Sunday

April 19, 2015

April 19, 2015

Total # Posts: 479

**Physics**

An 81 kg baseball player slides into second base. The coefficiant of kintetic friction between the player and the ground is 0.49. a) What is the magnitude of the frictional force? b) If the player comes to rest at 1.6 s, what was his intial velocity?
*October 22, 2009*

**Math**

Four girls bought a boat for $60.00. the first girl paid-one half the sum of the amounts paid by the other 3. The second girl paid one-third the sum of the amounts paid by the other 3. The third girl paid one-fourth the sum of the amounts paid by the other 3. How much did the ...
*October 4, 2009*

**MATH ??**

I looked at a 1938, 39 & 40 calender and they are all still on the same day. What am I missing thanks for your help
*October 4, 2009*

**physics**

The centers of a 11 kg lead ball and a 70 g lead ball are separated by 8.0 cm. What gravitational force does each exert on the other?
*September 29, 2009*

**calculus**

I have a couple of questions that I'm not sure how to do! 1) Given f(x) = (x^2 - 2x + 1) for x does not equal 1 and (k) for x = 1 Determine the value of k for which f is continuous for all real x. a) 0 b) 1 c)2 d)3 e)none of the above i think the anser is a but i'm ...
*September 24, 2009*

**Chemistry Octane Combustion**

YOUR MOM
*September 15, 2009*

**Math**

thank you
*September 9, 2009*

**Math**

Write 8/25 in Decimal (use the prime factorization of the denominator and explain if it repeats or terminates).
*September 9, 2009*

**math**

32/(4+4)* 2 to the third power-7=
*September 9, 2009*

**science**

A diesel engine's piston compress 16cm3rd of fuel air mixture into 1cm3 The pressure changes from a atmosphere to 48 atmospheres if the initial temp. of the gas was 305k What was the final temerature
*August 4, 2009*

**business**

What is the impact of computer graphics on the research report writing format?
*June 17, 2009*

**hum 130**

Is indigenous religion in australia still practiced today?
*June 2, 2009*

**Science**

Is heat transferred from a cool surface to a warm one or is it vice versa? Thanks
*May 30, 2009*

**com/220**

how do I quote a source from the library
*May 24, 2009*

**algebra**

the length of a rectangle is twice the width. The area is 200yd^2. Find the length and the width.
*May 3, 2009*

**science**

Amino acids that you obtain from eating foods are classified as A. essential. C. extracellular. B. facilitated. D. inorganic. A - is this correct
*March 25, 2009*

**math**

Im sorry the questino sould actually be deermine it algerbraically. 2^x+1-8=5^(1/3x) Please help me, I have tried so many times to get the rght answer and I can't.
*March 15, 2009*

**math**

Determine the value graphically. 2^x+1-8=5^(1/3x)
*March 15, 2009*

**English**

For English class, we're doing a vocab. review for seventh graders, as part of our teaching project. Should seventh graders know what inevitable means? What age should people know that word by? Thank you.
*March 15, 2009*

**math**

3 2/3*2 7/8
*March 2, 2009*

**precalculus**

(cos^4ө- sin^4ө/ cos^2ө)+ tan^2ө = {(cos^2ө-sin^2ө)(cos^2ө+sin^2ө)/cos^2ө}+tan^2ө = 1{(cos^2ө-sin^2ө)/cos^2ө}+tan^2ө =?
*February 22, 2009*

**precalculus**

I dont understand this problem: (Tanө + cos ө)/ (sec ө + cot ө) so I start off like this: ={(sinө / cos ө)+cosө}{cos ө + (sinө/cosө)} =[(sin ө +cos^2ө) (cos^2ө +sin ө)]/ cos ө but what ...
*February 22, 2009*

**the language of healthcare**

Describe the following approaches used to organize information about the body. Also provide an example for how each approach is used. Body planes and directions Body Cavities Quadrant and regions Anatomy and physiology Microscopic-to-macroscopic Body systems Medical speciality
*February 5, 2009*

**geometry**

what does it mean when the scale factor (ratio) of the actual object to its model is less than 1? ; greater than 1?
*December 3, 2008*

**LSU**

How many 3 cm cubes will fit into a 1m cube?
*December 2, 2008*

**LSU**

How many 2 inch cubes will it take to make a rectangular prism that is 8 inches by 10 inches, by 14 inches?
*December 2, 2008*

**LSU**

A can of black olives has a diameter of 8 centimeters and height of 20 cm. If the can contains 15 olives, each approximately 2 cubic cm, then what is the approximate volume of the liquid filling the can?
*December 2, 2008*

**LSU**

What happens to the volume of a right circular cylinder if you double its diameter?
*December 2, 2008*

**LSU**

Determine the surface area of a cylinder whose height is 2m and whose base has an area of 9 pi m square?
*December 2, 2008*

**spanish need help**

the rest are correct but 1 is escribía
*November 22, 2008*

**math**

i dont under stand! my teacher made it look easy, but when i went to do my home work, the book said something totaly differrent. it starts of withthe age of some joggers, 10-19 and trhe frequency is 5? please make it easyer! this is not making sense!
*November 17, 2008*

**math**

how to show that 7/8 is bigger than 5/6
*November 13, 2008*

**science.. please help!!**

i need to find two articles in anything to do with an ecological concern (ex. pollution as a threat to our ecosystem)... please help me find a site, i can't find any good ones!!
*October 27, 2008*

**math**

its the |A+B+C|=4.. because our P.O.I was (2,-2), therefore A=1(2) + B=-1(-2) and C=-4....that makes 2+2-4.. that's 0
*October 22, 2008*

**math**

ok, but if i were dealing with the formula ... *absolute value*Ax+By+C/over -> *square root* A^2 +B^2
*October 22, 2008*

**math**

Find the exact value of the shortest distance from the origin to each line. y=x-4 is the equation of the line. When i do the problem I keep on getting 0 but that's not the answer!!! please help me.
*October 22, 2008*

**math**

indo european number system
*October 12, 2008*

**plz integrate**

how do u integrate 1+u/3u+2u^2 please help me get started ...tnk u
*October 8, 2008*

**integrate**

to be more specific...i know its best for me to attempt the problem so for the first problem i used substitution as v=3u dv=3du du=dv/3 so answer i got was 1/3 ln3u is that correct? and on the second on i tried x*x^-2 as x^-3 dx so ans is -1/2x^-2 is that correct? please let ...
*October 8, 2008*

**integrate**

do i use the subsitution rule?
*October 8, 2008*

**integrate**

integrate du/3u and integrate x/x^2 dx it might be simple...i just need a head start...tnx
*October 8, 2008*

**integrate**

how do i integrate 2u du /u-2+2u^2 so i used subsitution rule? or can i used integration by parts and how? thanks in adnvace
*October 8, 2008*

**antiderivative**

i need help with finding anti derivative of -2xe^x +y-6x^2 dx so i use the integration by parts to solve for -2xe^x?
*October 8, 2008*

**differential equations**

the directions are to determine whether or not the equation is exact if so then solve it. the question is (x-y^3+ysinx)dx = (3xy^2+2ycosx)dy i solve and i got that it is exact because My is -3y^2+2ysinx and Nx is -3y^2+2ysinx since m and n are equal then they are exact then i ...
*October 8, 2008*

**english**

this is making me crazy, please help, rearrange these words to make new ones. mad policy Erin land A stew sir moon starers
*October 1, 2008*

**Global : Columbus**

Because he stole crops and other items from Native Americans and took them slaves and brought them to his country many times. Native Americans who either crossed over a bridge in the ice age or canoed on boats.
*October 1, 2008*

**Local Enviornmental Issue Checkpoint**

Discuss an environmental problem that you feel is significant in your town or city. What are some causes? Are any of these causes related to human values and environmental ethics? Explain.
*September 5, 2008*

**Driver's ed?**

i need help with my homework
*August 31, 2008*

**Language**

What do these words have in common; door, fry, horn, pastry, toast, window? Thank you
*August 26, 2008*

**algebra**

-2(x-1)+3(x-1)=4(x+5) 1/2x+7=3/4x-4
*June 17, 2008*

**Math**

Please help 7+(-9) + (-5) + 6 1/3 + (-5/6) + (-1/2)
*March 19, 2008*

**science**

1.when air is cold, it has less ______. 2.the expansion joints _______ when it is cold outside. 3.the expansion joints ______ when it is hot outside. 4.what might happen to a road without expansion joints? The _____ is a blank need answer please and 4 need it to be short ...
*February 28, 2008*

**science**

landslide
*February 28, 2008*

**Math**

Describe an application for the use of ratios or proportions
*February 28, 2008*

**Math**

Can you show me how you did this problem please.
*February 28, 2008*

**Science**

The role of protein in hormone/enzyme functions? How protein assists with immunity? The protein needs of an infant or toddler compared to an adult? The importance of protein in maintaining fluid/electrolyte and pH balance? Amino acids and how they relate to athletics? Any good...
*February 21, 2008*

**Math**

Please check double check me please. For the decimal 8.57932 What is the place value of 5? Ten Thousandths What is the place value of 2? Ones Write each of the following as a common fraction or mixed number 4.0171 Answer: 4 171/10,000 Arrange in order from smallest to largest ...
*February 19, 2008*

**algebra 1**

simplifying radical expressions the square root of sixty
*February 19, 2008*

**stupid test online**

HAY YOU GUYS ARE LIKE SO STOOPID GET A LIFE!!!!!
*February 6, 2008*

**science**

why are electromagnetic waves called perpetuating waves?
*December 1, 2007*

**Science**

why are electromagnetic waves called perpetuating waves?
*December 1, 2007*

**English**

hiiiiiiiiiiiiii r u indian??????????????
*December 1, 2007*

**Social Studies**

Is nortordomes predictings true will the world end in four years?
*October 30, 2007*

**Algebra 1**

8y-2y How do you do it?
*September 24, 2007*

**Math**

Hey I forgot how to do this certain question: 2(3x-8)+7=x+3-4x
*September 6, 2007*

**Biology**

How can you tell when to use a field study instead of a controlled expirement?
*August 30, 2007*

**reading**

When is the book, "Maniac Magee", taking place? http://en.wikipedia.org/wiki/Maniac_Magee If the author doesn't give a specific time setting (year or decade or whatever), then he probably means for it to be a "timeless" story, one that could happen ...
*July 19, 2007*

**chemistry**

1. decrease absorbance and decrease % transmittance 2. decrease absorbance and increase % transmittance 3. increase absorbance and decrease % transmittance 4. decrease absorbance and increase % transmittance
*May 10, 2007*

**Math**

Keiko has 7 colors of lanyard. She uses 3 different colors to make a keychain. How many different combinations can she choose? 7 for the first, 6 for the second and 5 for the third. The answer is the product of those numbers, no matter what order the three colors are picked. ...
*May 6, 2007*

**Microbiology**

How would someone identify an unknown bacteria? "Due to the prospect of interplanetary travel, how would you attempt to isolate and identify a bacterial infection acquired on another planet. This bacteria is unknown to use and does not appear in Bergey's or the manual...
*May 5, 2007*

**Microbiology**

Due to the prospect of interplanetary travel, how would you attempt to isolate and identify a bacterial infection acquired on another planet. This bacteria is unknown to use and does not appear in Bergey's or the manual of clinical microbiology. Look for the properties of ...
*May 4, 2007*

**Spanish**

I am from florida lakeland
*December 13, 2006*

**mangerial eco**

you are the manager at the cadillac division of GM. If the marketing department has estimated that the annual demand for the escalde is Q=100,000-1.25P what price should you charge in order to maximize revenues from sales? Total revenue is P*Q. So, TR = 100,000P - 1.25P^2. ...
*November 30, 2006*

**please help me paraphrase**

Heroines are not always victims of unfriendly forces beyond their control. but are the instead, challengers who confront the world rather than waiting for success to fall at their pretty feet. Heroines of this sort are not numerous in oral tales and do not exist at all in any ...
*October 25, 2006*

**AMERICAN GOVERNMENT**

Why does the Constitution and the Declaration of Independence are called Living documents? I need an answer why to write my government report. The Constitution is a living document because we can amend and change it. Also, the Supreme Court continuously interprets the ...
*October 19, 2006*

**math**

what do we call the numbers that cannot be arranged into 2-row arrays?
*August 31, 2006*

**math**

um take home test...i have no idea what im doing always sometimes never 1. sin2x=2sinx 2. cos (pie/3+x)=-sinx 3. if tan x=3 and tan y=2 then tan (x+y)=5 4. when you use the half angle formulas you choose whether to use a + or - by noting in which quadrant the angle lies 5. ...
*June 11, 2006*

**Dr.Bob (thx) Check my work for this one pls**

I love you
*June 11, 2006*

**Dr.Bob (thx) Check my work for this one pls**

Oh my god i am not in 8th grade
*June 11, 2006*