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2011
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Questions Asked on March 10, 2011

if 8.6L of H2 reacted with 4.3L of O2 at STP, what is the volume of gaseous water collected (assuming none of it condenses)?
1. 3 answers
2. asked by Anonymous
3. 7,469 views
The drawing shows a version of the loop-the-loop trick for a small car. If the car is given an initial speed of 4.6 m/s, what is
1. 2 answers
2. asked by Amanda
3. 5,838 views
A 3.00 kg block starts from rest at the top of a 30° incline and accelerates uniformly down the incline, moving 1.94 m in 1.70
1. 2 answers
2. asked by justin
3. 5,723 views
How do I use the sigma notation to express the series : 1+5+25+125+625+3125?
1. 2 answers
2. asked by Leonard
3. 4,824 views
A boat sailing from A to B travels in a straight line until the captain realizes he is off course. The boat is turned through an
1. 7 answers
2. asked by Connor
3. 4,578 views
an investment of 72,000 was made by a business club. the investment was split into three parts and lasted for one year. the
1. 1 answer
2. asked by Sarah
3. 4,309 views
When the equation Cl2 ---> Cl- + ClO3- (basic solution) is balanced using the smallest whole-number coefficients, the
1. 2 answers
2. asked by DarcY H
3. 4,108 views
Find the polynomial function P of the lowest possible degree, having real coefficients, with the given zeros.3+2i, -2 and 1
1. 1 answer
2. asked by Tim
3. 3,814 views
A mother wants to invest $9,000.00 for her son’s future education. She invents a portion of the money in a bank certificate of
1. 2 answers
2. asked by MARIAH
3. 3,319 views
A 50.0 kg diver steps off a diving board and drops straight down into the water. The net force when in the water is an upward
1. 4 answers
2. asked by Becky
3. 3,198 views
What is the concentration of a HNO3 solution if 10.0 mL of the solution is neutralized by 3.6 mL of a 0.20 M NaOH solution?
1. 4 answers
2. asked by NADIA
3. 3,191 views
How many moles of helium are contained in a 5.00-L canister at 101 kPa and 30.0 degrees Celsius? I don't understand how to get
1. 2 answers
2. asked by Walker
3. 3,036 views
The popultion of Medford High is 800 students & the population of WEstville High is 1240 students. Medfords pop. has been
1. 1 answer
2. asked by Casey
3. 2,769 views
the average length of time for students to register for fall classes at a certain college has been 50 minutes. a new
1. 1 answer
2. asked by Jacy
3. 2,401 views
The power P needed to propel a boat is directly proportional to the cube of the speed of the boat. A 100 hp engine is needed to
1. 1 answer
2. asked by Jeremiah
3. 2,374 views
The pH of a 0.0642 M solution of a monoprotic acidis 3.86. Is this a strong acid?
1. 1 answer
2. asked by kalyanmith
3. 2,347 views
The poH of a solution of 0.25mol/dm3 of Hcl acid is
1. 1 answer
2. asked by peter onoriode
3. 2,309 views
sandy is making a closed rectangular jewwellery box with a square base from two different woods . the wood for top and bottom
1. 2 answers
2. asked by Anonymous
3. 2,305 views
What is the volume of 0.05-molar HCl that is required to neutralize 50 ml of a 0.10-molar Mg(OH)2 solution?
1. 2 answers
2. asked by Abe
3. 2,092 views
Find d^2x/dt^2 as a function of x if dx/dt=4xcosx.
1. 2 answers
2. asked by Patrick
3. 2,036 views
I need some help with this specific question. In a computer catalog, a computer monitor is listed as being 19 inches. This
1. 3 answers
2. asked by Celina
3. 1,996 views
A rectangular rose garden will be surrounded by a brick wall on three sides and by a fence on the fourth side. The area of the
1. 2 answers
2. asked by Anonymous
3. 1,942 views
The function y=Asin (sqrt(k/m)t) represents the oscillations of a mass m at the end of a spring. The constant k measures the
1. 2 answers
2. asked by Cady
3. 1,852 views
An eight turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of 30.0 cm. The coil lies in the
1. 2 answers
2. asked by Stefan
3. 1,782 views
Aldo has feet of fencing. He will use it to form three sides of a rectangular garden. The fourth side will be along a house and
1. 2 answers
2. asked by April
3. 1,777 views
HA and HB are both weak acids although HB is thestronger of the two. Will it take a larger volume of a 0.10 M NaOH solution to
1. 2 answers
2. asked by sovanna
3. 1,742 views
"A voltaic cell is constructed by immersing a strip of sillver metal in a 1.0 MAgNO3 solution and a strip of cadmium metal in a
1. 2 answers
2. asked by todd
3. 1,741 views
A block of weight 200N rest on a rough horizontal table when the block just begin slip the pulling force found to be 40N,what
1. 3 answers
2. asked by peter onoriode
3. 1,673 views
How many grams of Ammonia, NH3 can be made from 250. grams of N2(g) ?( first Balance the equation) N2 (g) + H2 (g) > NH3 (g)
1. 1 answer
2. asked by Dupree
3. 1,630 views
A 25.0cm^3 aliquot of a solution containing Fe2+ ions and Fe3+ ions was acidified and titrated against KMnO4 solution. 15.0cm^3
1. 1 answer
2. asked by tam
3. 1,578 views
How much work must be done to accelerate a baton from rest to an angular speed of 7.27 rad/s about its center? Consider the
1. 1 answer
2. asked by Megan
3. 1,570 views
The solubility product for Zn(OH)2 is 3.0x10^-16. The formation constant for the hydroxo complex,Zn(OH)4^2- , is 4.6x10^17. What
1. 1 answer
2. asked by kris
3. 1,555 views
The base length of the triangle with vertices A(1,1, B(9,1), C(5,5)is multipliend by 2.Describe the effect of the change on the
1. 2 answers
2. asked by Carmen
3. 1,546 views
Calculate the amount of energy released when Butane is burned.
1. 1 answer
2. asked by Travis
3. 1,528 views
A photogrpaher points a camera at a windows in a nearby building forming an angle of 42 degrees with the camera platform. If the
1. 1 answer
2. asked by K.C
3. 1,525 views
ryan is 5 feet tall. his shadow is 9 feet long and the shadow of a building is 36 feet long. how tall is the building?
1. 2 answers
2. asked by ronal
3. 1,466 views
The density of a 4.41-m long rod can be described by the linear density function λ(x) = 111 g/m + 12.3x g/m2. One end of the
1. 0 answers
2. asked by Emily
3. 1,399 views
how much of a 0.225 M KCl solution contains 55.8g of KCl
1. 2 answers
2. asked by moises
3. 1,362 views
Recently, a case of food poisoning was traced to a particular restaurant chain. The source was identified and corrective actions
1. 0 answers
2. asked by Bill
3. 1,344 views
A proper lifetime of a certain particle is 100.0ns. a) How long does it live in the lab frame if it moves atV=0.960c? b) How far
1. 0 answers
2. asked by libby
3. 1,334 views
Like water, liquid ammonia undergoes autoionization:(a) Identify the Brønsted acids and Brønsted bases in this reaction. (b)
1. 1 answer
2. asked by sok
3. 1,330 views
American Food Services, Inc., leased a packaging machine from Barton and Barton Corporation. Barton and Barton completed
1. 1 answer
2. asked by Jessica
3. 1,300 views
how much of a 0.225 M KCl solution contains 55.8g of KCl
1. 1 answer
2. asked by moises
3. 1,288 views
A proper lifetime of a certain particle is 100.0ns. a) How long does it live in the lab frame if it moves atV=0.960c? b) How far
1. 2 answers
2. asked by libby
3. 1,280 views
How many grams of Ammonia, NH3 can be made from 250. grams of N2(g) ?
1. 2 answers
2. asked by Dupree
3. 1,276 views
A sample of helium gas has a volume of 325L at 25C and at 5atm. At what temperature the gas can be compressed at 50atm to a
1. 2 answers
2. asked by twynna
3. 1,263 views
If 5/8 of the apples are red,and the rest of the apples are green,what fraction of the apples are green?
1. 2 answers
2. asked by Anonymous
3. 1,254 views
Quadrilateral ABCD is a rhombus with diagonals AC and BD. if angle M equals 25 find the measures of angles 2 , 3 , 4 and 5
1. 4 answers
2. asked by justin
3. 1,227 views
A car is driven east for a distance of 49 km, then north for 21 km, and then in a direction 30° east of north for 27 km.
1. 1 answer
2. asked by tom
3. 1,210 views
Hello. I will really appreciate your help.1)which preposition is correct or better in the sentence "oil is a curse of/for the
1. 1 answer
2. asked by Ilma
3. 1,210 views
A U.S. Firm wants to raise $10 million of capital so it can invest in new technology. How much will it need to raise in order to
1. 2 answers
2. asked by Julia
3. 1,158 views
when a chemical reaction takes place, the number of atoms of each element in the reactants (blank) the number of atoms of each
1. 2 answers
2. asked by darrell
3. 1,135 views
The voltage across the terminals of a 8.90 V battery is 8.00 V when the battery is connected to a 50.0 \Omega load.What is the
1. 1 answer
2. asked by Mitchell
3. 1,113 views
Differentiate.y= (cos x)^x u= cos x du= -sin x dx ln y = ln(cos x)^x ln y = x ln(cos x) (dy/dx)/(y)= ln(cos x) (dy/dx)= y ln(cos
1. 2 answers
2. asked by Chelsea
3. 1,088 views
A truck enters a highway driving 60mph. A car enter the highway at the same place 14 minutes later and drives 66mph in the dame
1. 1 answer
2. asked by MARIAH
3. 1,085 views
The probabilities of a student getting grade A, B, C and D are 0.2, 0.3, 0.15 and 0.35 respectively. Then the probability that
1. 2 answers
2. asked by Sharon
3. 1,072 views
On June 30, 2011, Georgia-Atlantic, Inc., leased a warehouse facility from IC Leasing Corporation. The lease agreement calls for
1. 1 answer
2. asked by Jessica
3. 1,069 views
I just need to know if the verb “prophesy” can be follow by to (ex. to Macbeth), if “army” is considered as a collective
1. 2 answers
2. asked by Mike
3. 1,067 views
What mass of melamine, C3N3(NH2)3, will be obtained from 159.5 kg of urea, CO(NH2)2, if the yield of the overall reaction is
1. 2 answers
2. asked by Lara
3. 1,058 views
a real estate office manages 50 apartments in downtown building . when the rent is 900$ per month, all the units are occupied.
1. 1 answer
2. asked by Anonymous
3. 1,042 views
what is the difference between a physical change and a chemical reaction
1. 1 answer
2. asked by hi
3. 1,031 views
When 100mL of 1.00 M Ba (NO3)2 and 100 mL of 1.00 M Na2SO4, both at 25 degrees celsius, are mixed in a constant pressure
1. 3 answers
2. asked by Johnny
3. 1,023 views
Two 95.0 W (120 \rm V) lightbulbs are wired in series, then the combination is connected to a 120 V supply How much power is
1. 2 answers
2. asked by Mitchell
3. 1,014 views
How to change 320% into a decimal and a fraction
1. 1 answer
2. asked by Matthew
3. 1,011 views
A cue ball initially moving at 4.3m/s strikes a stationary eight ball of the same size and mass. After the collision, the cue
1. 1 answer
2. asked by sarah
3. 1,004 views
A sailor strikes the side of her ship just below the waterline. She hears the echo of the sound reflected from the ocean floor
1. 1 answer
2. asked by Student in Need
3. 984 views
It has been proposed to use large inductors as energy storage devices.How much electrical energy is converted to light and
1. 1 answer
2. asked by Sarah
3. 980 views
A resultant force of 50N pulls a body of mass 10kg along a smooth horizontal surface. Calculate the acceleration with which the
1. 3 answers
2. asked by Alex
3. 980 views
1.The Soviet program of creating cotton fields in central Asia had disastrous consequences for:a. the Caspian Sea b. the Aral
1. 3 answers
2. asked by Cheryl
3. 978 views
What is the percent composition of O in C8H8O3
1. 1 answer
2. asked by .
3. 975 views
Express your answer as a chemical equation. Identify all of the phases in your answer.H3PO + Sr(OH)2=
1. 1 answer
2. asked by joseph
3. 973 views
whenever two Apollo astronauts were on the surface of the moon, a third astronaut orbited the moon, assume the orbit to be
1. 1 answer
2. asked by Anonymous
3. 956 views
Calculate the amount of energy released when Methane is burned.
1. 1 answer
2. asked by Travis
3. 946 views
if 3x years from today, Megan will be (3y + 4) times her present age, what is Megan's present age in terms of x and y?
1. 1 answer
2. asked by donald
3. 945 views
how many grams of manganese (4) oxide are needed to make 5.6 liters of a 2.1 solution
1. 1 answer
2. asked by robert
3. 944 views
I MUST DRAW TWO CARDS WHOSE SUM IS NINE, FROM A STACK OF CARDS NUMBERED ONE THRU TEN. AFTER THE FIRST DRAW, I REPLACED THE CARD
1. 2 answers
2. asked by Americal
3. 942 views
Suppose the dimensions of a rectangle with a perimeter of 22 inches are tripled. Find the perimeter of the new rectangle in
1. 2 answers
2. asked by avril
3. 938 views
A meter stick has a mass of 200g and its center of gravity is at the 50.0 cm mark. If 150g is attached to the stick at the 10 cm
1. 0 answers
2. asked by Lindsey
3. 929 views
Calculate the amount of energy released when Ethanol is burned.
1. 1 answer
2. asked by Travis
3. 929 views
The weights of adult males are normally distributed with a mean of 172 lb and a standard deviation of 29 lbQ.Find the weight
1. 1 answer
2. asked by Nathan
3. 926 views
what are the effects of geomagnetism to health? and how it can be prevented. The situation is "we off our main power because we
1. 1 answer
2. asked by starzy
3. 920 views
Two capacitors, identical except for the dielectric material between their plates, are connected in parallel.One has a material
1. 0 answers
2. asked by crystal
3. 882 views
Okay so for this questionQu'est-ce que tu viens de faire aujourd'hui? Je viens de parler au Francais. D'après toi, est-ce qu'il
1. 1 answer
2. asked by Sidney
3. 877 views
. Two groups of students are using a dynamic geometry software program to investigate the properties of quadrilaterals. The
1. 2 answers
2. asked by michele
3. 854 views
The Progressive Era (1890-1920)What does the outcome tell us about the way americans of the time felt about progressive reform
1. 0 answers
2. asked by David
3. 844 views
The length of a rectangle is 7cm greater than the width. Find the length and the width if the perimeter is 54cm
1. 1 answer
2. asked by Bob
3. 821 views
My question is about sasquatches. I just want to know if they are real. Is there someone who can answer this question??
1. 5 answers
2. asked by candice
3. 821 views
An eight turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of 30.0 cm. The coil lies in the
1. 1 answer
2. asked by Stefan
3. 821 views
Use the data in Table 15.3 to calculate the equilibriumconstant for the following reaction: HCOOH(aq) + OH(aq) <-->HCOO(aq) +
1. 2 answers
2. asked by vichka
3. 816 views
A student titrates 0.025 M KOH into 50.00 ml of a solution of unknown weak acid HA. Equivalence point is reached when 30.00 ml
1. 1 answer
2. asked by Patrick
3. 807 views
Identify coefficients and the degrees of each term polynomial, and then find the degree of each polynomial.a^3b^8c^2 - c^22 +
1. 1 answer
2. asked by Miguel
3. 800 views
How would you say Ash Wednesday and Easter in French? My French teacher said it today, but I just can't recall what it was
1. 2 answers
2. asked by Tania
3. 796 views
Assume that the earth is a uniform sphere and that its path around the sun is circular.(a) Calculate the kinetic energy that the
1. 1 answer
2. asked by Taylor
3. 794 views
(a) Find the speed of a satellite moving around the earth in a circular orbit that has a radius equal to six times the earth's
1. 3 answers
2. asked by Anonymous
3. 791 views
CUTTING A CIRCLE INTO EQUAL SECTION OF A SMALL CENTRAL ANGLE TO FIND THE AREA OF A CIRCLE BY USING THE FORMULA A=PIE R2
1. 3 answers
2. asked by ASWATHY
3. 789 views
What is the oxidation states for K2CrO4
1. 2 answers
2. asked by OLsoftball
3. 771 views
When the following equation is balanced the coefficient of CaO is ...CaO + P4O10 > Ca3(PO4)2
1. 1 answer
2. asked by .
3. 762 views
Compare Raphael’s School of Athens to Veronese’s Christ in the House of Levi. Explain how each artist reflected the
1. 0 answers
2. asked by Regina
3. 757 views
A 3.3 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 4.2 m/s2, find the force
1. 1 answer
2. asked by justin
3. 756 views
A loud speaker emits energy in all directions at a rate of 2.75 J/s . What is the intensity level at a distance of 25 m?
1. 2 answers
2. asked by Anisha
3. 750 views

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