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2012
February

Questions Asked on February 24, 2012

You are walking on a moving walkway in the airport. The length of the walkway is 40.1 m. If your velocity relative to the
1. 1 answer
2. asked by MARÝA
3. 436 views
Is the distribution of geologic activityclumped, random, uniform, or some other pattern? Explain\ Is the distribution of
1. 1 answer
2. asked by steph
3. 405 views
This is the question i was asked, "The things that will destroy us are: politics without principle; pleasure without conscience;
1. 0 answers
2. asked by leanne
3. 521 views
use scientific notation to divide the two numbers, express answer using scientific notation, retain at least 3 decimal place for
1. 1 answer
2. asked by Dechols
3. 600 views
Suppose that an unfair coin comes up heads 54.1% of the time. The coin is flipped a total of 13 times.a) What is the probability
1. 1 answer
2. asked by Vikki
3. 1,287 views
A car starting from rest accelerates uniformly are attaing a speed of 80m/s in 30s it maintains this stedy speed for another
1. 2 answers
2. asked by adeyemi
3. 787 views
A farmer with 700 ft of fencing wants to enclose a rectangular area and then divide it into four pens with fencing parallel to
1. 4 answers
2. asked by Grant
3. 2,407 views
A 2.80 kg steel ball strikes a massive wall at 12.8 m/s at an angle of alpha = 50.9° with the plane of the wall. It bounces off
1. 0 answers
2. asked by Tom
3. 446 views
How many moles of sodium hydroxide are produced when 0.155 mole of sodium reacts with excess water?
1. 1 answer
2. asked by Cris
3. 836 views
The speed of light of a plastic is 1.4x10^8. What is the index of refraction in the plastic?
1. 2 answers
2. asked by crystal
3. 693 views
A 16.3 kg block is dragged over a rough, horizontal surface by a constant force of 157 N acting at an angle of 35 degree above
1. 1 answer
2. asked by Anonymous
3. 833 views
A 300.0g sample of ice at -30.OC is mixed with 300.0G of water at 90C. Calculate the final temperature of the mixture assuming
1. 2 answers
2. asked by Keru
3. 1,299 views
A rubber ball of mass 19.5 g is dropped from a height of 1.85 m onto a floor. The velocity of the ball is reversed by the
1. 0 answers
2. asked by Tyler
3. 1,112 views
A bowling ball weighing 43.0 N initially moves at a speed of 4.90 m/s. How long must a force of 51.0 N be applied to the ball to
1. 1 answer
2. asked by John
3. 429 views
. In the annual walkathon, Lee jogs for 5 3/4 miles more than he walks. If he travelled a total of 15 miles, how many miles did
1. 2 answers
2. asked by shelby
3. 420 views
A skater of mass 74.0 kg initially moves in a straight line at a speed of 4.60 m/s. The skater approaches a child of mass 45.0
1. 0 answers
2. asked by John
3. 688 views
This question is from my workbook (Pre-Calculus 11). Can someone please help me understand it?Suppose theta is an angle in
1. 2 answers
2. asked by David
3. 511 views
1) Find the exact value. Use a sum or difference identity.tan (-15 degrees) 2) Rewrite the following expression as a
1. 1 answer
2. asked by cheyanne
3. 1,728 views
A person of mass 84.5 kg is initially at rest on the edge of a large stationary platform of mass 150 kg, supported by
1. 0 answers
2. asked by John
3. 732 views
• What is the role of police in society? What would happen if the role of the police were lessened as it applies to the theory
1. 0 answers
2. asked by dan
3. 388 views
A block (mass m1 = 8kg) is moving on an inclined plane, coefficient of kinetic friction of 0.45, whose angle is 30degrees. This
1. 1 answer
2. asked by Anonymous
3. 1,378 views
What is energy
1. 1 answer
2. asked by Vivek
3. 367 views
How much water should be added to 20oz of a 15% solution of alcohol to dilute it to s 10% alcohol solution?
1. 1 answer
2. asked by rhonda
3. 1,007 views
The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the
1. 1 answer
2. asked by Mohamed
3. 737 views
The market for carrots is comprisedof two segments: fresh market carrots, which have excellent, uniform color and a small core,
1. 1 answer
2. asked by Ricky
3. 514 views
A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must bea) rate = k
1. 0 answers
2. asked by Mohamed
3. 467 views
The acceleration of a particle moving only on a horizontal plane is given by a= 3ti +4tj, where a is in meters per
1. 1 answer
2. asked by amy
3. 886 views
Xy+3=x?x^3
1. 0 answers
2. asked by Anonymous
3. 219 views
The acceleration of a particle moving only on a horizontal plane is given by a= 3ti +4tj, where a is in meters per
1. 0 answers
2. asked by amy
3. 862 views
What are the factors that affect the quantity of heat needed to raise the temperature of a substance?
1. 1 answer
2. asked by jaquie
3. 1,030 views
A 90 cm length of steel wire with a diameter of 0.5 mm is stretched between the inside walls of an oven the wire is just taut
1. 0 answers
2. asked by sand
3. 864 views
You are considering starting a walk-in clinic. Your financial projections for the first year of operations are as follows:Revenu
1. 1 answer
2. asked by anonymouscoward
3. 977 views
The temperature in a room is kept at a constant 20 °C but the humidity is only 20%. If the room has a volume of 30m³, and the
1. 0 answers
2. asked by sand
3. 532 views
A 70 liter tank containing an ideal gas at a pressure of 40 atmospheres is connected by a valve to a 30 liter tank of an ideal
1. 2 answers
2. asked by Stephanie
3. 558 views
A piston pump containing 2 liters of nitrogen gas at 3000 psia (absolute) pressure empties its entire contents into a 10 liter
1. 1 answer
2. asked by Stephanie
3. 592 views
two charged bodies exert a force of 86N on each other. If they are moved so that they are 6 times farther apart, what is the new
1. 1 answer
2. asked by Anonymous
3. 3,631 views
By studying in the USA, I believe that I am not only getting an internationally recognized education, but also a thrifty one. My
1. 2 answers
2. asked by Hero
3. 530 views
A pie chart of total number of students in a school has a sector 35degree representing 14students.how many students are there in
1. 2 answers
2. asked by Tony
3. 953 views
Application of psycology in developing country
1. 1 answer
2. asked by Bayush
3. 871 views
If the mass of an object was 0.500 kg and it started from rest, then the object's final velocity at the end of 0.86 seconds is ?
1. 1 answer
2. asked by sarah
3. 445 views
Calculate the number of moles in each of the following:0.150 g of salicylic acid 0.30 mL of acetic anhydride (density = 1.08
1. 1 answer
2. asked by Pat
3. 603 views
What is the total charge of all the electrons in a 13 kg bar of silver? (Silver has 47 electrons per atom and an atomic mass of
1. 1 answer
2. asked by Millie
3. 1,298 views
A point charge (m = 1.0 g) at the end of an insulating string of length L = 51 cm (Fig. 16-66) is observed to be in equilibrium
1. 0 answers
2. asked by Millie
3. 733 views
Any assistance explaining how to work this would be great!The force exerted by the wind on the sails of a sailboat is Fsail =
1. 1 answer
2. asked by Student
3. 461 views
What should be the goals of the US government today? I have to write an essay with this very question but I need help to
1. 1 answer
2. asked by Sam
3. 540 views
Explain how you would prepare a saturated aqueous solution of table sugar.Heat the solution to near its boiling point. With
1. 1 answer
2. asked by krystal
3. 693 views
Is nail sulcus and nail fold the same thing?
1. 2 answers
2. asked by Lil
3. 447 views
What is the [H3O] concentration in a 1.0M CH3COONa solution? (The Ka for CH3COONa is 2.0*10-5.)
1. 1 answer
2. asked by Brianna
3. 1,056 views
A quantity of gas has a volume of 121 L when confined under a pressure of 2.50 atm at a temperature of 20.0 C. At what pressure
1. 2 answers
2. asked by garrett
3. 883 views
what volume does 2.5 moles of carbon monoxide occupy at 50.5 kPa pressure and 20.0 C?
1. 1 answer
2. asked by garrett
3. 648 views
a quantity of gas is collected over water at 15C. The manometer indicated a pressure of 24.0kPa. what would be the pressure of
1. 2 answers
2. asked by garrett
3. 1,914 views
How many liters of pure oxygen at STP is consumed by a human being in 24hours if the human body requires daily energy that comes
1. 1 answer
2. asked by garrett
3. 1,676 views
what is the process for solving the following question?John is 72 inches tall and casts a 40 inch shadow. A monument casts a 24
1. 5 answers
2. asked by n
3. 1,293 views
What volume of 1.20 M nitric acid is needed to convert 5.5g of m-chlorophenol to 3-chloro-2,6-dinitrophenol?I So far I have
1. 3 answers
2. asked by Sam
3. 502 views
Given f(x)= 3x^2+x-30 and g(x)=x-3 find f(x)-g(x)
1. 1 answer
2. asked by melissa
3. 256 views
Given f(x)=sqrt x+4 and g(x)= 1/x find (fog)(x)
1. 1 answer
2. asked by Missy
3. 423 views
A bowling ball weighing 67.0 N initially moves at a speed of 4.80 m/s. How long must a force of 54.5 N be applied to the ball to
1. 1 answer
2. asked by Anonymous
3. 395 views
A rubber ball of mass 41.5 g is dropped from a height of 1.75 m onto a floor. The velocity of the ball is reversed by the
1. 0 answers
2. asked by Anonymous
3. 475 views
find f'(x) if f(x)= (cosx)^sinx
1. 1 answer
2. asked by Jesse Stone
3. 282 views
find f'(x) if f(x)=x^2*e^x*(3x-1)^3
1. 1 answer
2. asked by Johnathan
3. 289 views
how many feet in a dozen
1. 1 answer
2. asked by sami
3. 355 views
I could really use the help on this as soon as possible.what is the slope of the line tangent to the curve (/x)^2 at point
1. 2 answers
2. asked by Jesse Stone
3. 384 views
Find the acceleration of the block of mass M = 4.79 kg (m = 4.03) (KE = 0.1)
1. 1 answer
2. asked by John
3. 292 views
The quantity of antimony in an ore can be determined by an oxidation-reduction titration with an oxidizing agent. The ore is
1. 1 answer
2. asked by Katie
3. 716 views
Find the gravitational force exerted by a 0.515 kg mass on a 0.108 kg mass 1.94 m away.
1. 2 answers
2. asked by John
3. 365 views
Kelly plans to put her graduation money into an account and leave it there for 4 years while she goes to college. She receives
1. 2 answers
2. asked by Anonymous
3. 3,330 views
After completing your study reading, it is vital that you complete which of the following steps?
1. 1 answer
2. asked by Anonymous
3. 456 views
How would you write a linux program to read data from a joystick, and turn that data into a command that is pushed onto the
1. 1 answer
2. asked by Adhi
3. 376 views
A man walks one mile east, then he walks one mile northeast and then he walks one mile east. How far is he from his initial
1. 1 answer
2. asked by Bailee
3. 777 views
At the end of the spring term, a high school physics class celebrates by shooting a bundle of exam papers into the town landfill
1. 1 answer
2. asked by MARÝA
3. 461 views
Around 700 B.C.,Athernians became unhappy with their form of government. What new type of government replaced it?A.aristocracy
1. 3 answers
2. asked by ciara
3. 484 views
A horizontal wire of length 0.78 m, carrying a current of 6.8 A, is placed in a uniform external magnetic field. When the wire
1. 0 answers
2. asked by Anonymous
3. 509 views
My question involves "Graphic Representation of Radicals of the Second Order" I know that the length of the hypotneuse of a
1. 0 answers
2. asked by Josh S
3. 473 views
john earns $10 per hour and made a total $825. How many hours did he work during this period? Write an equation to represent
1. 1 answer
2. asked by Brianna
3. 390 views
The boiling point of helium at 1 atm is 4.2 K.What is the volume occupied by helium gas due to evaporation of 70 g of liquid
1. 3 answers
2. asked by Gabe
3. 1,541 views
Some questions fall outside of the realm of science;which of the following questions could not be ansewered usingf the
1. 0 answers
2. asked by Anonymous
3. 781 views
weight of watch glass+funnel= 121.573gweight of watch glass+funnel+CaC2O4H2O=122.044 g how many moles of CaC2O4H2O were isolated
1. 3 answers
2. asked by anna
3. 417 views
what is 9+9d=8d-12
1. 1 answer
2. asked by taylor
3. 191 views
lisa made a long-distance telephone call to her friend Jane. the cost was $.42 for the fist minute and $.19 for each additional
1. 3 answers
2. asked by NELLIE
3. 605 views
The building is 16 by 12 feet so, to the nearest tenth of a foot what distance (x) fom the building should time place the 16-ft
1. 1 answer
2. asked by Nicole
3. 405 views
antonio wants to buy a car that costs $2,500. he plans to put $400 down and pay the rest in six equal payments. find the amount
1. 3 answers
2. asked by PATRICE
3. 428 views
In a particular redox reaction, Cr is oxidized to CrO42– and Cu2 is reduced to Cu . Complete and balance the equation for this
1. 3 answers
2. asked by Anonymous
3. 2,172 views
Separate this redox reaction into its component half-reactions.Cl2 + 2Na --> 2NaCl
1. 4 answers
2. asked by Anonymous
3. 4,063 views
Separate this redox reaction into its component half-reactions.O2 + 2Zn -->2ZnO
1. 4 answers
2. asked by Anonymous
3. 4,383 views
(w^3-57w+43) / (w+8)
1. 2 answers
2. asked by amanda
3. 254 views
If paul pays the newspaper company 70% of what he collects how much would he keep for himself in a month when he collected
1. 5 answers
2. asked by Yazmin
3. 2,007 views
y=5x-26x+3y=15 Please help me solve this system of equation and show your work thanks
1. 2 answers
2. asked by Haylie
3. 566 views
The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. A 6.35-g
1. 2 answers
2. asked by Anonymous
3. 4,969 views
The 5th grade marching band includes boys & girls. There are 28 boys in a marching band. The boys are 7/10 of the students in
1. 3 answers
2. asked by nina
3. 1,050 views
Keith, Annie, Elizabeth, and Marcus are taking a picture. How many different ways can the friends stand in a horizontal line?
1. 3 answers
2. asked by unknown
3. 412 views
Nick is writing the 4 letters in his name in different orders. In how many orders can he put the letters?
1. 3 answers
2. asked by unknown
3. 397 views
find x such that (x,7) is 10 units from (-4,1)
1. 1 answer
2. asked by shain
3. 502 views
This is probably easier then my making it but...Calculate the ph of a forming acid solution that contains 1.35% forming acid by
1. 3 answers
2. asked by L.Bianchessi
3. 1,006 views
11.Which one of the following statements is not true about the president Ratcliffe portrayed in The General History? He wasn't
1. 4 answers
2. asked by helpp
3. 734 views
If the means for our groups on calories consumed a day were Group A = 2000, Group B = 2500, and Group C = 3000 could we just
1. 1 answer
2. asked by pat
3. 547 views
Evaluate the limit:lim ((7-x)^2)-9 / 4-x x->4
1. 1 answer
2. asked by Labiba
3. 326 views
A student scored 84 points on a test where the mean score was 79 and the standard deviation was 4. Find the student's z score,
1. 3 answers
2. asked by RGCLARK
3. 3,451 views
my code works in c++ so the logical I am getting error must be in the reading of the problem, but I can't see it:Given a type
1. 4 answers
2. asked by Cheryl
3. 1,110 views
In what ways was dulles's policy of brinkmanship different from truman's cold war policies?Thanks
1. 1 answer
2. asked by Sarah
3. 913 views
after passing therough a material t centimeters thick, the intensity I(t) of a light beam is given by I(t) =(4^-ct)Io, where Io
1. 1 answer
2. asked by Suzie
3. 679 views

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