Questions Asked on February 15, 2009

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. Only 94% of the intensity of
1. 6 answers
2. asked by Delli
3. 6,256 views
Use Henry's law to determine the molar solubility of helium at a pressure of 1.5 atm and 25 degrees celsius .this is what I
1. 3 answers
2. asked by reese
3. 3,514 views
0.10 M methylamine (CH3NH2)kb= 4.38e-4 calc the percent ionization so i did the ICE table to find that x=6.26e-3 and then i
1. 3 answers
2. asked by Spencer
3. 3,482 views
What is the original molarity of a solution of ammonia whose pH is 11.11okay i tried to convert to pOH- so i got 2.89 and then
1. 1 answer
2. asked by Jason
3. 3,430 views
calculate the following, expressing the answer in scientific notation with the correct number of significan figures:(8.86 + 1.0
1. 1 answer
2. asked by y912f
3. 2,333 views
how do i do thisA force of 230 N applied on a hydraulic lift raises an automobile weighing 6500 N. If the applied force is
1. 3 answers
2. asked by y912f
3. 1,861 views
¿Qué piensas?1. ¿A ti te gusta pasar un rato con los amigos? Sí, me gusta pasar un rato con los amigos. 2. ¿Qué te gusta
1. 3 answers
2. asked by Larry
3. 1,853 views
Resources are being used efficiently when1. scarcity is not longer an issue 2. they are also used equitably 3. every opportunity
1. 2 answers
2. asked by Drake
3. 1,718 views
For the reaction of hydrazine (N2H4) in water, Kb is 3.0 10-6.H2NNH2(aq) + H2O(l) H2NNH3+(aq) + OH -(aq) Calculate the
1. 1 answer
2. asked by Lori
3. 1,622 views
please check these answers for meWhen an object is moving with uniform circular motion, the centripetal acceleration of the
1. 1 answer
2. asked by teamjakeward
3. 1,618 views
Hi there, I need help on my homework for chemistry and I do not understand the step on how to work this problem out. Please help
1. 2 answers
2. asked by Mai
3. 1,472 views
okay so im doing pre lab questions on reaction ratesI have a chart labeled effects of varying concentration in reaction #1 flask
1. 2 answers
2. asked by Anna
3. 1,382 views
A block of iron is transported to the moon.Which of the following is true?Both the mass and weight remain unchanged Both the
1. 4 answers
2. asked by Dee
3. 1,251 views
1) A Motor Company has purchased steel parts from a supplier for several years and has found that 10% of the parts must be
1. 1 answer
2. asked by BEARHUG
3. 1,190 views
I keep trying to post a question about chemistry and the site keeps telling me that there is an error because I am trying to put
1. 5 answers
2. asked by Sadie
3. 1,124 views
A market has the following demand and supply equations:Qd = -50P + 1000 Qs = 150P - 400 Which of the following statements is
1. 1 answer
2. asked by SadBob
3. 1,098 views
I need help on this homework problem and I do not understand how to work on it. Please help me with this problem.The
1. 3 answers
2. asked by Mai
3. 1,071 views
write down the uncertainty in the volume of the cylinder that you calculated in part 4 of the error analysis (i got 3.36*10^-2).
1. 1 answer
2. asked by Anna
3. 1,046 views
Aluminum cookware is reffered ti as "anodized aluminum". The anodizing process puts a layer of aluminum oxide on the aluminum,
1. 2 answers
2. asked by Stacey
3. 1,038 views
Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate
1. 3 answers
2. asked by reese
3. 1,032 views
A projectile is fired with an initial speed of 32.5 m/s at an angle of 61.4° above the horizontal. The object hits the ground
1. 1 answer
2. asked by JJ
3. 1,030 views
What are current United States changes to policies concerning the treatment of Muslim and Arabic members of society?
1. 1 answer
2. asked by Joy
3. 992 views
If the price of a good is low,a. firms would increase profit by increasing output. b. the supply curve for the good will shift
1. 2 answers
2. asked by SadBob
3. 943 views
please check these for meWhich of the following is not a fluid? a. carbon dioxide b. hydrogen c. seawater d. wood D Which of the
1. 3 answers
2. asked by teamjakeward
3. 922 views
When 50.0mL of 0.100M NH3 (Kb=1.8x10^-5) solution is mixed with 20.0mL of of 0.250M HCl solution, what is the pH after reaction?
1. 1 answer
2. asked by Kearstyn
3. 854 views
I need some help with my radical equations. I would really appreciate some aassistance.
1. 6 answers
2. asked by George
3. 831 views
In Geography i am learning about the River Tees.for my homework i need to do a project.The questions i need to answer are:- Q 1
1. 4 answers
2. asked by Amy
3. 818 views
What characters in Lord of the Flies had physical defects? I couldn't think of any, unless you can't being nearsited (Piggy) as
1. 2 answers
2. asked by Rosalyn
3. 812 views
2. Calculate the volume for the following object If you know that the object has a mass of 24 grams and the density is 12 g/ml.
1. 3 answers
2. asked by Ben
3. 795 views
Given: Two teams of children are well-matched, and they pull on the rope with exactly the same force. They have placed a 65n
1. 3 answers
2. asked by Joshua
3. 771 views
Economists believe that resources should be used as efficiently as possible to1. achieve society's goals 2. eliminate scarcity
1. 2 answers
2. asked by Bigboy2
3. 764 views
Could you please check these answersI don't understand #4 could you give me a link or you can try to help me. Thanks: 1.
1. 0 answers
2. asked by Gabby
3. 762 views
The following contingency table of frequencies is based on a five year study of fire fatalities in Maryland. For purposes of
1. 1 answer
2. asked by Stuart
3. 748 views
i'm really lost here. please show me how to solve thisA 0.10 kg piece of copper at an initial temperature of 94 degrees C is
1. 3 answers
2. asked by teamjakeward
3. 738 views
I'm writing a story about a girl who loves a boy that barely notices her and her best friend is trying to set them up even
1. 5 answers
2. asked by Sage
3. 714 views
I'm having trouble getting the answer for the 2nd and 3rd questions.# A soccer ball is kicked from the ground. When it reaches a
1. 4 answers
2. asked by rmj
3. 688 views
standard form(4.98x10^110)x(1.82x10^82)
1. 1 answer
2. asked by Anonymous
3. 687 views
When 50.0mL of 0.100M NH3 (Kb=1.8x10^-5) solution is mixed with 20.0mL of of 0.250M HCl solution, what is the pH after reaction?
1. 1 answer
2. asked by Kearstyn
3. 683 views
A machine is either working (state 1) or not workind (state 2). If it is working one day the probability that it will be broken
1. 1 answer
2. asked by Sally
3. 668 views
you are doing a six day tour ofthe coast of south africa. you fly from jhb to cape town in cape town you join a luxury bus tour
1. 3 answers
2. asked by keneilwe
3. 663 views
please tell me if these are correctA track star in the long jump goes into the jump at 12 m/s and launches herself at 20.0 deg
1. 0 answers
2. asked by y912f
3. 627 views
For a given mass of solute per liter of solution, the larger to formula mass, the lower the osmotic pressure. Osmotic pressure
1. 0 answers
2. asked by GK
3. 622 views
One suggested way to foster both prosocial behavior and self-esteem is the use ofA. reasoning B. time-out C. verbal aggression
1. 5 answers
2. asked by Brenna
3. 617 views
We are currently studying significant digits/figures. I was asked to add 150 ml with 76.9 ml, plus 209 ml plus 0.036 ml. The
1. 1 answer
2. asked by Coralie
3. 616 views
you are doing a six day tour ofthe coast of south africa. you fly from jhb to cape town in cape town you join a luxury bus tour
1. 2 answers
2. asked by keneilwe
3. 614 views
I am having a problem with this problem from my homework. I need some help on this problem.Microwave ovens work by irradiating
1. 1 answer
2. asked by shylo
3. 612 views
I'm trying to come up with a title for my essay and it can't be more than four words? The topic was "war as a social disease".
1. 12 answers
2. asked by Michele
3. 609 views
¿Qué peiensas?1. ¿Tienes pelo castaño? 2. ¿Cómo son tus amigos? Not quite sure what these questions would translate to.
1. 2 answers
2. asked by Larry
3. 601 views
In order to learn to respect others and devlop healthy relationships, children need toA confront people with different idesa. B.
1. 3 answers
2. asked by Brenna
3. 599 views
How and why did Europeans perceive the peoples and resources of the New World? How and why did Native Americans perceive the
1. 1 answer
2. asked by tracy
3. 597 views
Why is the diameter of the afferent arteriole to the glomerulus larger than the efferent ateriole?Explain one example of a
1. 0 answers
2. asked by Shabida
3. 594 views
E X E R C I S E S Exercise 11.1The child and family government benefits seminar was such a success that Advocates for Children
1. 0 answers
2. asked by monique solano
3. 585 views
Using the below information calculate the conditional probability of C given each of the age groups, or P(C/D), P (C/E), etc.
1. 0 answers
2. asked by Stuart
3. 585 views
Is this the correct abbreviation for instructor (instr)
1. 2 answers
2. asked by Carly
3. 580 views
According to the formula,Bond price= y/r so bond price has a inverse relationship with interest rate.i.e. interest rate
1. 2 answers
2. asked by David
3. 574 views
GoodsComputer Wine x Y Qc Qw Country mil mil gal US 60 240 France 33 1/3 200 Assuming that without trade, -the US Produces 30
1. 1 answer
2. asked by SadBob
3. 570 views
Another confusing significant digit problem. I added 36.6 and 2.4, and divided the result by 4.803. The book says the answer is
1. 2 answers
2. asked by Coralie
3. 547 views
Can someone Please heip me with my Punctuation and make sure this process paragraph makes senes. Thank you!You can learn how to
1. 2 answers
2. asked by Angie
3. 539 views
How does will power not change the orignial conflict "war as a social disease versus non-conformity".
1. 3 answers
2. asked by Michele
3. 531 views
If you need to you may want to read the article that says, "City goes hungry" again because that's what I wrote about. If you
1. 2 answers
2. asked by Valentine's sweetheart
3. 518 views
What does it mean to vary the sentence pattern within a written work?
1. 1 answer
2. asked by NICK
3. 512 views
my question is:Suppose you want to add a sprinkler system, and the location of one section of the sprinkler system le can be
1. 1 answer
2. asked by A. W.
3. 503 views
ionic compounds for the following:calcium chloride calcium oxide sodium oxide sodium carbonate aluminium carbonate calcium
1. 1 answer
2. asked by Alpana
3. 500 views
Disciline refers to behaviors that areA. expected. B. self-regulated. C. harsh D. punitive. my answer is B. CAN YOU TELL ME IF I
1. 2 answers
2. asked by Cindy
3. 495 views
How do I write an equivalent expression using radical expressions for this:(a^2b^2)^1/9
1. 1 answer
2. asked by Amy
3. 482 views
How does J.B Priestly encourage the audience to agree with the Inspector’s view that “We are members of one body” as
1. 1 answer
2. asked by Edna
3. 479 views
I've removed your post about a complex business scenario because it presents no idea about how you'd like us to help you.Please
1. 0 answers
2. asked by Ms. Sue
3. 478 views
Using the information presented calculate the following probabilities:Blood Alcohol Level of Victim A B C Age 0.00% 0.01-0.09%
1. 0 answers
2. asked by Stuart
3. 476 views
1) A man places a ladder against a wall. He then climbs up the ladder. Briefly describe the forces acting on the man, on the
1. 1 answer
2. asked by jess
3. 474 views
I need someone to check this over thanks. I'm in 9th grade could you please give me a letter grade thanksCity Goes Hungry
1. 2 answers
2. asked by Valentine's Sweetheart
3. 473 views
A projectile is fired with an initial speed of 32.5 m/s at an angle of 61.4° above the horizontal. The object hits the ground
1. 1 answer
2. asked by JJ
3. 471 views
J'adore = i loveJ'aime = i like ????????????? Je n'aime pas = I don't like Je déteste = I hate what is a neutral opinion?
1. 1 answer
2. asked by valerie
3. 468 views
How does the great penitentiary rivalry continue to shape and influence american thinking about the prison systems purpose?
1. 1 answer
2. asked by lisa
3. 459 views
Are some of the people on this site teachers? How do they have time to answer our questions? Don't they have to grade papers and
1. 2 answers
2. asked by Ben
3. 458 views
How is polonium-210 used in anti-static products? Why is its presence in commercial products (eg. anti-static hair brushes) a
1. 2 answers
2. asked by Amanda
3. 449 views
How can you prove that acceleration due to gravity is the same in a resting and moving frame?
1. 2 answers
2. asked by Christina AAAA
3. 448 views
For every 100 cars that enter the entersection from A, 30 cars head towards B, 40 cars head toward C, and 30 cars head towards
1. 3 answers
2. asked by Carol
3. 446 views
[x+2] [x+2] [x+3][+p/3] [x-3] [x+3] [x+9] [3x+xy-2xy][x+2y] [2x-5y][3x-2xy+7y] [2x-y]-[x+y] [0.59-0.3b][0.25-ab+0.5b]
1. 1 answer
2. asked by keneilwe
3. 438 views
Calculate the acceleration of a Porsche when he goes from 0 miles/hr to 40 miles/hr in 5.6 seconds.(should I convert 40 miles
1. 1 answer
2. asked by Tammy
3. 438 views
Which one of these sentences uses pronoun correctly?a. Please give Paul and I your undiv ided attention. b. Jacob and me are
1. 1 answer
2. asked by Tony
3. 435 views
Why are coral reefs generally limited in distribution to shallow marine waters?
1. 1 answer
2. asked by Kate
3. 427 views
Can you suggest good topic/s for my concept paper in PoliScie? Help me please. Thanks!
1. 1 answer
2. asked by Phoenix
3. 426 views
d) Suppose you want to add a sprinkler system, and the location of one section of the sprinkler line can be described by the
1. 1 answer
2. asked by A. W.
3. 426 views
how do you compute the uncertainty in the volume of a block?
1. 1 answer
2. asked by Anna
3. 426 views
how do Cnidarians move?
1. 1 answer
2. asked by Anonymous
3. 425 views
Solve using the addition principle:2x+9>x+14, x+9-9> 14 - 9, x>5 is this right?
1. 2 answers
2. asked by A. W.
3. 422 views
Is it true majoring in history is a non-traditional field for women?
1. 2 answers
2. asked by Rosalyn
3. 418 views
How does a scientist tell if a valcanoe is active or inactive and what is the criteria
1. 4 answers
2. asked by dianne
3. 414 views
how do you integrate sin (x^2) dx?
1. 3 answers
2. asked by Laura
3. 410 views
how do i find the Volume of Atomswithin Unit Cell in(Å^3)? I think it has something to do with avogadros number but i do not
1. 1 answer
2. asked by jerry
3. 403 views
can anyone show me how to do this?A container of gas is at a pressure of 3.7 * 10^5 Pa. how much work is done by the gas if its
1. 1 answer
2. asked by y912f
3. 400 views
why is photosynthesis critically important?
1. 4 answers
2. asked by anonymous
3. 397 views
is it hopeful that we will come out of this recession
1. 2 answers
2. asked by jerson
3. 386 views
how do you integrate 30x^2/((x-2)(x+3)(x-5)) using partial fraction decomposition
1. 1 answer
2. asked by Lauren
3. 382 views
How a bill becomes a law?
1. 1 answer
2. asked by Stacey
3. 378 views
(2x/2x) + 1== 1?
1. 12 answers
2. asked by Chopsticks
3. 376 views
are many people happy with the stimulus package
1. 1 answer
2. asked by jerson
3. 373 views
Why do organisms with the widest limits of tolerance, for most factors, will be the widest distributed?
1. 2 answers
2. asked by ecology
3. 370 views
Bad thing happened, you may remember my other post about what does La Route du Rhum mean but anyway... I was at the library and
1. 0 answers
2. asked by Micheal
3. 366 views
why is water essential to all life?
1. 2 answers
2. asked by Susie
3. 364 views

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