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Questions Asked on October 22, 2010

Find the emf for the cellCr(s) |Cr3+(aq, 0.37 M) || Pb2+(aq, 0.0095 M) | Pb(s). Answer in units of V I don't know what to do
1. 10 answers
2. asked by Someone PLEASE HELP!
3. 4,691 views
A 100-N force has a horizontal component of 80 N and a vertical component of 60 N. The force is applied to a box which rests on
1. 1 answer
2. asked by Chris
3. 4,121 views
For what values of k does the function f(x)=(k+1)x^2+2kx+k-1 have no zeros? One zero? Two zeros?
1. 5 answers
2. asked by Emily
3. 3,917 views
Separation scheme for isolating benzoic acidCould you please show me a separation scheme for isolating benzoic acid from a
1. 1 answer
2. asked by Jessica
3. 3,768 views
Suppose only 75% of all drivers in a certain state regularly wear aseat belt. A random sample of 500 drivers is selected. What
1. 2 answers
2. asked by Dre
3. 3,528 views
Ironman steps from the top of a tall building. He falls freely from rest to the ground a distance of h. He falls a distance of
1. 1 answer
2. asked by Trevor
3. 3,412 views
Martha can rake the leaves in her yard in 2 hours. Her brother can do the job in 8 hours. How long will it take them to do the
1. 2 answers
2. asked by Darlene
3. 3,111 views
16. How much work is done on a bookshelf being pulled 4.00 m at an angle of 35.0„a from the horizontal? The magnitude of the
1. 2 answers
2. asked by michelle
3. 2,666 views
Two blocks are tied together with a string as shown in the diagram.(There is a block on a horizontal incline, its mass is 1.0kg,
1. 1 answer
2. asked by mercedes
3. 2,617 views
Solve:(sec 35 degrees) (csc 55 degrees) - (tan 35 degrees) (cot 55 degrees)
1. 3 answers
2. asked by Audrey
3. 2,451 views
A loaded dogsled has a mass of 400kg and is being pulled across a horizontal, paced snow surface at a velocity of 4.0m/s (N).
1. 3 answers
2. asked by Jane
3. 2,329 views
in biology we are studying taxonomy.we are classifying our organisms by broadest to most specific: kingdom phylum class order
1. 9 answers
2. asked by Ashley
3. 2,318 views
i need help doing this question...a quadratic funtion has these characteristics axis of symmetry: -1 x=3 is the x- int y= 32 is
1. 3 answers
2. asked by priya
3. 2,175 views
The length of Laurie's rectangular swimming pool is triple its width. The pool cover an area of 192 m2. If Laurie swims across
1. 2 answers
2. asked by Anonymous
3. 2,058 views
my question is:why did Aboriginal peoples avoid involvement with the rebellions of 1837? i get the question and I tried
1. 5 answers
2. asked by pkd
3. 1,866 views
1. When a potassium atom reacts with a bromine atom, thebromine atom will a) lose 1 electron and form a positive ion b) lose 2
1. 1 answer
2. asked by Lisa
3. 1,860 views
Estimate the equilibrium constant for the weak base (CH3)2NH, if a 1.59×10-2 M aqueous solution of (CH3)2NH has a pOH 2.58
1. 4 answers
2. asked by Kyo
3. 1,826 views
Which compound forms a colored aqueous solution?a) CaCl2 c) NaOH b) CrCl3 d) KBr i think its Cr because its an transition metal.
1. 1 answer
2. asked by John
3. 1,751 views
Three blocks on a frictionless horizontal surface are in contact with each other, as shown below. A force F is applied to block
1. 0 answers
2. asked by Anonymous
3. 1,750 views
A 435 N box is sliding down a 40 degree incline. If the acceleration of the box is 0.250 m/s^2, what is the force of friction on
1. 1 answer
2. asked by Mercedes
3. 1,644 views
There are a total of 152 foreign language students in a high school where they offer only Spanish, French, and German.You are
1. 1 answer
2. asked by Anonymous
3. 1,638 views
A uniform solid sphere of mass M and radius R is rolling without sliding along a level plane with a speed v = 2.30 m/s when it
1. 2 answers
2. asked by Anonymous
3. 1,625 views
The Constitution establishes rules that the United States government must observe. There are five main principles that form the
1. 1 answer
2. asked by Cheryl
3. 1,599 views
A 325.0-g piece of gold at 427°C is dropped into 200.0 g of water at 22.0°C. (The specific heat of gold is 0.131 J/g°C.)
1. 1 answer
2. asked by Bruce
3. 1,599 views
The average time a visitor spends at the Renzie Park Art Exhibit is 62 minutes. The standard deviation is 12 minutes. If a
1. 1 answer
2. asked by John
3. 1,575 views
2. Explain how the tension force gets transmitted along from one end of a string to the other. Does the amount of force that
1. 1 answer
2. asked by brian
3. 1,528 views
A student weighs out 0.568 g of KHP (molar mass=204g/mol) and titrates to the equivalence point with (36.78 cm cubed which is 3)
1. 1 answer
2. asked by Elleni
3. 1,454 views
Calculate pH of a 1.0 mol L -1 boric acid solution.(Ka(H3BO3) = 5.8 x 10 power -10 Please solve this problem. My computer does
1. 1 answer
2. asked by Elleni
3. 1,418 views
a sample of iron occupies a volume of 10.0cm3. if the density of iron is 7.9 g/cm3 what is the mass of the sample
1. 2 answers
2. asked by Anonymous
3. 1,414 views
An object is on a frictionless inclined plane. The plane is inclined at an angle of 25.5 degrees with the horizontal. Using the
1. 5 answers
2. asked by Anonymous
3. 1,395 views
A picture hangs motionless on a wall as shown in the Figure. If the picture has a mass of 5.0 kg, what are the tension forces in
1. 1 answer
2. asked by Andres
3. 1,382 views
A uniform solid cylinder of mass M = 2 kg is rolling without slipping along a horizontal surface. The velocity of its center of
1. 1 answer
2. asked by Gina
3. 1,372 views
In the balanced equation MnO2 + 4HCl = MnCl4 +2H2O, how many moles of MnCl2 will be produced when 1.25 mol of H2O are formed?
1. 1 answer
2. asked by Jerome
3. 1,370 views
A 30.5 g sample of an alloy at 94.0°C is placed into 48.7 g water at 20.3°C in an insulated coffee cup. The heat capacity of
1. 6 answers
2. asked by Nevaeh
3. 1,361 views
Two blocks are tied together with a string as shown in the diagram.(There is a block on a horizontal incline, its mass is 1.0kg,
1. 1 answer
2. asked by Mercedes
3. 1,336 views
a passenger train's speed is 60mi/h, and a freight train's speed is 40mi/h .The passenger train travels the same distance in 1.5
1. 1 answer
2. asked by Anonymous
3. 1,328 views
I need help on where to find information on the effectiveness of wal-marts control mechanisms. The mechanisms are: price,
1. 0 answers
2. asked by patiance
3. 1,328 views
An airplane flew for 6 hours with a 22km/hour tailwind. The return flight against the same wind takes 8 hours. Find the speed of
1. 1 answer
2. asked by Anonymous
3. 1,320 views
A model rocket is constructed with a motor that can provide a total impulse of 25.5 N · s. The mass of the rocket is 0.213 kg.
1. 6 answers
2. asked by josh
3. 1,315 views
there are 4 girls in Mrs. Changs class than Mr. Blackwell's.5 girls moved from Mrs. Changs to Mr. Blackwells. Now there are
1. 4 answers
2. asked by lomas
3. 1,292 views
Best Western University is trying to increase the size of its student body by shifting the demand curve for its educational
1. 1 answer
2. asked by deanna
3. 1,282 views
FIND THE MEASURE OF A COMPLEMENT OF AN ANGLE THAT MEASURE 65DEGREES
1. 4 answers
2. asked by Raynique
3. 1,251 views
For a certain group of individuals, the mean hemoglobin level in the blood is 21.0 grams per milliliter (g/ml). The standard
1. 0 answers
2. asked by diandra
3. 1,251 views
write a program to calculate the amount of a server's tip given the amount of the bill and the percentage tip ovtained via input
1. 11 answers
2. asked by Stacy
3. 1,248 views
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the
1. 2 answers
2. asked by michael
3. 1,226 views
Is it ok if I use a quote to begin my reasearch paper
1. 1 answer
2. asked by renee
3. 1,194 views
41. A neutron atom of potassium has an atomic number of 19 and an atomic mass number of 39. Find its number of protons,
1. 1 answer
2. asked by mysterychicken
3. 1,176 views
A 15kg box is resting on a hill forming an angle of a horizontal surface. The coefficient of static friction for the box on the
1. 3 answers
2. asked by Samantha
3. 1,175 views
A freely rotating merry-go-round on a playground has a moment of inertia of 312 kgm2 and a radius of R=2.5 m. It is rotating
1. 2 answers
2. asked by Paige
3. 1,168 views
train A and B are traveling in the same direction on parallel tracks. train A is going 80 miles per hour train B is going 84
1. 1 answer
2. asked by brian
3. 1,163 views
A rug is to fit in a room so that a border of consistent width is left on all four sides. If the room is 9 feet by 19 feet and
1. 0 answers
2. asked by Ford
3. 1,156 views
I could not figure out the answer to this Problem:The quadratic function f(x)= -2x^2 =4x +3 can be used to solve the following
1. 3 answers
2. asked by Lee
3. 1,156 views
A daredevil jumps a canyon 10.6 m wide. To do so, he drives a car up a 19° incline. (The daredevil lands on the other side of
1. 2 answers
2. asked by Jonathan
3. 1,126 views
At a large publishing company, the mean age of proofreaders is 36.2 years, and the standard deviation is 3.7 years. If a random
1. 1 answer
2. asked by Cindy
3. 1,120 views
f(x) = 4x2 - 7x, g(x) = x2 - 3x - 28Find f/g.
1. 1 answer
2. asked by Ford
3. 1,111 views
A patient underwent dialysis for CRF. What does this abbreviation represent?A-Culture and sensitivity B-Cystoscopic examination
1. 0 answers
2. asked by Stephany
3. 1,108 views
9x - 4y = -36 in slope intercept form
1. 1 answer
2. asked by Anonymous
3. 1,073 views
34. Designed as an attempt to secure the loyalty of the French to their new rulers, this act broke new ground in toleration and
1. 1 answer
2. asked by Hannah
3. 1,061 views
Does international law work? In what situations is it most effective? In what situations is it least effective?
1. 1 answer
2. asked by janet
3. 1,060 views
An aircraft flew 6 hours with the wind. The return trip took 7 hours against the wind. If the speed of the plane in still air is
1. 1 answer
2. asked by Anonymous
3. 1,053 views
Given that delta Hrxn for OH- ions is -22.9 kJ/mol, calculate the enthalpy of neutralization when I mole of a strong monoprotic
1. 0 answers
2. asked by Mint
3. 1,049 views
What is the pronunciation rebus of helium?
1. 1 answer
2. asked by Heather Hughes
3. 1,028 views
whats the x-intercepts of the graphy = 42x2 + 28x
1. 2 answers
2. asked by destiny
3. 1,024 views
choose the correct statement concerning blood vessels.a. venules control blood flow through capillaries. b. arterioles drain
1. 0 answers
2. asked by jackie
3. 1,021 views
hello im a guy from Denmark, i have wrote an article, i'd be happy if someone could look at it. if yes send ur mail and ima send
1. 1 answer
2. asked by mojtaba
3. 1,018 views
Given the following reaction:4 KO2 + 2 H2O + 4 CO2 4 KHCO3 + 3 O2 How many moles of H2O are needed to react with 12.15 moles of
1. 1 answer
2. asked by Erika
3. 1,018 views
please help can you give any idea how to write an outline for renting an apartment is a better option than buying a house
1. 1 answer
2. asked by Anonymous
3. 998 views
I'm writing my paper on types of style such as metaphors, similies, personification, symbol for the book number the stars. What
1. 1 answer
2. asked by alainia
3. 997 views
It hills bent .law within my reach How many fats this line contain 5, 4, 6, 7,
1. 3 answers
2. asked by luis
3. 988 views
An aircraft flew 6 hours with the wind. The return trip took 7 hours against the wind. If the speed of the plane in still air is
1. 1 answer
2. asked by Anonymous
3. 986 views
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the
1. 0 answers
2. asked by michael
3. 979 views
1.test wheter these samples represent populations that are different from the general population- sample of 10 with a mean of 44
1. 0 answers
2. asked by Stephanie
3. 970 views
3. From a set of 1000 observations known to be normally distributed, the mean is 534 cm and SD is 13.5 cm. How many observations
1. 1 answer
2. asked by nimisha
3. 965 views
Is this right?If you interchange the coordinates of any point in quadrant II, the new point would then be in (what Quadrant)
1. 1 answer
2. asked by TiffanyJ
3. 964 views
It takes the elevator in a skyscraper 4.0 to reach its cruising speed of 10 . A 60 passenger gets aboard on the ground
1. 1 answer
2. asked by Luke
3. 956 views
Some kid (mass 20 kg) jumps with a velocity of 3.2 m/s horizontally off some steps (height 0.55 m) onto his heavy duty
1. 1 answer
2. asked by Sam
3. 944 views
A restaurant chef needs 8 1/2 pound of salmon. To get a good price, he buys more than he needs. He ends up with 4 7/8 pounds too
1. 7 answers
2. asked by Aly
3. 937 views
Can you please check my citation?"Deforestation facts, Deforestation Information, Effects of Deforestation." National
1. 6 answers
2. asked by Elizabeth
3. 934 views
Which of the following elements has an ionic radius greaterthan its atomic radius a) Ca c) Fe b) Li d) N
1. 3 answers
2. asked by Jessica
3. 892 views
Give the condensed structural formula for 1-butanol
1. 1 answer
2. asked by Ashley
3. 880 views
80.0 mL of water is initially at room temperature (22degrees C). A chilled steel rod at 2 degrees C is placed in the water. If
1. 1 answer
2. asked by Ellen
3. 879 views
Along the remote Racetrack Playa in Death valley, California, stones sometimes gouge out prominent trails in the desert floor,
1. 1 answer
2. asked by Sam
3. 869 views
Consider the function:f(x) = x/(x^2 + 2) (a) Determine the intervals on which the function is concave up. Enter the leftmost
1. 1 answer
2. asked by Help asap!! plz
3. 869 views
Compare and Contrast the Virginia Plan and the New Jersey Plan and who were the Founding Fathers that were on each side?
1. 4 answers
2. asked by Bobby
3. 864 views
Jarrels goal is to be half finished with the book he is reading by friday. By wednesday he has read 1/3 of the book.How much
1. 5 answers
2. asked by Aly
3. 858 views
The standard deviation of GPAs (grade point averages) of all male students at a college is .35 and the standard deviation of
1. 1 answer
2. asked by Lisa
3. 856 views
is the force exerted by the wall on the person’s hand passive or active?
1. 1 answer
2. asked by brian
3. 854 views
A calorimeter contains 21.0 mL of water at 14.0 degreesC. When 1.90 g of X (a substance with a molar mass of 70.0 g/mol) is
1. 0 answers
2. asked by Ellen
3. 847 views
one number is three more than a second number. Three times the first is 7 less than 2 times the second. Find the numbers.The
1. 1 answer
2. asked by Anonymous
3. 841 views
A solid ball of mass m and radius r rolls without slipping through a loop of radius R, as shown in the figure. From what height
1. 0 answers
2. asked by Gina
3. 837 views
In Windows Vista, which button is used to create a new folder?A. Organize C. File B. Windows icon D. Views 20. Which Windows
1. 1 answer
2. asked by saint
3. 830 views
Two motorcyclists start at the same point and travel in opposite directions. One travel 3 mph faster than the other. In two
1. 9 answers
2. asked by kate
3. 811 views
This is a from chapter 3 #82. the problem is:Write a program to calculate the amount of a server's tip given the amount of the
1. 1 answer
2. asked by Lee
3. 810 views
A solid ball of mass m and radius r rolls without slipping through a loop of radius R, as shown in the figure. From what height
1. 0 answers
2. asked by Gina
3. 808 views
I'm a 8th grade student and i need to write a Proffesional Business letter to My 7th grade english Teacher can you help?
1. 3 answers
2. asked by Abigail
3. 804 views
A new element, Canadium, not found on earth, contains 3 isotopes. given the following information, calculate the atomic mass of
1. 0 answers
2. asked by peter
3. 800 views
Separation scheme for isolating benzoic acidCould you please show me a separation scheme for isolating benzoic acid from a
1. 0 answers
2. asked by Jessica
3. 799 views
a piece of wire that is 58cm long is cut into three pieces. the longest piece is 6cm shorter than the sum of the lengths of the
1. 3 answers
2. asked by ckim
3. 797 views
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the
1. 1 answer
2. asked by michael
3. 796 views
A 175 kg horizontal beam is supported at each end. A 300 kg piano rests a third of the way from one end.What is the vertical
1. 1 answer
2. asked by ami
3. 793 views

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