circles, or growth rings, represent the cross-section of a tree with a diameter of 16 centimeters. The width of the outer tree ring measures 2 centimeters. What is the area in square centimeters of the outer ring of the cross-section of the...

Hello. Just wondering if anyone could look this over for me and make any corrections. It'd be really appreciated. I've never been a good writer in Spanish, and it's this once-a-quarter essay projects that cause me trouble. Thanks in advance for any help!...

Can you name the six quarterbacks taken in the first round of the 1983 NFL draft and the order in which they were selected? We are a homework help service, helping students who are stuck with homework. If this is homework,I recommend you get your parents...

Good website on Pat Tillman. Know doing on Pat instead of football. http://en.wikipedia.org/wiki/Pat_Tillman If this is a report for school, here are some suggested topics: The use of illegal drugs in professional sports. The effect of sports finances on...

Our teacher gave us this quote "the one who got away" and we are supposed to figure out what it means. If anyone in the class does the entire class gets to go to our local Mexican restaurant for lunch!! Please help! It is pretty obvious what it means, in...

Hi. I need some good sources to use. Lots of them. I'll explain I need to write a 6 page research paper on Jack London and the book "The Call of the Wild" (yes both), using only things told to me from sources. Here's another thing: I can't plagiarize any...

An air mattress is 2.1 m long, 0.55 m wide, and 13 cm deep. If the air mattress itself has a mass of 0.22 kg, what is the maximum mass it can support in fresh water? I know that I can find the volume and area, and the density of water. But I cannot find a...

What is the Number one and two mostly used art programs by fashion designers? after making the drawings in these art programs, how do the freelancers get their designs onto different clothing and material and mass produce it.. What are the steps that are...

Ok so I have to use kinematic equations to solve these. But I make like a X and Y chart Ex...X|Vix=2.89 dx=? t=? Y|Viy=0 dy=3.7 and so forth. 1. A cliff diver strikes the water 10.3 meters from a cliff 25 meteres high. At what horizontal speed did he leav...

how would i find the pH of this? 1.0 M NH3 (Kb = 1.8 x 10-5)

Determine the pH of a solution that is prepared by mixing 100.0 mL of 0.125 M NaOH with 145 mL of 0.125 M CH3COOH (pKa = 4.75). Report your answer to 2 decimal places. Please help, I have no clue!!

Calculate the mass in g of aniline (C6H5NH2, Kb = 4.3 x 10-10) that must be added to 1.4 x 102 mL of 0.24 M (C6H5NH3)Cl solution in order to generate a buffer solution of pH 5.56. Give your answer to 2 significant figures. Noclue...

Can someone tell me why N2^2+ is a diamagnetic molecule based on MO theory and diagrams? I get a bond order of 2, which is paramagnetic.

a right traingle has legs of lengths 3 centimeters and 5 centimeters. Use the pythagorean theorem to find the area of a square drwan on the hypotenuse of the triangle.

which is the smallest unit of measurement? m, cs, km?

Hydrogen cyanide is a weak acid with Ka = 4.9 x 10-10. Calculate the pH of a solution (to 2 decimal places) containing 2.28 g of Sr(CN)2 per 158 mL.

A sample of KHC2O4 weighing 0.5839 g is dissolved in 25 mL of water and an endpoint is reached when 31.99 mL of KOH has been added. Calculate the molarity of the KOH solution. KHC2O4(aq) + KOH(aq) ¨ K2C2O4(aq) + H2O(l) because the coefficents are all the...

I'm not surprised the answer was wrong. Chemical reactions are by mols and not by grams; therefore, 1 mol of each reactant produces 1 mol of each product but a mol is not a gram. SO, convert 0.5839 g KHC2O4 to mols, convert mols KHC2O4 to mols KOH (that's...

For a sample with a mean of M=85, a score of X=90 corresponds to a z-score of z=1.00. What is the sample standard deviation?

What is the molarity of the resulting saline solution when you mix 1 mole HCl with 1 mole NaOH? I'll provide some basic information that I know, but could somebody tell me how to get the answer using the data? The balanced reaction is as follows: HCl+NaOH...

When installed in the year 1,985, a cobalt-60 radiation therapy source (k = 0.131 yr-1) produced a beam capable of delivering 323 rem per minute (a unit to describe the beam intensity). What is the beam intensity (in rem/min) in the year 2007?

Expand f(x) = (x+x^2)/((1-x)^3) as a power series and use it to find the sum of series (SUM from n=1 to infinity) (n^2)/(2^n) PLEASE HELP.

I need to figure out a pattern (using an algebraic expression) that will get me from: 1 to .01, 2 to .02, 3 to .04, 4 to .08, etc. all the way to 25 to 153,948.16! HELP

Use the standard normal distribution to find P(-2.25 < z < 1.25).

The local lottery sets up a game wherein a player has a chance of collecting $750. The player must choose a 3-digit number and if it matches, the player receives $750 It costs $1 to play the game. What is the expected profit (or loss) for each player.

In a certain microwave oven on the high power setting, the time it takes a randomly chosen kernel of popcorn to pop is normally distributed with a mean of 140 seconds and a standard deviation of 25 seconds. What percentage of the kernels will fail to pop...

which orbitals in the molecular orbital diagram contain the lone pair electrons around O? My answer: one of the lone pairs on oxygen exist in an "s" orbital. two of the lone pairs exist in "p" orbitals not involved in bonding. -is this correct.

What is the anode and cathode of this problem? A chemist wishes to determine the concentration of CrO4-2 ions electrochemically. A cell is constructed consisting of saturated calomel electrode (SCE) and a silver wire coated with Ag2CrO4. The SCE is compos...

Can you find something about California that starts with a I?

what has to do with Califoria that starts with a k

im working on a social studies weird ABC thing, but I can't find anything for U. please help

I cant find a thing that has to do with California that starts with a O (the letter) please help thank you

i need a word about california that starts with a P

I need something that s related to California that starts with a Q

Is there another famous person named John Deere. I can only find the John Deere that invented tractors.

I'm learing about connotations of words. Although many words have connotations that most of us agree to because they are culturally shared, some worlds cna be given a different connotation in some contexts. However, since I am a ballingual student, I'm ha...

I have a problem with 'diction' I kind of 'feel' the sentence, but I don't know what to write. Thanks a lot!! "Art is the antidote that can call us back from the edge of numbness, restoring the ability to feel for another." By using the word "antidote", w...

simplify and evaluate where g=3 (2g-1)^2-2g+g^2

I have to write a narrative essay about a time when i had to do something that went against my beliefs or convictions. I thought about it for like an hour, but I can't figure out a decent example. Can anyone tell me an example so I can understant what kin...

What volume of 3.0M Na2SO4 must be added to 25ml of 1.0M BaCl2 to produce 5.0g of BaSO4? The answer is 7.1ml but I don't get it very well. I thought I could use mole ratio of the balanced equation, but it did not work. Thanks a lot!

I have a pretty specific question... I'm wondering if the "Binge-Eating Disorder" is actually included in the DSM 4 as one of the disorders, or if it's just in there for one of future considerations.

Can you find some links to a site that has a picture of a northwest indian fishing

Okay look: 00-01-$7586 01-02-$8022 02-03-$8502 03-04-$9249 04-05-$9877 Jason started college during the 2001-2002 year and graduated during the 04-05 year. How much did Jason's education cost? How do you do it????

if a letter has a line on it does it mean its a long or short

the sum of two numbers is 34. their difference is 18. what are the two numbers?

2K (s) + 2H2O (l) --> 2KOH (aq) + H2 (g) When 0.400 mole of potassium reacts with excess water at STP, what is the volume of hydrogen gas produced? the answer is 4.48 liters but I keep getting wrong numbers! please help! Thanks!

um i need info on native american fishing nets

what is the season that salmon return?

how do i find dy/dx of y = (x^3-1)/cos(x) do I start with (x^3-1)*cos(x)^-1 ? Thanks!

This is because the energy from the sun is __________ the water up. Is this heating?

A question on "The Lottery" by Shirley Jackson ? I am writing an essay explaining how the use of literary devices creates a sense of horror. I wrote down things like "withheld knowledge" (that the author not telling readers the "prize" of the lottery) but...

A rubber ball with a radius of 4.8 cm rolls along the horizontal surface of a table with a constant linear speed v. When the ball rolls off the edge of the table, it falls 0.83 m to the floor below. If the ball completes 0.68 revolutions during its fall,...

Which one is correct? "There are studies and research that supports categorizing obesity as a mental disorder..." or "There are studies and research that support categorizing..."

Sorry, another quick question... u is a vowel, so shouldn't there be a "an" before it?/ For example: "Distress is not an universal association..." However, microsoft word keeps correcting me to say "a" instead.

I'm so confused!!!!!!!!!! I need to write out the equation for the reaction between (+)-tartaric acid and (+_)-1-phenylethylamine. I know tartaric acid is C4H6O6 and 1-phenylethylamie is C8H11N. Where do I go from here?

If the tolerance on the volume of a cube is a 2% error then what should the tolerance be fore each side? So what i did was V=x^3 dV = 3x^2 dx dV/V = 2% What should I do next? the answer is 2/3% but I don't know how it works. Thanks.

Please help!! It's due tomorrow morning!!!!! --Why is it necessary to use a mixed aqueous-organic solvent system for the oxidation of cyclohexENE?

What is the balanced equation for the preparation of cis-1,2-cyclohexanediol???

The per capita public debt (in thousands of dollars) of the United States for the years 1940 to 1990 appears below. Create a scatterplot and determine a trend line. Based on your scatterplot, what do you expect the per capita public debt to be in 2020? Ye...

In grade 11 and trying to understand this poem which the teacher gave very little explanation for, telling to "interpret the poem for yourself" The poem is called Bushed and is written by Earl Birney. He invented a rainbow but lightning struck it down sha...

Why does the reaction of 2-bromo-2-methylbutane and ethanolic solution of silver nitrate interfered by the presence of water in the sodium iodide in acetone reagent? (Substitution chemistry) Thanks for any help!!

what are the order intermolecular forces according to strength??

Does anyone know about the Canadian Stormtroopers?? I heard during world war 1 Germans named the Canadians "Stormtroopers"- Who were they? Some links would be helpful! Thanks

What is the difference between type I and type II immune response?

I just need somebody to explain in plain english what "Immune Modulation" is. Google doesn't help at all, it just directs me to bunch of science research papers!

Rearrange and simplify for b when A= 1/2 bxh

Rearrange and simplify for x when y= mx+b

Using the Disk Method or washer method (im not sure which one) Find The volume of y=x^3 , y=1 , x = 2 revolving around the X axis

washer method!? Find the volume of y=x^2+3, y=3, between [0,2] around y=3

BrO3- + 5Br- + 6H+ <--> 3Br2 + 3H2O If 25.0 ml of 0.200-molar BrO3- is mixed with 30.0 ml of 0.45-molar Br- solution that contains a large excess of H+, what is the amount of Br2 formed, according to the above equation? The answer is 0.00810 moles but I d...

you and a friend are collecting leaves.In your collection of 45 leaves, 4 are oak leaves. In your friend's collection of 36 leaves, 3 are oak leaves. Whose collection has a greater fraction of oak leaves? how do i convert it into a fraction?

What is the pH of the solution that results from mixing 5 ml of 0.2 M NaOH and 100 mL of 0.05 M lactic acid? (Pka of lactic acid= 3.86)

What is the pH of the solution that results from mixing 5 ml of 0.2 M NaOH and 100 mL of 0.05 M lactic acid? (Pka of lactic acid= 3.86) Responses Use the Henderson-Hasselbalch equation. The mixture you have indicated will react to form a buffer, the base...

Which of the four solutions (all same concetrations, same volume) requires: a) the greatest amount of base for complete titration? b) the greatest amount of base to titrate to any given pH? HCl, acetic acid, formic acid, HNO3. i put HCl for both... is tha...

Calculate the pH that would result if 0.40mL of 1.50 M HCl is added to 12.0 mL of a 0.065 M solution of the fully deprotonated form of the tripeptide glu-asn-leu. I know I'm supposed to do an ICE table... and the equation will look like this initially: de...

How would i explain the readiness of allyl alcohol to react with the Lucas test???? Thanks!!

How would i explain the readiness of allyl alcohol to react with the Lucas test???? Thanks!! ------------------- I still don't understand-- I know Lucas Test is best for tert carbocations but 2-propen-1-ol gives secondary carbocation at best even with rea...

Answers

The following answers were posted by visitors named Andrew.

Hi, can you help me with my homework?

thank you very much! your info was very helpful!

I need help with my homework

I said that Hg2Cl2 acted as both the anode and cathode?

thanks a lot, but that guy didn't found the McD food chain. he just made it more popular.

and try not to do counties,I already did too many of them

25 25 out of 5 is 5 because 25divided by 5 is 6. 5x5 is 25.

i mean, i wanted a picture of the net

thank you just wat i needed

its just like a hobby. Some people like it some don't.

i think you divide 500 by 6

your question isn't clear

i still don't get bob help!!!!!!!!!!

since PV=nRT PV/nRT = 1 or did you mean PV=nRT? P is pressure in atm and V is volume in liter and n is # of moles and R is 0.08206 and T is tempurature in Kelvin.

oh they were made of sinew?

hmm... e i guess

i mean chinook salmon

in the pacific northwest

search mold in wikipedia

this is the blank word

it means that salt is made up of different stuff then the things that you use to make it.

No it wouldnt be the same because one is a disk rule one is a washer rule

your right im sorry, i was thinking we were rotating around x=3 lol but will you do it so i can check my answer?

i think u forgot to add the 2x^3 to the antiderivitive for the fundamental theorm step

oh i see thank you

Thank you, I understand all of it but I'm not sure how I'm supposed to know what the pKa is

Assign a value to t as long as that value keeps the statement true, then it is correct. t in this would be anything greater than -9 to solve it it would look like: t+6>-3 -6 -6 t>-9

So with NaOH... it's a strong base... it denatured the protein so it eliminated the suspension? Adding acid to the original suspension didn't do anything because it didn't denature the protein? In strong acid, the protein is exposed to the strong acid and...

So since the vapor pressure of water is 23.8 torr p = 0.99 * 23.8 p = 23.6 is this right?

Thanks for your help!!

Thank you so much! I was trying to work with wrong E_cell

Bad: People began bootlegging and smuggling alcohol from Canada, and brewing/distilling it in their basements. With caused numerous arrests. Good: Less alcohol related accidents and deaths were recorded.

The answer is D thanks Ms. Sue

Shouldn't it equal zero anyway because what does Y equal?

okay thanks alot guyz!

yall are So helpful..

It's because, you the equation is 1/2(K)(x^2) So you change the cm to meters, and then you subtract, getting (.02) then you get (.02)^2, cuz u have to square it, Then you * by K which is 88, and then divide by 2. That gives you the SPE, (spring potential...

Thanks. Therefore, the answer is 512. 2 x 16 x 2 = 64 4 x 32 x 4 = 512 Appreciate your help, Andrew

We were eating apples, bananas, and watermelon on Tuesday.

1 million bottles at $1 a bottle is $1 million minus 50 cents a bottle is $500,000 minus $200,000 fixed costs per year is $300,000 minus $150,000 in taxes is $150,000 left plus 10% per year from the bank is $165,000 times 5 years is $825,000 made. I would...

1x10^-6 divided by 6.02x10^23 equals 6.02x10^17 1.25x10^20 divided by 6.02x10^23 equals 2.08x10^-4

What if the height of the water is only 15 cm, half the height of the hemisphere?

1. find a common multiple for the denominators of both fractions. 2. combine the fractions together. do not expand the numerator first. 3. cross multiply. 4. expand the terms 5. make x the subject. 6. solve.

look at the algebraic equation that u posted previously. try to form an equation similar to that.

sorry don't understand

I understand, your answer never mind. Thanks :)

Sorry didn't see your second answer, great thanks a lot.

what is a summary for this book? Answer as soon as possible!!!!!!!!!!!!!!!

Haha never thought of it that way! Thanks!

The answer is wrong. What did u get?

would the long side be 36 in?

sugar is a covalent compound

no the girls can be arranged 9 different ways and the boys can be arranged 49 different ways

This question is unsolvable.

508.4 N [2(2.0m)/6.2m]x788.0N

1. a 2. d 3. c 4. b 5. a 6. b 7. d 8. a 9. c i don't feel like doing any more. stop being so lazy

All I see is that you need a comma after "your agent."

Republicans favor business. Teenagers are seeking their own identities. Top students work hard. But I don't like where I can go with any of them, and I can't think of anything more!

What is the naming convention for a vector when two arrow point outward from a central point?

if the government lowers taxes the republican party will be very excited and it will be as if the republicans are the leaders and democrats are not having a change to make their own decisions.republicans always have wanted to not have to pay taxes.

Would that make the dimensions x=6 and 12? or did I do that wrong?

i got V= 4x^3-72x^2+288x V=12x^2-144x+288=0 Then I foiled that and my answers were x=6 and x=12. Clearly I have no idea what I'm doing, I have a test in my class on wednesday and I need to be able to make sense of this in my homework due tomorrow

post an answer.

im suppose to write an answer to that prompt but i have no idea what the question is answering so i cant think of what to write

thanks for the help!!!!!!! =']

What influence did the American Revolution have around the world?????

maybe its because people were bullying them, they want to take out their revenge on other people!!!!!!!! i hope that i helped

i nnnnnnneeeeeeeeeeedddddddddddddddddddd help people,,,,,,,,,,,,,,,,, soooooooooo plzzzzzzzzzz hhhhhheeeeeeeelllllllllppppppp mmmmmmmmmeeeeeeeeeee

ssssssssssssssssssooooooooooooooooooooooooo rrrrrrrrrrrrrrrrrrrrrr uuuuuuuuuuuuuuuuuuuuuu sssoooooofffffffiiiiiaaaaaaaa

1. Resolve the initial velocity. 2. Find the time taken for the horizontal velocity of the ball to hit the wall. 3. Using the value of the time found in 2,find the height reached by the vertical velocity of the ball.

it becomes slower as by newton's 2nd law, it undergoes a change in momentum, assuming its mass is kept constant. a resultant force acts in the opposite direction of its motion. hence it retards.

acceleration = (final velocity minus initial velocity)/time taken. the formula is based on newton's 2nd law, which states that the rate of change of momentum of an object is directly proportional to the resultant force acting on it. F = m(v-u)/t ma = m(v-...

Let the vector be V. Vsin(51.6)= 494. for the x-component, V(x) = Vcos(51.6) Try drawing the y,and x axis, the vector V, and a right angled triangle.

Think about how you can locate these three consecutive terms. What is the first term, and the common difference? The sum of an AP for the first n terms is given by S(n) = (n/2)(2a+(n-1)d) where a = -7, d = 4 So lets say the 3 consecutive terms are the 14,...

zero, by newton's 2nd law. having constant velocity, there is no change in its momentum over time. hence there is zero resultant force on it, and it has zero acceleration.