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2012
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Questions Asked on March 3, 2012

A sporting goods store sells 100 pool tables per year. It costs $20 to store one pool table for a year, based on the average
1. 4 answers
2. asked by Casey
3. 7,781 views
Using conservation of energy, find the speed v_b of the block at the bottom of the ramp.Express your answer in terms of some or
1. 3 answers
2. asked by Mrs G
3. 7,496 views
If you pull one end of the rope 1.0 m downward with a 50 N force, find the height you can lift a 150 N load.
1. 3 answers
2. asked by Mrs G
3. 7,179 views
If the zero level is a distance 2h/3 above the floor, what is the potential energy U of the block on the floor?Express your
1. 3 answers
2. asked by Mrs G
3. 6,821 views
How many grams of c6h12o6 are needed to form 7.50g of c2h5oh
1. 2 answers
2. asked by Winnie
3. 5,787 views
A buffer is prepared by adding 300.0mL of 2.0M NaOH to 500.0mL of 2.0M CH3COOH. What is the pH of this buffer? ka=1.8x10-5
1. 3 answers
2. asked by tina
3. 5,630 views
A 1.00-L solution saturated at 25°C with lead(II) iodide contains 0.54 g of PbI2. Calculate the solubility-product constant for
1. 2 answers
2. asked by DAN
3. 5,481 views
prove (cscx-secx/cscx+secx)=(cotx-1/cotx+1)
1. 1 answer
2. asked by Bud
3. 4,775 views
a buffer is to be prepared by adding solid sodium acetate to 0.10M CH3COOH. Which othe following concentrations of sodium
1. 2 answers
2. asked by Noah
3. 3,382 views
If a transparent material has a refractive of 2.0;a) calculate the critical angle b) if the refractive index were less than 2,0,
1. 2 answers
2. asked by Cathy
3. 3,273 views
A 4-m wooden platform weighing 160 N is suspended from the roof of a house by ropes attached to its ends. A painter weighing 640
1. 2 answers
2. asked by joy
3. 3,264 views
prove(sinx/cosx+1)+(cosx-1/sinx)=0Please help asap!!!!! PLEASE
1. 1 answer
2. asked by Katie
3. 3,247 views
Write the dissociation reaction and the corresponding Ka equilibrium expression for each of the following acids in water. (Use
1. 1 answer
2. asked by Chris
3. 3,160 views
A small bowl contains a mixture of toothpicks and glass marbles.The easiest way to separate the mixture without touching it
1. 14 answers
2. asked by running.from.myself
3. 2,954 views
Four metal balls fit snugly inside a cylindrical can. A geometry student claims that two extra balls of the same size can be put
1. 1 answer
2. asked by Piggy
3. 2,862 views
the pressure (p) that a 160-pound person's shoe exerts on the ground when walking varies inversely with area (a) of the sole of
1. 2 answers
2. asked by bobby
3. 2,634 views
A buffer, consisting of H2PO4− and HPO42−, helps control the pH of physiological fluids. Many carbonated soft drinks also
1. 3 answers
2. asked by MARY
3. 2,507 views
Find the absolute extrema of the function on the closed interval.f (x) = x^3 − 12x, [0, 4] minimum (x, y) =( ) maximum (x, y)
1. 2 answers
2. asked by Malika
3. 2,506 views
What is the pH of a solution that consists of 0.50M H2C6H6O6(ascorbic acid) and 0.75M NaHC6H6O6(sodium ascorbate)? for ascorbic
1. 1 answer
2. asked by tom
3. 2,293 views
A 500-kg cannon and a supply of 80 cannon balls, each with a mass of 45.0 kg, are inside a sealed railroad car with a mass of
1. 3 answers
2. asked by Katie
3. 2,013 views
please help solve this problem now. I really need an answer. thank youWhen one mole of KOH is neutralized by sulfuric acid,
1. 1 answer
2. asked by ogi
3. 1,990 views
Nitroglycerin is a powerful explosive, giving four different gases when detonated.2 C3H5(NO3)3 (l) → 3 N2 (g) + 1/2 O2 (g) + 6
1. 1 answer
2. asked by ogi
3. 1,924 views
What is the magnitude of the energy change associated with the emission of one mole of photons of light* with this wavelength?li
1. 1 answer
2. asked by Zoe
3. 1,878 views
A cone has a volume of 36pi cubic meters. Its height is four times its radius. Find the surface area of the cone.
1. 1 answer
2. asked by Piggy
3. 1,762 views
In a game of pool, the cue ball strikes another ball initially at rest. After the collision, the cue ball moves at 4.15 m/s
1. 1 answer
2. asked by Katie
3. 1,759 views
calculate the solunility of silver chromate, Ag2CrO4, in 0.005 M NA2CrO4- Ksp=2.6x10-12Please help.....
1. 2 answers
2. asked by Deb
3. 1,720 views
1. Who could be a citizen of Rome?A) men B) women C) slaves D) resident aliens 2. Villas were estates outside of the city with
1. 5 answers
2. asked by running.from.myself
3. 1,678 views
What is the height of a cylinder with a radius of 6 inches and a surface area of 168pi in^2?
1. 3 answers
2. asked by Piggy
3. 1,504 views
Police use a formula s = S √1/L , where S is the test-car speed and L is the test-skid length, to find the actual speed s in
1. 1 answer
2. asked by Marie
3. 1,473 views
The atmospheric pressure above a swimming pool changes from 755 to 765mm of mercury.The bottom of the speed is a 12m x 24m
1. 1 answer
2. asked by Scibe
3. 1,464 views
I need help writing a thesis statement for my philosophy paper. The paper is about two philosopher's, Thrasymachus and Socrates.
1. 11 answers
2. asked by Kathryn
3. 1,420 views
$M is just sufficient to pay for the wages of one qualified teacher for x days or the wages of one relief teacher for y days.
1. 2 answers
2. asked by Marie
3. 1,399 views
How much heat is evolved or absorbed in this problem?Question Details Limestone, CaCo3, when subjected to a temperature of 900
1. 3 answers
2. asked by Anonymous
3. 1,341 views
An unknown substance is found to require a very large amount of heat energy to raise its temperature a single degree. Does it
1. 1 answer
2. asked by GRISSELL
3. 1,303 views
which of the following has the highest buffer capacity?A 0.10M H2PO4-/0.10M HPO4 -2 B 0.50 M H2PO4-/0.10 M HPO 2- C 0.10 M
1. 1 answer
2. asked by DebC
3. 1,286 views
Q. An open-top box with a square base is to have a volume of 62.5 square inches. What dimensions will yield the box of minimum
1. 2 answers
2. asked by Casey
3. 1,267 views
If the Earth had two identical moons in one circular orbit, and the moons were as far apart in that orbit as they could be, the
1. 1 answer
2. asked by Mrs G
3. 1,232 views
You initially contributed $200,000 of your own money and in return you received 2 million shares of stock. Since then, you have
1. 1 answer
2. asked by Michelle
3. 1,198 views
Do we have an imbalance of trade, where some nations dominate? If so who dominates world trade today? (2 examples)How does this
1. 1 answer
2. asked by Morgan
3. 1,109 views
a football player can run 20 yards in 3.4 seconds. write an equation to find y, the number of yards the football player can run
1. 6 answers
2. asked by sue
3. 1,067 views
which one of the following pairs of 0.100 mol L-1 solutions, when mixed will produce a buffer solution?a 50. mL of aquesous
1. 2 answers
2. asked by leaha
3. 1,061 views
which of the following empires rose to have tremendous influence despite having poor resource a non-strategic location no
1. 1 answer
2. asked by Marrow
3. 1,005 views
what is the molecular geometry of niacin? C6H5NO2
1. 1 answer
2. asked by ann
3. 994 views
Assume that the class has 60 students and that the examination period is 90 minutes in length. How many students do you expect
1. 0 answers
2. asked by Jason
3. 987 views
The projected annual sales (in dollars) of a new product are given by the equation S=150,000+3000t, where t is the time in years
1. 1 answer
2. asked by lieyn
3. 966 views
Hostis sent a car company charges 45 dollars per day plus 40 cents per mile for a compact car, and gasoline costs 1.19 dollars
1. 1 answer
2. asked by Anonymous
3. 964 views
if 10.0g of NaF and 20.0 g of HF are dissolved in water to make one liter of solution, what will the pH be? For HF, Ka=6.8x10-4.
1. 1 answer
2. asked by rick
3. 947 views
4. A,B and C are points on a horizontal plane.A is 75 m from C on a bearing of 210 degrees and the bearing of B from C is 120
1. 0 answers
2. asked by Jack
3. 933 views
Nosotros les (vender) el auto a unos chicos venezolanos. preterite form of the verb supplied
1. 4 answers
2. asked by mike
3. 924 views
The Giant Ocean Tank in Boston's New England Aquarium is a cylinder that is 23 feet high and has a volume of 200,000 gallons, (1
1. 1 answer
2. asked by Piggy
3. 915 views
The following project uses the game of Guess Your Card. This is a game in whicheach player draws (without looking) three cards.
1. 0 answers
2. asked by d's
3. 910 views
A block of mass M1=2.9 kg rests on top of a second block of mass2=5.5 kg, and the second block sits on a surface that is so
1. 3 answers
2. asked by April
3. 909 views
How much heat is evolved or absorbed in this problem?Question Details Limestone, CaCo3, when subjected to a temperature of 900
1. 1 answer
2. asked by Anonymous
3. 900 views
how to calculate Qd=15.0-0.2P
1. 0 answers
2. asked by Dee
3. 875 views
On some tubes of caulking, the diameter of the circular nozzle opening can be adjusted to produce lines of varying thickness.
1. 1 answer
2. asked by Jenna
3. 861 views
A 170 -pF capacitor is connected in series with an unknown capacitance, and as a series combination they are connected to a
1. 1 answer
2. asked by BOB
3. 855 views
find the area of the region under the curve y=f(x)=e^2xover the indicated interval x<2
1. 1 answer
2. asked by wei_g
3. 848 views
Assume the earth is a uniform sphere and that its path around the sun is curcular.Calculate the kinetic energy that the earth
1. 1 answer
2. asked by Nilan
3. 823 views
Assume that your family has 10 members. Assume further that each family member has a certain amount of savings. Your task is to
1. 3 answers
2. asked by Anonymous
3. 817 views
The concentration of calcium ions in hard water can be determined by titration with reagent X,which forms a complex with
1. 1 answer
2. asked by Anonymous
3. 804 views
What stoichiometric concentration of the indicated substance is required to obtain an aqueous solution with the pH value shown
1. 5 answers
2. asked by Kiana
3. 803 views
Hi all. I posted earlier but I'm still stuck on part of this problem.I thought that statements 2 and 3 were correct below. But I
1. 2 answers
2. asked by Jim
3. 767 views
during a molar volume of oxygen experiment indicate how each of the following errors would affect (increase, decrease, or no
1. 1 answer
2. asked by Anne
3. 761 views
Use implicit differentiation to find the equation of the tangent line to the curve xy^3+xy=5 at the point (4,1) . The equation
1. 3 answers
2. asked by josie
3. 748 views
i am talking about slaves and i don't understand what this sheet is talking about it is made like a moutain 1..is talking about
1. 1 answer
2. asked by andalyn
3. 744 views
Paraphrasing and QuotingReview the following passage and paraphrase the long passage in the following box. Use the reference to
1. 4 answers
2. asked by tasha
3. 741 views
A physics book slides off a horizontal table top with a speed of 1.15 . It strikes the floor after a time of 0.360 . Ignore air
1. 1 answer
2. asked by WASEEQ
3. 740 views
I wanted to calculate the normality of the acid and base solutions for a lab. But I'm extremely confused. I know normality is
1. 2 answers
2. asked by Priscilla
3. 739 views
You and three (3) of your friends were in the same advance placement high school chemistry class in high school. All four (4) of
1. 0 answers
2. asked by d's
3. 736 views
If I mixed sugar and sand into the water,what would happen? The sugar would ___, and the sand would ___dissolve;not dissolve
1. 0 answers
2. asked by running.from.myself
3. 733 views
Hi all. I posted earlier but I'm still stuck on part of this problem.I thought that statements 2 and 3 were correct below. But I
1. 1 answer
2. asked by Jim
3. 730 views
In our lab we had to experiment with an apparatus in order to find such things as the percent of KClO_3 in the solution..Assume
1. 1 answer
2. asked by Liz
3. 729 views
Use the following situation to answer the next four questions. The formula for these questions came from the police department.
1. 0 answers
2. asked by alyssa
3. 726 views
Blood flows in an aorta of radius 4.62mm at 27.5cm/s. Calculate the volume flow rate.Relevant equation Q (volume flow) =
1. 0 answers
2. asked by aqaurius
3. 716 views
which of the following has the highest bugger capacity?A 0.10M H2PO4-/0.10M HPO4 -2 B 0.50 M H2PO4-/0.10 M HPO 2- C 0.10 M
1. 1 answer
2. asked by ameryss
3. 714 views
Assistant dean Shirin Ahmadi recommended offering more language courses.We went to the mark taper forum to see a production of
1. 2 answers
2. asked by Will
3. 707 views
A 3 m long wire carrying a current of 1 A through a magnetic field of magnitude 17 T experiences a force of 8 kN entirely due to
1. 2 answers
2. asked by Fatih
3. 705 views
What stoichiometric concentration of the indicated substance is required to obtain an aqueous solution with the pH value shown
1. 3 answers
2. asked by Ashley
3. 704 views
what did the delegates to the annapoliscovention decide the country needed
1. 1 answer
2. asked by hether
3. 702 views
Write a paragraph about the country you chose to present. The paragraph should have an introduction and conclusion and explain
1. 6 answers
2. asked by fatima
3. 694 views
help please!!! how do i write this as an algebraic expression: ten dollars more than grace has
1. 4 answers
2. asked by sue
3. 692 views
c is the midpoint of bc,bc=12, and cd 4x-8 what is the value of x
1. 1 answer
2. asked by Anonymous
3. 688 views
How do I construct an energy level diagram for the hydrogen atom. I have all the energies, but I do not know how to make the
1. 1 answer
2. asked by Jimmy
3. 687 views
HARDER PARTS WAS 3(x^2+y^2)^2=26(y^2+y^2)Find the equation of the tangent line to the curve (a lemniscate)
1. 2 answers
2. asked by MILY
3. 678 views
On some tubes of caulking, the diameter of the circularnozzle opening can be adjusted to produce lines of varying thickness. The
1. 1 answer
2. asked by Erica
3. 675 views
use the trapezoidal and simpson's rule to approximate the value of the definite integral ∫2,1 ln xdx; n=4compare your result
1. 0 answers
2. asked by wei_g
3. 671 views
A spherical scoop of ice cream has radious 1.25 inches. The scoop is placed on top of a cone with radious of 1 inch and height
1. 1 answer
2. asked by Piggy
3. 664 views
Use the following situation to answer the next four questions. The formula for these questions came from the police department.
1. 0 answers
2. asked by alyssa
3. 656 views
If I am give the the sides of a triangle, whereSide RA=4 Side AB=4.8 Side RB=7.1 How do I find Angle RAB? Thanks!
1. 1 answer
2. asked by Tommy
3. 645 views
A 2.49-m-long string, fixed at both ends, has a mass of 7.17 g. If you want to set up a standing wave in this string having a
1. 1 answer
2. asked by janny
3. 633 views
Robert has two watches, one which loses 6 seconds every 24 hours and one which gains 1 secondper hour. He sets both of them to
1. 1 answer
2. asked by Miep
3. 632 views
Describe how the principle of superposition was used in determining the relative ages of the cross-sections?
1. 3 answers
2. asked by Amanda
3. 630 views
Wheel A of radius ra = 14.6 cm is coupled by belt B to wheel C of radius rc = 30.2 cm. Wheel A increases its angular speed from
1. 2 answers
2. asked by Katie
3. 630 views
Jose was playing a game with marbles.In the first round ,he lost 1/4 of his marbles.In the Second round,he lost 1/3 of his
1. 2 answers
2. asked by Adi
3. 622 views
can you correct that for me pleas?Have you ever sat in a classroom and observed the conversational styles of the students?
1. 1 answer
2. asked by laila
3. 619 views
disregard the previous I did not include the first partThis question is typical on some driver's license exams: A car moving at
1. 1 answer
2. asked by Mrs G
3. 619 views
ms. sue i think you told shreya about biology site. there be any more sites free like that?
1. 3 answers
2. asked by Mohammad
3. 613 views
Where Q is the number of cans of tennis balls sold quarterly, P is the wholesale price Wilpen charges for a can of tennis balls,
1. 0 answers
2. asked by Diana
3. 600 views
how is emerging technology influencing healthcare? and give an example.all what i know is that they are basiclly new
1. 2 answers
2. asked by lenny
3. 599 views
I Have an assignment that requires me to design, write and carry out an analysis and a report of survey from beginning to end
1. 2 answers
2. asked by Muhammad
3. 588 views

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