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Questions Asked on February 23, 2007

A soccer player kicks a soccer ball of mass 0.45 kg that is initially at rest. The force of the kick is given by F(t) =
1. 1 answer
2. asked by Physics/Math
3. 2,092 views
Compute the rms speed of a nitrogen molecule at 31.0°C. At what temperature will the rms speed be half that value?At what
1. 1 answer
2. asked by Physics/Math
3. 1,476 views
ABC is a right triangle. Angle C is 90 degree.Altitude CD is drawn to hypotenuse AB. Prove AB/BC = BC/BD and AB/AC = AC/AD This
1. 1 answer
2. asked by Jen
3. 1,359 views
Are the following lines parallel, perpindicular, or neither?(a)x-2y=4 (b)2x+y=2 (a)-2y=-x-4 -y=-x/2-2 (b)y=-2x+2 I have that
1. 0 answers
2. asked by Peggy
3. 1,217 views
If the measures of the angles in a triangle are in the ration 3:4:5, the measure of the exterior angle of the triangle can not
1. 0 answers
2. asked by James
3. 1,112 views
HOW DO i WRITE A SENTENCE IN SPANISH ABOUT MY FAMILYDo this: Start with a sentence about your family in English. Then translate
1. 0 answers
2. asked by jAVOR
3. 1,090 views
Okay I need to know something about cell phones and land lines.My parents can't answer this because we don't have a land line
1. 0 answers
2. asked by Kayla
3. 1,087 views
The Supreme Court threw out a $79.5 million punitive-damages award against cigarette maker Philip Morris. The high court voted
1. 0 answers
2. asked by Mike
3. 1,065 views
Hi, could someone please tell me how I would go about working these out: (the answer must be in the form a(sqroot)b where a and
1. 0 answers
2. asked by em
3. 1,040 views
Solve for X: 4x - 2 +7 = 17collect like terms on left hand side 4x + 5 = 17 subtract 5 from each side 4x = 12 divide by 4 on
1. 0 answers
2. asked by Peggy
3. 1,016 views
Find the slope and y-intercept.x=7 I know that the slope is undefined. The y-intercept would be none, right? Since no y is
1. 0 answers
2. asked by Peggy
3. 1,010 views
how many pints of blood is in an average adults body?9 to 12 I believe 56 Facts About Blood and Blood Donation One for each day
1. 0 answers
2. asked by marie
3. 972 views
directions are:write each fraction in simplest form: (-15x^3y^3)/(-20x^1y^4) My answeris: (3x^2)/(4y) THESE TWO NEXT ONES ARE
1. 1 answer
2. asked by jas20
3. 920 views
What is the average translational kinetic energy of nitrogen molecules at 1500 K, in the following units?(a) J (b) eV I already
1. 0 answers
2. asked by Physics/Math
3. 867 views
2 samples were collected to determine whether there was a difference between two weight loss methods targeting men. The average
1. 0 answers
2. asked by Jason L
3. 777 views
What were the essential principles of the Theodore Roosevelt's foreign policy, and how did he apply them to specific situations?
1. 0 answers
2. asked by Annie
3. 763 views
1) Which of the following ingegers can not represent the lengths of the sides of a triangle?(9,10,11) (4.7,9) (4,8,12) &
1. 0 answers
2. asked by Peggy
3. 760 views
Discuss the effets of World War II; historians and other scholars have commonly spoken of "postwar American society." How was
1. 1 answer
2. asked by Emma
3. 756 views
The concentric circles, or growth rings, represent the cross-section of a tree with a diameter of 16 centimeters. The width of
1. 0 answers
2. asked by Andrew
3. 747 views
A 0.30-kg softball has a velocity of 12 m/s at an angle of 30° below the horizontal just before making contact with the bat.
1. 0 answers
2. asked by Physics/Math
3. 734 views
In a study that was highly published doctors discovered that aspirin helps prevent heart attacks. The research project which was
1. 0 answers
2. asked by Jason L
3. 726 views
What weakness existed beneth the surface of the general 1920's prosperity, and how did these weakness help cause the Great
1. 0 answers
2. asked by Daniel
3. 710 views
The measures of two supplementary angles are in the ratio 5:1. What is the measure of the smaller triangle?A/B = 5 A + B = 180
1. 0 answers
2. asked by Peggy
3. 707 views
solve the system using substitution{x+2y=11 {3x+2y=13 i just told you how to do the other one; it's the same exact method. solve
1. 0 answers
2. asked by andrea
3. 703 views
each element has a different has a different set of energy level use this fact to explain why colour of light emited by an
1. 1 answer
2. asked by bonita
3. 697 views
The concentric circles, or growth rings, represent the cross-section of a tree with a diameter of 16 centimeters. The width of
1. 0 answers
2. asked by Andrew
3. 694 views
write a formula equation for the following equation:Ammonia reactsa with hydrogen chloride to form ammonium chloride.NH4 + HCl =
1. 0 answers
2. asked by Tiara
3. 678 views
what are the basics for doing a powerpoint presentationAll Microsoft Office programs have very good "Help" sites, and if you
1. 0 answers
2. asked by Anonymous
3. 672 views
I am putting < for the square root abbreviation. I don't know how to use it on my comp.3<99-2<44-6<11=? For Further Reading On a
1. 1 answer
2. asked by Andrea
3. 667 views
3logx = 6-2xThanks This is a problem that is best solved by iteration, or graphing. I recommend graphing. There is no
1. 0 answers
2. asked by Jen
3. 666 views
Can anyone please answer my science question???? PLEASE!!if nobody on here is answering, try doing a little research on other
1. 0 answers
2. asked by jk1115
3. 661 views
Having trouble getting the correct solution.The integral of “x squared” in the numerator and “x squared plus x minus 6”
1. 0 answers
2. asked by Ang
3. 659 views
Look at my previous post....Can anyone please answer my science question??? well what's the question?
1. 0 answers
2. asked by jk1115
3. 650 views
The following statement describes, in random order, events during the transmission of a nerve impulse. Use them to answer the
1. 0 answers
2. asked by bob!
3. 640 views
I really need help and no offense but I would prefer Dr.Bob or Writeacher or somebody that knows what they're doing. Where are
1. 0 answers
2. asked by Me
3. 639 views
Why was it so difficult for Wilson to maintain American's neutrality from 1914-1916?for ww1 he tried to solve things but the
1. 0 answers
2. asked by Lisa
3. 633 views
Can abs(28-7w)=7abs(w)be written as abs(w-4)=abs(w) and if so why surely it should be abs(4-w)=abs(w) can any one explain why I
1. 0 answers
2. asked by Jake
3. 625 views
Why is the molecular formula of a gas not necessarily the same as its empirical formula?At higher temperatures, those that
1. 0 answers
2. asked by sarah
3. 618 views
PLEASE HELP ME SOLVE THIS PROBLEM:4((3x-6)/(6x+2))^3 * ((42)/(6x+2))^2 okay, here your going to use PEMDAS. Parenthesis,
1. 0 answers
2. asked by Confused
3. 616 views
A local bank reports that 70% of its customers maintain a chequing acct, 50% have a savings acct and 40% have both.If a customer
1. 0 answers
2. asked by Linda
3. 598 views
what coordinate point is the solution to the system?{3x+2y=8 {x-y=1 (2,1) please don't think i just made that up, it's correct.
1. 0 answers
2. asked by andrea
3. 597 views
sqrt (10/2)= sqrt 5Quotient Property: 2*sqrt10/2 I need to learn how to simplify the expression give me a problem and i can
1. 1 answer
2. asked by bobpursley
3. 590 views
A 17.0 kg child travels down a playground slide 3.50 m high and reaches the bottom with a speed of 2.50 m/s. How much heat was
1. 0 answers
2. asked by Cathy
3. 581 views
4-x^2 = e^-2xplease. This is a transidental equation. Numeric methods, such as iteration, or expanding functions to series and
1. 0 answers
2. asked by Jen
3. 576 views
the director of an insurance companies computing center estimates that the companies computer has a 20% chance of catching a
1. 1 answer
2. asked by Jason L
3. 574 views
What caused the progressive movement, and how did it get under way?(Broken Link Removed)
1. 0 answers
2. asked by Katie
3. 573 views
Wow!! This is an awesome website!! Thank you soooo much!!! I owe you one!!Hey! I need help on a question in science... The
1. 0 answers
2. asked by jk1115
3. 572 views
I posted a question yesterday asking for some links about guilds during Shakespeare's time. I have two more questions. The first
1. 0 answers
2. asked by Nikki
3. 570 views
how many millimeters are in 5 meters?5000..i think 1000 mm = 1 meter. 5 meters x (1000 mm/1 m) = ?? Thats what I thought. I am
1. 0 answers
2. asked by jenny
3. 570 views
How did the french participation in the American Revolution factor into the growing econimic and social crisis in France?Thank
1. 0 answers
2. asked by ..::LAUREN::..
3. 568 views
Two Congruent angles are supplementary. The measure of each angle is?If A+ A= 180, then... 90
1. 0 answers
2. asked by Paul
3. 564 views
(1) Which of the following ingegers can not represent the lengths of the sides of a triangle?(9,10,11) (4.7,9) (4,8,12) &
1. 1 answer
2. asked by Peggy
3. 563 views
PLEASE HELP!Okay I'm DESPERATE. Can somebody please tell me what n^3-64 divided by n-4 is? And for x/x+2 - 4/x-2 - 1 is the
1. 0 answers
2. asked by Judy
3. 558 views
A basketball player makes a jump shot. The 0.700 kg ball is released at a height of 2.10 m above the floor with a speed of 7.30
1. 0 answers
2. asked by Mary
3. 555 views
For the transformation w=z^2, find the locus of w when z lies on the imaginary axis.I thought the locus would be a line along
1. 0 answers
2. asked by Jake
3. 539 views
Why can sex hormones pass through a cell directly while protein hormones have to attach to the receptor site on a cell membrane?
1. 0 answers
2. asked by Jul
3. 534 views
rewrite each equation as afunction of x.-3y+4y=11Where are the equations? rewrite this equation as a function of x.-3y+4y=11 y=x
1. 0 answers
2. asked by stacy
3. 526 views
I am putting < for the square root abbreviation. I don't know how to use it on my comp.3<99-2<44-6<11=? On a graphing
1. 0 answers
2. asked by Andrea
3. 513 views
Greg needs 234 feet of baseboard tofinish trimming the floors in his house. He has 145 3/4 feet of baseboard. How much baseboard
1. 0 answers
2. asked by Alisha
3. 511 views
k well i had to use substitution to find the point of intersection for these 2 equationsx-y=10 3x+y=11 i chose to substitute y
1. 0 answers
2. asked by thomas
3. 504 views
mi familia es grande, el amar y bueno. Is the ok?Don't say the bueno because that means and.... Here's what your saying: my
1. 0 answers
2. asked by JAVOR
3. 503 views
describe other measurments sociologists use to calculate prejudice?Previously answered:
1. 0 answers
2. asked by tacassala
3. 497 views
Quotient Property: simplify the expression 8* sqrt 13/98*sqrt (13/9)= 88sqrt13 /sqrt0 = 8/3 * sqrt13
1. 0 answers
2. asked by Steve
3. 486 views
Whatwould be the answer 3+9+6+52x963+???The answer depends upon where you put the parentheses. The order of operation makes a
1. 0 answers
2. asked by Crystal
3. 480 views
Why is the molecular formula of a gas not necessarily the same as its empirical formula?answered above.
1. 0 answers
2. asked by sarah
3. 480 views
about this problem , I figured it out and i did get the answer right except that i had forgotten to make it a negative like
1. 0 answers
2. asked by jas20
3. 479 views
3. T^2-25/t^2+t-20= (t-5) (t+5)/ (t-10) (t+2)4. 2x^2+6x+4/4x^2-12x-16= 2(x+2) (x+1)/4 (x-4) (x+1) 5. 6-y/y^2-2y-24= 1/(y+4)
1. 0 answers
2. asked by Margie
3. 465 views
I need help with this problem.Estimate 16 20/21 times 28 3/7 minus 4 13/25 plus 8 2/47 as a whole number or as a mixed number
1. 0 answers
2. asked by Victoria
3. 454 views
Hey, I recently started a literary magazine called The Lotus Reader (site address found under literary magazines on wikipedia)It
1. 0 answers
2. asked by Lotus Reader
3. 454 views
DESCRIBE THE HUMAN CELLS AND HOW THEY HARVEST ENERGY (HOW WE DEAL WITH CARBS, LIPIDS AND PROTEINS.)Thanks!
1. 0 answers
2. asked by Aletha
3. 451 views
Evaluate: (-1)^25 (-2)^3well, the negative one to an odd power is negative one. -2 cubed is -8. What is negative one times
1. 0 answers
2. asked by Ann
3. 447 views
Let f: [a,b] -> R. Given f is integrable and bounded below, show 1/f is integrable.
1. 0 answers
2. asked by Shegiggles
3. 444 views
Whats the formula for FeCl3ferric chloride? im not sure what you're asking
1. 0 answers
2. asked by justin
3. 441 views
The measurement of the angles of a triangle are in the ration 1:3:5, the number of degrees in the measure of the smalles angle
1. 1 answer
2. asked by Ann
3. 433 views
The expression (3x+4) (2x-6) is equavalent to?3x(2x-6)+4(2x-6) multipy out brackets to give: 6x^2 - 18x + 8x - 24 collect like
1. 0 answers
2. asked by Mark
3. 412 views
what coordinate point is the solution to the system?{3x+2y=8 {x-y=1 y=x-1 so 3x+2(x-1)=8 3x+2x-2=8 5x-2=8 5x=10 - - 5 5 x=2 Then
1. 0 answers
2. asked by andrea
3. 412 views
how do u find base times the height?You multiply the base and the height together.....
1. 0 answers
2. asked by bre
3. 402 views
well.... this problem is really easy to approach....which value is th x coordinate of the intersection of 3x+y=15 and x+2y=10?
1. 0 answers
2. asked by jk1115
3. 402 views
What first comes to mind when you see or hear the word blood?red, then death, then if i kept thinking, it wouldn't be a first
1. 0 answers
2. asked by Marie
3. 396 views
solve the system using substitution{x+2y=11 {3x+2y=13 i just told u this one
1. 0 answers
2. asked by andrea
3. 379 views
Substitute -1 for x. Simplify.If f(x) = 4x-3, find the following. f(-1)
1. 0 answers
2. asked by MathGuru
3. 369 views
0.2 <= logx < 2take the antilog of each side.. 10<sup>0.2</sup> < x < 10^<sup>2</sup>
1. 0 answers
2. asked by Jen
3. 368 views
What is the product of 5x^2 and 3x^5?exponents add, so 15x<sup>7</sup>
1. 0 answers
2. asked by Mark
3. 357 views
wat is dilation in math during moving or changing a figure
1. 0 answers
2. asked by jose
3. 339 views

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