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Questions Asked on November 30, 2011

If the equation of motion of a particle is given by s = A cos(ωt + δ),the particle is said to undergo simple harmonic motion.
1. 1 answer
2. asked by Nykie
3. 10,034 views
for the function F(t)=ln(t^2), let f(t)=F'(t). Write the integral from a to b of f(t) dt and evaluate it with the fundamental
1. 3 answers
2. asked by bob
3. 8,009 views
A 2.0 g bullet leaves the barrel of a gun at a speed of 260 m/s.(a) Find its kinetic energy. J (b) Find the average force
1. 1 answer
2. asked by Anonymous
3. 4,673 views
Ethylene glycol has a specific heat of 0.578 cal/(g×°C). If 23.2 g of ethylene glycol absorbs 75.6 cal of heat energy, what
1. 1 answer
2. asked by Chemistry Chick
3. 3,959 views
Consider the titration of the weak acid HA with NaOH. At what fraction of Ve does pH = pKa - 1? At what fraction of Ve does pH =
1. 2 answers
2. asked by Remy
3. 3,272 views
out of 32 students in a class 5 said they ride their bikes to school based on these results predict how many of the 800 students
1. 14 answers
2. asked by shelby
3. 2,693 views
A box of volume 72m^3 with square bottom and no top constructed out of two different materials. The cost of the bottom is
1. 2 answers
2. asked by Samatha
3. 2,673 views
What does a boy who likes to play with switches do?
1. 6 answers
2. asked by Kelsey
3. 2,554 views
The distance the bicycle travels and the time taken are expressed by the formula d(t)=t^2-2t, there d(t) is in miles and t in
1. 1 answer
2. asked by ls
3. 2,502 views
to qualify for a certain car loan, a customer must have a credit score of at least 600. in addition, the cost of the car must be
1. 2 answers
2. asked by Gracyn
3. 2,339 views
slope=2/5,{10, 3} is on the linefind the y-intercept: y= mx + b ___ = {---} ____ +b
1. 1 answer
2. asked by daneille
3. 2,287 views
suppose a population has a doubling time of 15 years. By what factor will it grow in 30 years?
1. 1 answer
2. asked by issa
3. 2,207 views
THE AVERAGE WIND SPEED INCREASED 19 MILES/H FROM 8 AM TO 12 NOON. THE AVERAGE WIND SPEED DECREASED 5 MI MI/H FROM 12 NOON TO 4
1. 3 answers
2. asked by Justin
3. 2,065 views
THIS SEASON, NORA HAS 125 AT BATS IN SOFTBALL. BY THE END OF THE SEASON SHE WANTS TO HAVE AT LEAST 140 AT BATS. HOW MANY MORE AT
1. 3 answers
2. asked by Justin
3. 1,931 views
A ball on the end of a string travels in a horizontal circle at a constant speed. The circle has a circumference of 3 m, the
1. 1 answer
2. asked by Crystal
3. 1,869 views
Consider the reversible reaction: A(g)-2B(g)At equilibrium, the concentration of A is 0.381 M and that of B is 0.154 M. What is
1. 1 answer
2. asked by Chemistry Chick
3. 1,760 views
the sum of the first 8 term of an arithmetic progresion is 220,if the third term is 17.Find the sum of the first 6 items
1. 2 answers
2. asked by mike
3. 1,745 views
AlCl3(aq)+ NH4OH(aq)-> Al(OH)3(s) + NH4Cl(aq)AlCl3(aq)+ 3NH4OH(aq)-> Al(OH)3(s) + 3 NH4Cl(aq)... is balanced-- Now total ioic??
1. 2 answers
2. asked by Ashley
3. 1,734 views
hydrogen chloride gas reacts with oxygen gas to yield chlorine gas and water vapor in an equilibrium reaction. an experiment was
1. 1 answer
2. asked by Cody
3. 1,699 views
Find the degree 3 Taylor polynomial T3(x) of the function f(x)=(7x+50)4/3 at a=2Find the second-degree Taylor polynomial for
1. 1 answer
2. asked by Alison
3. 1,689 views
a coffee cup calorimeter normally consists of two nested styrofoam cups with a lid. a coffee cup calorimeter of this type
1. 4 answers
2. asked by Julia
3. 1,580 views
SUPPOSE IT TAKES NO MORE THAN 25 MIN FOR YOU TO GET TO SCHOOL. IF YOU HAVE TRAVELED FOR 13.5 MIN ALREADY, HOW MUCH LONGER, AT
1. 2 answers
2. asked by Justin
3. 1,555 views
A steel ball is hung from a vertical ideal spring where it oscillates in simple harmonic motion with a period T . At time t = 0
1. 2 answers
2. asked by Kinga
3. 1,516 views
the corrosion of iron is similar to the reactions that occur in an electrochemical cell. Oxidation and reduction occur at
1. 3 answers
2. asked by ryan
3. 1,505 views
At 20 degrees C ethanol has a density of 0.789 g/ml and H2O has a density of 1.0 g/ml. What is the % by volume of ethanol of a
1. 2 answers
2. asked by Shelly
3. 1,440 views
What is the electron-domain (charge-cloud) geometry of ClF5?
1. 1 answer
2. asked by Anonymous
3. 1,373 views
Writeacher please check my last post, you never replied.. it kind of left me wondering.. you said you would give me some ideas.
1. 1 answer
2. asked by Hm
3. 1,346 views
Calculate the pH at the halfway point and at the equivalence point for each of the following titrations.100.0 mL of 0.56 M HCl
1. 1 answer
2. asked by Sarah
3. 1,338 views
Raft is 4.2m wide and 6.4m long. when horse is loaded onto raft, the raft sinks 3 cm deeper into the water. Find the weight of
1. 1 answer
2. asked by oopu
3. 1,331 views
For the balanced reaction HCl(aq) + NaOH(aq) ? H2O(l) + NaCl(aq), how many moles of H2O could be produced from 25 g HCl? (You
1. 1 answer
2. asked by valarie
3. 1,284 views
How much more sugar could be added to 100 mL of water if it's temperature was raised from 50 degrees C to 70 degrees C?
1. 1 answer
2. asked by Jordyn
3. 1,268 views
"Yes I did" the turtle said.They went on arguing, and arguing the rabbit lost his mind; He got a stick, and start beating the
1. 1 answer
2. asked by Anonymous
3. 1,243 views
If an oil pipeline shuts down in Alaska, how does that affect the market for gasoline?demand increase, decrease or supply
1. 1 answer
2. asked by Econ help please another ques
3. 1,242 views
which sample contians the greatest number of atoms. a)10.0g He b)25.0g Ne c)115g Xe
1. 1 answer
2. asked by misty
3. 1,239 views
ZnCl2(aq)+Na2CO3(s)--> ZnCO3(s)+NaCl (aq) Balance the chemical equation and state solid, liq, gas, aq properly to each compoundO
1. 1 answer
2. asked by Ashley
3. 1,238 views
At t = 0 s a flywheel is rotating at 30 rpm. A motor gives it a constant acceleration of 0.9 rad/s^2 until it reaches 70 rpm.
1. 1 answer
2. asked by John
3. 1,234 views
Fighting the DepressionAgainst Drastic Measures "We are told by the opposition that we must have a change, that we must have a
1. 2 answers
2. asked by Sarah Beth
3. 1,200 views
Measures of Central Tendency,variability, and postion12th Grade math class. organize the data
1. 1 answer
2. asked by Lisa
3. 1,187 views
Running at 2.0 m/s a 45.0 kg person collides with a 90.0 kg person who is traveling at 7.0 m/s in the other direction. Upon
1. 1 answer
2. asked by Jane
3. 1,174 views
A raft is 4.5 wide and 6.3 long. When a horse is loaded onto the raft, it sinks 2.7 deeper into the water.What is the weight of
1. 1 answer
2. asked by Kami
3. 1,172 views
Write limits of integration for the integral \int_W f(x,y,z)\,dV, where W is the quarter cylinder shown, if the length of the
1. 1 answer
2. asked by Nick
3. 1,168 views
Jane is taking a class and asks you to help her figure out what her last grade must be in the class to get a 85 in the class.
1. 1 answer
2. asked by Jennifer
3. 1,154 views
what is the opposite of g is at least -5
1. 1 answer
2. asked by Anonymous
3. 1,151 views
Could someone answer this question so I understand it. The answer is 28.0, but i'd like to know how to do it. ThanksRandomly
1. 0 answers
2. asked by JAY
3. 1,120 views
Find the volume of the wedge-shaped region contained in the cylinderx^2 + y^2 = 1 and bounded above by the plane z = x and below
1. 1 answer
2. asked by Alyssa
3. 1,119 views
A merry-go-round accelerating uniformly from rest achieves its operating speed of 3.4 rpm in 2 revolutions. What is the
1. 2 answers
2. asked by WyzAnt
3. 1,116 views
List the sets of quantum numbers which describe all of the electrons possible in a 6p wave function (orbital):I'm really having
1. 4 answers
2. asked by Nicole
3. 1,108 views
if AB=2PB, then P is the midpoint of AB
1. 2 answers
2. asked by tre
3. 1,107 views
how can you obtain real-time ,current information in Windows NT /200/xp about the 1)number of memory pages per second 2) average
1. 1 answer
2. asked by vedrana
3. 1,102 views
The 7th term of an A.p is 20 and the 13th term is 38 find the ,1,70thterm ,2,11thterm
1. 1 answer
2. asked by Joshua
3. 1,102 views
What is the probability that a student in a college of 650 students in both a math major and a computer science major ( assuming
1. 3 answers
2. asked by Lisa
3. 1,098 views
an oil tanker has a mass of 100 000 tonnes. its kinetic energy is 200 MJ.Calculate its speed.(1Tonne=1000kg, 1 MJ= 1 Megajoule=
1. 3 answers
2. asked by jessy
3. 1,077 views
A car has a mass of 2500 kg rounds a circular turn with a radius of 50 m. If the road is flat and the coefficient of friction is
1. 2 answers
2. asked by Anonymous
3. 1,068 views
A block of mass 3.1 kg hangs vertically from a frictionless pulley of mass 5.9 kg and radius 14 cm. Treat the pulley as a disk.
1. 0 answers
2. asked by John
3. 1,056 views
Solve the differential equation below, given the initial condition f(0) = 3.Express your answer using words or symbols. y=-5x^2
1. 0 answers
2. asked by Courtney
3. 1,056 views
CONSIDER THE FOLLLOWING UNBALANCED REDOX EQUATION:IO3^-(AQ) + Al(S)-->I2(S) + A;^3+(AQ) A. WHAT IS THE OXDATION NUMBER OF IODINE
1. 1 answer
2. asked by PAM
3. 1,040 views
I urgently need your help to find the proper words. Thank you.1) Thank you very much for answering my email. I hope you don't
1. 1 answer
2. asked by Henry2
3. 1,032 views
Which country lawyer from Ashtabula, Ohio, argued that criminals are not born, but are made by the unjust condition of human
1. 1 answer
2. asked by Anonymous
3. 1,024 views
The speed of an electron is known to be between 3.0×10^6 m/s and 3.3×10^6 m/s . Estimate the uncertainty in its position.Chang
1. 1 answer
2. asked by Paige
3. 1,008 views
An athelete explains that his muscles have become well-developed through daily activities of weightlifting. He believes that his
1. 1 answer
2. asked by SYNC
3. 1,006 views
An object is on a frictionless inclined plane. The plane is inclined at an angle of 16.9 degrees with the horizontal. Using the
1. 3 answers
2. asked by Vlad
3. 996 views
A 2.9 × 103 kg car accelerates from rest atthe top of a driveway that is sloped at an angle of 16.0� with the horizontal. An
1. 1 answer
2. asked by Matt
3. 993 views
Triangle ABCis right angled at a .AD is perpendicular to BC.If AB=5cm,BC=13cm and AC=12cm,Find the area of triangle abc .Aiso
1. 3 answers
2. asked by anonymus
3. 990 views
I need to prove equality.a) (sina + cosa)^2 -1 / ctga - sinacosa = 2tg^2a b) (sin^2x/sinx-cosx) - (sinx+cosx/tg^2x+1) = sinx +
1. 4 answers
2. asked by Evelina
3. 990 views
I need the format of a business letter, and a friendly letter! P.S: also need the spacings if they are any. I mean like the
1. 3 answers
2. asked by Howler
3. 985 views
Which of the following statements about the Southern planter's world is most accurate?A. The stereotype of the "southern belle"
1. 1 answer
2. asked by jake
3. 978 views
The 7th term of an A.p is 20 and the 13th term is 38 find the ,1,70thterm ,2,11thterm
1. 1 answer
2. asked by Joshua
3. 973 views
how did each of the following encourage social reform: second great awakening, industrialization, nostalgia for the past?
1. 1 answer
2. asked by kristen
3. 968 views
I need some help with this question.I need to find the measurement of M<1 in the diagram. Sense I can't post the picture of the
1. 1 answer
2. asked by Allyson
3. 932 views
2. Advocates of a parliamentary system argue that Congress is inefficient, moves slowly and develops policies filled with
1. 3 answers
2. asked by Anonymous
3. 917 views
Suppose that fifteen observations are chosen at random from the pdf f_Y(y) = 3y^2, 0<=y<=1. Let X denote the number that lie in
1. 1 answer
2. asked by Jen
3. 903 views
A box contains 1 white bow, 2 yellow bows, 3 red bows, and 6 green bows. The bows are all the same size and shape. If Patricia
1. 6 answers
2. asked by Tony
3. 903 views
Approximately how far will the people have to travel to move the truck 1.5m if |Truck force is 4500N and people are 1200N?
1. 2 answers
2. asked by Dana
3. 889 views
Three men (Tom, peter, and jack)and three women (Eliza, Anne, and Karen) are spending a few months at a hillside. They are to
1. 0 answers
2. asked by Dell
3. 876 views
in this question paranthases are correct,just in this 10 has power 4.please i neede this early.its frm combination and
1. 0 answers
2. asked by Furzeen
3. 866 views
a ball of mass 0.4 kg is initially at rest on the ground. It is kicked and leaves the kicker's foot with a speed of 5 m/s in a
1. 0 answers
2. asked by emma
3. 863 views
A 10-g bullet is shot vertically into a stationary 8-kg block. The block lifts upward 3.0 mm. The bullet penetrates the block in
1. 1 answer
2. asked by Zach
3. 854 views
Four particles in the xy plane have the following masses and coordinates: 1 kg at (3 m, 3 m), 2 kg at (-2 m, 4 m), 3 kg at (3 m,
1. 0 answers
2. asked by John
3. 835 views
If f(x) is odd and the integral from -3 to 7 of f(x) dx is 11, then the integral from 3 to 7 of f(x) dx is __
1. 1 answer
2. asked by bobby
3. 828 views
In the movie Shawshank redemption, how did the prison in the film try to rehabilitate its inmates, was it successful? Provide 3
1. 1 answer
2. asked by Annie
3. 822 views
While visiting Planet Physics, you toss a rock straight up at 13.6 m/s and catch it 3.50 s later. While you visit the surface,
1. 1 answer
2. asked by Me
3. 821 views
Algebra question....Find the missing number. Tell which property can help you._______ x 9=0. The answer is 0, I'm having trouble
1. 2 answers
2. asked by Miya
3. 813 views
A tennis player places a 64 kg ball machine on a frictionless surface. The machine ﬁres a 0.051 kg tennis ball horizontally
1. 0 answers
2. asked by Timmy
3. 809 views
A 1,200kg car has its tyres inflated to a gauge pressure of 180kPa.How large an area for each tyre is in contact with the
1. 1 answer
2. asked by haggai
3. 809 views
if 25.2 g of aluminum (AW=27.0) are mixed with 125 g of sulfuric acid(MM=98.1)then how many grams of aluminum sulfate will be
1. 1 answer
2. asked by ally
3. 808 views
How Did the Industrial Revolution impact American Society economically, socially, politically, and morally?
1. 0 answers
2. asked by Kirsten
3. 807 views
how to write the rate as a unit rate?
1. 1 answer
2. asked by chelsey
3. 807 views
You are looking into the headlights of a distant vehicle on an autoroute in France. The driver has shown his resistance to the
1. 1 answer
2. asked by archi
3. 801 views
A thin spherical shell with mass of .4kg and diameter of .2m is filled with alcohol(density=806kg/m^3). It is then released from
1. 2 answers
2. asked by oopu
3. 800 views
I urgenlty need your help to express a few things. Thank you1)Before starting the e-mail partnership I'd like to know if we
1. 2 answers
2. asked by Henry2
3. 793 views
Find a z value to the right of the mean so that 74.5% of the distribution lies to the left of it.
1. 1 answer
2. asked by Z
3. 790 views
how affective were mediaeval doctors?
1. 2 answers
2. asked by Anonymous
3. 785 views
A 400-g block of copper at a temperature of 85°C is dropped into 300 g of water at 33°C. The water is contained in a 250-g
1. 1 answer
2. asked by Seth
3. 780 views
a hockey puck B resting on a smooth surface is struck by a second puck A which was orginally traveling at 50 m/s. After
1. 2 answers
2. asked by keshia
3. 772 views
(Graphing Calculator)Sketch the graph of the functionf(x)= 2x^3-7x^2-27x-18/x^2+5
1. 2 answers
2. asked by Furzeen
3. 762 views
Jane is taking a class and asks you to help her figure out what her last grade must be in the class to get a 85 in the class.
1. 1 answer
2. asked by Jennifer
3. 748 views
The volume of a cone is given by the formula V = (1/3)r2h. A cone has a volume of 11,907 cm3 and a radius of 21 cm.what would be
1. 1 answer
2. asked by cheyenne
3. 741 views
2 over 5 plus 1 over 8 equals blank plus blank equals
1. 4 answers
2. asked by jack
3. 738 views
Estimate the pressure exerted on the floor by a 75 kg store clerk standing momentarily on a single heel of their shoe, where the
1. 1 answer
2. asked by ted
3. 737 views
Thank you for the answer KCan you please explain? Observe the pattern of letters ACCCEEEEEGGGGGGG. This pattern continues to
1. 2 answers
2. asked by TO: Anonymous
3. 736 views

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