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2011
June

Questions Asked on June 21, 2011

A 900 kg car pushes a 1900 kg truck that has a dead battery. When the driver steps on the accelerator, the drive wheels of the
1. 3 answers
2. asked by Kate
3. 11,069 views
John & Jane are married. The probability that John watches a certain television show is .4. The probability that Jane watches
1. 1 answer
2. asked by CC
3. 8,931 views
25cm3 of a solution of 0.1mol dm-3 NaoH reacts with 50cm3 of a solution of hydrochloric acid.What is the molarity of the acid
1. 7 answers
2. asked by jonah
3. 8,110 views
molecular and net ionic equations for FeCl3 + Na2S
1. 1 answer
2. asked by chelsea
3. 3,780 views
As a baseball is being caught, its speed goes from 30 to 0 m/s in about 0.005 its mass is 0.145.A) What is the baseballs
1. 3 answers
2. asked by Ralph
3. 3,490 views
Given: BD is a diameter m 1 = 100°m BC = 30°m 2 = ?degrees Given: BD is a diameter m 1 = 100°m BC = 30° m 3 = ? degrees
1. 1 answer
2. asked by terri
3. 3,243 views
There are three seating categories at a stadium. For a softball game, Class A# seats cost $15, Class B cost $12. and Class C
1. 2 answers
2. asked by John
3. 3,211 views
Express the number 25 as a sum of two nonnegative numbers whose product is as large as possible.
1. 2 answers
2. asked by Sandhya
3. 3,149 views
The three ropes in the figure are tied to a small, very light ring. Two of the ropes are anchored to walls at right angles, and
1. 2 answers
2. asked by Sam
3. 3,002 views
Calculate the number of moles of FeSO4 in 25cm3 of a 0.2mol dm3 solution
1. 5 answers
2. asked by Richard
3. 2,971 views
calculate the weight of carbon momoxide having same number of O2 atoms as are present in 22g of carbon dioxide
1. 9 answers
2. asked by joyti
3. 2,735 views
A body travels along a circular path of radius 70 m.After travelling half a revolution in 20 s find the ;1.average velocity
1. 2 answers
2. asked by Saurabh
3. 2,644 views
Below is the last stanza of a poem, "Dover Beach," written in 1876 by Matthew Arnold.Ah, love, let us be true To one another!
1. 9 answers
2. asked by Anonymous
3. 2,354 views
Calculate the relative molecular mass of a gas if a 500cm3 sample at 20¢ªC and 1 atomic mass of 0.66g
1. 2 answers
2. asked by jose
3. 2,347 views
consider a neutral atom with 30 protons and 34 neutrons. What is the mass number for the atom?
1. 2 answers
2. asked by mema
3. 2,322 views
If m angle 1 = 90°, what is m ADB?
1. 2 answers
2. asked by terri
3. 2,260 views
april sells specialty teddy bears at various summer festivals. her profit for a week,P, in dollars, can be modelled by P=
1. 1 answer
2. asked by geekgirl95
3. 2,235 views
3.A car with a mass of 1500 kg is parked on a hill with an incline of 20°.a.What is the weight of the car? b.What is the normal
1. 1 answer
2. asked by Hunter
3. 2,100 views
how many gram molecules are present in 4.9g of H2SO4
1. 2 answers
2. asked by joyti
3. 2,090 views
what is the following reaction?HNO3(aq) + KOH(aq) ---> KNO3(aq) + H2O(l)
1. 1 answer
2. asked by miranda
3. 2,059 views
1. A common symptom of a behavior disorder is2. When children have accidents with bowel or bladder control, the teacher aide
1. 12 answers
2. asked by teachers aide and early childhood education settin
3. 1,806 views
calculate the molality of one molarity solution of sodium nitrare. the density of solution is 1.25g cm cube.
1. 1 answer
2. asked by joyti
3. 1,623 views
What is the mass number of an atom of potassium that has 20 neutrons?
1. 3 answers
2. asked by mema
3. 1,553 views
1. There are three forces acting on an object, a 30N force pulling right, a 50N force pushing right, and 30N frictional force
1. 2 answers
2. asked by molly
3. 1,526 views
I have deleted your post because you included your email address in it. That is not a safe thing to do online. Please remember
1. 1 answer
2. asked by Writeacher
3. 1,490 views
umbrella, homework,slowly, follow... what word ofstressed syllable is different?
1. 2 answers
2. asked by zxania
3. 1,421 views
A car travels at an average speed of 36 kilometers per hour. Write and solve an equation to predict how many hours if will take
1. 2 answers
2. asked by jewel padilla
3. 1,398 views
Given the quadratic function f(x) = x2 – 12x + 36, find a value of x such that f(x) = 25.
1. 1 answer
2. asked by RANDA
3. 1,394 views
Determine the equation of joint variation. Then solve for the missing value.x varies directly with y and z. x = 400 when y = 8
1. 2 answers
2. asked by tyler
3. 1,344 views
Human vision can distinguish objects down to about a 4th of a millimeter (~250 micrometers). Given this, which of the following
1. 2 answers
2. asked by Kay
3. 1,322 views
3.Explain the major tenets of Hinduism and its evolution from the Aryans to the Gupta.Please help with this question I have no
1. 3 answers
2. asked by Nina
3. 1,294 views
A sample of serum has a mass of 54 gm and a volume of 225cm. What's the density in g/cm? I think the answer is .24g/c please
1. 4 answers
2. asked by Wendell
3. 1,287 views
The notation [x ] stands for the greatest integer that is less than or equal to x. Calculate [-1,2]
1. 1 answer
2. asked by Ladoo
3. 1,249 views
1. Imagine you are in the market for a new home and are interested in a new housing community under construction in a different
1. 1 answer
2. asked by Libby
3. 1,169 views
A diesel engine's piston compresses 16 cm3 of fuel-air mixture into 1 cm3. The pressure changes from 1 atmosphere to 48
1. 1 answer
2. asked by jasmine
3. 1,157 views
Sum of 2 numbers is 1 and their product is 1/8. Find their difference.
1. 1 answer
2. asked by Khalid
3. 1,124 views
what is the purpose of a diode in a cordless drill or power screwdriver?
1. 2 answers
2. asked by vicki
3. 1,107 views
Write an equivalent expression without using grouping symbols -(3x+5)
1. 1 answer
2. asked by Poochie
3. 1,102 views
The carbon tetrachloride molecule,CCi4 iswhat kind of molecule and bond?
1. 1 answer
2. asked by mema
3. 1,061 views
How many calories are absorbed by a copper spoon with a mass of 200 grams as it changes from 28°C to 33°C?A) 0.00027 B) 3 C)
1. 1 answer
2. asked by Destiny
3. 1,035 views
Intravenous infusions of sodium bicarbonate are often given to acidotic patients to correct acidosis and relieve the strain of
1. 0 answers
2. asked by skyler
3. 995 views
Given that iron has a density of 7.87 g/cm3, calculate the volumeof 100 g of iron and 50 g of iron
1. 0 answers
2. asked by John
3. 992 views
the equation of a line perpendicular to the line y = x - 3 and containing the point (8, -2).
1. 1 answer
2. asked by olivia
3. 990 views
Block B weighs 716 N. The coefficient of static friction between block and table is 0.31. Assume that the cord between B and the
1. 1 answer
2. asked by Chelsea
3. 990 views
1)(5, -3) is reflected over the y-axis. What are the coordinates of the image?A) (5, 3) B) (-5, 3) C) (-3, 5) D) (-5, -3) 2)If a
1. 1 answer
2. asked by Rae Rae
3. 974 views
complete and balance the following molecular equations and then write net ionic equations for each reaction.BaCl2(aq) +
1. 2 answers
2. asked by chelsea
3. 923 views
calculate the molality of one molarity solution of sodium nitrare. the density of solution is 1.25g cm cube.
1. 0 answers
2. asked by joyti
3. 914 views
Joe has a collection of nickels and dimes that is worth $6.20. If the number of dimes was doubled and the number of nickels was
1. 2 answers
2. asked by TAINA
3. 908 views
A standard solution of FeSCN2+ is prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN. The equilibrium
1. 0 answers
2. asked by Neil
3. 905 views
Why do the halogens easily form ionic and covalent bonds?Can someone explain this to me?! :(
1. 3 answers
2. asked by marie(:
3. 881 views
A hang glider and its pilot have a total mass equal to 120 kg. While executing a 360 degree turn, the glider moves in a circle
1. 0 answers
2. asked by Isaac
3. 877 views
If the angular velocity is increased by 17 times of the earth what will be the weight of an object at the equator?
1. 1 answer
2. asked by Raju prasad
3. 873 views
what is the similarity ratio for two circles with areas 2pi m2 and 200pi m2
1. 2 answers
2. asked by Anonymous
3. 835 views
a driver releases an air bubble of volume 2.0 cm^3 from a depth of 15 m below the surface of a lake where the temperature is
1. 1 answer
2. asked by j
3. 821 views
what is the element with the electron arrangement 2 8 7
1. 1 answer
2. asked by mema
3. 817 views
Hi, I solved this problem, but I want to make sure it is correct:2 equal charges are separated by 3.7x10^-10m. The force between
1. 1 answer
2. asked by Anonymous
3. 815 views
What is the mass difference between sodium ion vs. sodium atom?
1. 2 answers
2. asked by mema
3. 808 views
a piece of wood that measures 3.0 cm by 4.0 cm by 5.0 cm has a mass of 90.og. what is the density of the wood? would the piece
1. 0 answers
2. asked by dylan
3. 793 views
You are observing a slide of green cells under the 4X objective. Each cell covers roughly 1/8th of the width of your field of
1. 1 answer
2. asked by Kay
3. 776 views
Filling a tank. Two pipes are connected to the same tank. Working together they can fill the tank in 4 hrs. The larger pipe
1. 1 answer
2. asked by AJA
3. 773 views
A flower pot is dropped out of the twentieth story window. How far does the pot drop in 3 seconds? How fast will it be moving
1. 1 answer
2. asked by Nicki
3. 756 views
Find the total surface area of a square pyramid with a base length of 18 and height of 12
1. 2 answers
2. asked by Anonymous
3. 753 views
1. Tyler pulls a box full of baby ferrets across the floor by means of a rope that is tied to the box. The rope makes an angle
1. 1 answer
2. asked by Anonymous
3. 750 views
2. A golf ball is hit off the tee with an initial speed of 32 m/s at an angle of 29° with respect to the horizontal.a. What is
1. 3 answers
2. asked by Hunter
3. 737 views
5 ways in which human impacts on community
1. 1 answer
2. asked by Katlego
3. 734 views
Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state
1. 1 answer
2. asked by Taina
3. 727 views
What is deductive order strategy?
1. 2 answers
2. asked by M arla
3. 726 views
What mass of CO2 could be formed from the reaction of 16 g of CH4 with 32 g of O2 ?
1. 2 answers
2. asked by christi
3. 725 views
1.Approximate sqrt3 by applying Newton's Method to the equation(x^2-3) = 0 2.The equation (x^3-x-2) = 0 has one real solution
1. 0 answers
2. asked by Sandhya
3. 721 views
What is the mass of a football player who 1250 N?
1. 1 answer
2. asked by A
3. 703 views
There are 6 batteries. Two are defective. If you pull out two batteries, what is the probability that neither are defective?Is
1. 1 answer
2. asked by Todd
3. 693 views
A rectangular garden 10m * 18m . Find the area of a sidewalk that is 2m from the side of a garden ?
1. 2 answers
2. asked by lina
3. 679 views
If a 68kg object is being pulled across the hard floor with a horizontal force of 400N...a. What would the acceleration of the
1. 1 answer
2. asked by molly
3. 673 views
1. a force of 30n with a direction of 35 degrees northwest acts on point p. Find:a) the northward component on the force b) the
1. 4 answers
2. asked by Molly
3. 668 views
2. Tyler pulls a box full of baby ferrets across the floor by means of a rope that is tied to the box. The rope makes an angle
1. 1 answer
2. asked by Molly
3. 654 views
A 36 kg box hangs from a rope. What is the tension in the rope if the following are true?(a) The box moves up a steady 5.0 m/s?
1. 0 answers
2. asked by Ashley
3. 649 views
I corrected the two sentences as you told me. Can you please check them? Thank you.1) Coleridge's view of nature, unlike
1. 1 answer
2. asked by Henry
3. 640 views
My Assignment:Read the book, 'Animal Farm' by George Orwell. After reading the book, create a composition that examines the
1. 1 answer
2. asked by Jordan
3. 634 views
Find the possible values of a, if the distance between the points is 5, and the coordinates are (1,1) and (4,a)I'm not quite
1. 2 answers
2. asked by Lyn
3. 625 views
mechanism of natural selection( heritability, variation, differential reproductive success) how it works with behavioral
1. 3 answers
2. asked by ami
3. 622 views
Could you please check these last two sentences, please? Thank you for your help.1. Britain entered the First World War in 1914
1. 1 answer
2. asked by Henry1
3. 621 views
how many grams of lithium hydroxide are needed to remove 4500 grams carbon dioxide by a submarine atmospheric regulator and acts
1. 3 answers
2. asked by Kenzie
3. 617 views
James and Steve have a contest to see who can kick a football further. James kicks the football at an angle up of 57 degrees,
1. 1 answer
2. asked by Molly
3. 613 views
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state
1. 1 answer
2. asked by NATASHA
3. 612 views
Could you please help me check these sentences? Thank you very much in advance.1) The First World War, or the Great War as it
1. 1 answer
2. asked by Henry1
3. 600 views
Given that Sin(A+B)=2Cos(A-B) and tan A = 1/3 ,Find the exact value of tan B.
1. 1 answer
2. asked by CHRYSTABELLE
3. 596 views
You throw a ball horizontally off of a building with a horizontal velocity of 5 m/s. What's the ball horizontal velocity 8
1. 2 answers
2. asked by Jennifer
3. 591 views
PLS I NEED POINTS TO WRITE THIS DEBATE. Write against the motion ' The use of mobile phones by second cycle institution boarding
1. 4 answers
2. asked by Joseph
3. 588 views
Battle of Chattanooga, last fought by Grant and Sherman together. Why was its outcome significant ?
1. 3 answers
2. asked by Joanne
3. 586 views
Thank you really much. Here are some more sentences I'd like you to check.1)Victorian refers to a set of moral values which were
1. 1 answer
2. asked by Henry
3. 586 views
A projectile spends a total of 20 seconds in the air. It reaches a peak height of 8 meters. How long does it take to reach it's
1. 1 answer
2. asked by Rosie
3. 583 views
Why is iodine important to biological tissues such as the thyroid gland? Give a prediction for why iodine is added to the table
1. 2 answers
2. asked by Jake
3. 579 views
Can you just check if everything is correct? Thank you.1) Focus on the two recurrent themes in Joyce’s Dubliners and explain
1. 3 answers
2. asked by Henry
3. 576 views
If a 70g swimmer pushes off a pool wall with a force of250n, what is her acceleration?
1. 1 answer
2. asked by A
3. 576 views
Perform the indicated operation if possible simplify 3/4 / (-2/3)
1. 1 answer
2. asked by Shondra
3. 559 views
Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.
1. 1 answer
2. asked by NATASHA
3. 558 views
I forgot to include this sentence. Can you please check the tense choice since I switched from the past to the present? Thank
1. 1 answer
2. asked by Henry
3. 554 views
Multiply. show complete work2x + 4 by -5x2 – 3x – 2
1. 1 answer
2. asked by AJA
3. 554 views
How many hydrogen atoms will bond with each nitrogen atom?
1. 0 answers
2. asked by Sherri
3. 553 views
The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an
1. 0 answers
2. asked by John
3. 552 views

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