Saturday

April 18, 2015

April 18, 2015

Number of results: 19,807

**AP physics**

An object undergoes a displacement x while a force F acts on it. If F does zero work, then the angle between F and x must be
*December 11, 2014 by ali *

**Algebra 2**

Find all of the zeros of each function 1. q(x)=2x^3-17x^2+90x-41 2.x^3-5x^2-7x+51 3.x^4-9x^3+24x^2-6x-40 Please show work!!! I want to learn how to do it.
*January 17, 2015 by Alicia*

**MATH**

For the following system of equations, what is the x-value of the solution? -x + 2y = 6 6y = x + 18 A. -18 B. 0 C. -6 D. 3 Confused? Still trying to work it out. Please help! Thanks
*January 20, 2015 by SkatingDJ*

**social studies**

in what economic sector is a migrant worker most likly to find work in arbia and iraq?
*February 25, 2015 by Hannah*

**Chemistry**

Use your balanced equation to calculate the volume of 0.12 M Na3PO4 to stoichiometrically react with the 3.0 mL of Co (NO3)2. Show your work.
*March 1, 2015 by Chem*

**7th Grade Math.**

I have been trying to work this out but just cant. Find the function rule. X -2 -1 0 1 2 Y 9 4 -1 -6 -11 Thanks, ~JH
*March 3, 2015 by Jarrod*

**4th grade Science**

explain how your circulatory and immune systems work together to keep you healthy. Pleaseeeee help!!!!!!!!!!!!!!!!!!!!!!!!!!!!
*March 9, 2015 by Yellow*

**Life orientation **

Name and explain in detail four organizations/agencies that work to address human violations?
*March 19, 2015 by Tumelo koloti*

**Homeroom work**

ON a multiple choice question with 4 options, what are your chances of guessing correctly if you eliminate two answers? 10% 25% 33% 50% Is it 50%?
*March 22, 2015 by Jae*

**pre - CALCULUS**

Find the indicated sum. Show your work. 4 k=1 (-1)^k(k+11) ￼Inbetween the 4 and k , Theres a backwards 3 sign
*April 13, 2015 by Ciara*

**chemistry, plz check work**

NH3+H2S-->NH4HS <-- Kc=400 at 35 Celsius what mass of NH4HS will be present at equilbrium? My work NH3 H2S NH4HS initial 2 mol 2 mol 2 mol change -x -x +x equilibrium 2-x 2-x 2+x Kc=[NH4HS]/[NH3][H2S] 400=(2+x)/[(2-x)(2-x)] 400=(2+x)/(4-4x+x^2) 1600-1600x+400x^2=2+x 1598...
*March 2, 2009 by Anonymous*

**Improving your writing**

I hope I got it this time...Is the use of my semi colons and colon correct ? For the past three months there seems to be an ever-growing problem at our company of DMD Medical Supplies: The quality of work has been poor; the morale of various employees has been brought down; ...
*February 3, 2012 by Shawna*

**physics ( disregard last post)**

hey bob, this question average force of friction thanks a lot. i only don't get one part. Now, set the potential energy of the rubber band (stretched x cm) equal to the work done on friction. does it matter how much i stretch it and what does it mean when "You can measure k ...
*June 12, 2007 by James*

**math**

•Post a response to the following: Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. Did you reached 1 for an answer? You should have. How does this number game ...
*October 1, 2008 by Anonymous*

**Algebra Assignment**

Please check my work on this part of the assignment. Medical x-rays, with a wavelength of about 10^-10m, can penetrate completely through your skin. a. ultraviolet rays, which cause sun burn by penetrating only the top level of skin, have a wavelength about 1000 times the ...
*January 29, 2014 by Anonymous*

**Economics**

1. An economy's production possibilities frontier is also its consumption possibilities frontier. a. under all circumstances b. under no circumstances c. when the economy is self-sufficient d. when the rate of tradeoff between the two goods being produced is constant 2. The ...
*September 9, 2012 by Eric*

**English**

Can you please tell me if these sentences are possible? Thank you very much in advance. 1) Are the following adjectives related to weather possible: What's the weather like? It's wet/damp. It's foggy/hazy/misty (are they synonyms?) It's boiling/sweltering/muggy/close It's ...
*April 25, 2010 by Franco*

**math**

I have a question I have been working on since yesterday and I am not making this up. I couldn't get the right answer. If sin theta = -2/3, which of the following are possible? A: cos theta= -the sqr rt of 5/3 and tan theta =2/3. B: sec theta = 3/the sqr rt of 5 and tan teta...
*November 21, 2013 by lisa*

**World History (Ms. Sue)**

Do you agree with that which I have written? "Like their fictional characters, Romantics were misunderstood or rejected by the society around them. Nevertheless, they deeply valued ordinary people and their individual experiences in everyday life. Romantic art, music, and ...
*November 12, 2014 by Victoria*

**Physics**

A flea is able to jump straight up about 0.49 m. It has been said that if a flea were as big as a human, it would be able to jump over a 100 story building! When an animal jumps, it converts work done in contracting muscles into gravitational potential energy (with some steps ...
*September 22, 2008 by Jenny*

**Physics(Please respond)**

A system does 210 J of work on its environment and gains 80.6 J of heat in the process. Find the change in the internal energy of (a) the system and (b) the environment. Physics(Please respond) - Elena, Thursday, June 21, 2012 at 2:33am ÄU = Q - W Where ÄU is the change in the...
*June 21, 2012 by Hannah*

**Physics - KE/Inertia**

The rigid body shown in Figure 10-66 (it is a triangle with the upper mass = to M and the bottom two corners/masses equal to 2M. The bottom side length equals .70 cm with point P in the middle of the side and the other two sides equal .55 cm)consists of three particles ...
*March 26, 2007 by COFFEE*

**proofread**

Instructions for this essay assignment (relection paper). For this paper, you should think about what you want to get out of your practicum experience. The 90 hours you spend at this site should be an opportunity not only for you to give something to the organization at which ...
*February 4, 2008 by Bizzy*

**Chemistry**

Please help! I have spent hours trying to work these three problems. How many grams of solid barium sulfate form when 27.1 mL of 0.160 M barium chloride reacts with 53.4 mL of 0.065 M sodium sulfate? Aqueous sodium chloride forms also. I have converted the 27.1mL to .0271L, ...
*September 21, 2013 by Anonymous*

**Physics HELP!!!!!!!!**

The pressure and volume of a gas are changed along a path ABCA in the figure. The vertical divisions on the graph represent 4.0 x 10^5 Pa, and the horizontal divisions represent 4.5 x 10^-3 m3. The diagram is a upright rectangle divided into small squares (8 up and 6 across). ...
*April 22, 2007 by Mary*

**Math**

t noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 16 knots and ship B is sailing north at 22 knots. How fast (in knots) is the distance between the ships changing at 7 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.) Note: Draw ...
*October 15, 2009 by Salman*

**Calculus**

At noon, ship A is 50 nautical miles due west of ship B. Ship A is sailing west at 20 knots and ship B is sailing north at 16 knots. How fast (in knots) is the distance between the ships changing at 6 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.) Note: Draw ...
*November 22, 2009 by Bobby*

**someone correct my work please? fun, fun chemistry**

Okay. I'm very, very confused. The initial question is: predict the products of the electrolysis of a 1 mol/L solution sodium chloride. This is my work: The four different possible equations are: 2H2o + 2e- -------> H2 + 2OH- (V= -0.83) O2 + 4H+ + 4e- -------> 2H2O (V= 1...
*January 30, 2007 by Rienna*

**Chemistry**

Alexander, who weighs 180 lb, decides to climb Mt. Krumpett, which is 5570 m high. For his food supply, he decides to take nutrition bars. The label on the bars states that each 100-g bar contains 10 g of fat, 40g of protein, and 50 g of carbohydrates. In this problem you do ...
*January 26, 2010 by Kathy*

**Science**

Name one physical property and one chemical property that you could use to distinguish between water and gasoline. Write down, on a sheet of paper, three or four physical properties. Place them in a column. On another column write three or four physical propertis of water. ...
*March 17, 2007 by Lisa*

**physics HELP**

A 7450 kg satellite has an elliptical orbit, as in Figure 6.9b. The point on the orbit that is farthest from the earth is called the apogee and is at the far right side of the drawing. The point on the orbit that is closest to the earth is called the perigee and is at the far...
*January 26, 2011 by maria*

**Physics**

A 7300-kg satellite has an elliptical orbit, as in the figure. The point on the orbit that is farthest from the earth is called the apogee and is at the far right side of the drawing. The point on the orbit that is closest to the earth is called the perigee and is at the far ...
*October 3, 2014 by Steven*

**Physics **

A 7300-kg satellite has an elliptical orbit, as in the figure. The point on the orbit that is farthest from the earth is called the apogee and is at the far right side of the drawing. The point on the orbit that is closest to the earth is called the perigee and is at the far ...
*October 3, 2014 by Steven*

**Chemistry- please check my work**

Question: The following equilibrium was studied by analyzing the equilibrium mixture for the amount of HCL produced. LaCl3(s)+ H2O(g) goes to LaOCl(s)+2HCl(g). A vessel whose volume was 1.25L was filled with 0.0125 mol of lanthanum (III)chloride and 0.0250 mol H2O. After the ...
*February 25, 2009 by eliz*

**WorldHistory**

Check? What were a peasants obligations to the lord of the manor? The peasant's obligations to the Lord of the Manor were based mostly on farming work. The peasant would work large proportions of their day on the land of their Lord, the rest of their day would be put toward ...
*May 3, 2013 by _*

**Socials**

Would abolishing child labour be an effective strategy to improve the lives of children? Why or Why not? I don't know the answer to this questions because I kind of think that this would be a good stragety but at the same time I don't. I think that it would be good if child ...
*November 28, 2009 by Sara*

**physics**

1. How far (in meters) must a 600 kg pile driver fall, if it is to do 14000 J of work? 2. A spring whose spring constant is 150 N/m is compressed 0.800 m. What speed (in meters/second) can it give to a 0.600 kg ball when released? 3. A 550 N crate rests on the floor. How much ...
*July 7, 2010 by Ricky*

**physics**

1. How far (in meters) must a 600 kg pile driver fall, if it is to do 14000 J of work? 2. A spring whose spring constant is 150 N/m is compressed 0.800 m. What speed (in meters/second) can it give to a 0.600 kg ball when released? 3. A 550 N crate rests on the floor. How much ...
*July 7, 2010 by Ricky*

**Chem**

Nitric acid can be prepared by bubbling dinitrogen pentoxide into water. N2O5(g) + H2O -> 2H+(aq) + 2NO3-(aq) a) How many moles of H+ are obtained when 1.50 L of N2O5 at 25 degrees C and 1.00 atm pressure is bubbled into water? b) The solution obtained in (a) after reaction...
*January 1, 2007 by Dave*

**physics**

a.)At rest, a car's horn sounds at a frequency of 410 Hz. The horn is sounded while the car is moving down the street. A bicyclist moving in the same direction with one-third the car's speed hears a frequency of 381 Hz. What is the speed of the car? b.)Is the cyclist ahead of ...
*August 5, 2007 by sanchi*

**Writing**

Posted by Anonymous on Tuesday, August 27, 2013 at 7:10pm. Please give feedback and grade. Prompt:"Nothing in the world can take the place of Persistence. Talent will not; nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a...
*August 27, 2013 by Anonymous*

**Physics**

A dock worker applies a constant horizontal force of 79.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 11.0 m in the first 6.00 s. What is the mass of the block of ice? *I notice two very common ...
*October 1, 2006 by James*

**Math....Please help I have a deadline for tonight!**

Use the geometric sequence of numbers 1, 1/3, 1/9 , 1/27… to find the following: b) Using the formula for the sum of the first n terms of a geometric series, what is the sum of the first 10 terms? Carry all calculations to 6 decimals on all assignments. Answer: Show work in ...
*November 4, 2006 by Vianna*

**memo or letter**

informative message that tells one of your colleagues at work or one of your friends how to enroll at school. which woul dbe the best way to send it I am thinking a memo am I wrong yep I think that is correct! yep I think that is correct! What is wrong with an oldfashioned ...
*August 3, 2006 by april*

**math help**

Suppose you are managing 25 employees, and you need to form three teams to work on three different projects. Assume that all employees will work on exactly one team. Also, each employee has the same qualifications/skills, so any employee can serve on any team. The number of ...
*December 7, 2010 by aileen*

**Math**

Suppose you are managing 25 employees, and you need to form three teams to work on three different projects. Assume that all employees will work on exactly one team. Also, each employee has the same qualifications/skills, so any employee can serve on any team. The number of ...
*December 15, 2010 by David*

**English (MLA format)**

Hi, I was wondering what was the most proper way to incorporate a quote from a piece of work that is a quote from another piece of work. If this makes no sense... in my paper I'm quoting a quote from a document that we have discussed in class. Within this document the author ...
*September 26, 2011 by John*

**Help**

President Bush signed the new Bankruptcy Reform Act into law around April of 2005. This law went into effect in October of 2005. This means that filing a chapter seven bankruptcy is not as easy as it once was. Let’s get on the Internet and do some research to find out: How did...
*June 14, 2006 by Anonymous*

**Algebra 1**

3r-5s=-35 2r-5s=-30 multiply equation 2 by -1 then add the two equations. s will cancel and you can solve for r. Post your work if you need further assistance.
*January 18, 2007 by Candice*

**math**

Find the second derivative. y = sqrt(3x+4) I will be happy to critique your work. We don't do it for you. Thanks. Please post under one name. Thanks. who are u?
*February 20, 2007 by abc*

**Calc Help**

q=(1000/p+1)^2 - 1 find q' Please help. Question on review sheet. I will be glad to help you, or critique your work. What do you think the way to solve it is>
*May 1, 2007 by Evan*

**math**

my fith grader has a work sheet on stem and leaf plots. There is no workbook or examples that were given and i have no clue. Can you help me?
*August 29, 2007 by marie*

**human resources management**

how emotional and physical aspects of a person’s life can influence the employee’s effectiveness in the work environment
*October 26, 2007 by Lisa*

**Help With Math**

Using the quadratic formula to solve equations. -12^2 + 12 x-9 = -7x^2 10x^2 + 5x + 12 = 0 6x^2 + 12x = - 1 11x^2 - 7x -1 = 0 2x^2 -18x + 16 = 0 Can u show work to help me out
*November 13, 2007 by Monte'*

**Calculus**

If M is 30% of Q, Q is 20% of P, and N is 25% of P, then M/N equals which of the following? (a) 3/250 (b) 3/25 (c) 1 (d) 6/5 (e) 4/3 When I work this problem I keep getting 6/25, but that is not one of the choices. Any help would be greatly appreciated.
*November 28, 2007 by Arnold*

**Math**

How would you solve this for x using logarithims? I tried but when I plugged my answer for x back into the equation it didn't work at all. 4^2x = 9^x-1
*January 15, 2008 by Anonymous*

**government**

a staff agency a. supports other workers b. runs programs c. regulates businesses d. does business-like work c
*January 16, 2008 by jere*

**physics**

a 1200-kg automobile travels at a speed of 90-km/h (a)what is the kinetic energy? (b) what is the net work that would be required to bring it to a stop?
*January 26, 2008 by melissa*

**chemistry**

Under what conditions of temperature and pressure do you think that the gas laws would work best? List specifics.
*January 29, 2008 by Cindy*

**Physics**

How long does it take a 19 kW steam engine to do 6.8x10^7 of work? I have no idea how to solve this... Would someone please help?
*January 29, 2008 by Cassidy*

**Algebra II**

How do I work the following problem? I cannot find an example in my book that shows how to divide when there are two variables on top. 4-2i/7+3i Thanks for your help today.
*February 3, 2008 by Lucy*

**statistics**

What is an example of two events that are neither disjoint nor independent? (I have no idea how that would even work)
*February 26, 2008 by Mischa*

**science**

how do water powered mills work???? please help!!!!!!!! due tomorrow only in 5th grade make it not complicated
*March 20, 2008 by carly*

**US History**

Can you please tell me where can I find more info about Hannah Galler, a holocaust survivor: her life and work?
*March 25, 2008 by Jennifer*

**science**

the making of polymers is an example of the category of work done by chemists calledd ________ fill in the answerr. please helpp!
*April 22, 2008 by christina*

**chemistry**

how does band gap energy work? when dealing with voltages and color change from LEDs[depends on phosphorous percentage]
*April 26, 2008 by sara*

** human resources**

Analyze how emotional and physical aspects of a person's life can influence the employees effectivness in the work place
*August 1, 2008 by ebonie*

**Algebra**

I also needed help with this problem to: 8 divided by 4 times 2 - 7 + 3 Again could you please show me the work involved in getting the answer. Thank you.
*August 21, 2008 by Jillian*

**Human resources**

Analyze how emotional and physical aspects of a person’s life can influence the employee’s effectiveness in the work environment.
*October 4, 2008 by Nadia*

**Caculus I**

If f is decreasing and f(20)=10, which of the following must be incorrect? Explain. a. (f^-1)'(20)=-3 b. (f^-1)'(10)=12 how do i work this problem? i'm kind of confused about inverse functions.
*October 19, 2008 by Rob*

**pre cal HELP**

lim (x+x^2)/3x x->0 i need to factor it first then find the limit and the answer is 1/3. I just dont know how to work it out.
*November 12, 2008 by kim*

**english**

fill in the blanks with the correct tense of the verb in the bracket. his hard work----fruit and he won the painting competition.(bear).
*November 13, 2008 by ra ny*

**physics**

What is the minimum work function for a metal for visible light (wavelengths between 400 and 700 ) to eject photoelectrons?
*November 14, 2008 by Velaria*

**english**

how could you translate/explain why oyu like the quote "I haven't failed, I have found 10,000 ways that don't work".
*November 26, 2008 by martha*

**math**

Construct a box-and-whisker plot for the set of numbers.? 0.16, 0.08, 0.27, 0.20, 0.22, 0.32, 0.25, 0.18, 0.28, 0.27 I'm not looking for anybody to my work for me, I just really need some help.
*January 11, 2009 by A.W.*

**Chemistry**

Calculate the volume of 0.6M HNO3 necessary to neutralize 28.55 cm3 of 0.45M KOH. please show work and detail.
*January 15, 2009 by Paige*

**chemistry**

when do you need to use the octet rule for lewis structures and when does it not apply i am confused for N2O4 i cant get the rules to work with the structure
*April 20, 2009 by lyne*

**chemistry**

How many liters of CO2 form at STP if 5.0g of CaCO3 are treated with excess hydrochloric acid? show all your work
*April 24, 2009 by nichole*

**physics**

If a spring is compressed 2.0 cm from its equilibrium position and the ncompressed an addition 4.0 cm, how much more work is done in the second compression than in the first?
*April 28, 2009 by Anonymous*

**economics**

Is it possible for a female only 21 years old and 1 year of work experience to have an income of $92560 US in the 1980s?
*June 7, 2009 by lin*

**history help plz**

Although it put many farmers out of work, the _____ made English farming more productive.
*August 12, 2009 by gabriel*

**math 115**

the question is asking me to divide 4 and 1/5 by 14 and write the results in the simplist form? Can u give me a simular problem and show me how to work it?
*September 5, 2009 by amber*

**history**

with the improvement in transportation and communication, would the original articles of confederation work for all 50 states today? Explain why?
*September 24, 2009 by kate*

**chemisrty**

Under what conditions of temperature and pressure do you think that the gas laws would work best? Please be specific
*September 29, 2009 by Anonymous*

**Physics**

If a 20 kg object fell to the surgace of the Earth from a height of 30m, what would its final velocity be? (work from the energy standpoint)
*October 6, 2009 by Kayla*

**calculus**

Given x+xy+2y^2=6 find the coordinates of all other points on this curve with slope equal to -1/3. Please show work.
*December 10, 2009 by Mark*

**Calculus**

Given x+xy+2y^2=6 find the coordinates of all other points on this curve with slope equal to -1/3. Please show work.
*December 10, 2009 by Lindsay*

**Alberbra**

Please help with graphing a quadratic function. y=(x-1)^2 Got stuck at y=(x-1)(x-1) and p=1, q=1 Which doesn't work, because you can't fix a vertex with one point on a graph.
*January 1, 2010 by Kelly*

**art**

hi i have to write an exploratory study on a designer that influences my work i can't think of any good illustrators or designers any ideas? thanks
*January 7, 2010 by anonymous*

**science**

How do uneven heating of the planets surface and the coriolis effect work togahter to produce global wind patterns
*January 19, 2010 by kayla*

**English**

Thank you for your help. I must go and work on making two bar graphs to support my essay . You have provided me with much help . Thanks !! April
*January 21, 2010 by April*

**algebra**

I rent out 2/5 of my books, give 3 away, buy 9 and now have 27. How many did I start with - I know it's 35 but I can't make the formula work
*January 22, 2010 by TIa*

**Business**

Of the note-taking skills, why would the L-Star system work better for someone if that's how they choose to take notes?
*February 15, 2010 by lynne*

**Algebra**

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 1/5x -1/4 y = 3 2/5x + 1/2y = 2
*March 11, 2010 by Kim*

**business**

What exactly is a discounted cash flow and how does it work? I overheard a conversation at a coffee house, and could not remember what the person said
*April 14, 2010 by Anonymous*

**math**

Every time I do this for an assignment I do it wrong. How does this work. Use lattice multiplication to find the product. 222 × 172
*April 14, 2010 by bwb*

**calc**

f(x)=8cos4x What is the derivative? Im doing online homework and i keep getting an incorrect answer. How do you work out this problem correctly? thanks
*April 26, 2010 by Adam*

**Math**

What is the measure of the point for a star shaped polygon with 8 points and a dent angle of 130 degrees? How do I work this out?
*May 23, 2010 by Anthony*

**accounting**

Would Pastin's approach also work in a merger situation? Look at past mergers to see what worked and what did not?
*June 5, 2010 by ^Tasha*

**Chemistry**

What happens to a 4L volume of gas as you change the pressure from 6 atm to 760 torr? What law was used, and show work
*June 23, 2010 by Kris*