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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. 5,668 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. 5,443 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. 5,150 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. 4,457 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. 3,493 views
Whom should you see at the bank if you need to borrow money?
1. 14 answers
2. asked by Alisha
3. 3,487 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. 3,422 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. 3,370 views
The only defined term of those listed is:line angle plane point
1. 1 answer
2. asked by danny
3. 3,351 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. 3,075 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. 2,799 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. 2,508 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. 2,148 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. 2,082 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. 1,848 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. 1,798 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. 1,690 views
(6x4 +4x3 - 2x2 +5) - (3x4 - 2x3 +x+4)
1. 1 answer
2. asked by Megan
3. 1,546 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. 1,508 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. 1,486 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. 1,477 views
In parallelogram DEFG m<E= 70. What is the measure of <F
1. 1 answer
2. asked by Emily
3. 1,396 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. 1,334 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. 1,292 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. 1,291 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. 1,286 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. 1,280 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. 1,207 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. 1,198 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. 1,188 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. 1,144 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. 1,141 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. 1,131 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. 1,105 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. 1,097 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. 1,051 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. 1,011 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. 997 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. 995 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. 975 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. 962 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. 947 views
express 0.00352 as p/q form
1. 2 answers
2. asked by tsraksha
3. 944 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. 941 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. 940 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. 926 views
Chlorobenzene boils at 131.8C. Use Trouton's Rule to estimate deltaH of vaporization.
1. 5 answers
2. asked by lada
3. 915 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. 912 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. 911 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. 906 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. 896 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. 893 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. 876 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. 876 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. 872 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. 869 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. 864 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. 855 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. 838 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. 834 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. 827 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. 827 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. 816 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. 808 views
What atomic orbital has the quantum numbers n = 3, l = 1, ml = -1?
1. 2 answers
2. asked by HELP
3. 792 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. 785 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. 777 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. 775 views
What is the tone in the poem "Blessing" by Imtiaz Dharker.
1. 2 answers
2. asked by Zawar
3. 772 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. 770 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. 768 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. 765 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. 763 views
(x-3)^2
1. 5 answers
2. asked by miechelle
3. 761 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. 760 views
give three examples of equipment used when heating objects
1. 2 answers
2. asked by dhruv
3. 746 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. 746 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. 742 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. 740 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. 740 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. 735 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. 730 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. 724 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. 723 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. 719 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. 714 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. 703 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. 700 views
Broad areas of folded rock layers that resemble an upside-down bowl are called
1. 2 answers
2. asked by BoB
3. 694 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. 692 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. 682 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. 680 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. 679 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. 676 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. 671 views
Multinational firms have found that they can lower borrowing costs
1. 0 answers
2. asked by Anonymous
3. 669 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. 669 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. 667 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. 667 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. 666 views

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