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2011
March

Questions Asked on March 22, 2011

a train goes forward at a speed of 1m/s for 20 seconds. Then it stops abd goes backward at a speed od 0.5 m/s for 4 seconds.
1. 0 answers
2. asked by veronic
3. 614 views
Determine whether each binomial is the difference of two square. If so, factor it. If not, explain why.-m^6
1. 1 answer
2. asked by peg
3. 615 views
A student performs an experiment to determine the enthalpy of neutralization of hydrochloric acid and sodium hydroxide. The
1. 1 answer
2. asked by Rachel
3. 1,179 views
Give 2 specific examlples of an organic molecule.I think 2 of them are carbohydrates and proteins.
1. 1 answer
2. asked by sharice
3. 828 views
Kim and Susan are playing a tennis match where the winner must win 2 sets in order to win the match. For each set, the
1. 0 answers
2. asked by guy
3. 651 views
X-rays with an energy of 300 keV undergo Compton scattering from a target.If the scattered x-ray are directed at 30 degrees
1. 3 answers
2. asked by Jennifer
3. 697 views
The linear absorption coefficient for 0.05 nm x-rays in lead and in iron are respectively, 5.8x10(4) /m and 1.1x10 (4) /m. How
1. 1 answer
2. asked by Jennifer
3. 781 views
When 90 kJ is removed from a 2-kg copper bar its temperature drops from 200 degrees celcius to 85 degrees celcius what is the
1. 3 answers
2. asked by Brenda
3. 3,184 views
You have been hired by first citizens bank as a financial analyst. One of your first assignments is to analyze the present
1. 0 answers
2. asked by don
3. 506 views
Find the inflection point(s), if any, of the function.g(x)= 4x(^3)-4x
1. 1 answer
2. asked by Anonymous
3. 357 views
Determine where the function is concave upward and where it is concave downward.g(x)=-x(^2)+4x+8
1. 1 answer
2. asked by Anonymous
3. 521 views
The temperature of your skin is approximately 35C degrees. What is the wavelength at which the peak occurs in the radiation
1. 2 answers
2. asked by Abby
3. 2,429 views
A car moves 26km due east then 14km due north. It then turns along a path running north east with 15 km,then 17 km due west.If
1. 2 answers
2. asked by muhammed
3. 590 views
I Need Help On My Math Evaluates: Okay So I Have This Quiz Im Taking And Its Telling Me " Evaluate 3-1/3 to the power of 4" I Am
1. 2 answers
2. asked by Adrienne
3. 665 views
A coin is tossed 13 times. How many different outcomes have at least 2 heads ?
1. 0 answers
2. asked by rachel
3. 679 views
A hollow, thin-shelled ball of mass rolls along a horizontal surface with a translational speed of .
1. 0 answers
2. asked by kyle
3. 476 views
I have an electrical circuit which has 20V shown on left sideI=0.8A on top I = 0.3A on bottom I have to find the resistance
1. 4 answers
2. asked by Beth
3. 505 views
Draw a line 5cm long divide it in the ratio 7:3 measure the longer part
1. 1 answer
2. asked by Muhd muhd
3. 360 views
the current in a stream moves at a speed of 2 mph. A boat travels 8mi upstream and 8mi downstream in a total time of 7 hr. What
1. 1 answer
2. asked by Anonymous
3. 525 views
The surface areas of two similar figures are given. The volume of the largwe figure is given. Find the volume of the smaller
1. 1 answer
2. asked by Elizabeth
3. 1,171 views
what is the mass of a single oxygen autom
1. 2 answers
2. asked by brian
3. 413 views
the half life of tritium is 12.5 years. How much of a 1 g sample will remain after 25 years
1. 0 answers
2. asked by Brenda
3. 1,345 views
the largest a party balloon can get before bursting is 8.23L at 25 degrees celsius and 1.00 atm. supposing you fill the balloon
1. 1 answer
2. asked by Anonymous
3. 1,772 views
How many minutes does it take for light from the sun to reach the earth?
1. 1 answer
2. asked by brad
3. 564 views
One pump can empty a pool in 5 days, whereas a second pump can empty the pool in 7 days. How long will it take the 2 pumps,
1. 1 answer
2. asked by Jaison
3. 473 views
Describe and define the types of government that the different city-states chose for themselves. I mean about Crete- Or minoans
1. 2 answers
2. asked by Hayley
3. 1,041 views
determine the mass of CO2 produced when 76.8g of CaO is reacted with 50.0 g of C acording to the unbalanced equation...CaO + C
1. 1 answer
2. asked by Anonymous
3. 1,143 views
A grasshopper floating in water generates waves at a rate of three per second with a wavelength of two centimeters. (a) What is
1. 1 answer
2. asked by Brenda
3. 2,283 views
is experimenting a subject or predict nominative
1. 1 answer
2. asked by sara
3. 372 views
A sample of radioactive material weighing 45 grams has a decay rate of 4.25% each day. The equation y = 45(2.7)–0.0425t can be
1. 1 answer
2. asked by Sarah
3. 446 views
What volume would be occupied by 100 g of oxygen gas at a pressure of 1.50 atm and a temp of 25 degrees C.
1. 1 answer
2. asked by Danielle
3. 2,228 views
An airplane can travel 380 miles into the wind in the same time that it can travel 420 miles with the wind. If the wind speed is
1. 3 answers
2. asked by Mikel
3. 778 views
Which produces more sugar beets, Ukraine or Russia?
1. 1 answer
2. asked by Alyonka
3. 487 views
Michelle has 200lbs of potatoes and 50 cchickens. James has 80lbs of potatoes and 40 chickens. what is Michelles opportunity
1. 0 answers
2. asked by Brenda
3. 484 views
Two of these statements are false. Identify them.1.4x12>3x15 2.96/2<96/3 3.28+82>31+13
1. 2 answers
2. asked by Mona
3. 471 views
A photon of energy E strikes an electron at rest undergoes pair production, producing a positive electron(positron) and an
1. 0 answers
2. asked by Abby
3. 930 views
Find the future value of the ordinary annuity with payout of $20,000at 4.5% interest compounded annually for 12 years.
1. 0 answers
2. asked by wendy
3. 452 views
Answer the following questionswhat does pre viernes el pescado o el bonyo mean what does que co mis parlemis i duno mean? what
1. 1 answer
2. asked by nothing
3. 581 views
Erik Johnson has just become a heir to $15 000. He's 23 years old, and hes graduated frm university business program. He works
1. 1 answer
2. asked by Anonymous
3. 948 views
HiLooking for some guidance please, I need to find the initial-value problem for dy/dx = 1+2cos^2x / y. y = 1 when x = 0. any
1. 0 answers
2. asked by Claire
3. 395 views
Can you check these sentences for me, please? Thank you very much.1)He proposes he should pay for the racer himself. 2)She spent
1. 2 answers
2. asked by Mike
3. 851 views
When you push a 1.55 kg book resting on a tabletop it takes 2.10 N to start the book sliding. Once it is sliding, however, it
1. 2 answers
2. asked by amanda
3. 683 views
A backpack full of books weighing 43.0 N rests on a table in a physics laboratory classroom. A spring with a force constant of
1. 0 answers
2. asked by jen
3. 680 views
A 54.0 kg person takes a nap in a (lightweight) backyard hammock. Both ropes supporting the hammock are at an angle of 16.9°
1. 4 answers
2. asked by mike
3. 734 views
Prove that sin squared 20 degrees+sin squared 40 degrees+ sin squared 80 degrees is equal to 3/2
1. 1 answer
2. asked by cindy
3. 508 views
A cylindrical copper cable carries a current of 1070 A. There is a potential difference of 1.6 10-2 V between two points on the
1. 0 answers
2. asked by Sara
3. 522 views
does the stars in a galaxy slowly rotate around a center.
1. 0 answers
2. asked by shakiyla
3. 312 views
how do you solve:5x=2/3
1. 1 answer
2. asked by Marylu
3. 292 views
Pushing on the pump of a soap dispenser compresses a small spring. When the spring is compressed 0.55 cm, its potential energy
1. 0 answers
2. asked by Alan
3. 1,050 views
At an amusement park, a swimmer uses a water slide to enter the main pool.If the swimmer starts at rest, slides without
1. 1 answer
2. asked by Randy
3. 984 views
the tuition at a college increases exponentially. the current tuition (let it be t=0) is 36,000 and in 2 years it will be
1. 1 answer
2. asked by Joe
3. 532 views
I need help on this question plzThe mean of Five numbers is 28. Two of the numbers are the same. If three of the numbers are
1. 0 answers
2. asked by ST
3. 435 views
Catching a wave, a 77-kg surfer starts with a speed of 1.1 m/s, drops through a height of 1.60 m, and ends with a speed of 8.5
1. 1 answer
2. asked by John
3. 3,669 views
Use mathematical induction to establish the following formula.n Σ i² / [(2i-1)(2i+1)] = n(n+1) / 2(2n+1) i=1 Thanks for any
1. 6 answers
2. asked by Francesca
3. 750 views
Find f^-1(13), f(x)= 2x^5 + 3x^3 + 8xand find D(f^-1(x)) at x=13. Is this correct... I got 1/27 ??
1. 0 answers
2. asked by Sierra
3. 307 views
A 125-ft diagonal brace on a bridge connects a support of the center of the bridge to a side support on the bridge. The
1. 1 answer
2. asked by jackster
3. 533 views
Describe how to prepare an aqueous 100 mL stock solution of 2 M sodium chloride solution.
1. 1 answer
2. asked by Brittany
3. 486 views
20(1/5n - 3/4) + 9n
1. 1 answer
2. asked by J
3. 234 views
Which of the following would be the LEAST appropriate in the closing paragraph of a negative message?a. "Let us know if model
1. 3 answers
2. asked by MaS
3. 688 views
A 4.5 object moving in two dimensions initially has a velocity = (11.5 i+ 22.0j). A net force then acts on the object for 2.0 s,
1. 1 answer
2. asked by Matt Jones
3. 614 views
I need help understanding this FRQ prompt:Analyze the circumstances around the decision to ultimately relocate persons of
1. 1 answer
2. asked by Jenny
3. 493 views
Which one is correct?He changes by learning to read. He changes by learning how to read.
1. 5 answers
2. asked by Tasha
3. 337 views
How do I find the slope of the line tangent to the graph of each function at the given points?y=x^2+2x-8
1. 1 answer
2. asked by Tracie
3. 477 views
What provides the centripetal force :i)on the elctron orbiting the proton in a hydrogen atom ii)satellite orbiting the planet
1. 4 answers
2. asked by Nelly
3. 479 views
when an ice skater wants to slow down or stop, she drags the jagged front of her skate blade along the ice. What force is
1. 1 answer
2. asked by Isabella
3. 489 views
In an experiment we did in class ethanol was poured into a test tube and we noticed that the ethanol did not collect and form a
1. 1 answer
2. asked by cassandra
3. 790 views
Evaluate each value as a trigonometric function of an angle in Quadrant 1.#1 cos (27pi/8)
1. 1 answer
2. asked by Stephanie
3. 1,159 views
500.0 g of ammonia react with 51.0 moles of sulfuric acid to produce ammonium sulfate. How many moles of excess sulfuric acid
1. 1 answer
2. asked by Anonymous
3. 886 views
The perimeter of the rectangle is 19 inches. The perimeter of the inscribed triangle is also 19 inches.What is the width of the
1. 0 answers
2. asked by Alexis
3. 665 views
At the top of a pole vault, an athlete actually can do work pushing on the pole before releasing it. Suppose the pushing force
1. 1 answer
2. asked by blah
3. 3,952 views
Can someone help me factor this problem?Generally I wouldn't have a problem doing it, but today we're supposed to factor
1. 1 answer
2. asked by Anna
3. 686 views
what are part owners in a corporation
1. 1 answer
2. asked by Brieeshia
3. 309 views
or the period 1990-2003, the amount of biscuits, pastas, and noodles y (in thousands of metric tons)imported into the united
1. 1 answer
2. asked by Bri
3. 669 views
besides being a war for independence why else was the american revolution violent?
1. 5 answers
2. asked by Anonymous
3. 459 views
Can you please check these questions, please? Thank you very much in advance1) I had to do the cleaning twice a day. 2) It took
1. 1 answer
2. asked by Mike
3. 561 views
Can someone please help me with this problem.Given Matrix Y= 2 -7 4 and -1 1 0 Matrix Z= 3 4 1 4 2 -4 Solve for matrix X.
1. 3 answers
2. asked by Sue
3. 538 views
A cannon of mass 200kg, fires a cannonball with a mass of 10kg. The cannon ball leaves the barrel of the cannon with a velocity
1. 3 answers
2. asked by Nelly
3. 1,837 views
An ethylene glycol solution contains 20.9 g of ethylene glycol (C2H6O2) in 85.0 mL of water. Compute the freezing point and
1. 2 answers
2. asked by Lilly
3. 519 views
how long is a five k????? Is it 5 kilometers or 5 miles??
1. 1 answer
2. asked by Alyssa
3. 346 views
What is the answer if you have a nail NOT a FINGERNAIL butt A NAIL?What is the nearest cm and what is the neartest mm
1. 3 answers
2. asked by Bailey
3. 286 views
(a) Determine the amount of work (in joules) that must be done on a 95 kg payload to elevate it to a height of 1007 km above the
1. 0 answers
2. asked by Steve
3. 683 views
Three point charges, 5.6E-6, 2.2E-6, and -3.0E-6, lie along the x-axis at 0.00 m, 0.031 m, and 0.059 m.What is the force exerted
1. 0 answers
2. asked by alisha
3. 589 views
A 0.46 kg object connected to a light spring with a spring constant of 18.0 N/m oscillates on a frictionless horizontal surface.
1. 1 answer
2. asked by :)
3. 584 views
a cyclist bikes over a path at 10 miles per hour. he returns over the same path at * miles per hour. what was his average speed
1. 1 answer
2. asked by kai
3. 507 views
Can you please check my essay?Heres the prompt: En el capítulo 4 del libro, encontrarás un texto sobre los estereotipos
1. 1 answer
2. asked by Talia
3. 554 views
for an exotherimic reaction incresing the reaction temperature results in a (n)___k ?
1. 1 answer
2. asked by jay
3. 371 views
given reaction at equilibrium, if Kp=1.05 at 250 degree celcius, then kc =
1. 1 answer
2. asked by jay
3. 719 views
Find how many terms has an a.p whose common diffrence and first term are respectively negetive 6 and 8 and the last term is 82.
1. 3 answers
2. asked by Abdul
3. 1,258 views
How many grams of water are present in 0.500 moles of calcium sulfate hemihydrate?
1. 1 answer
2. asked by Talisa
3. 542 views
1/6 students like math, 2/3 like reading and 12 like science. How many students were asked.
1. 4 answers
2. asked by Kaitlyn
3. 439 views
A rotation id described by it's ____ and ____?
1. 0 answers
2. asked by Jaydirah
3. 391 views
the solubility of BaF2 is 6.29x10^-3M and the solubility of barium fluoride in 0.15M NaF is 4.4x10^-5M. Compare the solubility
1. 1 answer
2. asked by roshan
3. 953 views
Courtney, a sales manager, and her team of six have been assigned the task of developing a marketing strategy for a new software
1. 1 answer
2. asked by shantay
3. 756 views
the numbers below are Fibonacci numbers.1,1,2,3,5,8,13,21,34,55,... write a rule for the pattern. what are the next three
1. 4 answers
2. asked by julian
3. 479 views
A 3.00- flask is filled with gaseous ammonia, . The gas pressure measured at 28.0 is 1.25 . Assuming ideal gas behavior, how
1. 0 answers
2. asked by lily
3. 527 views
what is an outcast story
1. 1 answer
2. asked by donna
3. 368 views
find the sum estimate to cheack if the answer is reasonable
1. 1 answer
2. asked by casey
3. 388 views
What is western europe economy like? What has water done to effect the economy?
1. 4 answers
2. asked by Courtney
3. 491 views
How can I use Newton's 3rd law on a diver off of a diving board? Could I calculate friction against his feet?
1. 1 answer
2. asked by Joe
3. 516 views
a 275mL sample of vapor in equilibrium with 1-propylamine at 25C is removed and dissolved in 0.500L of H20. For 1-propalamine,
1. 2 answers
2. asked by leanna
3. 742 views

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