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Questions Asked on February 9, 2007

In which of the situations listed below is energy being transferred as heat to the system in order for the system to do work? In
1. 1 answer
2. asked by anonymous
3. 1,845 views
copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939 amu and relative abundance of 69.17%. Use the atomic
1. 0 answers
2. asked by Jill
3. 1,400 views
I'm doing a worksheet on the physical features of the former Soviet Union. There are some physical feature names I'm not sure
1. 0 answers
2. asked by Monique
3. 1,139 views
Three boxes are connected by cords, one of which (mA) wraps over a pulley having negligible friction on its axle and negligible
1. 0 answers
2. asked by **chocolatekisses
3. 1,129 views
Can someone please proofread my Spanish? I'm adding what I'm trying to say in English to make things easier. Thanks.ENGLISH:
1. 0 answers
2. asked by JYD
3. 1,069 views
Find the volumes of the solids generated by revolving the region in the first quadrant bounded by the following about the given
1. 0 answers
2. asked by Shawn
3. 1,050 views
A mixture of gasoline vapor and air is placed in an engine cylinder. The piston has an area of 7.4*10^-3 m^2 and is displaced
1. 0 answers
2. asked by anonymous
3. 1,020 views
1. find the square root of 25answer 5 2. find the median of the following set of numbers 33,72,23,27,77,68,85 answer 68 3. find
1. 0 answers
2. asked by carla
3. 962 views
In which of the situations listed below is energy being transferred as heat to the system in order for the system to do work? In
1. 0 answers
2. asked by anonymous
3. 922 views
what is the difference between a theory and hypothesis?I got this off another site i hope it helps.. Scientific Laws,
1. 0 answers
2. asked by Jamie
3. 874 views
Given: F(x)= 5x^2a) find a simplified form of the difference quotient b) find the average rate of change (difference
1. 0 answers
2. asked by Dee
3. 870 views
Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 70 pm. Calculate the volume of the
1. 1 answer
2. asked by Tagen
3. 834 views
determine the equation of the line in y=mx+b form that passes through1. (-8,1) & (-9, 2) 2. (3,7) & (-5, 9) 3, (-4,0) & (4,6)
1. 0 answers
2. asked by thomas
3. 818 views
Could you help me fine 2 more punctuation mistakes in this article?Presidential first ladies have been an active force in
1. 0 answers
2. asked by marco
3. 804 views
Fill the seven quart. Empty into the five quart, leaving two. Mark the 7 quart jar at that 2 quart level. dump the five quart
1. 0 answers
2. asked by bobpursley
3. 797 views
Why is Piggy's fall emphasized?This site should help with that question. http://www.sparknotes.com/lit/flies/
1. 1 answer
2. asked by ktjo
3. 786 views
Which would spoil more quickly ground beef or steak?You have to define "spoil". If you mean bacteria that grows in the presence
1. 0 answers
2. asked by Ebby
3. 749 views
unscramble tertcueas (it's in french and the beginning is les...)This <b>might</b> work: http://www.ssynth.co.uk/~/anagram.html
1. 1 answer
2. asked by Jacky
3. 717 views
First off, thanks for the help on the other problems...For the reaction, A(g) + 2 B(g) <==> 2 C(g), Kc = 1 x 10-10 at 25°C.
1. 0 answers
2. asked by Marisol
3. 696 views
U=2xywhat is du/dx ? u=2xy du=2x dy + 2y dx du/dx= 2x dy/dx + 2y
1. 0 answers
2. asked by Lun
3. 695 views
Which of the following is the best definition of Hess' Law?A. Heat is always released by the decomposition of 1 mole of a
1. 0 answers
2. asked by christine
3. 692 views
A company donated 200 books to a local library. If 70 of them are fiction, what percent of the donated books are fiction.35% is
1. 0 answers
2. asked by Stormie
3. 681 views
Plutonium-239 is used in nuclear bombs. Determine the number of protons and neutrons in plutonium-239.I really don't understand
1. 0 answers
2. asked by Benny
3. 680 views
Can someone show me how to even do this problem.Find all positive values for K for which each of the following can be factored.
1. 0 answers
2. asked by jasmine20
3. 664 views
14 is what percent of 200100/200 =x/14 read as 100% is to 200 as x% is to 14 solve for x by cross multiplying x=7 check it .07
1. 0 answers
2. asked by jen
3. 645 views
I need to find a balanced chemical equation for the reaction that occurs when sodium cyanide dissolves in water. So far I have
1. 1 answer
2. asked by Sam
3. 645 views
Which one has an optical isomer?butryic acid t-butanol 2-bromo-2-methylbutane 2-amino-2-methyl-butal-1-ol I know it's not
1. 0 answers
2. asked by Marisol
3. 644 views
I'm having trouble analyzing the second verse. The first one talks about the different ways that death has faced soldiers. I
1. 3 answers
2. asked by Lisa
3. 642 views
Can someone explain to me how to find the equation pf the line in the form Ax + By + C =0 ifa) parallel to x=3 and passes
1. 0 answers
2. asked by thomas
3. 637 views
can someone correct this for me please.Directions: Solve the system by substitution. x + y = 12 y = 2x this is what i did: in
1. 0 answers
2. asked by jasmine20
3. 629 views
What is Nunavut's nickname and motto?Scroll down to the weather section of this site for Nunavut's nickname. (Broken Link
1. 1 answer
2. asked by Joel
3. 627 views
What steps do you think can be taken to reduce the harmful effects of human activities on biogeochemical cycles? Which
1. 0 answers
2. asked by David
3. 620 views
I have to find out some facts about the dwarf planet vulcan. I have tried wikipedia but it was no help. Can any one please give
1. 0 answers
2. asked by liza
3. 609 views
Directions: Facotor each of the following polynomials completely.14x ^2 -20x + 6 the answer that i got was: 7x^2-10x+3=
1. 0 answers
2. asked by jasmine20
3. 596 views
Ok, I am supposed to find out what the variables are by factoring and finding square roots. I couldn't find the right factors of
1. 0 answers
2. asked by Emily
3. 582 views
Manipulation of the Cobb Douglas Equation gives us expression for output per working age person:growth rate of
1. 0 answers
2. asked by joe
3. 573 views
Which factors that affect rate involved in making a campfire?temperature, amount of cooling wind, size of tender, dryness of
1. 0 answers
2. asked by Ebby
3. 567 views
1 four buttons have diameters of 5/8 , 3/4, 9/16, and 7/8 which buttons is smallest?answer 9/16 2. I spent 1/3 of my time doing
1. 6 answers
2. asked by larry
3. 567 views
To get the lower quartile and upper quartile do I get the median then find the median of the numbers above and below the median?
1. 0 answers
2. asked by Austin
3. 564 views
I need help with this specific proof:Given: CE bisects Angle ABD FB and CE are strraight line segments Prove:angle x = Angle a
1. 0 answers
2. asked by Leah
3. 556 views
can you explain the slave trade and the 3/5 th compromise to me? what states were involved in this trade?http://www.aaregistry.c
1. 0 answers
2. asked by lin
3. 554 views
reatstuec in French (begins with les)Thank you for using the Jiskha Homework Help Forum. Sorry but it's too late this evening
1. 0 answers
2. asked by Jacky
3. 540 views
how does aids effect african people?It kills them. It leaves kids as orphans. It drains vast economic resources to try to
1. 0 answers
2. asked by Anonymous
3. 537 views
Consider the following gas phase reaction: 3A(g)+ 2B(g) <==> 1C(g)+4D(g). At 181.1C, Kp=270.91. Calculate Kc under these
1. 0 answers
2. asked by Marisol
3. 533 views
how critical do you think having a mission statement is relative to the overall success of an organizationMy frank opinion is
1. 0 answers
2. asked by zeta
3. 529 views
how are some African people and nations working to improve their economic situation?Some African people are leaving. Northern
1. 0 answers
2. asked by preston
3. 527 views
Hi.-It's Margie and I have a Math Lab to do but I don't get this.If you can, please help.:Use the Pythagorean Theorem to find
1. 0 answers
2. asked by [C]razy Baby.-[iloveyou] (Margie)
3. 525 views
Why do many African countries have so much foreign debt and why is it harmful to African civilians.They borrow money to help the
1. 0 answers
2. asked by harrison
3. 516 views
rewrite the equation 2x-3y= -6 as a function of x.My answer. f (x) = (2)/(3) x + 2 No. 2x=3y - 6 divide by two. x=3/2 y -2 hold
1. 0 answers
2. asked by jasmine20
3. 501 views
Given: f(x)=x^2-1Find a simplified form of the difference quotient. I will be happy to critique your thinking. I am not going to
1. 0 answers
2. asked by dee
3. 495 views
How does africa's mineral wealth effect the economy?The mineral wealth is the only thing that attracts investment. Without
1. 0 answers
2. asked by carly
3. 473 views
You create a new folder called Catalogs on the second drive in the server and copy the 50 catalog files into that folder, and
1. 0 answers
2. asked by Anonymous
3. 471 views
X=view of the seaY=wine Price of X: Px=0 Price of Y: Py=5 Income=10 Assume that a person does not look at the view beyond the
1. 0 answers
2. asked by Summer
3. 468 views
given f(x) = 5x - 3, find f (-1).My answer: f(-1)= 5(-1)-3 = -5-3 = -8 correct
1. 0 answers
2. asked by jasmine20
3. 423 views
How do you convert miles per minute into minutes per miles??Help me please! invert. 30miles/min convets to 1min/30miles
1. 0 answers
2. asked by kayla
3. 420 views
What are the main points to consider when choosing a monitor?What is the footprint? The user's eye sight. Cost. There may be
1. 0 answers
2. asked by Diana
3. 411 views
i need help on graphing inequalities. i don`t understand everything! HELP!(Broken Link Removed)
1. 0 answers
2. asked by andrelyn
3. 392 views
10 is what percent of 20020%
1. 0 answers
2. asked by jen
3. 384 views
I need help on this12(p+3)>2+ 13(p+3)+3 multiply out the parenthesis subtract 12 p from both sides. Add to both sides 2+39 +3.
1. 0 answers
2. asked by Jon
3. 368 views
Fx = d(x) * q(x) + r(x)if r cant be o and d(x) = 2 what is r?
1. 0 answers
2. asked by tofu
3. 301 views

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