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2012
January

Questions Asked on January 24, 2012

Four point charges are located at the corners of a square with sides of length a . Two of the charges are +q, and two are -q.Fin
1. 1 answer
2. asked by Cooper
3. 10,114 views
Can someone explain how you get the answer b/15.Given the proportion a/b=8/15, what ratio completes the equivalent proportion
1. 12 answers
2. asked by Brandon
3. 9,831 views
Consider the curve defined by y + cosy = x +1 for 0 =< y =< 2pi....a. Find dy/dx in terms of y. *I got 1/(y-siny) but I feel
1. 1 answer
2. asked by Penny
3. 9,520 views
A geologist finds that a Moon rock whose mass is 9.97 kg has an apparent mass of 6.40 kg when submerged in water. What is the
1. 2 answers
2. asked by B
3. 7,207 views
An aqueous solution is 8.50% ammonium chloride, NH4Cl, by mass. The density of the solution is 1.024g/mL. Calculate the
1. 7 answers
2. asked by S
3. 6,352 views
A hummingbird has a mass of about 1.7 g. Suppose a hummingbird does 0.15 J of work against gravity, so that it ascends straight
1. 4 answers
2. asked by Autumn
3. 4,977 views
Calculate the energy (in kJ/mol) required to remove the electron in the ground state for each of the following one-electron
1. 2 answers
2. asked by Sarah
3. 4,872 views
You have a chemical sealed in a glass container filled with air. The glass container has a mass of 200.0 grams and the chemical
1. 2 answers
2. asked by Staci
3. 3,589 views
"Two cars are traveling along perpendicular roads, car A at 40mph, car B at 60mph. At noon, when car A reaches the intersection,
1. 1 answer
2. asked by Chris
3. 3,515 views
how many grams of sodium are used to prepare 50 boxes of crackers? sodium per serving is 140mg, serving size is .50 oz for 6
1. 3 answers
2. asked by Kelly
3. 3,074 views
Erasers cost $5 per carton and pencils cost $7 per carton. If an order comes in for a total of 15 cartons for $85, how many
1. 2 answers
2. asked by Terry
3. 2,877 views
Two point charges are fixed on the y axis: a negative point charge q1 = -26 µC at y1 = +0.21 m and a positive point charge q2
1. 1 answer
2. asked by Anne
3. 2,419 views
The point on the curve for y = sqrt(2x+1) at which tangent is perpendicular to the line y = -3x + 6 is....a. (4, 3) b. (0,1) c.
1. 1 answer
2. asked by Hanna
3. 2,367 views
Use the cofunction identities to write an expression that is equivalent to each of the following expression.a) sin(pi/6)
1. 1 answer
2. asked by Antia
3. 2,331 views
Lines A and B are perpendicular and have the same x-intercept. The equation of line A is x+2y-4=0. Determine the y-intercept of
1. 1 answer
2. asked by Alana
3. 2,311 views
Two small metal spheres of densities in the ratio 3:2 and diameters in the ratio 1:2 are released from rest in two vertical
1. 1 answer
2. asked by desh
3. 2,304 views
A stone is launched straight up by a slingshot. Its initial speed is 20.1 m/s and the stone is 1.30 m above the ground when
1. 1 answer
2. asked by Ali
3. 2,281 views
a rock climber weights 550N and is carrying a backpack that weighs 50N. how much total work has been done after she climbs 12m
1. 1 answer
2. asked by Anonymous
3. 2,231 views
what is the width and length of a box that is 315 cu. units?
1. 1 answer
2. asked by Anonymous
3. 2,104 views
Knowing that delta Hvap for water is 40.7 kJ/mol, calculate Pvap of water at 46 C
1. 2 answers
2. asked by Help
3. 1,940 views
Let a man know his worth, and keep things under his feet. Let him not peep or steal. Or skulk up and down with the air of a
1. 1 answer
2. asked by Bobbii
3. 1,898 views
A preposition relates a noun or pronoun to another word in a sentence.A prepositional phrase begins with a preposition and ends
1. 10 answers
2. asked by Andrew
3. 1,743 views
Find the volume of the solid generated by revolving the triangular region with vertices (1,1), (b,1), and (1,h) about:a) the
1. 2 answers
2. asked by Morgan
3. 1,667 views
The center of a circle is A(-3,3) an B(1,6) is in the circle. Find the area of the circle in terms of pi.a^2 + b^2 = c^2 radius
1. 1 answer
2. asked by J.R.
3. 1,645 views
How do I solve this?A mixture of nuts has a ratio of 5 parts peanuts to 3 parts cashews. How many ounces of cashews are in a 24
1. 1 answer
2. asked by Linda
3. 1,572 views
At a picnic, there is a contest in which hoses are used to shoot water at a beach ball from three different directions. As a
1. 1 answer
2. asked by Amy
3. 1,535 views
What is the empirical formula for a compound which contains 67.1 percent zinc and the rest is oxygen
1. 4 answers
2. asked by Wendy
3. 1,527 views
What would the tone be for the poem "Harlem" by Langston Hughes?
1. 1 answer
2. asked by Anonymous
3. 1,462 views
What effect will the current governmental initiatives that focus on expanding health care coverage to more Americans have on
1. 1 answer
2. asked by christine
3. 1,365 views
A 10.0 mL volvume of Ultra Bleach is diluted in a volumetric flask. A 25.0 ml sample of this solution is analyzed accordign to
1. 1 answer
2. asked by Ashley
3. 1,357 views
a sealed cylinder of a gas contains nitrogen gas at 1.00*10^3 kPa pressure and a temperature of 20C. They cylinder is left in
1. 1 answer
2. asked by Skye
3. 1,314 views
Find the volume of the solid generated by revolving the following region about the given axis. The region in the first quadrant
1. 1 answer
2. asked by Becca
3. 1,312 views
Firm A and firm B have debt-total asset ratios of 35% and 30% and ROA of 12% and 11%, respectively. Which firm has a greater
1. 2 answers
2. asked by Sally
3. 1,296 views
Calculate the average rate of change of the given function over the given interval. Where appropriate, specify the units of
1. 2 answers
2. asked by Jazmin (please help)
3. 1,286 views
how many integer values are there for K for which 4X squared plus KXY minus 9Y squared is factorable
1. 1 answer
2. asked by Anonymous
3. 1,283 views
Which of the following equations represents a reaction for which the delta H can be called a standard enthalpy of formation,
1. 1 answer
2. asked by timmy
3. 1,282 views
A sample of carbon monoxide gas whose mass is 6.37 g is heated from 25 oC to 192 oC at a constant pressure of 4.12 bar.Calculate
1. 1 answer
2. asked by David
3. 1,272 views
A final exam in Math 160 has a mean of 73 with standard deviation 7.73. Assume that a random sample of 24 students is selected
1. 1 answer
2. asked by dan
3. 1,264 views
Calculate the value of DHo for the reaction 2 CH4 (g) -> C2H6 (g) + H2 (g) given the following thermochemical equations:C2H2 (g)
1. 3 answers
2. asked by timmy
3. 1,233 views
Can you please help me with a math problemSuppose the ball was 3.24 feet above ground when it was hit, and that it reached a
1. 2 answers
2. asked by Armun
3. 1,177 views
how hot would a copper wire need to be for its resistance to be 2% larger than its value at room temperature (20 Centigrade)?
1. 1 answer
2. asked by skills
3. 1,127 views
In September the ratio of the amount Ray spent and the amount he saved was 4:1. In October, he got a salary raise. He in creased
1. 1 answer
2. asked by Jessie
3. 1,126 views
Could you please quickly check this sentence? Thank you very much.1) The project is mainly centred on the cooperation among
1. 1 answer
2. asked by Henry2
3. 1,121 views
A certain microwave oven delivers 633 watts (J/s) of power to a coffee cup containing 53.1 g of water at 25°C. If the
1. 1 answer
2. asked by Sarah
3. 1,109 views
A researcher wishes to estimate the mean height of women aged between 60 and 65 in the US. She desires a margin of error of 0.2
1. 0 answers
2. asked by dan
3. 1,094 views
I tried this and needed to graph. But, I want to find out what I did incorrect.Suppose that a car rental agency gave you the
1. 1 answer
2. asked by Algebra88
3. 1,086 views
Mike pulls a 4.5 kg sled across level snow with a force of 250 N along a rope that is 35.0° above the horizontal. If the sled
1. 1 answer
2. asked by Jacqueline
3. 1,081 views
Suppose you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to
1. 2 answers
2. asked by becca
3. 1,076 views
The electric flux through each of the six sides of a rectangular box are as follows:phi 1= +150.0 N*m^2/C; phi 2= +250.0
1. 1 answer
2. asked by Cooper
3. 1,063 views
An object with a charge of -4.4 uC and a mass of 1.4×10^−2 kg experiences an upward electric force, due to a uniform electric
1. 0 answers
2. asked by Cooper
3. 1,058 views
How did Roosevelt deal with France in the beginning of world war 11
1. 2 answers
2. asked by Austin
3. 1,055 views
A sample of steam with a mass of .550 g and at a temperature of 1 degrees C condenses into an insulated container holding 4.40 g
1. 4 answers
2. asked by Becca
3. 1,049 views
Select an organization with which you are familiar and discuss the impact of that organization’s level of social
1. 2 answers
2. asked by Lashonda
3. 1,040 views
A +5.0 uC charge experiences a 0.44 N force in the positive y direction. If this charge is replaced with a -2.7 uC charge, what
1. 0 answers
2. asked by Cooper
3. 1,026 views
1. Compare and contrast the cultures of two native tribes. Tell what you did to communicate the United States' sovereignty in
1. 6 answers
2. asked by Anonymous
3. 1,021 views
I don't get transitive verbs.In the sentence "Some reach a height of 120 feet," I was told it was transitive. But why? I'm
1. 2 answers
2. asked by Jazmine
3. 1,014 views
5. A 2.00-kg block hangs from a rubber cord, being supported so that the cord is not stretched. The unstretched length of the
1. 1 answer
2. asked by arjunsareen
3. 1,007 views
In case of Admission:Given a balance sheet as at 31 Dec 2008. The new partner was admitted on 1 Jan 2009. Goodwill was agreed at
1. 0 answers
2. asked by sniper
3. 999 views
What were the conditions onthe holding parts of the ships where the slaves were stacked?
1. 3 answers
2. asked by Brianna
3. 988 views
Heights of young adult U.S. women are approximately normal with mean 64" and standard deviation 2.7". What proportion of all
1. 1 answer
2. asked by Ashley
3. 973 views
A copper (Cu) weight is placed on top of a 0.24 kg block of wood (density = 0.60*10^3 kg/m3) floating in water. What is the mass
1. 0 answers
2. asked by Anon
3. 972 views
A line intersects the graph of y=x^2 twice. One point has an x-coordinate of -4, and the other point has an x- coordinate of 2.A
1. 2 answers
2. asked by Anonymous
3. 969 views
Calculate the energy (in kJ/mol) required to remove the electron in the ground state for each of the following one-electron
1. 1 answer
2. asked by Sarah
3. 964 views
How could measuring the orbit of a comet help scientists understand when it will next be visible from earth?
1. 0 answers
2. asked by jakayla
3. 959 views
A community has just built a street across a strike slip fault that has frequent earthquakes. How will movement along the fault
1. 0 answers
2. asked by Cassie
3. 916 views
How many milliliters of 16.0 M HNO3 stock solution wouuld be required to prepare 100.0mL of 3.00 M HNO3?Use the formula
1. 2 answers
2. asked by missy
3. 913 views
What Japanese art form, meaning "pictures of the floating world," was created using woodblock prints and greatly impacted
1. 5 answers
2. asked by tracy
3. 897 views
I urgently need you to check this part for me. Thank you very much for your cooperation.1) I go on the internet every day to
1. 1 answer
2. asked by Henry2
3. 897 views
I have no idea on how to get started.If you do not consider air resistance, gravity causes a falling object to descend a
1. 3 answers
2. asked by Challenge Problem Math Help Please
3. 897 views
please unscramble licbohe, sequi, lanesbocto, taaconni, taquenioic, anitpaje, nigmisaa, ufblot marocneai
1. 2 answers
2. asked by destini
3. 870 views
In case of Admission:Given a balance sheet as at 31 Dec 2007. The new partner was admitted on 1 Jan 2007. Goodwill was agreed at
1. 0 answers
2. asked by sniper
3. 856 views
A uniform steel chain 20 m long and with a mass of 5 kg per m, hangs vertically. Compute the work required to wind it up
1. 1 answer
2. asked by joan
3. 851 views
Suppose the ball was 3.24 feet above ground when it was hit, and that it reached a maximum height of approximately 102.51 feet
1. 1 answer
2. asked by HUNU
3. 848 views
how could measuring the orbit of a comet help scientists understand when it will next be visible from earth
1. 0 answers
2. asked by henry dennis jr
3. 848 views
iNeed Help Writing A *Parts Of Speech* Poem?_? HELP!! (;
1. 5 answers
2. asked by Kaidence
3. 845 views
Can somone please explain how to do this problem:How many cubic centimeters of olive oil have the same mass as 1.00L of
1. 2 answers
2. asked by Kelly
3. 832 views
How many grams of butane must be burned to provide the heat needed to melt a 85.0-g piece of ice (at its melting point) and
1. 6 answers
2. asked by David
3. 832 views
A golfer, putting on a green requires three strokes to “hole the ball.” During the first putt, the ball roles 5.0m due east.
1. 1 answer
2. asked by Amy
3. 826 views
Scientists call a theory that unites many ideas in a simple way "beautiful." Are unity and simplicity among the criteria of
1. 1 answer
2. asked by Anonymous
3. 821 views
The electric field at the point x=5.00 cm and y=0 points in the positive x direction with a magnitude of 10.0 N/C. At the point
1. 0 answers
2. asked by Cooper
3. 803 views
What are the nouns and verbs in the sentence The Lord is my strength and my salvation; in him I will trust.
1. 1 answer
2. asked by cathy
3. 802 views
A 42.0 kg girl jumps on a trampoline. After stretching to its bottom limit, the trampoline exerts an average upward force on the
1. 0 answers
2. asked by Anonymous
3. 800 views
Two point charges, the first with a charge of +3.19×10^−6 C and the second with a charge of -4.32×10^−6 C , are separated
1. 0 answers
2. asked by Cooper
3. 798 views
A model rocket is shot straight up from the roof of a school. The height at any time t is approximated by the model
1. 1 answer
2. asked by Jen
3. 791 views
If f(x) = xe^-x then at x=0 is f increasing, decreasing, relative max, relative min or that f' doesn't exist?I'm not sure, but I
1. 1 answer
2. asked by jules
3. 779 views
Select the Japanese figure of the feudal warrior society whose role was similar to that of the knight in Medieval Europe.I say
1. 5 answers
2. asked by tracy
3. 774 views
A ship, carrying freshwater to a desert island in the Caribbean, has a horizontal cross-sectional area of 2800 m2 at the
1. 0 answers
2. asked by HELP ME
3. 765 views
How much energy (in kJ) is released when 16.4 g of steam at 121.5 degrees C is condensed to give liquid water at 60.5 degrees C?
1. 1 answer
2. asked by Becca
3. 760 views
An airplane is flying horizontally at 115 m/s, at a 20.5 degree angle north of east. State its velocity in rectangular
1. 2 answers
2. asked by chris
3. 759 views
Boone led many pioneers through the ____, arcross the Appalachian Mountains.
1. 3 answers
2. asked by Andrew
3. 755 views
4(m+7)=6m+58
1. 1 answer
2. asked by Samantha
3. 753 views
if angle aob=4x+15 and aoc=3x+25, find the degree measures of angle aob and angle aoc
1. 1 answer
2. asked by cecilia
3. 748 views
A shotputter throws the shot with an initial speed of 16.0 m/s at a 43.0 angle to the horizontal. Calculate the horizontal
1. 0 answers
2. asked by Shawnee
3. 741 views
a sucrose solution with a volume of B uL has a density of C g/ml. the solution is D % sucrose by mass. if i added x ml of this
1. 1 answer
2. asked by neece
3. 740 views
A person jumps off a 20m high cliff into water below. The height of the person above the ground at time t seconds is given by
1. 1 answer
2. asked by Amy
3. 723 views
there is 2 freshmen, 4 sophomores, 8 juniors, and 15 seniors. A local television station wants to interview 8 students from the
1. 0 answers
2. asked by kyille
3. 723 views
Trucks are required to pass through a weighting station so. ... aweighting station so that they can be checked for weight
1. 0 answers
2. asked by Anonymous
3. 713 views
if a car goes from 10 m/s to a full stop,then its change in velocity is 10m/s.if it decelerates at a rate of 2.5 m/sec square,it
1. 1 answer
2. asked by farhan
3. 713 views
Mr. Browne bought six shirts at the same sale. They had been marked $31 each. How much did he save on the six shirts?
1. 1 answer
2. asked by karly
3. 706 views
What are three biological molecules that have carbon backbone???(molecules that are found in the human body)
1. 1 answer
2. asked by Anonymous
3. 703 views

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