Questions Asked on
August 19, 2007

physics
A 0.240 kg ball moves at a speed of 3.0m/s strikes a wall and bounces straight back at 2.40m/s. The collision lasts 0.0150s. How much kinetice energy in joules is lost during the collision? Wouln't you just subtract the final KE from the initial KE? That
asked by manny 
physics
meaning of graw I have never heard that term in physics.
asked by jasreet 
History
Could someone explain the concept of judicial review and its impact on the balance of power in the United States Government? Judical review means that the courts can review congressional and administrative actions to see if they are constitutional. The
asked by Lillian 
chemistry
Again, from my previous question about gravimetric analysis... Why can't NH4Cl be used as a substitute for NH3 in precipitating MgNH4PO4*6H2O? Please critique my thought: I found out that a precipitate is more soluble at lower pH and since NH4Cl acidic, it
asked by Smiley 
chemistry
Please help me with my formal report on "Potentiometric Determination of the Purity and Dissociation Constant of Potassium Hydrogen Phthalate" Please give me links to websites that could be used for my reference... In addition, please do suggest books that
asked by Smiley 
Art.. Color Combinations
Hello, With the following question I know that #3 can create a "cool" mood. Is #3 the correct answer Thank You Of the following color combinations which would best provide a solemn mood? #1 Shades and tints of yellow #2 Red, Yellow and blue #3 blue,
asked by Mandi 
chemistry
sulfur + oxygen > sulfur dioxide Thanks. Do you have a question about this reaction?
asked by inna 
sociology
Describe how the role of the family in society has changed traditional has changed? (b)Explain the link between the nuclear family and industrial society? (c)In what ways does the treatment of elderly people differ between moder society and traditional
asked by pallavi 
algebra
write 9.03 x 10^2 in standard notation. That is 9.02 hundreths, or 0.0902 Celsius temperatur readings can be converted to fahrenheit eadings using the formula F= 9/5 C + 32. What is the Fahrenheit temperature that corresponds to each of the following
asked by lee 
History
What factors motivated King Leopold of Belgium to seek ownership of the Congo region? http://en.wikipedia.org/wiki/L%C3%A9opold_II_of_Belgium Thank you for using the Jiskha Homework Help Forum. Hopefully you have a good history of the Congo. I'm sure we've
asked by Lenny 
history
What kind of leader was Joesph Mobutu? You can read about this dictator in these sites and decide for yourself the type of leader he was. http://en.wikipedia.org/wiki/Mobutu_Sese_Seko
asked by Cassie 
science
three statements that define all living things in term of cell Since this is not my area of expertise, I searched Google under the key words "living cell define" to get these possible sources: http://en.wikipedia.org/wiki/Life
asked by jimmy 
science
a community and all of the nonliving things that affect it Are you talking about an ecosystem? However, this also includes living things. I hope this helps. Thanks for asking.
asked by jimmy 
science
a group of the same kind of organisms that live in the same area at the same time Colony
asked by james 
science
All eukaryoyic cells have membrane compartments called ________ that form when part of the cell membrane an object and pinches off. That statement doesn't make sense.. All eukaryotic cells have membrane compartments called______that form when part of the
asked by james 
science
the cell herdiary material oraganelles at which amino acids are hooked together to make protiens. all of the popilations of different species that live and interact in an area I have to unscramble letters to make 3 words but I am having trouble figuring
asked by shundra 
science
ogranelle that modifies,packages and transport material out of the cell describes an organism that can exist onlly as a group of cells one of the structures a cell uses t o live ,grow and reproduce Ruth, Shondra, Jimmy  We do not do your homework for
asked by ruth 
science
ogranelle that modifies,packages and transport material out of the cell describes an organism that can exist onlly as a group of cells one of the structures a cell uses t o live ,grow and reproduce Why have you posted all these questions under different
asked by ruth 
Algebra
How do you calculate the area of a rectangle. area of a rectangle is length x width.
asked by Joshua 
History
Why was the United States involved in Patrice Lumumba's assassination? Even in the late fifties, "the communists are coming..."paranoia had grips on the US, fanned by partisian politics of the far Right. It isn't clear to me that the CIA was involved
asked by Cassie 
inb
DESCRIBE OTHER CRITERIA THAT COULD BE USED TO MEASURE A MARKET'S POTENTIAL. What criteria have already been discussed? Your question doesn't make any sense without telling us what the "other criteria" are.
asked by HELP 
math/algebra
cab someone help me? solve by quadratic formula 3x^2  5x = 1 I cannot come up with the 5x and get the 1 for factoring. put it into standard form: 3x^2 5x +1=0 a= 3 b= 5 c=1 x= (5 + sqrt (25 12)/6
asked by dee 
history
why did the United States support the reign of of Joseph Mobutu? i understand that the United States wanted to stop the spread of communism and Lumumba was a major impact on that subject and i know that Mobutu's men executed him and that's pretty much why
asked by Cassie 
math/algebra
can someone check my work? x^2 = 22 xãx22 if x^2 is 22, then x is + sqrt 22
asked by dee 
math/algebra
Is this correct 3a^2b/35a^5 * 14a^3b^2/9b^4= 42ab/315a^5b^4 you need to simplify and i belive your exponents on your variables are wrong _______________________________________ try again *** i got (2a^3)/(15b^2) sorry i forgot something, looking back
asked by dee 
math/algebra
Division: x^2 + 2x  15over 4x^2 divided by x^2 25 over 2x10 Will someone show me the steps to work this problem, I have looked and looked at my book but it still makes no sense to me. Help. First, change the division to the reciprocal of muliplication.
asked by dee 
advanced biology
chemical properties describe how a _____ changes into a new substance. This site will give you a definition and examples. http://www.elmhurst.edu/~chm/vchembook/105Achemprop.html
asked by emily 
science leaf collection
Can someone give me a website with names and pictures of all kinds of leaves?If possible by today or tomorrow, I would really appreciate it. Thank you for helping me!!! Stacy =) This site has all kinds of leaf collection pictures.
asked by Stacy 
mass media
what is the controlled ownership and distribution of publications throughout history?
asked by student 
mass media
what are some groups and individuals who have had and not had access to information because of its control prebook manuscripts?
asked by student 
mass media
what are prebook manuscripts and what is the early publishing houses? Prebook manuscripts are the handwritten or typed (wordprocessed) pages of an author's books before it's been edited by the publisher. Check these sites for early publishing history.
asked by student 
mass media
what is today's publishing conglomerates and the organization of todays'publishing industry? Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. If there's
asked by student 
mass media
Thank you if anyone could help me with the previous posts. If you are taking a course in mass media, surely you have a textbook or have been referred to particular websites or reference databases via your school's library. If the above is not true, it
asked by student 
math/algebra
Divide: 2x6/21 divided by 5x15/12 I have worked to this point and now I'm stuck. 2(x3)/7 * 4/5(x5) and I don't know where to go from here. Can anyone point me in the right direction? No. the second term in th denominator factors to 5(x3), which then
asked by Dee 
History
I am doing well with my History class, but am struggling with a few end of chapter study questions. Please assist. What Philosophies of the enlightenment did monarchs adopt in Europe? A. They sought to use education to rationalize their political and
asked by Keith 
Social Studies
What are the basic provisions of the Missouri Compromise? Why was it important to keep a balance of slave and free states in the nation? I can't seem to find an answer that makes sense. Could someone help me out?
asked by Denise 
american history
Hi i have this for school and my text book doesnt have any of the information. Ive been online looking all day and i really need some answers for this. I have to make a timeline which shows changing relationships between the federal govt and private
asked by brandy 
Literature
Is "The Narrative of the life of Frederick Douglass" important to the American educational process in any way? Could someone explain? thanks. There is an idea in the story that education enlightens, not a wrong idea in my experience. ....The truth shall
asked by Amy 
chemistry
The percent composition of iron in a sample of steel can be determined by dissolving a sample of steel in concentrated acid. The resulting solution is then titrated with a permanganate solution. When all of the iron has reacted with the permanganate, the
asked by manny 
physics
hey guys i'm stuck on this one question and i need some help!! thanks, appreciate it..... one gallon of paint (volume=3.786 X 10^3 m^3) covers an area of 25.0 m^2. what is the thickness of the paint on the wall?? could anybody please help guide me through
asked by manny 
math/algebra
Can someone help me with this problem....5x/76x/5=3/35 find the common denominator for the left side You should get it to be 35 multiply both the numerator and the denominator by the number that makes each fraction have a denominaor of 35 After this
asked by ms jay 
Social Studies
Past President John Quincy Adams said of the Missouri Compromise that it was “but a title page to a great and tragic volume.” Past President Thomas Jefferson remarked that the Missouri Compromise was “a fire bell in the night.” (or a warning bell).
asked by Amy 
micole
White light strikes a diffraction grating (930 lines/mm) at normal incidence. What is the longest wavelength that forms a secondorder maximum? I used the equation [(1/d)sin(90)]/m = wavelength: [(1/0.93m)(1)] /2 = 0.5376m. To convert to nm I multiplied by
asked by PHYSICS 
algabra
Solve and graph the solution set.
asked by edie 
math
Multiply and simplify 2/3*13 The answer is 22. Right? if you mean (2/3) * 13 or 2 / (3*13) i believe according to both your answer is wrong Is that (2/3)*13? If so, then (2*13)/3= something other than 22. Or if it is 2/(3*13) = it is not 22. Show your work
asked by KC 
French
This may sound slightly weird but is there a difference in prounciation between these two words: Droite  left Doigts  Fingers I have a dialogue due and I don't want to pronounce anything wrong.  Lorena Ehrstrop I believe there's a small difference
asked by Lorena 
science
what are some of the cuases of overpopulation in Ethiopia The main cause is the food production has decreased dramatically decreased (govt sells food stocks to buy arms) and the GNP has greatly decreased due to the large non productive military.
asked by kelley 
algebra
how would you solve this; Write an equation for the hyperbola with vertices (10,1) and (6,1) and foci (12,1)and (8,1) The centre is the midpoint between the vertices, which is ((10+6)/2,(1+1)/2) or (2,1) so the equation looks like (x+2)^2/a^2 
asked by Marissa 
Physics
I have a question that I don't understand, could you please help me? Thanks! Heres my question: A package falls off a truck that is moving at 30 m/s. Neglecting air resistance, the horizontal speed of the package just before it hits the ground is Isn't the
asked by Soly 
Algerbra 050
Is 3 a terminating decimal? How do I find out? all integers have "terminating" decimals 3 = 3.0 (try dividing 3 by 1 on your calculator)
asked by Kourtney 
math
Approximately 3 out of every 10 students at Greg's college live on campus. The college has 6,000 students. How many of them live on campus? A)
asked by sandy 
math
If $3,000.00 is deposited into an account paying 4% interest compounded annually (at the end of each year), how much money is in the account after 2 years? (Round to the nearest cent.) A)
asked by sandy 
math
A railing for a deck requires pieces of redwood 4 ft 9 in., 13 ft 9 in., and 4 ft 3 in. long. What is the total length of material that is needed? A)
asked by sandy 
Science
I have a science question that I don't quite understand. Would you have to to have physical contact to exert a force? Not necessarily. Could we blow very hard and exert a force on something? When I was a kid I liked to make paper pin wheels and blow on
asked by Jenn 
math
2/3 over 10 equals 1.8/r solve for r. (2/3)/10 = 1.8r. First, invert and multiply the denominator; i.e.,10. (2/3)*(1/10) = 1.8/r 2/30 = 1.8/r Now cross multiply. 2r = 30*1.8 2r = 54 Now divide both sides by 2 2r/2 = 54/2 r = 27 check my thinking. check my
asked by sandy 
Physics
I have a question. What is the difference between gravitational mass and intertial mass? http://www.thefreedictionary.com/gravitational+mass http://www.google.com/search?hl=en&ie=UTF8&defl=en&q=define:Inertial+mass&sa=X&oi=glossary_definition&ct=title
asked by Ashlee 
AP Physics
Would it be correct to say that inertia is the reason a moving object continues in motion when no force exists? I think that is correct. Inertia is the property that allows an object to continue moving in the same direction and at the same velocity unless
asked by Julie