Tuesday

January 27, 2015

January 27, 2015

Total # Posts: 1,096

**chemistry**

The electrochemical cell described by the cell notation has a standard emf (electromotive force) of -0.68 V. Calculate the value (kJ) for the standard free energy change of the cell. Round your answer to 3 significant figures. Pt(s) l MnO2(s) l MnO4-(aq), H+(aq) ll H+(aq), VO2...
*June 6, 2010*

**school**

no one
*June 1, 2010*

**planning & sys requirementa**

what are the problems with the reliability and usefulness of analyzing business documents as a method for gathering information reguirements. Haow could you cope with these problems to effectively use business doumnts as a source of insights on system requirements?
*May 31, 2010*

**Math**

Check your formula it should be Rsquared not R2 (60x60) not 2X60
*May 26, 2010*

**Organic Chemistry**

I'm doing the same thing but I do not understand it fully. All of my general chemistry knowledge is gone.
*May 18, 2010*

**math**

2x-5+2(2x)+17=-2-5x+(4xy-7)
*May 11, 2010*

**Math **

Hi, can anyone help to: determine the equation of a parabola with the vetex (0,3) and passing through (3,4)? How to figure out the coeffiecient of X?
*May 5, 2010*

**Math **

Hi, can anyone help to: determine the equation of a parabola with the vetex (0,3) and passing through (3,4)? How to figure out the coeffiecient of X?
*May 5, 2010*

**mgt**

what is evaluation by objectives?
*May 4, 2010*

**mgt**

what is evaluation by objectives?
*May 4, 2010*

**mgt**

what is evaluation by objectives?
*May 4, 2010*

**mgt**

what is evaluation by objectives?
*May 4, 2010*

**mgt**

what is evaluation by objectives?
*May 4, 2010*

**mgt**

what is evaluation by objectives?
*May 4, 2010*

**mgt**

what is evauation of objectives?
*May 4, 2010*

**mgt**

what is evauation of objectives?
*May 4, 2010*

**machanics\**

can u tell me what formula i should be using to answer this question? If a stone falls past a bird on a ledge moving at 4 m/s, how fast will the stone be movingjust before it hits the ground below 9 seconds later? A. 92.2 m/s B. 48.2 m/s C. 352.8 m/s D. 36 m/s
*May 3, 2010*

**begining algebra**

A cyclist traveling at a constant speed completes 3/5 Of a trip in 1 1/2h. In how many additional hours will the cyclist complete the entire trip?
*May 2, 2010*

**aed204**

I am taking that class too......this is cheating can't you do your own research
*May 2, 2010*

**machanics**

can u tell me what formula i should be using to answer this question? If a stone falls past a bird on a ledge moving at 4 m/s, how fast will the stone be movingjust before it hits the ground below 9 seconds later? A. 92.2 m/s B. 48.2 m/s C. 352.8 m/s D. 36 m/s
*May 2, 2010*

**math (parabola)**

Hi, the question is: Write the equation of the parabola with vertex(3,-1) and x-intercepts 2 and 4. I did this: y=?(x-3)^2-1 How to find the a-value? Many thanks, and I appreciate any answer!
*April 30, 2010*

**General chemistry**

oh ok thank you very much, is an online class and have to teach myself so somethings get confusing
*April 27, 2010*

**General chemistry**

No=18.0432 but im not sure what you mean by convert to BaCl2
*April 27, 2010*

**General chemistry**

A researcher needs 5.00 mg of 128Ba for an experiment. If the half-life of 128Ba is 2.43 days, how many milligrams of 128BaCl2 must she order from the manufacturer if it takes 4.50 days to ship the material from the manufacturer to the university? (Assume the molar mass of ...
*April 27, 2010*

**General chemistry**

thank you so much
*April 27, 2010*

**General chemistry**

What is the decay constant for a radioactive isotope which decreases to 34% of its original value in 2.48 hours?
*April 27, 2010*

**physics**

i dont know
*April 18, 2010*

**chemistry**

aparently it is the 100% transmittance one....
*April 17, 2010*

**social studies**

btw i am egyptian and i went through some of that stuff when i was in egypt it is horrible
*April 16, 2010*

**CAM**

FYI NOT ALL MUSLIMS OR ARABS ARE LIKE THE PEOPLE WHO PARTICIPATED IN 911
*April 15, 2010*

**language ms.sue could u please check these thanks**

suffixes empty-empties monkey-monkeys security-securities holiday-holidays pity-pities friendly-i don't know this one strawberry-strawberries delay-delays birthday-birthdays say-says vocabulary-vocabularies conspiracy-conspiracies memory-memories candy-candys story-stories...
*April 15, 2010*

**Math**

I hate word problems! Can anyone just change this Following word prob to equations pls. I can do the rest! Sam invested $4500, part at 7%, the rest at 8 1/2%. After one year, the interest earned on 7% investment was $150 less than the interest earned on the 8 1/2%. How much ...
*April 15, 2010*

**Math**

Hi! Can someone solve these for me pls? Y=10/x y=1/2x+4 solve for x and y thanks
*April 15, 2010*

**Sci 275**

Just a note that "fallow" should be spelled "follow". I think the rest of the paper is fine.
*April 14, 2010*

**math please help i don't understand this at all**

a cylinder is formed by first tapping together the opposite edges of a rectangular piece of paper that is 11 inches long and 8.5 inches wide. if the height of the completed cylinder 8.5 what is its volume?use 3.14 for pie
*April 14, 2010*

**language please check my work**

-revise the sentence for a clear meaning here is the sentence Surgeons moved around the operating room, skillfully using tools wearing slippers. -the revised sentence Surgeons,wearing slippers,moved around the operating room skillfully using their tools. please if there is a ...
*April 14, 2010*

**language could you please check my work**

i am sorry but what does avocation mean?
*April 14, 2010*

**Math**

O God I hate word problems! Is there any mechanical way to memorize word problems? Can anyone just change this Following word prob to equations pls. I can do the rest! Sam invested $4500, part at 7%, the rest at 8 1/2%. After one year, the interest earned on 7% investment was...
*April 14, 2010*

**meaning**

what does beam mean
*April 13, 2010*

**digraphs**

what is a digraph and could you please give me some examples
*April 13, 2010*

**Math**

Many thanks Reiny!!
*April 13, 2010*

**Math**

Thanks Dylan! But I wanted to know HOW to WRITE OTHER equations to have the same answers as the ones below? NOT how to solve these! 2x+5y=8 x-3y=-7
*April 13, 2010*

**business**

Human nature is the wrong and right ethics usually learned from families and friends.
*April 13, 2010*

**Math**

Hi! How to determine other linear systems that have the same solution as this system: 2x+5y=8 x-3y=-7 many thanks.
*April 13, 2010*

**Math**

Thanks Damon! first I eliminated z by adding equation 1+2 (1st one *2) and got same as urs x+y= 10. Then, I eliminated z by adding equation 2+3 (2nd equation*3, and 3rd equation*2) and got x-y=6. x+y= 10 x-y=6 x=16 why is this wrong?
*April 9, 2010*

**Math**

How is graphing a system of inequalities similar and different than that of equations?
*April 9, 2010*

**Math**

Help pls! I just need to set the equations only, I can do the rest. The qu. Is: The sum of three numbers is 15. The sum of the first, the second, and twice the third is 20. The sum of the first, twice the second, and three times the third is 27. This is what I did: 1st # = x ...
*April 9, 2010*

**Math**

Dear Reiny! U r a life-saver! Is there a short cut to how can I set the question or change word problems into math one? It seems that this is my problem! Also, why did my way worked as well with different answers? My answers satisfied all equations as well. Many thanks.
*April 9, 2010*

**MATH**

X= 3/3 (divide both sides by 3 to get rid of x's co-efficient) x=1
*April 9, 2010*

**math**

Dear Reiny! U r a life-saver! Is there a short cut to how can I set the question or change word problems into math one? It seems that this is my problem! Also, why did my way worked as well with different answers? My answers satisfied all equations as well. Many thanks.
*April 8, 2010*

**math**

Hi, for the question, "the sum of two numbers is equal to a third number(x+y=z). The sum of twice the first, three times the second, and twice the third is 7(2x+3y+2x=7). The third number is 3 more than the first(3+z=x), have I set the equations right? I got different ...
*April 8, 2010*

**Science**

a ship sails at an average speed 30km/h for 2 days. How far has the sip traveled
*April 6, 2010*

**Chemistry (empirical formula)**

C3H6O
*April 5, 2010*

**writing **

I have to write an eight-sentence paragraph that fully develops this topic. A high school diploma is important to my future...... (i know it's not that great of a topic but i have no options) but i keep going in circles and i can't get my ideas together .I keep ...
*April 5, 2010*

**english**

I have to write an eight-sentence paragraph that fully develops this topic. A high school diploma is important to my future...... but i keep going in circles and i can't get my ideas together .I keep wondering off the topic. Can anyone help me write this down. my main ...
*April 4, 2010*

**Physics**

consider a pair of planets that find that the distance between then is decreased by a factor of 5. Show that the force between them becomes 25 times as strong.
*April 2, 2010*

**science please no websites **

could you please give me an example of the following(types of friction) : -static -sliding And also: -friction -buoyant force -air resistance Thank You!
*March 31, 2010*

**science please no websites**

what is the scientific definition of individual THANK YOU!
*March 31, 2010*

**science**

what is the scientific definition of individual THANK YOU!
*March 31, 2010*

**7th grade Science**

Describe how the instantaneous speed of a car changes when the car is moving with constant speed , speeding up, and slowing down please answer as soon as possible
*March 28, 2010*

**language arts**

in revenge of the whale what is thomas nickerson's fate?
*March 25, 2010*

**Math**

John invested $2500, part at 8% and the rest at 12% per annum. The two parts earned equal amount of interest in one year. How much was invested at each rate?
*March 25, 2010*

**Ethics **

found help on justanswer dot com
*March 25, 2010*

**University Physics II**

How do you convert electric field into electric force?
*March 24, 2010*

**math**

The worksheet was a little confusing but after going all the way through it i got the answer of HALO
*March 24, 2010*

**nutrition**

What is the difference between simple and complex carbohydrates? How are sugars are broken down and used in the body? What are the benefits that carbohydrates provide to the body? I need help finding where I would find this infomation....I have found sites but they do not ...
*March 23, 2010*

**English**

Hey, Any ideas on how to make your own fairytale? I've already started but all i have is a couple of random paragraphss. I wasnted to make it instead of a happily ever after the hero leaves the heroin, but i want them to both have a strong love. And I don't have any ...
*March 20, 2010*

**English**

THANKS BIG HELP!
*March 19, 2010*

**English**

Hey, I need your suggestions on this one. Could you please name some of the most beautiful, most emotional pieces of writing you've ever read. It can be poetry or prose or titles of novels or even someting you've written yourself, if your gonna do that can you please ...
*March 19, 2010*

**math**

Good job!!!
*March 16, 2010*

**math**

Log (32) 2 = 5 Take the number at the bottom of the log and raise it to the power of the number after the "=" sign. So 2^5 = 32. So what do you think the answer to the next question will be?
*March 16, 2010*

**Math**

If 4 stamps cost $1.84, the you will divide $1.84 by 4 to get the price of 1stamp: So, $1.84/4 = $0.46 If 1 stamp costs $0.46, then multiply it by ten to get the price of 10stamps: $0.46 x 10 = $4.6 Now try this and see if you understand the question: Janessa bought 12 oranges...
*March 16, 2010*

**math**

.16, 1.6, 16, 16.1, 161
*March 16, 2010*

**math**

CORRECT!!!
*March 16, 2010*

**algebra**

Oh sorry, I jst wrote the answer and did not tell you how i arrived at it which means you wont learn from it to solve similar problems so here's how i arrived at my answer: First, multiply the terms inside the bracket by the one outside. So it'll be: ((7y*3y)-(6*3y...
*March 16, 2010*

**algebra**

21y^2-2y or y(21y-2)
*March 16, 2010*

**english**

How can I make this a better five –sentence paragraph using chronological order to arrange the details of the paragraph? Signing to my homepage is simple. First I go to the school website which is ………. . Then I click on student login. Then I enter my ...
*March 10, 2010*

**biology**

i have to choose between concentration ,magnification,or synthesis.
*March 8, 2010*

**biology**

when decomposers are unable to break down industrial wastes,they become more concentrated as they move through the food chain.this process is called biological ? can anyone please help me.
*March 8, 2010*

**chemistry**

how much ethyl alcohol must be added to 1.00l of water so that the solution will not freeze at -4f
*March 6, 2010*

**Ethics**

What does it mean to have legal corporate social responsibility? Economic corporate social responsibility? Philanthropic corporate social responsibility? Confused!!
*March 4, 2010*

**SCI/275**

i want to use solar, wind, coal, and natural gas.But I am not sure how to write this in a presentation to present to board members. Any help you can give me would be helpful.
*February 27, 2010*

**SCI/275**

I need to come up with a resource energy plan including renewable and non renewable resources(2 types), methods to conserve and help the environment,government efforts. I need to writh this as presenting it to board memebers. Can any one help me.
*February 27, 2010*

**biology**

The structure of the forelimb of a bird is similar in structure to that of the forelimb of a mammal suggesting that they both descended from a common ancestor.this similarity is an example of ________ evidence that support the theory of evolution. is it vestigial or anatomical
*February 25, 2010*

**biology**

The structure of the forelimb of a bird is similar in structure to that of the forelimb of a mammal suggesting that they both descended from a common ancestor.this similarity is an example of ________ evidence that support the theory of evolution. please can anyone help me.
*February 25, 2010*

**Writing Sentences and paragraphs II**

Will do! Thank you for reviewing my work!
*February 16, 2010*

**Writing Sentences and paragraphs II**

Your favorite cousin has moved to your town and is looking for a job. Her previous experiences are working as a cashier and sales clerk at two department stores. You know she plans to apply at similar stores in your town. But you also know she is a perfect match for a job ...
*February 16, 2010*

**Algebra Word problem**

Suppose you are a student at AXIA COLLEGE and you do your OWN home workQ!!
*February 14, 2010*

**Physics**

E = k*Q/(r*sqrt(r^2+(L/2)^2) now L/r<1 then L^2/r^2 is approximately 0 therefore take out r E= k*Q/[r*r(sqrt(1+L/2r)^2)] sqrt(1+L/2r)^2)= sqrt(1) E = k*Q/r^2 therefore the answer is point charge ... it goes like r^-2
*February 14, 2010*

**algebra**

how do you figure out 3y-1=13-4y?
*February 9, 2010*

**5th grade**

mary had 10 yards 2 feet of ribbon. She needed to cut peices for her 3 friends. If each friend got the same amount of ribbon, how much did each get? In your answer, there cannot be more than 12 inches.
*February 8, 2010*

**math**

Solve this equation: -9h - 6 + 12h + 40 = 22. can u please help i'm lost here.
*February 5, 2010*

**Algebra**

Review examples 2, 3, and 4 in section 8.4 of the text. How does the author determine what the first equation should be? What about the second equation? How are these examples similar? How are they different? Find a problem in the text that is similar to examples 2, 3, and 4. ...
*February 4, 2010*

**College related**

No it was indeed not a good moral character judgement on there part
*February 3, 2010*

**BUISNESS AND TECHNOLOGY**

do your own homework. This is practically the whole semester of homework!
*January 31, 2010*

**maths**

-x+3-4=0 -x+3=4 -x=1 x=-1
*January 30, 2010*

**math**

ou have only four weights and a balance scale. If your task is to weigh ANY load from 1 to 40 kg (integers only) then how much should each of your 4 weights weigh?
*January 29, 2010*

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