Questions Asked in September 2012
 September 1, 2012
 September 2, 2012
 September 3, 2012
 September 4, 2012
 September 5, 2012
 September 6, 2012
 September 7, 2012
 September 8, 2012
 September 9, 2012
 September 10, 2012
 September 11, 2012
 September 12, 2012
 September 13, 2012
 September 14, 2012
 September 15, 2012
 September 16, 2012
 September 17, 2012
 September 18, 2012
 September 19, 2012
 September 20, 2012
 September 21, 2012
 September 22, 2012
 September 23, 2012
 September 24, 2012
 September 25, 2012
 September 26, 2012
 September 27, 2012
 September 28, 2012
 September 29, 2012
 September 30, 2012
Most Popular Questions of September 2012

LAW 302 business law for Managers
what is your opinion on the role of fault and individual responsibility in both torts and product liability? Not sure how to answer this question.
asked by Timica on September 12, 2012 
management of business
what is a joint venture? what are the sources of finance for joint ventures? describe the appropriateness of the legal structure and some problems associated with changing from one legal structure to the other ...what are some advantages and disadvantages
asked by kerry j on September 16, 2012 
LAW 302 business law for Managers
what is your opinion on the role of fault and individual responsibility in both torts and product liability? Not sure how to answer this question.
asked by Timica on September 12, 2012 
math
Eliza Savage received a statement from her bank showing a checking account balance of $324.18 as of January 18. Her own checkbook shows a balance of $487.38 as of January 29. The bank returned all of the cancelled checks but three. The amounts of these
asked by Kirea on September 3, 2012 
English 3
1) Select the abbreviation that tells how the italicized noun clause is used. Ssubject, DOdirect object, SCsubject complement, OPobject of preposition Our study efforts should go to (whatever subject is most in need of improvement.) *my answer is DO
asked by Debra on September 18, 2012 
Chemistry
The density of pure silver is 10.5 g/cm3 at 20 °C. If 5.25 g of pure silver pellets is added to a graduated cylinder containing 11.2 mL of water, to what volume level will the water in the cylinder rise?
asked by Crissy on September 5, 2012 
chemistry
Indicate the number of equivalents in each of the following: 4mol Mg2+ 0.1mol H+ 2mol Cl 3mol Fe3+
asked by Katherine on September 12, 2012 
Calc 3
At what point on the paraboloid y = x2 + z2 is the tangent plane parallel to the plane 7x + 2y + 3z = 2? (If an answer does not exist, enter DNE.)
asked by Becky on September 27, 2012 
Probability and statistics
A dice game involves rolling 2 dice. If you roll a 2, 3, 4, 10, 11, or a 12 you win $5. If you roll a 5, 6, 7, 8, or 9 you lose $5. Find the expected value you win (or lose) per game.
asked by Rosmery on September 18, 2012 
chem
I am pretty confused on this. 1. Pick the appropriate solvent to dissolve A) Sodium Chloride (ionic) B) Sodium Nitrate (ionic) both have the choices of 1) water 2) acetone 3)ethanol 4)methanol 5)carbon tetrachloride 6)toluene 7)hexane
asked by michelle on September 18, 2012 
Chemistry
You are asked to prepare 500. mL of a 0.150 M acetate buffer at pH 5.00 using only pure acetic acid, 3.00 M NaOH, and water. Calculate the quantities needed for each of the following steps in the buffer preparation. 1. Add acetic acid to ~400 mL of water
asked by Kw1h on September 28, 2012 
chemistry
how many "particles in solution" will form from each sucrose (C12H22O11) molecule added to water? Explain. I don't understand where I am supposed to start... What do I need to know to do this problem? thank you
asked by Laura on September 12, 2012 
Chemistry
what volume, in L, of a 10.0M HCL solution is needed to make 2.00L of 2.00m HCL solution by dilution with water. Thank you
asked by kate Please help on September 1, 2012 
General Chemistry
A solution of LiCl in water has XLiCl = 0.0800. What is the molality?
asked by jamiya on September 18, 2012 
chemistry
how many joules of nutritional energy are in a bag of chips whose label reads 245 Cal? if 1 lb of fat is stored by the body for each 14.6X10(3) KJ of excess nutritional emergency consumed.how many bags of chips contain enough nutritional energy to result
asked by suzy on September 11, 2012 
math
1. Rosa, Roberto, Andrea, and Inno find an estimate for the square root of 10. Who has proposed the best solution? a. Rosa: "Use the sqaure root of 9 and the square root of 25 to estimate." b. Roberto: "I will use the square root of 4 and the sqaure root
asked by steve on September 25, 2012 
economics
If Sarah opens a savings account that has a yearly simple interest rate of 15%, how much would Sarah have total if she deposits $1500 at the end of the year?
asked by susy on September 25, 2012 
chemistry
ethanol is a common laboratory solvent and has a density of 0.789 g/ml what is the mass in grams of 139 mL of ethanol
asked by baRRY on September 3, 2012 
physics
(a) daredevil is attempting to jump his motorcycle over a line of buses parked end to end by driving up a 32° ramp at a speed of 40.0 m/s (144 km/h), How many buses can he clear if the top of the takeoff ramp is at the same height as the bus tops and
asked by Anonymous on September 6, 2012 
chemistry
calculate the lattice energy of sodium oxide (Na2O) from the following data: Ionization energy of Na(g): 495 kJ/mol Electron affinity of O2 for 2e: 603 kJ/mol Energy to vaporize Na(s): 109 kJ/mol O2(g) bond energy: 499 kJ/mol Energy change for the reaction
asked by Meeeee on September 14, 2012 
science
A simple model for a person running a 100m race is to assume the sprinter runs with constant acceleration until reaching top speed, and then maintains that speed through the finish line. If a sprinter reaches their top speed of 11.2ms1 in 2.15s, what will
asked by Emily on September 4, 2012 
physics
5) After catching the ball, Sarah throws it back to Julie. The ball leaves Sarah's hand a distance 1.5 meters above the ground, and is moving with a speed of 22.0 m/s when it reaches a maximum height of 9.0 m above the ground. What is the speed of the ball
asked by Jake on September 10, 2012 
chemistry
In part B of my question, I was asked calculate the number of atoms in 0.615 mol of 13C (mass number of this Carbon is 13). I received the correct answer of 3.70E23 atoms. However, I do not know how to do Part C of my question, which asks "Based on your
asked by Kevin on September 16, 2012 
physics
what average force is needed to accelerate a 7.00gram pellet from rest to 125m/s over distance of a .800m along the barrel of a rifle.
asked by Anonymous on September 27, 2012 
Precalculus
Please help...a computerized spin balance machine rotates a 25 inch diameter tire at 480 revolutions per minute. (a) find the road speed in miles per hour at which the tire is being balanced (b) at what rate should the spin balance machine be set so that
asked by Michelle on September 13, 2012 
physics
A bus makes a trip according to the positiontime graph shown in the drawing. What is the average velocity (magnitude and direction) of the bus during (a) segment A, (b) segment B, and (c) segment C? Express your answers in km/h
asked by Anonymous on September 6, 2012 
Chemistry
What is ΔG at body temperature (37.0° C) if the concentration of A is 1.7 M and the concentration of B is 0.50 M?
asked by amanda1012 on September 8, 2012 
chemistry
when chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give bromine a red brown liquid and sodium chlorine. A solution was made by dissolving 20.0g of sodium bromide in 100.0 g of water. After passing through the
asked by Anonymous on September 17, 2012 
calculus
Find an interval of length 0.1 in [1, 2] containing a root of the equation. (Enter your answer using interval notation.) x7 + 7x − 10 = 0
asked by patel on September 22, 2012 
chemistry
If you analyzed each of the substances NaBr, KOH, CrPO4, Pb(OH)2, RbCl, LiNO3 by mixing them with water in a beaker, which substances would be most likely to fall to the bottom of the beaker? 1. KOH and Pb(OH)2 2. CrPO4 and LiNO3 3. NaBr 4. RbCl and LiNO3
asked by cheri on September 19, 2012 
math
Suppose you are managing 16 employees, and you need to form three teams to work on different projects. Assume that all employees will work on a team, and that each employee has the same qualifications/skills so that everyone has the same probability of
asked by bballer on September 26, 2012 
physics
A nurse pushes a cart by exerting a force on the handle at a downward angle 35.0º below the horizontal. The loaded cart has a mass of 28.0 kg, and the force of friction is 60.0 N. (a) Draw a freebody diagram for the system of interest. (b) What force
asked by John on September 18, 2012 
IPC
If a car can go from 0 to 60 mi/hr in 8.0 seconds, what would be its final speed after 5.0 seconds if its starting speed were 50 mi/hr? And thank you everyone for answering my questions!!
asked by Corrie on September 11, 2012 
Chemistry
I've tried to solve this question multiple ways I just can't seem to get it. I just don't understand what I should be doing. An organic liquid is a mixture of methyl alcohol () and ethyl alcohol (). A 0.220 sample of the liquid is burned in an excess of
asked by John on September 16, 2012 
arithmetic
A water tank can hold 56 1/4 litres of water .How much water is contained if it is 8/15 full?
asked by sreemonti mukherjee on September 13, 2012 
Physics
A mass m1 = 3.3 kg rests on a frictionless table and connected by a massless string over a massless pulley to another mass m2 = 4.4 kg which hangs freely from the string. When released, the hanging mass falls a distance d = 0.87 m. 1) How much work is done
asked by David on September 30, 2012 
chemistry
What is the melting point of a mixture of 2.00 lb of NaCl and 12.00 pounds of ice if exactly half of the ice melts? Assume that all the NaCl disolves in the melted ice and that the van't Hoff factor for resulting solution is 1.44.
asked by Wiped on September 11, 2012 
physics
A pitcher throws a 0.5kg ball of clay at a 6kg block of wood. The clay sticks to the wood on impact and their joint velocity afterwards is 3m/s. What is the original speed of the clay? I know the answer is 39m/s but I have no idea how they come up with
asked by tiffany on September 23, 2012 
physics
A 0.33 kg pendulum bob is attached to a string 1.2 m long and hangs vertically as shown in Figure 1. What is the change in the pendulum bob’s gravitational potential energy as it swings from the lowest point of the pendulum to a point that is 35 degree
asked by farah on September 6, 2012 
Trigonometry
Points A and B 1000 meter apart are plotted on a straight highway running east and west. from A, the bearing of tower C is N32*W and from be, the bearing of C is N64*E. approximate the shortest distance of the tower from the highway. please explain........
asked by Roy on September 9, 2012 
chemistry
is IBr a hydrogen bonding or dipoledipole interactions or dispersion forces
asked by shay on September 28, 2012 
Chemistry
What is the specific gravity of alcohol having a density of .79 g/mL?
asked by Daisy on September 4, 2012 
social study
A comparison of the average temperatures on any given day at points z,x, and U on the glove would probably show that the temperature at point X is? 1 warmer than at z and cooler than at U 2 warmer than at z and cooler than at U 3 cooler than at z and
asked by rony on September 24, 2012 
accounting
Logan Products computes its predetermined overhead rate annually on the basis of direct laborhours. At the beginning of the year, it estimated that 38,000 direct laborhours would be required for the period’s estimated level of production. The company
asked by sally on September 8, 2012 
Probability and statistics
There is an equally likely chance that a falling dart will land anywhere on the rug below. The following system is used to find the number of points the player wins. What is the expected value for the number of points won?Black = 40 points Gray = 20 points
asked by Rosmery on September 18, 2012 
physics
Two tugboats are towing a ship.Each exerts a force of 6000 N and the angle between two ropes is 60 degrees.What is the resultant force on the ship?
asked by anil on September 26, 2012 
Physics
One kind of slingshot consists of a pocket that holds a pebble and is whirled on a circle of radius r. The pebble is released from the circle at the angle θ so that it will hit the target. The angle in the drawing is 33.4°. The distance to the target
asked by Ryan C. on September 23, 2012 
math
Find the slope m of the tangent to the curve y = 5/ sqrt (x) at the point where x = a > 0. what is the slope?
asked by maura urgent! on September 14, 2012 
Chemistry
I need help please I am so confused. How much dry solute would you take to prepare each of the following solutions from the dry solute and the solvent? I know the MM of KCl is 74.55 107g of 0.535m KCl
asked by Erica on September 18, 2012 
Physics
Mary needs to row her boat across a 100m wide river that is flowing to the east at a speed of 1.0m/s. Mary can row with a speed of .0m/s a) If mary points her boat due north, how dar from her intended landing spot will she be when she reaches the opposite
asked by Jake on September 14, 2012 
Microeconomics
8. Assume that the United States is an importer of televisions and there are no trade restrictions. U.S. consumers buy 1 million televisions per year, of which 400,000 are produced domestically and 600,000 are imported. (Worth 2 points) a. Suppose that a
asked by Gabby on September 26, 2012 
Calculus
Write the polar equation in rectangular form. r = 12 sin theta Write the rectangular equation (x + 7)^2 + y^2 = 49 in polar form
asked by batmo on September 17, 2012 
Probability and statistics
A mysterious cardplaying squirrel (pictured) offers you the opportunity to join in his game. The rules are: To play you must pay him $2. If you pick a spade from a shuffled pack, you win $9. Find the expected value you win (or lose) per game.
asked by Rosmery on September 18, 2012 
Physics
In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar to that in the figure below and has a range of 15 m. Suppose the launch speed is doubled, and the projectile is fired at the same
asked by Anonymous on September 18, 2012 
Physics
Hearing damage may occur when a person is exposed to a sound intensity level of 90.0 dB (relative to the threshold of hearing) for a period of 9.0 hours. One particular eardrum has an area of 1.90 104 m2. How much sound energy is incident on this eardrum
asked by Morgn on September 14, 2012 
Maths
A uniform cylindrical container is half filled with water. The height of the cylinder is twice its diameter. The cylinder is gradually tilted until the water touches the brim. At this instant, the container is inclined at which angle: 1.30 2.45 3.60 4.75
asked by Anchal on September 4, 2012 
math
Janet Home went to Citizen Bank. She borrowed $7,000 at a rate of 8 percent. The date of the loan was September 20. Janet hoped to repay the loan on January 20. Assuming the loan is based on ordinary interest, Janet will pay back interest on January 20:
asked by Anonymous on September 29, 2012 
Chem
Calculate the number of C atoms in 0.185 C6H14O.
asked by Kim on September 28, 2012 
chemistry
What is the mole ratio of benzene (C6H6) to noctane in the vapor above a solution of 15.0% benzene and 85.0% noctane by mass at 25 degrees Celcius? the vapor pressures of noctane and benzene are 11 torr and 95 torr.
asked by Wiped Out on September 14, 2012 
HISTORY
10. Which of the following statements is true regarding the Korean War? A. Stalin approved the North Korean attack in advance. B. Stalin was outraged by the North Korean attack on South Korea. C. Both Stalin and Mao expected the American response to the
asked by JESSICA on September 3, 2012 
calculus
Find y'' by implicit differentiation. 3x3 + 4y3 = 1
asked by Anonymous on September 26, 2012 
Algebra 1
Please help me on pg 50 from algebra with pizzazz 5,6,8
asked by AndroAttaalla on September 18, 2012 
Probability and statistics
In a game you flip a coin twice, and record the number of heads that occur. You get 10 points for 2 heads, zero points for 1 head, and 5 points for no heads. What is the expected value for the number of points you’ll win per turn?
asked by Rosmery on September 18, 2012 
Chem
A particular coal contains 2.5% sulfur by mass. When this coal is burned, the sulfur is converted into sulfur dioxide gas. The sulfur dioxide reacts with calcium oxide to form solid calcium sulfite. If the coal is burned in a power plant that uses 1800
asked by Ezra on September 17, 2012 
Chemistry
What is the hybridization of phosphorous in a P4 molecule
asked by Rachel on September 25, 2012 
math
A factory can produce two products, x and y, with a profit approximated by P = I think it's b but I'm not really sure. Can someone show me how to do this or let me check my answer? :) 14x + 22y – 900. The production of y can exceed x by no more than 200
asked by Alex on September 17, 2012 
SIG FIGS
How many significant figures does 22.0, 0.22, 22. , 0.022? Im just confused as to the decimal addition to numbers and what the sig figs will be for them. If you don't mind can you please state some rules for sig figs that are helpful and some confusing
asked by Sally on September 20, 2012 
chemistry
When californium249 is bombarded by oxygen18, a new isotope and four neutrons are produced. Express your answer as a nuclear equation.
asked by Shay on September 26, 2012 
geometry
Algebra BD bisects
asked by Jane on September 14, 2012 
Science
you have 100ml of water in a beaker. you add 20 ml of table salt. the water level rises to only 105 ml.
asked by Tee on September 19, 2012 
chemistry help!
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 has to dissolve in water to absorb 105 kJ of heat?
asked by student on September 19, 2012 
physics
Anonymous answer rating percentage100% Figure 2221 shows two square arrays of charged particles. The squares with edges of 2d and d are centered at point P and are misaligned. The particles are separated by either d or d/2 along the perimeters of the
asked by rawand on September 26, 2012 
chemistry
Write the formulas of the compound Al+3 formed by specified cations with the following anions:OH, NO3, CO32,HSO4, PO43 . Use the given order of anions
asked by shay on September 27, 2012 
chemistry
the diameter of a helium atom is about 1*10^2pm.suppose that we could line up helium atoms side by side in contact with one another. aproximately how maney atoms would it take to make the distance from end to end 1cm ?
asked by whitney on September 7, 2012 
statistics
The director of an alumni association for a university wants to look at the relationship between the number of years since graduation and the amount of monetary contribution an alumnus makes to the university. He collects data on 50 alumni who have made
asked by David on September 22, 2012 
physics
A shuffleboard disk is accelerated to a speed of 5.6 m/s and released. If the coefficient of kinetic friction between the disk and the concrete court is 0.29, how far does the disk go before it comes to a stop? The courts are 15.7 m long.
asked by Karl on September 26, 2012 
Physics
A gray kangaroo can bound across level ground with each jump carrying it 8.4m from the takeoff point. Typically the kangaroo leaves the ground at a 23 angle. 1. Provide knowns and unknown values. 2. What is the initial velocity or takeoff speed? 3. What is
asked by Yuki on September 27, 2012 
math
mr. Rodriguez, a college instructor, can grade his class papers in 3 hours while it takes his assistant 4 1/2 hours. If Mr. Rodriguez graded the papers for 1 hour and then left the job for his assistant to complete, how long will it take his assistant to
asked by help pleaseee on September 9, 2012 
Algebra2
A triangle has points A(1, 2), B(1, 6), and C(3, 6) and is reflected over the xaxis and then over the line y = x. A"B"C" are the coordinates of the reflected image. What is the A" coordinate?
asked by Maranda on September 27, 2012 
chemistry
A solution was made by dissolving 5.15 mg of hemoglobin in water to give final volume of 1.00 mL. The osmotic pressure of this solution was 1.97 x 10^3 atm at 25C. Calculate the molar mass of hemoglobin. pi = iMRT i = 1 since hemoglobin is nonelectrolyte
asked by Wiped Out on September 14, 2012 
algebra
the spreadsheet shows the monthly revenue and expenses for a new business.use the models to predictt the month in which revenue will equal expense. month revenue expenses jan 4000 22,000 feb 9000 24,000 mar 13,000 25,000 apr 16,000 27,000 may 21,000 30,000
asked by lilman on September 21, 2012 
physics
A plane is flying horizontally at a height of 500 m and a constant speed of 429 km/h when an object is projected vertically downward at an initial speed of 35.0 m/s. If air resistance is neglected, the average vertical component of velocity between the
asked by Anonymous on September 3, 2012 
Chemistry
The solubility of acetanilide in hot water (5.5 g/100 mL at 100C) is not very great, and its solubility in cold water (0.53 g/100 mL at 0C) is significant. What would be the maximum theoretical percent recovery from the first recrystallization of 0.5 g of
asked by david on September 20, 2012 
Physics
In a vertical dive a peregrine falcon can accelerate at 0.6 times the freefall acceleration (that is at 0.06g) in reaching the speed of about 100 m/c. If a falcon pulls out of a dive into a circular arc at this speed and can sustain a radial acceleration
asked by Ryan on September 25, 2012 
Biology
Which of the following statements correctly compares the functions of a plant's roots and stem? The stem contains a high percentage of cells that provide structural support, unlike the roots. The stem is the first part of the plant to emerge from a seed,
asked by Madi on September 28, 2012 
Chemistry
A 2.839g sample of C2H4O was burned in a bomb calorimeter whose total heat capacity is 16.77 kJ/°C. The temperature of the calorimeter increases from 22.62°C to 26.87°C. What is the heat of combustion per mole of C2H4O?
asked by Nisah on September 17, 2012 
Math
Multiply & write in simplest form: The mississippi river is about 23/25 the length of the missouri river. If the missouri river is 2,540 miles long, how long is the mississippi river? Thanks
asked by Sam on September 12, 2012 
Calc 3
Find all partial derivatives? v = (xy)/(xy) vxx= vxy= vyx= vyy=
asked by Becky on September 20, 2012 
college algebra
Deshaun is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices. Company A has no initial fee but charges .70 cents for every mile driven. Company B charges an initial fee of $50 and an
asked by dawn on September 22, 2012 
Algebra (Please check)
PLEASE CHECK MY ANSWERS (: I just want to make sure I am doing this correctly __________________________________ Graph the system of constraints and find the value of x and y that maximize the objective function. Constraints: x ≥ 0 y ≥ 0 y ≤ (1)/(5)
asked by Greg on September 17, 2012 
chem
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 has to dissolve in water to absorb 105kj of heat? Answer in kg.
asked by michelle on September 19, 2012 
algebra
Determine whether y varies directly with x, If so, find the constant of variation k and write the equation. x y 4 6.4 7 11.2 10 16 13 20.8 Would like for someone to explain if possible
asked by jay on September 10, 2012 
physics
A swimmer is capable of swimming 0.95 m/s in still water. (a) If she aims her body directly across a 150mwide river whose current is 0.65 m/s, how far downstream (from a point opposite her starting point) will she land?
asked by jeje on September 20, 2012 
Physics
A solid of density 5000 kg/m^3 weighs 0.5 kgf in air.It is completely immersed in water of density 1000 kg/m^3. Calculate the apparent weight of the solid in water.
asked by Mayank on September 20, 2012 
economics
Suppose the price of widgets falls from $7 to $5 and consumption of widgets rises from 15 widgets a month to 25 widgets. Calculate your price elasticity of demand of widgets. What can you say about your price elasticity of demand of widgets? Is it Elastic,
asked by steve on September 14, 2012 
calc 3
Use polar coordinates to find the limit. [If (r, θ) are polar coordinates of the point (x, y) with r ≥ 0, note that r → 0+ as (x, y) → (0, 0).] (If an answer does not exist, enter DNE.) lim (x, y)→(0, 0) [(3e^−x^2− y^2) − 3]/ (x^2 + y^2)
asked by Becky on September 17, 2012 
Art Northern European Renaissance
Match with the correct word 1. The Renaissance coincided with dog 2. Van Eyck's paintings lack any reference to this eating 3. Brueghel’s detailed portraits of daily life are called the Protestant reformation 4. The people he liked to paint peasants 5.
asked by Debra Wrinkle on September 24, 2012 
Math
The ratio of red jelly beans to yellow jelly beans in a dish is 3:4. if greg eats 3 red jelly beans and 6 yellow ones, the ratio is 4;5. how many jelly beans were originally in the dish?
asked by April on September 10, 2012 
Math
Your computersupply store sells two types of inkjet printers. The first, type A, costs $237 and you make a $22 profit on each one. The second, type B, costs $122 and you make a $19 profit on each one. You can order no more than 120 printers this month,
asked by Greg Martin on September 17, 2012 
Math
Find the unknown digit to make the sentence true 2.48>2.4__ 1>2.463 5.723
asked by Jordan on September 10, 2012