Tuesday
September 30, 2014

# Posts by EM

Total # Posts: 213

Chemistry - Electroplating - URGENT
Sorry that should say 1115433.526 coulombs, not 8346.453.
June 17, 2014

Chemistry - Electroplating - URGENT
Ahh thank you - so then there would be 8346.453 coulombs needed instead of 2225.721. As there are two unknowns, I cannot solve this problem any further... this is for an assignment due tomorrow, what should I do?
June 17, 2014

Chemistry - Electroplating - URGENT
"To save on production costs, most automobile bumpers are never coated with more than 200 g of chromium. Determine how much time a standard bumper should be immersed in a chromium vat." This is what I have so far- 96,485 coulombs are required to plate 1 Cr; 52/6 = 8....
June 17, 2014

math
there are 30 marbles in a bag; 4 blue, 10 red,6 white, 10 yellow. You randomly draw5 marbles without replacement. Find the percent of drawing 2 red marbles and at least 2 white marbles.
May 23, 2014

English
What are some good insight questions for A Separate Peace? Some topics can include: Wroter's craft Setting POV
January 16, 2014

algebra 2
x^2 - 3x + 5 = 0. solve using quadratic formula. show solution
January 15, 2014

GPA
Currently, my GPA is a 3.5 and I'm a freshman, I'm currently taking two honors classes. Do you think I'll be able to raise it up to a 4.0 by senior year?
January 15, 2014

algebra 1
The graph models the situation because when you plug in -40 for x, you get y=14, which is a point on the graph. When you substitute 40 in for x, y=10, which is also plotted on the graph.
November 22, 2013

economics
Suppose the demand curve for a monopolist is QD = 500 − P, and the marginal revenue function is MR = 500 − 2Q. The monopolist has a constant marginal and average total cost of \$50 per unit. a.Find the monopolist’s profit-maximizing output and price. ...
October 17, 2013

physics
Your town is installing a fountain in the main square. If the water is to rise 20 m above the fountain, how much pressure must the water have as it moves slowly toward the nozzle that sprays it up into the air? Assume atmospheric pressure equal to 100,000 Pa.
October 13, 2013

physics
If you fill a container with air at room temperature (400 K), seal the container, and then heat the container to 500 K, what will the pressure be inside the container? Assume atmospheric pressure equal to 100,000 Pa.
October 13, 2013

chemistry
What volume of 0.140 M HCl is needed to neutralize 2.53g of Mg(OH)_2
September 29, 2013

biology
I need to know how egg whites would react when tested in iodine and Benedict's solution.
September 22, 2013

Government
Looking for an issue and a solution where the people and the government can help
September 5, 2013

Math
40% of what is 32?
August 7, 2013

Math
laura can paint a house in 4 hours and lucky can paint a house in 2 hours. How long would it take for Laura and Lucky to paint a house together?
August 5, 2013

Organic Chemistry
How do I make an IR Spectrum of C6H12S2 (Allyl Propyl Disulfide)
April 24, 2013

Grammer
Hi beautiful people! Quick question if you are writing a congratulatory letter should you say - I would like to take the time to congratulate you on your extraordinary commitment to XXX charity. OR - I would like to tak ethe time to congratulate you for your extraordinary ...
April 11, 2013

math
so I am wrong, thank you for explaining which it can not be. Thanks
April 2, 2013

math
Which of the following is a formula for finding the volume of a cube? A. v=e^3, where e= the edge length B. v=(lwh)^3, wherel= length,w=width andh=height C.v=6e^2, where e=the edge length D. v=b*b, where b= the area of the base I picked A since V=s^3 or e^3 for the volume of a...
March 30, 2013

maths-linear equation
(4,3),(-1,6)
March 11, 2013

Calculus
With is the integral of (9(sinx+cosx))/sin(2x)
March 7, 2013

english
what would a thesis statement be for Old Jules by Mari Sandoz
March 4, 2013

English I
Can someone please help me with this analogy? Joints:inflamed::_______atrophy. It is a crossword and there are 7 spaces. Thanks!
February 5, 2013

Chem
when 2.31 moles of sulfur hexafluoride are synthesized from te elements, how many grams of fluorine were used PLEASEEEEE HELPPPP MEEE!
February 4, 2013

Math
Given that f(x) = 2x^2 - 8x + 9, 0 ≤ x ≤ 3. (a) Find the average value of f. (b) Find c such that f(average) = f(c).
January 27, 2013

Math
Find the volume generated if the region bounded by y = sin 2x and y = cos x, π/6 ≤ x ≤ π/2 is revolved about the line y = 2. Use the method of washers.
January 27, 2013

Math
Find the volume generated. The region is bounded by y = 4x-x^2 and y = 8x-2x^2, and is rotated about x = 2. State which method (washer, disk, cylindrical shell) is used
January 27, 2013

math
Find the area of the region between the curves y = sin x and y = x^2 - x, 0 ≤ x ≤ 2.
January 27, 2013

pre-algebra
You split \$1500 between two savings accounts. Account A pays annual 5% interest and Account B pays 4% annual interest. After one year,you have earned a total of \$69.50 in interest. How much money did you invest in each account?
January 24, 2013

Math
Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y = 8 sin x, y = 8 cos x, 0 ≤ x ≤ π/4; about y = −1
January 24, 2013

Math
The region bounded by the given curves is rotated about the specified axis. Find the volume V of the resulting solid by any method. x = (y − 6)^2, x = 1; about y = 5
January 24, 2013

Math
Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y = (64 − x^2)^(1/4), y = 0, x = 6, x = 7; about the x-axis
January 21, 2013

Math
Find the volume V of the described solid S. The base of S is a circular disk with radius 4r. Parallel cross-sections perpendicular to the base are squares.
January 21, 2013

Math
The region bounded by the given curves is rotated about the specified axis. Find the volume V of the resulting solid by any method. y = −x^2 + 14x − 45, y = 0; about the x-axis
January 21, 2013

Math
Translate and simplify "six less than twice the sum Of a number and three. I was not sure how to set it up Is it 2(x+3)-6 Or would it be set up 2x+3-6 I can solve it once I know how to set up the equation. Confused. Thanks for your help
January 20, 2013

Finite Math-Probability
Suppose we have an urn with 10 white balls and 6 red balls, and we create an experiment by randomly selecting 6 balls from the urn. a) What is the probability that the sample has the same number of white balls as red balls? b) What is the probability that there are more red ...
November 24, 2012

Precal
Find the exact values of tangent and cosecant for angle theta in standard position whose terminal side passes through the point (16,-4)
November 4, 2012

Math (Calculus)
I'm pretty sure that you have to either find the angular or linear speed. That's as much as I could tell you. I'm sorry. Could you possibly help me with my question? It's on the current questions page.
November 4, 2012

Pre-Calculus
An open box is to be made from a piece of cardboard 11 in by 17 in, by cutting out a square of length x from each corner and turning up the sides. Express the volume V of the box as a function of the length x of the side of the square cur from each corner.
November 1, 2012

math
Thank you for explaining this to us.
October 17, 2012

math
Hi I am trying to help my 4th grade daughter with homework and I am stuck with this question. Please help and explain how you got the answer. Thanks Jill's fish weighs 8 times as much as her parakeet. Together, the pets weigh 63 ounces together. How much does the fish ...
October 17, 2012

math
Thank you so much for your help and explaining my wrong answer
October 14, 2012

math
I make A snack mix by combining 3/4 of a pound of gummy bears with one pound of peanuts. I have 3 1/4 pounds of peanuts a) how many pounds of gummy bears do I need to make the snack mix? b) how many pounds of snack mix can I make? My answers are: I have a) 2 1/2 pounds of ...
October 14, 2012

Chemistry
Sulfuric acid, H2SO4, is sold as a 36% aqueous solution. What is this concentration in A. Molality B. Molarity C. The Mole Fraction Please and thank you. :)
October 1, 2012

Calc 2
How to find Cross Section Area given x=5 x=-5 y= sqrt(25-x^2) y= -sqrt(25-x^2)
September 5, 2012

math
After you have worked out at the gym on a stationary bike for 49.0 minutes, the distance gauge indicates that you have traveled 15.7 miles. What was your rate in km/hr?
August 27, 2012

math
annie,betty,Cathy and Danial are going to stand on a row for taking pictures. How many ways can they stand?
August 25, 2012

Economics
Hey I've just had a mind blank. What is the term for when a business has outgrown its limits and is starting to perform badly? Thanks for the help
August 16, 2012

history
Okay usually on a multichoice test you'd get two questions that are clearly incorrect. Eliminate these. Then look at the remaining two options and choose the "most correct answer". So which one do you think it is?
August 16, 2012

Calc AB
How do you simplify: (x^(3/2))(x+x^(5/2)-x^2)
August 6, 2012

Legal Studies
Hi beautiful people Is there any specific way for a conclusion to be written for a Legal essay? I know the introduction and structure of points are slightly varied and I'd just like to know if there are any pointers on conclusions. Thanks a heap Em
June 1, 2012

Law
Hi beautiful people Is there any specific way for a conclusion to be written for a Legal essay? I know the introduction and structure of points are slightly varied and I'd just like to know if there are any pointers on conclusions. Thanks a heap Em
May 31, 2012

math
3,8,15,24,35 1,2,3, 4, 5 I think it's t(n) = (n+2) * n
May 22, 2012

math
For the sequence 3,8,15,24,35.... find a formula for tsubn in terms of n.
May 22, 2012

History/Global Affairs
Hi beautiful people! I'm working on an assignment talking about Australia's changing national identity in the EYES OF THE WORLD. I need to look at a particular event and or events as a way to highlight this change. The problem is that I was thinking the assignment ...
April 19, 2012

Chemistry
If a gas at 0 celsius were warmed by 1 celsius ansd the pressure did not change then the volume would a. increase by 1/273 b. decrease by 1/273 c. impossible to predict
April 17, 2012

English
Aaah! Thanks so much! So rather than the specific "link" its the concept behind it? So like the total control of actions - that are being viewed and judged and maybe also psychological control? Would they work. Thanks again!
March 23, 2012

English
I have to write an english assignment about banning a reality tv show. One of the paragraphs has to be about how 1984 underpins the whole concept of the show. I chose (Next Top Model). I have found a lot of links like unacceptable standards of beauty, manipulation of the ...
March 23, 2012

Physics
A 300L water tank is 2.8m above the ground and constantly refills itself to always have 300L present. A pipe with a diameter of 12.5mm runs from it to the shower. Due to gravity, work out how many litres per minute are produced?
February 5, 2012

Math
To have a constant concentration of .25 ppm of a substance with 18,000gal/water flowing, how much would I need to add per minute? Does that make any sense? How would I go about answering that? I don't want the answer, but maybe just a push in the right direction because I ...
February 1, 2012

English:Poetry
Oh, okay. Because I was thinking that the lines " Its woods, and that uncertain heaven recieved/ into the bosom of the steady lake,/ this boy was taken from his mades, and died Because I though recieving into the bosom meant "into the embrace" or something ...
January 24, 2012

English:Poetry
Hi beautiful people :) For English we need to select a poem and write a story based on the poem. The poem I have selected tentatively is William Wordsworth's "There was a Boy". What I was wondering was whether the boy jumped off the cliff, fell off the cliff or ...
January 24, 2012

Physics
In unit-vector notation, what is the torque about the origin on a particle located at coordinates (0, -4.90 m, 4.04 m) due to (a) force 1 with components F1x = 2.67 N and F1y = F1z = 0, and (b) force 2 with components F2x = 0, F2y = 1.23 N, F2z = 5.41 N?
November 17, 2011

Ancient History
Thanks for these! I'll definately try using them as well :D
October 25, 2011

Ancient History
Hi beautiful people! I'm struggling to find visual sources on Aristophanes 'the Wasps', Cleon and the political system of Athens. I've been trying to find some for more than six hours1 Any help would be much appreciated. I have already used Perseus, the British...
October 25, 2011

Chem
Thank you.
October 21, 2011

Chem
When doing a limiting reagant problem, I need to determine to mole ratio, right? But the problem is if 19.6 g of H3PO4 reacted with 22.4 g KOH... How do I get two separate mole ratios? The answers are: 3/1 for H3PO4 and 3/3 for KOH, but why?
October 21, 2011

Chemistry
I've literally been trying to understand this for hours: MgCI2 does not decompose when heated. A student inadvertently uses hydrochloric acid, HCI, instead of nitric acid in this experiment, thus forming MgCI2 rather than MgO as a product. What numerical effect will this ...
October 18, 2011

Chemistry
What does my professor mean by this? Given A, Z for an atom, calculate the number of protons, neutrons and electrons in a neutral atom.
October 16, 2011

History
thanks ;)
October 4, 2011

History
I need to think of some political, social, and economic issues of the late 19th century. I'm a little confused because some things can go in more than one category, like Labor laws could be all 3, right? Would women's and blacks right to vote be political or social?
October 4, 2011

Zoology
How will a small gene pool effect gene variabilty? Genes will be more varied due to inbreeding, right? But I feel like there's more to that answer. Hopw would this affect a populations ability to survive in changing environments?
September 28, 2011

Legal Studies URGENT
Hi beautiful people I need help incorporating the Police Powers and Responsibilities Act OR the Queensland Criminal Code into an argument about victimless crime. My two issues are currently the role of paternalism in the legal system and at what point the law has the right to...
September 14, 2011

Legal Studies: Queensland/Australia
Hi beautiful people I need help incorporating the Police Powers and Responsibilities Act OR the Queensland Criminal Code into an argument about victimless crime. My two issues are currently the role of paternalism in the legal system and at what point the law has the right to ...
September 12, 2011

math
If a car is speeding down a road at 40 (mph), how long is the stopping distance compared to the stopping distance if the driver were going at the posted speed limit of 25 ? Express your answer as a multiple of the stopping distance at 25
September 8, 2011

AP chem
I got 83.8%. close enough. just make sure not to round your values until the very end (keep them in your calc).
September 6, 2011

Legal Studies
Thank-you so much for all this detailed information. I really appreciate this :). I managed to get my draft in (hence the urgent) but I will use these links in my final. Thanks a heap, XD
September 5, 2011

Legal Studies
Hi beautiful people! I need help finding statistics on the rates of incarciration/fines or other punishments for person convicted of victimless crime in Australia. Preferably Queensland. This is urgent, I simply cannot find the information and I would REALLY appreciate your ...
September 5, 2011

Chemistry
Which contain 3 significant figures and no others? 1. 326.0 2. 0.00310 3. 46,900 4. 1,070 5. 0.020 Isn't there more than one correct answer? Thank You
August 30, 2011

Legal Studies
Hi beautiful people! I'm trying to find good articles on the ethics of victimless crime in law. I'm struggling a bit and I was wondering if any of you knew of some good ones? I went to my state library and found some books and the journals I access don't seem to ...
August 22, 2011

Economics
Thanx XD
August 22, 2011

Economics
Thanks for these links - they'll really help me revise the Ancient and English units :) Do you know any websites that give essay topics?
August 22, 2011

Economics
Hi beautiful people! I'd like to know a good website where I can get practise essay topics for economics. I have to write a extended written response to stimulas exam soon and as this is a weakness I'd like to find some practise topics. Its on the aging population but ...
August 22, 2011

wbnuwhui
First off, the subject would be English or Grammer. Secondly what is with the (points:1)? Is this an exam? Try reading each one out. Do the pauses sound natural? The option that flows most naturally would probably be the right one. See if you can work it out :P
August 19, 2011

General: Exam help
Hi Is there anyway that I can plan extended written responses? Where you write a response to source material essay under exam conditions. I struggle with them and my teacher told me I need to learn, but he hasn't really taught us.:) What is the best way to do them? Thanks :)
August 19, 2011

Calc 2
Use a graphing utility to graph the polar equations and find the area of the given region. Common interior of r = 12 sin(2θ) and r = 6
August 15, 2011

Writeteacher
Hi Writeteacher, would you mind looking at my question below? Thanks Em ps> thanks for all your help so far
August 9, 2011

In-class presentation URGENT history
Never mind, I HAVE found a way to be innovative. I'll have a photo of the then president of the United States on a screen. I'll ask him why he signed NATO. I will edit audio of him speaking to create a 'reason'. Then I'll "talk" to Kruschev. I ...
August 9, 2011

In-class presentation URGENT history
Hi I didn't mean to reject Writeachers idea's, I'm sorry. I really would like to do something different for my presentation and I don't feel that a powerpoint could really fulfill the criteria. I did have a look at the links Writeteacher gave me but I didn'...
August 9, 2011

In-class presentation URGENT history
Hi Look, I'm stuck. I've been trying to get an idea all week. The last thing that I want to do is use a powerpoint as my visual aid. In fact i've removed it from even being considered. At one point I thought about doing a video confrence or asking people-on-the-...
August 9, 2011

In-class presentation (history)
Hi Look, I'm stuck. I've been trying to get an idea all week. The last thing that I want to do is use a powerpoint as my visual aid. In fact i've removed it from even being considered. At one point I thought about doing a video confrence or asking people-on-the-...
August 9, 2011

Modern History- Oral Assignment
Hi I'm doing an assignment on the Cold War. Specifically the role the Warsaw Pact and Nato played in increasing tensions. My problem is that it is a multimodal, so I need to present a speech and back it up visually. I don't want to do a powerpoint or something boring. ...
August 8, 2011

Calc 2 taylor series
use the definition of a taylor series to find the Taylor series (centeredat c) for the function. f(x)= 7/x c=1 so what is f(x) as n goes from 0 to infinity?
July 31, 2011

English/Film and Media studies
Hi My assignment is to talk about a documentary that doesn't exist. We had to pretend to create one and one of the things we need to discuss is our shot construction so everything from lighting, location to shot sizes. Then we need to talk about voice overs and sound ...
July 19, 2011

History URGENT reflecting
With my czechslovakian I think its portraying the Kulaks as vicious murderers that shouldn't be trusted even if they look nice and jolly. I think it was used to garner support for dekulakisation. The date is a 'circa' date so it might have been used to fuel hatred ...
June 15, 2011

History URGENT reflecting
Its a czechslovakian cartoon depicting a kulak seeming to proudly lift a russians chin but the shadows show him strangling him. The second is a Herblock pulitzer winner - the grim reaper greating Stalin saying 'you were always a great friend of mine, Joseph'
June 15, 2011

History URGENT reflecting
Hi What is a general way to reflect on an cartoon? I have some rough ideas like talking about perspective of the artist and the portrayal but I'm not sure if i'm missing something. Thanks!
June 15, 2011

Grammer
Hi Do I say: Berry production affected more than fifteen families or Berry production effected more than fifteen families Thanks ps. when do I use which? I'm confused.
June 14, 2011

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