Sunday
August 31, 2014

Posts by Leah


Total # Posts: 370

chemistry
Answer the following for a primitive cubic unit cell. Answers should be numerical, set r = 7.0. edge in terms of r, the lattice pt radius=? face diagonal in terms of r, the lattice pt radius=? body diagonal in terms of r, the lattice pt radius=?
February 16, 2009

Math
what is 13 1/2 - 11 5/16?
February 8, 2009

physical
how do i get a 45 year old inactive male who weighs 280lb and has a body comp of 55% lean mass and 45% fat mass.down to his goal! his goal is to alter his body comp to 80%-20% and lower his weight to 200lbs
February 1, 2009

spanish
I updated my paragraph. Can you see if this is written correctly? Yo soy una buena candidata porque soy siempre flexible, dedicada, y trabajadora. Hace más de cinco anos que nado. Me he entrenado para ser una salvavidas. Me gusta estar al aire libre y cerca de una ...
January 31, 2009

chemistry
An aspirin tablet weighing 0.475 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric flask. Exactly 3.00 mL of the solution was ...
January 26, 2009

chemistry
What is the % transmittance for each of these errors Washing a cuvette with DI water, then failing to rinse it with the solution to be measured Failing to wipe off fingerprints from the cuvette. Changing the wavelength from maxtomax+10 nm.
January 26, 2009

math
how far is it from California to colodrado?
January 20, 2009

math
(1/x - 3/x+4) / (1/x square - 16) please help me with this question if you can show the work or explain how to solve.
January 15, 2009

math
the concentration of a mixture is guven be the following function: c(t)=(2x+9)/3(x+12) A.what is the maximum amount of concentration that this function can reach in terms of percent? B. what is the name of the line you looke for to answer part A.
January 15, 2009

ms. sue, english please!
What if assistant teaching is being used as a verb? Hyphenated or not? As in: I have been assisant teaching with my grandmother for four years.
December 23, 2008

english
Really? I thought it was hyphenated.
December 21, 2008

english
Is 'assistant-teaching' connected by a hyphen or should it be two separate words? Thanks!
December 21, 2008

Question??? English
ooo...yeah so this are the answer chooses...sorry to mention that...jejeje
December 10, 2008

Question??? English
1. a Christmas feast 2. a new dress 3. a doll 4. a beautifully decorated Christmas tree
December 10, 2008

Question??? English
In The Year of the Perfect Christmas Tree, what Ruthie wants for Christmas is 1. a Christmas feast. 2. a new dress. 3. a doll. 4. a beautifully decorated Christmas tree.
December 10, 2008

6th grade
woopsy looks like 10 mins are up
October 30, 2008

My short Story called deeper ever deeper
It's good, though there may be some grammer mistakes. I didn't know it would have a sad ending though. Overall, a good story
October 29, 2008

Health
If I have 20/70 vision what is the power of the lenses needed to correct my vision (how do I calculate it?)
October 28, 2008

math
thank you u save my life
October 2, 2008

math distributive property
what is the answer to 5{45+5}=
September 26, 2008

5th grade
how many thousandths are in a hundredth?
September 7, 2008

pre algebra
the number of months in y years
August 18, 2008

math
How do you do array multiplication? e.g. 59 times 67
August 17, 2008

Math
because he has no tea
May 13, 2008

physics
A 4400 kg car can acceletare from 0-25 m/s in 4 seconds. What force must the engine created to accomplish this acceleration? 176 N 1100 N 17600 N 27500 N An elevator is moving up with an acceleration of 3.36 m/s squared. What would be the apparent weight of a 64.2 kg man in ...
April 30, 2008

physics
An incident X-ray photon of wavelength 0.2800nm is scattered from an electron that is initially at rest. The photon is scattered at an angle of 180.0 degrees and has a wavelength of 0.2849nm. Use the conservation of linear momentum to find the momentum gained by the electron. ...
April 26, 2008

chemistry(vapor pressure)
When a student plotted ln [vapor pressure of a gas] vs. inverse Kelvin temperature, she obtained a straight line with a slope equal to -20000 K. According to the Clausius Clapeyron equation, (triangle)Hvap is ? kJ/mol
April 24, 2008

Chemistry.. help plz
whats the anwser?
April 13, 2008

Microbiology
Molecular chronometers are used to determine the course of evolution. Explain in full what these are and how they are used. Why, even with this "tool", is evolution still so complex?
April 13, 2008

Microbiology
You have a debate in your study group whether rRNA alone can be used to determine the relatedness of organisms up to species level. Explain IN FULL whether you agree or disagree.
April 13, 2008

History
What is the offical name of modern china?
April 8, 2008

Algebra.
The sum of 6 times Jack's age and 5 times Larry's age is 63. Jack is 1 year less than 3 times as old as Larry. Find eachh of their ages.
March 27, 2008

math
Can someone please help me with my question? I don't understand how to find the line of best fit.
March 6, 2008

math
Okay, thanks.
March 6, 2008

math
Thank you, but I have another question. Would I have to square root r^2, because how else would I find the value or r?
March 6, 2008

math
I don't understand this problem at all. It involves finding the line of best fit. The question says, for a set of data, the line of best fit is y= -3x-4 and that r^2 is 0.22. What is the correlation coefficient? I don't know how to solve this.
March 6, 2008

Pre-Algebra
Simplify 8Y^2 - 3Y + 3Y^2 - 4Y + 12
March 4, 2008

Pre-Algebra
Simplify: -2W+4R-W+-10R+6
March 4, 2008

Pre-Algebra
-7(p-3)+2p=24
March 4, 2008

Math
-4-5-7h=49
March 4, 2008

Science
I did a science experiment on batteries. I ran five brands of AA Alkaline batteries until they would no longer run a small light bulb. I measured the voltage of each battery every hour. I did this experiment four times using the same type of light bulb and the same brand of ...
February 17, 2008

chemistry
please anwser this
February 11, 2008

chemistry
the structure is not angular in water
February 10, 2008

chemistry
its not D
February 10, 2008

science
when sedimentary rock is buried it may change into metamorphic rock. describe two causesof this change.
January 31, 2008

physics!
The mass of an automobile is 1160kg, and the distance between its front and rear axles is 2.54m. The center of gravity of the car is between the front and rear tires, and the horizontal distance between the center of gravity and the front axle is 1.02m. Determine the normal ...
January 5, 2008

Algebra
what is the y-intercept of the line with a slope of -3 and a y-intercept of -5? How so i do this problem?
December 9, 2007

Social Studies
I am doing a crossword puzzle. One of the questions was "The electoral college was developed because some of the founding fathers believed that too much democracy was a very ____thing
November 8, 2007

science
how do pesticides affect fertilisers herbicides in a food web? help!
October 27, 2007

Biology 1010
intermediary metabolites enters the ciric acid cycle and is formed, in part, by the removal of a carbon (co2) from one molecule of pyruvate
October 21, 2007

math
wHAT ARE THE PRIME FACTORARIZATON OF 180?
October 2, 2007

ECONOMICS---- & desperate !!!!!
Last one... I've done so many that I'm simply mind-boggled as of now! Until the early 1980's, Japan required its large insurance companies to invest all of their vast holdings in Japanese securities. At the prompting of the U.S. , Japan relaxed the restrictions and...
September 5, 2007

ASAP-before we were free
Hope you can find something. I went to 3 different sites I know of but nothing came up for that book.
September 5, 2007

Economics
Last one... I've done so many that I'm simply mind-boggled as of now! Until the early 1980's, Japan required its large insurance companies to invest all of their vast holdings in Japanese securities. At the prompting of the U.S. , Japan relaxed the restrictions and...
September 5, 2007

Economics
Last one... I've done so many that I simply mind-boggle as of now! Until the early 1980's, Japan required its large insurance companies to invest all of their vast holdings in Japanese securities. At the prompting of the U.S. , Japan relaxed the restrictions and ...
September 5, 2007

Economics
Go to the website w w w .u s t r . g o v From this site, what are some of the key trade issues for the U.S. government today?
September 5, 2007

maths
40= 5x+2y+z 16=x+z 10=x+y solve for x x=10-y plug into 2nd equation 16=10-y+z z=6+y plug into first 5(10-y)+2y+6+y=40 y=8 plug in.. 10=x+8 x=2 2+z=16 z (vase)=14
September 1, 2007

Spanish
The crisis of the Roman Empire facilitated the invasion from Spain from the year 409 d.C., by various towns "barbaric" Germans.
August 31, 2007

Calculus
Use the position function s(t)=-4.9t^2+ 150, which gives the height (in meters) of an object that has fallen from 150 meters. Teh velocity at time t=a seconds is given by: lim as t approaches a s(a)-s(t) divided by a-t a) find the velocity of the object when t=3 b) at what ...
August 31, 2007

French
Could anyone direct me to some websites that tell the differences between French and American Schools? Not necessarily the education process but schools in general. For example French students go to school six days a week as opposed to the American five-day school week.
August 29, 2007

Anatomy and Physiology
Why is the epidural space absent in the brain? Since this is not my area of expertise, I searched Google under the key words "brain 'epidural space'" to get these possible sources: http://depts.washington.edu/anesth/regional/epiduralspacetext.html http://en....
July 20, 2007

English
can you help me unscramble this word?? PERMANSU It's a bird, its a plane, its .... So if you didn't get that hint, so soak in a Kryptonite hot tub.
June 21, 2007

analogies
actress
April 23, 2007

Math
I need help with this specific proof: Given: CE bisects Angle ABD FB and CE are strraight line segments Prove:angle x = Angle a
February 8, 2007

french- subjontif
ok! i have a huge french test comming up in 2 days and i need help with memorizing the subjontif and imparitif of a verb as well as infinatif. (sorry, i cant spell!) Thank you for using the Jiskha Homework Help Forum. To memorize, you need to analyze what type of learner you ...
January 16, 2007

hard math
please someone help me! i've tried so hard! factor m^6 + n^2 28x^2y^2 - 7x^4 8x^3y^3 +343z^3 thank you so much!!! For the second one: 28x^2y^2 - 7x^4 Factor out 7x^2: 7x^2(4y^2 - x^2) Now we try to factor 4y^2 - x^2, which is: (2y + x)(2y - x) We end up with this: 7x^2(2y...
January 7, 2007

tricky psychology
what do agonists do? in comparison with older people babies a. sleep more fitfully, they tend to wake up more often b. sleep more deeply, they spend more time in stages 2 and 4 sleep c. spend more time in the rem stage than any other sleep stages d. spend more time in stage 1 ...
January 3, 2007

FRENCH! HELP!
so i have this french test tomorrow on imparitive, and subjonctif. i have had a lot of trouble remembering them, and telling them apart. can anyone help!? that would be fantastic! thank you so much! its urgent! Imperative (note spelling) means giving a command or an order. The...
December 20, 2006

algerbra
x=1 y=23
December 4, 2006

Science
The answer is B. K9
October 9, 2006

Pages: <<Prev | 1 | 2 | 3 | 4

Search
Members