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2011
April

Questions Asked on April 13, 2011

You have 500.0 mL of a buffer solution containing 0.30 M acetic acid (CH3COOH) and 0.20 M sodium acetate (CH3COONa). What will
1. 3 answers
2. asked by Nicole
3. 5,678 views
If the temperature is constant, then the atmospheric pressure P (in pounds/square inch) varies with the altitude above sea level
1. 5 answers
2. asked by Anonymous
3. 5,461 views
he world population at the beginning of 1990 was 5.3 billion. Assume that the population continues to grow at the rate of
1. 2 answers
2. asked by Anonymous
3. 5,162 views
The average teachers salary in Connecticut( ranked first among states) is $57,337. suppose that the distribution of salaries is
1. 3 answers
2. asked by Jennifer
3. 4,475 views
What pressure difference is required between the ends of a 2.0--long, 1.0--diameter horizontal tube for 40 water to flow through
1. 1 answer
2. asked by Liz
3. 3,516 views
Whom should you see at the bank if you need to borrow money?
1. 14 answers
2. asked by Alisha
3. 3,512 views
How much force is the air exerting on the front surface of the book with dimensions 19 x 27 cm. Assume atmospheric pressure
1. 1 answer
2. asked by ann
3. 3,436 views
Speed of Asteroids With the same Radius?Two spherical asteroids have the same radius R . Asteroid 1 has mass M and asteroid 2
1. 2 answers
2. asked by Dan
3. 3,395 views
The only defined term of those listed is:line angle plane point
1. 1 answer
2. asked by danny
3. 3,367 views
Hello,Suppose that a newly discovered element called centium has three isotopes that occur in nature. These are centium-200,
1. 4 answers
2. asked by Please help!
3. 3,099 views
How does the strength of the attraction between water molecules and sodium and chloride ions compare with the strength of the
1. 1 answer
2. asked by Guillermo
3. 2,819 views
A car travels along a straight road, heading east for 1 h, then traveling for 30 min on another road that leads northeast. If
1. 2 answers
2. asked by Jessica
3. 2,529 views
a 1000 kg car traveling at 30 m/s suddenly stops in 5 seconds. how much force was used to stop the car?
1. 3 answers
2. asked by Kay
3. 2,171 views
a) How would a too low molarity of NaOH affect the calculated molar mass of the unknown acid? b) How would it affect the
1. 3 answers
2. asked by Barbara
3. 2,095 views
In the figure below find the electric potential at point P due to the grouping of charges at the other comers of the rectangle.Q
1. 2 answers
2. asked by c harlene
3. 1,867 views
(1 pt) A box contains 25 yellow, 28 green and 38 red jelly beans.If 13 jelly beans are selected at random, what is the
1. 1 answer
2. asked by Hannah
3. 1,818 views
what is the answer to algebra with pizzazz page 100; what should you say if you see a tall, wrought-iron tower in paris, france?
1. 6 answers
2. asked by tiffany
3. 1,719 views
(6x4 +4x3 - 2x2 +5) - (3x4 - 2x3 +x+4)
1. 1 answer
2. asked by Megan
3. 1,561 views
In the emission spectrum of hydrogen what is thewavelength of the light emitted by the transition fro m n = 4 to n =2.
1. 3 answers
2. asked by HELP
3. 1,530 views
A parallelogram ABCD has lengths of sides and angles given below. Find the length of the diagonals AC and BD. (Round your
1. 1 answer
2. asked by Jessica
3. 1,503 views
compound and interestUsing the below values please calculate the amount accumulated (future value) *Initial principal=$2000
1. 2 answers
2. asked by John
3. 1,498 views
In parallelogram DEFG m<E= 70. What is the measure of <F
1. 1 answer
2. asked by Emily
3. 1,410 views
Why wouldn't HCl be a good acid to use to determine the solubility of a silver precipitate in acid solution?
1. 2 answers
2. asked by Nicole
3. 1,350 views
A social psychologist was interested in how communication patterns can affect creative problem solving in small groups. seven
1. 2 answers
2. asked by Caitlin
3. 1,314 views
for this questionHow many liters of H2 gas at STP are produced when Zn reacts with 125 mL of 6.00 M HCl? my book answers it this
1. 1 answer
2. asked by Blain
3. 1,310 views
All diagonals from a single vertex of a hexagon are drawn. Four triangles will result.True False true?
1. 2 answers
2. asked by danny
3. 1,307 views
Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of MgSO3 and HI are mixed
1. 1 answer
2. asked by Anonymous
3. 1,297 views
What is the main idea and list a least 2 details about the main idea?Edwin Hubble came up with a way to classify galaxies by
1. 8 answers
2. asked by Frances
3. 1,218 views
Suppose x and y are real numbers such that xy = 9 and x2y + xy2 + x + y = 100. What is the integer value of x2 + y2? (Target
1. 1 answer
2. asked by Anonymous
3. 1,213 views
You want to make an open-ended flute, open at both ends, with fundamental frequency (lowest pitch sound it produces) of 680 Hz.
1. 1 answer
2. asked by ECU
3. 1,209 views
What are some high level questions about the moon? Please put at least 4.What are some high level questions for this passage?
1. 2 answers
2. asked by Catherine
3. 1,161 views
Surveys on job satisfaction reveal that well over this percentage of American workers are dissatisfied with their jobsA. 10 B.
1. 3 answers
2. asked by Alondra
3. 1,160 views
which one of the following activities is considered part of health care operations? a. reviewing the competency of health care
1. 5 answers
2. asked by sarah
3. 1,159 views
Finding a Lunar lander's Thrust?A 6000kg lunar lander is in orbit 50km above the surface of the moon. It needs to move out to a
1. 0 answers
2. asked by Dan
3. 1,127 views
Can someone help? Very confused. . .John Sununus was once the governor of New Hampshire, and his name reminds one of the authors
1. 1 answer
2. asked by Francesca
3. 1,117 views
A car experiences rolling (tractive) friction with coe�cient of friction mut = 0.0200, and turbulent-flow (bv^2) drag, with drag
1. 0 answers
2. asked by Cecille
3. 1,076 views
The top string of a guitar has a fundamental frequency of 300 Hz when it is allowed to vibrate as a whole, along all its 60.0 cm
1. 1 answer
2. asked by ECU
3. 1,032 views
Two point charges of equal magnitude are 8cm apart. at the midpoint of the line connecting them, their combined electric field
1. 1 answer
2. asked by ike
3. 1,028 views
What concentration of ammonia, [NH3], should be present in a solution with [NH4+]= 0.734M to produce a buffer solution with pH=
1. 2 answers
2. asked by rooftops
3. 1,014 views
Why do most of the sample means differ somewhat from the population mean? What is this difference called?
1. 2 answers
2. asked by Jennifer
3. 991 views
A plane flies due west at 250 km/hour while the wind blows south at 70 km/hour. Find the planes resultant velocity and
1. 0 answers
2. asked by Zene
3. 984 views
Did I answer these correctly?¿Qué necesitas para jugar al tenis? Necesito una raqueta y una pelota de tenis para jugar al
1. 2 answers
2. asked by Katie
3. 964 views
express 0.00352 as p/q form
1. 2 answers
2. asked by tsraksha
3. 963 views
A 1.0 KΩ resistor is connected in series with a 10.0 mH inductor, a 30.0 V battery, and an open switch. At time t=0, the
1. 1 answer
2. asked by Sam
3. 957 views
An air compressor is a device that pumps air particles into a tank. A particular air compressor adds air particles to its tank
1. 1 answer
2. asked by ann
3. 952 views
A 40 kg weight is suspended at P which is held up By the ropes PQ and PR the ropes make angles at 160 degrees and 130 degrees
1. 0 answers
2. asked by confused
3. 951 views
Chlorobenzene boils at 131.8C. Use Trouton's Rule to estimate deltaH of vaporization.
1. 5 answers
2. asked by lada
3. 941 views
On a sunny day, a tree casts a shadow 60 feet long. At the same time, a yardstick casts a shadow 2 feet long. How tall it the
1. 1 answer
2. asked by Kenzay
3. 939 views
If a burning log is a black object with a surface area of 0.35 m2 and a temperature of 800 ˚C, how much power does it emit as
1. 0 answers
2. asked by ann
3. 928 views
A popular online retailer sells a wide variety of products including books. The proportion of customers that order only books is
1. 2 answers
2. asked by Jim
3. 922 views
A 120-V rms voltage at 1000 Hz is applied to a resistor and an inductor in series. If the impedance of this circuit is 110 Ù,
1. 1 answer
2. asked by Jen
3. 922 views
Calculate the equilibrium vale of Pb +2 (aq) in 1.00 L of saturated PbCl2 solution to which 0.250 mole of NaCl has been added.
1. 1 answer
2. asked by Carlos
3. 908 views
A 24 rifle bullet traveling 230 buries itself in a 3.9 pendulum hanging on a 3.0 long string, which makes the pendulum swing
1. 0 answers
2. asked by Cara
3. 898 views
The 3.0 -diameter water line in the figure splits into two 1.0 -diameter pipes. All pipes are circular and at the same
1. 0 answers
2. asked by Eliz
3. 895 views
A 2-pint bottle of soy sauce costs $1.79. If the unit price remains the same, how much wi 2 gallons of soy sauce cost?
1. 2 answers
2. asked by Nick
3. 890 views
A galvanic cell is constructed with a silver-silver chloride electrode, and a nickel strip immersed in a beaker containing 4.97
1. 0 answers
2. asked by jasmin
3. 889 views
An induced emf occurs in a conducting loop of wire 1.12 m long as its shape is changed from square to circular. What is the
1. 0 answers
2. asked by pHysicsLoVer
3. 886 views
a roof rises 2.4 feet vertically and 7.3 feet horizontally. what is the grade of the roof?
1. 0 answers
2. asked by Meg
3. 870 views
If you are writing an essay, and in the title of your essay, you have the title of a novel, does the title of the novel have to
1. 2 answers
2. asked by Megan
3. 859 views
PROJECTILE LAUNCHED FROM EARTH'S SURFACE?A projectile is shot straight up from the earth's surface at a speed of
1. 0 answers
2. asked by Dan
3. 855 views
I'm having some trouble trying to program these problems and putting them into the main function. Please help me by giving some
1. 2 answers
2. asked by Milo
3. 847 views
Suppose that the population of a certain townis made up of 45% of men and 55% of women. Of the men, 40% wear glasses, abd of the
1. 1 answer
2. asked by Anonymous
3. 839 views
The intensity of sound is x W/m2 at a distance of 5 m from the source. What is the intensity of the sound at a distance of 20 m
1. 1 answer
2. asked by ashley --
3. 832 views
When the frequency of a force applied to a system matches the natural frequency of vibration of the system, it starts vibrating
1. 0 answers
2. asked by ashley --
3. 823 views
Career patterns are determined byA. Mental ability B. Socioeconomic level C. Personality characteristics D. limitations E. all
1. 0 answers
2. asked by Alondra
3. 821 views
What atomic orbital has the quantum numbers n = 3, l = 1, ml = -1?
1. 2 answers
2. asked by HELP
3. 812 views
a) How would a too low molarity of NaOH affect the calculated molar mass of the unknown acid? b) How would it affect the
1. 1 answer
2. asked by Barbara
3. 800 views
f) Two capacitors, 3.0F and 4.0F, are individually charged across a 6.0V battery. After being disconnected from the
1. 0 answers
2. asked by Ziera
3. 794 views
a teacher allows 5/6 of an hour to be spent on homework, she wants to spend 1/3 of that tome on math. how much time will be
1. 2 answers
2. asked by emma
3. 794 views
Waves of all wavelengths travel at the same speed v on a given string. Traveling wave velocity and wavelength are related by
1. 0 answers
2. asked by ECU
3. 790 views
The equation of motion of a particle in vertical SHM is given by y = (17 cm) sin 0.70t. (a) What is the particle's displacement
1. 0 answers
2. asked by anonymous
3. 788 views
if an institutional review board is involved in a request for information, the information is likely sought by aa. health care
1. 1 answer
2. asked by sarah
3. 785 views
What is the tone in the poem "Blessing" by Imtiaz Dharker.
1. 2 answers
2. asked by Zawar
3. 785 views
I have never had algebra and cannot figure out how to work through the problem below[(x + 1)² - (2x + 1)]1/2 + 2|x| - 6 = 0 Can
1. 2 answers
2. asked by Coni
3. 785 views
(x-3)^2
1. 5 answers
2. asked by miechelle
3. 775 views
I invested $42,000 in three funds paying 5%, 7%, and 9% simple interest. The total annual interest from these investments was
1. 0 answers
2. asked by Darrell
3. 773 views
give three examples of equipment used when heating objects
1. 2 answers
2. asked by dhruv
3. 770 views
Water is leaking out of an inverted conical tank at a rate of 1100.0 cubic centimeters per min at the same time that water is
1. 3 answers
2. asked by Cecille
3. 761 views
1. Nous sommes allés faire du ski2. Nous avons quitté Strasbourg assez tard 3. Nous avons dû passer la nuit à Lyon 4. Nous
1. 0 answers
2. asked by Gracie
3. 761 views
A 2.4 m long rod of mass m1 = 11.0 kg, is supported on a knife edge at its midpoint. A ball of clay of mass m2 = 5 kg is dropped
1. 0 answers
2. asked by Kayla
3. 758 views
The weights of boxes of Brand Z cereal were found to be normally distrubted with a mean of 16.5 ounces and a standard deviation
1. 1 answer
2. asked by shirley
3. 754 views
Use Newton's method to solve the equation sec x = 4 in the interval x in (0, pi/2).In other words, use Newton's Method to
1. 2 answers
2. asked by Anonymous
3. 753 views
If you submerge an 5-kg log in water and it displaces 6 kg of water, what will the net force on the log be the moment you let go
1. 1 answer
2. asked by ann
3. 753 views
(A) Name the three organizations that are made up mostly of farmers(1) (2) (3) (B) Explain how each organization works to help
1. 2 answers
2. asked by sareh
3. 744 views
Two identical conducting spheres, fixed in place, attract each other with a force of 0.114 N when their center to center
1. 0 answers
2. asked by Bill
3. 743 views
Hello. I've already asked this question but I'd like to clarify if the sentence "Suggest your local radio stations play our
1. 1 answer
2. asked by Ilma
3. 740 views
Hi, I have a calculus test tomorrow and I understand how to complete all of the problems, but I am unsure behind the reasoning
1. 1 answer
2. asked by Jake
3. 735 views
describe the hazards you should be aware of when you use 2.0 M HCl solution
1. 1 answer
2. asked by Abdul
3. 733 views
Could someone please help me with this question?What is the relationship to the law and the government structure as it applies
1. 3 answers
2. asked by Helen
3. 714 views
Broad areas of folded rock layers that resemble an upside-down bowl are called
1. 2 answers
2. asked by BoB
3. 710 views
Calculate the amount of heat required to raise the temperature of a 33 g sample of water from 6 Celsius to 24 Celsius.
1. 2 answers
2. asked by Kate
3. 710 views
1. The acting of the lead actor was great.2. The main actor's acting was terrific. 3. The actings of some actors and actresses
1. 4 answers
2. asked by rfvv
3. 703 views
Many writers create characters who are blissfully unaware of how they are perceived by others. One of the most complex examples
1. 5 answers
2. asked by Amy
3. 696 views
The guitar is a musical instrument of the chordophone family, being a stringed instrument played by plucking. The tone of an
1. 0 answers
2. asked by ECU
3. 695 views
A 975 N object is pulled at a constant velocity up an incline with a force of 327 N parallel to the incline as shown in the
1. 0 answers
2. asked by Jeremy
3. 695 views
a triangle is a figure formed by three segments connecting three collinear points true or false?
1. 1 answer
2. asked by cassie
3. 695 views
Calcultate the volume (in mL)of 0.250M silver nitrate solution required to react completely with a 5.00g piece of copper wire.
1. 1 answer
2. asked by Tinkerbell
3. 689 views
of the following types of information, which one has the strictest rules regarding the release of informationg?a. substance
1. 1 answer
2. asked by sarah
3. 687 views
is the answer to my equation right?equation: 5(3r-7)+r=3(r-3) 15r-35+r=3r-9 15r+r-3r=-35-9 13r/13 = -44/13
1. 3 answers
2. asked by brooke
3. 686 views
I had to miss a lab yesterday. Do you know of a website where I can virtually prepare methyl salicylate (oil of wintergreen)?
1. 1 answer
2. asked by Stephanie
3. 685 views

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