Questions Asked on
March 3, 2007

Chemistry
Which radioactive sample would contain the greatest remaining mass of the radioactive isotope after 10 years? A. 2.0 grams of 198 Au B. 2.0 grams of 42 K C. 4.0 grams of 32 P D. 4.0 grams of 60 Co By the way the numbers next to the elements are their
asked by Sanjay 
system analysis in transportation INTRODUCTION TO
TruckCo manufactures two types of trucks: 1 and 2. each truck must go through the painting shop and assembly shop. if the painting shop were completely devoted to painting type 1 truck, 800 per day could be painted, whereas if the painting shop were
asked by Lamar 
Physics/Math
A can of sardines is made to move along an x axis from x1 = 0.2 m to x2 = 1.2 m by a force given by F = iF0exp(0.4x), with x in meters and F0 = 4.5 N. (Here exp is the exponential function.) How much work is done on the can by the force? For Further
asked by Technoboi11 
math
can an inner product space v have a t invariant subspace U but also have an orthogonal complement that is NOT tinvariant???
asked by mk 
Calculus
We are calculating the slope of the function f(x) = sqrt(x) at x = 4. f(4) = 2 f(4+h) = sqrt(4 + h) [f(4+h)  f(4)]/h =? You have to pick a small h,and calculate it. Then pick an even smaller value and calculate it again. That's called taking the limit as
asked by Anonymous 
chem
can anyone help me with this question what is the advantages and disadvantages of hydrogen power as opposed to hydrogen fuel, also what is the equation for hydrogen feul? I do not understand your first question. Hydrogen power REQUIRES hydrogen fuel.
asked by ana 
chemistry,
,I NEED TO DRAW A LEWIS STRUCTURE for C2n2,cyanogen,and to state the noble gas,i know the answer is neon,but i have far to many electrons and am getting the gas argon,please help :N:::C:C:::N: please where do u think i am going wrong I don't know. You
asked by jane 
herbert hoover
Most Americans blamed Hoover for the Great Depression. Is that view of Hoover justified? Please post your answer and we'll be glad to comment on it.
asked by Anonymous 
Gen. Chemistry lab
Trying to find mass percent of acetic acid in 25 drops of .683M NaOH solution are required to neutralize 10 drops of cleaning vinegar. Assume that the density of the cleaning vinegar is the same as the density of regular vinegar which is 1.05 g ml1 You
asked by Toni 
English
Hi, If anyone has read Hamlet...I have to write an essay showing how Hamlet is a hypocrite or similar. I need 3 main points of proof. I only have one, which is that Hamlet says he loves Ophelia but hes the cause of her death and he shunned her. I need two
asked by Raj 
Math(Please Help)
x2 6x ____  _____ 3x+4 x+1 *You are supposed to simplify the expresion.I really need help with this and some other problems.Please and Thank you. Perhaps I could help but I can't make heads or tails of your posts. Try using parentheses (and / bar for
asked by Margie 
Chemistry
Does fission store or create energy. I think it creates it... can you help me with my math please? If atoms fission, energy is emitted in the process.
asked by Aj 
French
Thank you for using the Jiskha Homework Help Forum. "Tout le monde le regarde." Next time, YOU try first, please! We HELP rather than DO. Invest in a good paperback dictionary (English to French/French to English.) How do you say "everyone is looking at
asked by SraJMcGin 
Physics drwls please help
Please tell me where I am going wrong. A 59.5 kg person, running horizontally with a velocity of +3.90 m/s, jumps onto a 12.2 kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and
asked by Mary 
Economics Exogenous Demand/Supply Shocks
I need to know which way aggregate demand (AD) shifts according to scenarios and why: 1) Economic booms in both Japan and Europe result in massive increases in orders for exported goods from the United States. 2) As part of its countercylical policy, the
asked by Kelly 
math algebra
Do you want the equation of a line through that point (1,2) with slope m = 4? Use the equation (yy*) = m(x  x*) where x* and y* are the coordinates of the point the line has to pass through. (1,2)m=4
asked by drwls 
MICRO ECONOMICS
You have been allocated an investment budget of $100 million U.S. You are to make a strategic assessment of the microeconomic strengths and weaknesses of the industry in South africa in REFREIGRATORS & FREEZERS as a potential location for this new capital
asked by AKHIL 
Physics
Which electromagnetic radiation: a)will diffract round hills b) can be used to cook food c)can themometers detect d)cause skin cancer e)is ued when taking a photograph with an ordinary camera thanks!! I will be happy to critique your thoughts. Some have
asked by Jessica 
Thomas
What colour and formula are the iron 2+ & iron 3+ chloride complexes? The subject is science not Thomas!! It helps teachers to see the real subject area so they don't waste time reading items outside their realm. =)
asked by James 
math
wat is the squre root of 309 http://www.math.com/students/calculators/source/squareroot.htm
asked by jose 
Sociolagy
Hi, I was wondering if someone could possibly help me out here I'm basically looking for a study to help support my coursework hypothesis, [b]Cocket, M. & Tripp, J. (1994). The Exeter family study: Family breakdown and its impact on children (University
asked by AsStudent 
Math
How do you solve an eguation with 2 variables? You have to have two independent equations to solve for each of the variables.
asked by Jane 
Math
Hi How do I add x/(x+1) + x^3? How do I divide those two numbers as well? adding: get a common denominator, x+1 x/(x+1) + x^3(x+1)/x+1 x(1 + x^3 + x^2)/(x+1) divide? I am not certain what you mean. Thank you so much! What I mean is how do I divide x/(x+1)
asked by Lisa 
algebra
Find the equation of the line passing through the points: (5,5) and (6,5) Hmmm. both y are 5. The line has to have zero slope, and the y intercept is 5 y= 5 is the equation Thank You
asked by jacque 
Riddle
Looking for a word that fits this riddle: Look near a lively game; pointing to a path with a rabbit in its name. There's a place to post riddles at the bottom of the main Jiskha webpage: www.jiskha.com Better results there, too, since you'll have fellow
asked by Elayne 
Physics/Math
What work is done by a force (in newtons) F = 3.1xi + 3.1j, with x in meters, that moves a particle from a position r1 = 2.1i + 2.5j to r2 =  4.9i 3.9j? For Further Reading * Physics/Math  bobpursley, Thursday, March 1, 2007 at 6:27am Work is the dot
asked by Technoboi11 
Physics/Math
A single force acts on a 5.0 kg particlelike object in such a way that the position of the object as a function of time is given by x = 3.0t  4.0t 2 + 1.0t 3, with x in meters and t in seconds. Find the work done on the object by the force from t = 0 to
asked by Technoboi11 
algebra
Find the slope of the line 8x+y=11 Put it in point slope form: y= 8x + 11 slope: 8 y intercept: 11 Thank you
asked by jacque 
chemistry
Hi! i'm kinda having trouble getting this.. Don't understand it really from Ca(OH)2 + 2HCl> CaCl2 + 2H2O How do i calculate Ca+? :You need much more information. 1) do you mean the concentration of Ca+ ion? 2) is there excess HCl? What is given? ok It
asked by Mallory 
chem
Can someone please help me balance this equation? CH3OH + O2 ===> CO2 + H20 Thank you! CH3OH + O2 ===> CO2 + H2O To balance the H, put a two on the right. CH3OH + O2 ===> CO2 + 2H20 H and C are now balanced. O is balanced. Too easy. Are you sure that's
asked by Abby 
algebra
y(9) (times) y(5) Simplify exponents add. y^(59) is ... Thank you
asked by jacque 
Science
A force of 100 newtons was necessary to lift a rock. A total of 150 joules of work was done. how far was the rock lifted? Work=force*distance. solve for distance in meters. plesa help me on my homework come on do it plesa plesa plesa is my last time
asked by jojo 
Physics, spring force
To compute work done by the spring force, calculate the area of a: a)rectangle b)circle c)triangle The spring force changes as a function distance, so triangle if on a F vs x plot
asked by Anonymous 
algebra
How do I solve this equation? a/5  1/5 = 2 multiply both sides by 5. then add one to each side.
asked by jacque 
(expi)^i
can someone tell me how can we calculate (expi)^i. there is one thought to say that it is equal to exp(1) but this is not true. i think that one has to use the euler's equation : exp(ix)=cosx+isinx. but in this case, x=1? and how can we calculate after
asked by natassa 
(expi)^i
This question is not well defined. By 'expi' do you mean exp(i)? In other words, is the expression [exp(i)]^i ? If so, then the answer is undoubtedly exp(1). You can use Euler's equation to show this, but it is much easier to use this fact about
asked by DrPhysics 
reading
http://en.wikipedia.org/wiki/Frankenstein In the book, Frankenstein is the name of the creator of the monster. In popular movies and culture, Frankenstein is often referred to as the __________________. ?? What is the biggest difference between the
asked by Writeacher 
Math
Hi again, I don't know how to solve this problem. cube root of(cube roof of(x1)1) It would be ninth root of 1/(x1) Thank you. Do you think you can explain to me how did you solve it? what are your feelings about math, rate your math anxiety, and
asked by Lisa 
us history
i have a DBQ that i'm not sure how to introduce (the first paragraph). the question is: in what ways and to what extent did constitutional and social developements between 1860 and 1877 amount to a revolution? thanks in advance You might consider something
asked by nina 
algebra
Can someone please check my work on this problem? For some reason, I get the feeling that I did it wrong. sqrt=square root (by the way) 3sqrt10 sqrt5+sqrt2  *  sqrt5sqrt2 sqrt5+sqrt2 (3sqrt10)(sqrt5+sqrt2) =  52
asked by Whitney 
computershtml/javascript
when working in notepad, i need to use popup boxes (alert, confirm,etc). When a user presses ok more boxes come up. however if the user presses cancel i want them to go back to the homepage (thus stopping the other boxes from coming up). how do i do that?
asked by amanda 
the great depression
Describe two causes and effects of the Great Depression. superficial prosperity would be a cause http://www.google.com/search?q=%22great+depression%22+causes+effects&rls=com.microsoft:enus:IESearchBox&ie=UTF8&oe=UTF8&sourceid=ie7&rlz=1I7SUNA
asked by Anonymous 
computershtml/javascript
when working in notepad, i need to use popup boxes (alert, confirm,etc). When a user presses ok more boxes come up. however if the user presses cancel i want them to go back to the homepage (thus stopping the other boxes from coming up). how do i do that?
asked by amanda 
ENGLISH!
hey i need some help =[ for english i have to write a paper about "if i were hamlet what would i do in terms of killing the ghost. it says to take into account the revelations of the ghost, the situation at cort, characters etc....idk how i could create
asked by gina 
business law fill in the blanks
Business law reflects the values of the _________________ _________. common law, society's values, business owners, ordinary consumer??? What does your book say?
asked by Anonymous 
business law
Identify some laws that are different among various states.
asked by Anonymous 
Are we supposed to have a lunar eclipse tonight?!?
same as the subject! well i mean 3/3/07 thank you writeacher you always help me!!! = ) TY EVERYONE!!! = ) http://sunearth.gsfc.nasa.gov/eclipse/OH/OH2007.html That site shows the dates of the lunar eclipses in 2007. tonight in GrifFith iNDIANA AT 8:14PM
asked by Holly 
Home Economics
How come yall never answer my questions? I'm sorry, but I don't see any other home economics questions posted by Mirayah. Please repost your question and I'm sure someone will answer it.
asked by Mirayah 
Science/maths
describe how you could make the following measurements and discuss any problems you might encounter a) finding the volume of a rugby ball b) finding the diameter of tennis ball. c) findin the mass of a grain of sugar a) submerge it in water in a graduated
asked by San 
physics
A cart of mass 340 g moving on a frictionless linear air track at an initial speed of 1.2 m/s undergoes an elastic collision with an initially stationary cart of unknown mass. After the collision the first cart continues in its original direction at
asked by Chris 
physics
In a game of pool the cue ball strikes another ball of the same mass and initially at rest. After the collision the cue ball moves at 3.50 m/s along a line making an angle of 22 degrees with its original direction of motion. and the second ball had a speed
asked by Chris 
Social Psych
Compare and contrast the two routes to persuasion. Which two routes to persuasion are you comparing and contrasting? We don't do your homework, but we will critique and offer suggestions for your ideas. Here are some articles that might be helpful:
asked by Marie 
Math2(Please Help)
4x 8 ___  ______ x+2 x1 *Simplify The Expression I'm going to assume your problem is this: 4x/(x+2)  8/(x1) Use a common denominator since the denominators are not the same. Common denominator is: (x+2)(x1) Rewriting the problem, we have:
asked by Margie 
Math33333
Please help me! Problem: x+2 x3 _________  _________ 2x^2+5x+2 2x^25x3 *Simplify the expression 2x^2+5x+2 =(x+2)(2x+1) 2x^25x3 =(2x+1)(x3) So x+2/(x+2)(2x+1) = 1/2x+1 x3/(2x+1)(x3) = 1/2x+1 Finally 1/2x+1  1/2x+1 = 0 Let's take a look at the
asked by Margie 
math,mathguru
you asked me about how did i came up with my answer this is what i did: Write each fraction in simplest form. #18 (5x^3y^3)/(20xy^4) = (3X(5)X(x)X(x)X(x)X(y)X(y)X(y))/(2X2X(5)X(x)X(y)X(y)X(y)X(y)) = after canceling the common terms top and bottom i am
asked by jas20 
Chemistry
Does fission store or create energy. answered the duplicate question.
asked by Aj 
Science/maths
what are some problems you might encounter when a)finding the volume of a rugby ball b)finding the diameter of a tennis ball c) finding the mass of a grain of sugar can you help me then I help you please w/b a) submerge it in water in a graduated container
asked by San