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Questions Asked on November 30, 2012

When solutions of KCl and Pb(NO3)2 are mixed, a precipitate forms. Which of the following is the balanced equation for the
1. 4 answers
2. asked by Z
3. 15,831 views
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the
1. 4 answers
2. asked by Ame
3. 8,954 views
Separate this redox reaction into its component half-reactions.O2+2Cu---->2CuO thought it was: Oxidation 2e-+O2---->2O(-2)
1. 2 answers
2. asked by Cari
3. 8,881 views
A spring is hung from a ceiling, and an object attached to its lower end stretches the spring by a distance d = 7.70 cm from its
1. 1 answer
2. asked by Ame
3. 7,685 views
Light waves are electromagnetic waves that travel at 3.00 108 m/s. The eye is most sensitive to light having a wavelength of
1. 1 answer
2. asked by Ame
3. 7,253 views
Which of the triangles described in the table is a right triangle?Triangles: Q, R, S, T Side 1: Q = 25, R = 26, S = 25, T = 25
1. 15 answers
2. asked by Kitralia Brown
3. 6,193 views
An urn contains 8 pink and 7 red balls. 6 balls are randomly drawn from the urn in succession, with replacement. That is, after
1. 6 answers
2. asked by Cindy
3. 5,274 views
A conical water tank with vertex down has a radius of 12 feet at the top and is 23 feet high. If water flows into the tank at a
1. 2 answers
2. asked by Mike
3. 5,252 views
A solid sphere is released from the top of a ramp that is at a heighth1 = 1.95 m. It goes down the ramp, the bottom of which is
1. 1 answer
2. asked by RagingRice
3. 5,110 views
72 is what percent of 480? Write and solve an equation to solve the problem
1. 45 answers
2. asked by alex
3. 4,919 views
Suppose that a polynomial function of degree 5 with rational coefficients has the given numbers as zeros. Find the other zero(
1. 4 answers
2. asked by Brittany Penman
3. 4,246 views
A block initially at rest is allowed to slidedown a frictionless ramp and attains a speed v at the bottom. To achieve a speed
1. 2 answers
2. asked by Anonymous
3. 3,206 views
Pyridine is a weak base that is used in the manufacture of pesticides and plastic resins. It is also a component of cigarette
1. 1 answer
2. asked by joane
3. 3,154 views
a crate contains apples, pears, and oranges.There are 184 apples and pears and 248 apples and oranges. there are 3 times as many
1. 5 answers
2. asked by Braden
3. 3,108 views
A tow truck is pulling a car out of a ditch by means of a steel cable that is 9.3 m long and has a radius of 0.50 cm. When the
1. 1 answer
2. asked by Elizabeth
3. 2,990 views
what is the equation for the perpendicular bisector of the line segment whose endpoints are (-7,2) (-1,-6)
1. 2 answers
2. asked by Will
3. 2,826 views
A spherical balloon is inflated with helium at the rate of 100pi ft ^3/min. How fast is the ballon's radius increasing at the
1. 1 answer
2. asked by Peggy
3. 2,658 views
A propane stove burned 470. grams of propane and produced 625 milliliters ofwater. What is the % yield?
1. 1 answer
2. asked by Josh
3. 2,492 views
The time per week a student uses a lab computer is normally distributed, with a mean of 6.2 hours and a standard deviation of
1. 3 answers
2. asked by jonathan
3. 2,350 views
The heat of fusion of ice is 6.00 kJ/mol.Find the number of photons of wavelength = 6.78×10^−6 m that must be absorbed to
1. 1 answer
2. asked by Jayden
3. 2,341 views
A fire hose 10 cm in diameter delivers water at the rate of 23 kg/s. The hose terminates in a nozzle 3.1 cm in diameter.(a) What
1. 1 answer
2. asked by Jeremy
3. 2,252 views
Hi everyone,I have been trying to figure out this titration equation all day and for some reason I am stumped. Here is the
1. 2 answers
2. asked by jo
3. 2,202 views
Astronomers have detected hydrogen atoms in interstellar space in the n=732 energy level. Suppose an atom in this excited state
1. 1 answer
2. asked by Carice
3. 2,182 views
A kickoff sends a football with an initial velocity of 25 m/s at an angle of 50 degrees above the horizontal.a) find the x and y
1. 1 answer
2. asked by Annie
3. 2,165 views
A box of weight w=2.0 N accelerates down a rough plane that is inclined at an angle 30 degrees above the horizontal. The normal
1. 4 answers
2. asked by Anonymous
3. 2,134 views
1. R varies jointly as S and t. If R=1/6,S=1/8 and T=3, find R when S=2 and T=11.formula: R=KST 2. U varies jointly as L and H
1. 2 answers
2. asked by jezzaD.
3. 2,108 views
A car with a mass of 980 kg is initially traveling east toward an intersection with a speed of vc = 18.9 m/s and a 1500 kg
1. 2 answers
2. asked by Diane
3. 1,735 views
As shown in the figure below, a 2.25-kg block is released from rest on a ramp of height h. When the block is released, it slides
1. 1 answer
2. asked by Diego
3. 1,718 views
Thinking about the different types of numbers you learned in this unit, how would you help someone remember the differences
1. 3 answers
2. asked by Sammy, !!!Please Answer!!
3. 1,717 views
what is the equation for the perpendicular bisector of the line segment whose endpoints are (-7,2) (-1,-6)
1. 2 answers
2. asked by Will
3. 1,684 views
a.)How many moles of NaOH are required to prepare 2.00L od 0.380M solution? answer is 0.760 mole of NaOH (mole/l * 2.00L)b.)What
1. 1 answer
2. asked by Angel Locsin
3. 1,669 views
Water is flowing at the rate of 50m^3/min from a concrete conical reservoir of base radius 45m and height 6m. How fast is is the
1. 1 answer
2. asked by Peggy
3. 1,656 views
The ripples in a certain groove 12.7 cm from the center of a 33-rpm phonograph record have a wavelength of 1.75 mm. What will be
1. 1 answer
2. asked by Jasmine
3. 1,560 views
1. A sickness resulting from eating food that is not safe to eatempty-calorie foods nutrition foodborne illness nutrient density
1. 10 answers
2. asked by retired and broke
3. 1,528 views
Find the area of the region under the graph of the function f on the interval [4, 10].f(x)=10x-5 ? square units
1. 2 answers
2. asked by Ashton
3. 1,515 views
I'm trying to do this precipitation reaction problem, but I don't understand part of it.The question is: Does a precipitate form
1. 1 answer
2. asked by Emily
3. 1,508 views
A car moves a distance of 200 km. It covers the first half of the distance at speed 40 km/h and second half of the distance by
1. 2 answers
2. asked by maihul
3. 1,475 views
Magnus purchased a car for $35,865. It depreciates about 3.6% each year. What is the value of the car after ten years?
1. 1 answer
2. asked by kelsey
3. 1,474 views
Jessica bought a computer for $325 and had to pay 6% sales tax. What was the total cost of Jessica’s computer?
1. 3 answers
2. asked by alex
3. 1,440 views
Find the vertices, foci, and eccentricity of the ellipse. Thank you.x^2/16 + y^2/25 = 1
1. 1 answer
2. asked by amaa
3. 1,439 views
A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.3 cm/min. At what rate is the volume
1. 2 answers
2. asked by Alex
3. 1,433 views
what is the equation for the perpendicular bisector of the line segment whose endpoints are (-7,2) (-1,-6)
1. 2 answers
2. asked by Will
3. 1,432 views
the perimeter rectangular pool is 160 meterss . The length of the pool is 20 meters . what is the length ?
1. 2 answers
2. asked by Anonymous
3. 1,392 views
Ken's target heart rate is 122-139bpm. His resting heart rate is 73 bpm. What is his age?
1. 1 answer
2. asked by Leslie
3. 1,376 views
Area of the four walls of a room is 108 m2. If the height and length of the room are in the ratio of 2 : 5 and the height and
1. 3 answers
2. asked by maihul
3. 1,374 views
Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is
1. 0 answers
2. asked by Diane
3. 1,332 views
When excess solid Mg(OH)2 is shaken with 1.00 L of 1.2 M NH4Cl solution, the resulting saturated solution has pH = 9.30.
1. 1 answer
2. asked by Anzeeel
3. 1,331 views
two adjacent sides of a parallelogram measure 15 cm and 20 cm while the diagonal opposite their common vertex measure 25 cm.find
1. 1 answer
2. asked by aditya chaturvedi
3. 1,330 views
For a given right triangle, side a = 76.4 feet and side b = 39.3 feet. What is the measure of angle A to the nearest degree?
1. 0 answers
2. asked by Kelsey
3. 1,323 views
If a pure monopolist can price discriminate by separating buyers into two or more groups:A.the marginal revenue curve and the
1. 0 answers
2. asked by Brandon
3. 1,264 views
bullet traveling 8.o*10^2 (800) meters per second horizontally hits a target 180 m away. how far does the bullet fall before it
1. 1 answer
2. asked by Taylorr
3. 1,250 views
Harriet needs to ship a small vase. The box she will use has a volume of 216 cubic inches. If the side lengths are all the same,
1. 5 answers
2. asked by Sammy, !!!Please Answer!!
3. 1,242 views
Toby is making a scale model of the battlefield at Fredericksburg. The area he wants to model measures about 11 mi by 7.5mi. He
1. 1 answer
2. asked by greg
3. 1,230 views
Solve the proportion using cross products.20 Miles 15 Miles ________ = __________ 50 Miles h Hours Please Answer!!!!
1. 2 answers
2. asked by !!PLEASE ANSWER!!!
3. 1,195 views
Phillip, the proprietor of a vineyard, estimates that the first 9600 bottles of wine produced this season will fetch a profit of
1. 2 answers
2. asked by shannon
3. 1,188 views
find functions f anf g so that fog equals HH(x)=�ãx^2+17 please show work
1. 1 answer
2. asked by confused
3. 1,186 views
Find the accumulated value of a CD of $20000 for 3 years at an interest of 3.1% if the money is compounded continously.
1. 1 answer
2. asked by Brad
3. 1,169 views
How does Sandburg portray Lincoln as a politician? (in the story 'a Lincoln preface')A. practical B. misleading C. dishonest D.
1. 2 answers
2. asked by Lexis
3. 1,166 views
A student measures the conductivity of a KNO3 solution and determines it to be a strong electrolyte. the student incorrectly
1. 3 answers
2. asked by Min
3. 1,163 views
1. During storm roof of house is blown off 2.It is dangerous to stand near the railway track when a train is moving with high
1. 0 answers
2. asked by Phalguni
3. 1,160 views
I need help with 2 questions please.1.What are the three parts of the law of conservation of mass/matter? Do not need the
1. 0 answers
2. asked by Please Please Help
3. 1,155 views
A 25 g bullet is fired from a gun into a 1.35 kg block of wood initially at rest. (The bullet sticks in the wood). The wood is
1. 1 answer
2. asked by ashley
3. 1,142 views
Walt Whitman's writing style can best be described as
1. 2 answers
2. asked by Anonymous
3. 1,135 views
After seeing how she interacts with the little Maltese dog next door, Ellie's parents decide to get her a dog too. Ellie'snew
1. 1 answer
2. asked by Regina
3. 1,130 views
Juan bought a pair of sandals for $110.00. He needs to paythe 8% sales tax. How much will Juan pay in sales tax?
1. 1 answer
2. asked by !!PLEASE ANSWER!!!
3. 1,127 views
On January 1, 20X1, Parent Company acquired 80% of the common stock of Subsidiary Company for $560,000 On this. date Subsidiary
1. 0 answers
2. asked by carol
3. 1,115 views
A figure has 2 sets of parallel sides and 4 right angles. All of the sides are the same length. What are the 3 names for the
1. 1 answer
2. asked by mythreyee
3. 1,108 views
What is the acid dissociation constant for a 0.010 M solution of the unkown acid HX that has a pH of 2.70 at equilibrium?I know
1. 2 answers
2. asked by ciaociao
3. 1,105 views
a 254-kg crate is pushed horizontally with a force of 740 N. if the coefficient of friction is .20, calculate the acceleration
1. 0 answers
2. asked by Annie
3. 1,094 views
The demand function for a certain brand of blank digital camcorder tapes is given byp=−0.02x^2−0.1x+24 where p is the
1. 0 answers
2. asked by Ali
3. 1,086 views
Part A:A cardinal (Richmondena cardinalis) of mass 4.50×10^−2 kg and a baseball of mass 0.142 kg have the same kinetic
1. 1 answer
2. asked by Anonymous
3. 1,085 views
What is the sale price for a pair of shoes that was originally $74.00 and now is 25% off?
1. 1 answer
2. asked by !!PLEASE ANSWER!!! now plzzz
3. 1,083 views
Your pay stub deducts money for FICA. What does this mean?A. Money is being withheld for personal exemptions and deductions. B.
1. 1 answer
2. asked by bob
3. 1,082 views
A kite is being flown at a height of 300 ft, and the wind carries the kite horizontally away at a rate of 25ft/sec. How fast
1. 1 answer
2. asked by Peggy
3. 1,080 views
What is oxygen extensive properties?
1. 0 answers
2. asked by D
3. 1,075 views
mr.hemley stands next to the Illionis centennial monument at logan square chicago and casts a shadow that is 18 ft long. The
1. 2 answers
2. asked by lanessa
3. 1,058 views
An athlete whirls a 7.54 kg hammer tied to the end of a 1.5 m chain in a horizontal circle.The hammer moves at the rate of 1.51
1. 0 answers
2. asked by Anonymous
3. 1,057 views
What is the difference between converging and diverging waves? What happens to a converging wave after it has converged?
1. 0 answers
2. asked by Raju Singh
3. 1,057 views
PA11-4 Comparing Stock and Cash Dividends [LO2, LO3, LO4]Ritz Company had the following stock outstanding and Retained earnings
1. 1 answer
2. asked by Anonymous
3. 1,057 views
for the line segment DE one edpoint is D(3,1) and the midpoint is M (0,-4). find the coordinates of endpoint E.
1. 1 answer
2. asked by claire
3. 1,054 views
Lyle got paid to today. He used 1/2 of his check topay bills. He spent 30% of what was left on new clothes, and going out to
1. 2 answers
2. asked by nicole
3. 1,052 views
In an interference of light experiment, coherent light that contains two wavelengths: 640 nm (red-orange) and 425 nm
1. 1 answer
2. asked by Alphonse
3. 1,041 views
Rank, from smallest to largest, the pressures in the tank of motionless fluid shown in the figure.
1. 0 answers
2. asked by Anonymous
3. 1,037 views
Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is
1. 0 answers
2. asked by Diego
3. 1,032 views
Assignment: Should heroes be defined as people who say what they think when we ourselves lack the courage to say it? Plan and
1. 3 answers
2. asked by Anon
3. 1,024 views
Ryan moved into a new house with a 1750 gallon pool and needs to fill it. He can't figure out how to close his pool drain. It
1. 1 answer
2. asked by Steph
3. 1,013 views
Write the decimal 0.079 as a percent.Please Answer Correct Please :(
1. 10 answers
2. asked by !!PLEASE ANSWER!!!
3. 1,012 views
the circumference of a circle is 4 inches. Find the radius and area..
1. 1 answer
2. asked by eddie
3. 1,007 views
An 85.7 N box of clothes is pulled 26.2 m upa 31.7 ◦ ramp by a force of 112 N that points along the ramp. The acceleration of
1. 1 answer
2. asked by Anonymous
3. 1,000 views
Of the 85 seventh graders, 27 are going on the class field trip. What percent of the seventh graders are going on thefield trip?
1. 3 answers
2. asked by !!PLEASE ANSWER!!!
3. 998 views
Find the vertices, foci, and eccentricity of the ellipse.64x^2 + 81y^2 = 5184
1. 1 answer
2. asked by amaa
3. 984 views
How many grams of C are required to make 464.99 grams of this compound?compound= C3H8
1. 1 answer
2. asked by HELP
3. 982 views
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis.y=3x^2, x=1,
1. 1 answer
2. asked by Ali
3. 980 views
what is the subject and verb phrase of "Go to the snack bar before the movie"
1. 3 answers
2. asked by daniel
3. 979 views
The fictitious compound, arrhenium fluoride (AhF), reacts with itself to form a dimer with the formula Ah2F2. The reaction is
1. 1 answer
2. asked by maliya
3. 973 views
Check?25. f(x)= x^2-1 ; -3, -2, -1, 0, 1, 2 ,3 = f(x); -3^2-1=-10 f(x) ; -2^2-1=-5 f(x) ; -1^2-1=-2 f(x) ; 0^2-1=-1 f(x) ;
1. 1 answer
2. asked by Unknown
3. 972 views
Estimate a 15% tip on a taxi ride that costs $23.25.
1. 5 answers
2. asked by alex
3. 967 views
Answer the following question in your discussion group: Sometimes people say “Give 110% of your effort.” Is it possible to
1. 4 answers
2. asked by Destiny
3. 945 views
A horizontal 790-N merry-go-round of radius 1.30 m is started from rest by a constant horizontal force of 50 N applied
1. 0 answers
2. asked by monic
3. 938 views
An athlete whirls a 7.54 kg hammer tied to the end of a 1.5 m chain in a horizontal circle.The hammer moves at the rate of 1.51
1. 0 answers
2. asked by Anonymous
3. 931 views

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