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Questions Asked on February 15, 2007

If a gasoline engine has an efficiency of 21 percent and loses 780 J to the cooling system and exhaust during each cycle, how
1. 3 answers
2. asked by anonymous
3. 5,920 views
The endosymbiont hypothesis offers an explanation for how eukaryptoc cells could have obtained mitochondria and chloroplasts
1. 1 answer
2. asked by Marisol
3. 5,371 views
Two blocks of mass 3.50 kg and 8.00 kg are connected by a massless string that passes over a frictionless pulley. The inclines
1. 1 answer
2. asked by Eric (please help me)
3. 2,922 views
the distance between any two bases on a baseball diamond is 90 feet.What is the best approximation for the direct distance from
1. 6 answers
2. asked by Alexandria
3. 2,316 views
A charged cloud system produces an electric field in the air near the Earth's surface. A particle of charge -2.2 10-9 C is acted
1. 1 answer
2. asked by Frank
3. 1,859 views
At Nick's Bakery, the cost to make his homemade chocolate cake is $3 per cake. He sells three andreceives a total of $21 worth
1. 0 answers
2. asked by Shawn
3. 1,673 views
In Millikan's experiment, an oil drop of radius 1.516 µm and density 0.860 g/cm3 is suspended in chamber C (Figure 22-14) when
1. 1 answer
2. asked by Frank
3. 1,569 views
Suppose that the equilibrium price in the market for widgets is $5. If a law reduced the maximumlegal price for widgets to $4,
1. 1 answer
2. asked by Shawn
3. 1,533 views
In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been
1. 2 answers
2. asked by winterWX
3. 1,480 views
At some instant the velocity components of an electron moving between two charged parallel plates are vx = 1.3 105 m/s and vy =
1. 0 answers
2. asked by Jennifer
3. 1,421 views
When learning pronoun case (subjective pronoun,objective,possessive) do I need to just memorize the list? I am having trouble
1. 0 answers
2. asked by Lex
3. 1,267 views
Out of these, which would be the easiest to write a 2 page paper on the life, times, and work of:Jacques-Louis David Eugene
1. 0 answers
2. asked by Claire
3. 1,234 views
I need help understanding Federalist #46. I have to do a brief summary of it?One of the major controversies about the
1. 0 answers
2. asked by Priscilla
3. 1,200 views
From your experience, predict which of the following reactions are spontaneous.a) Zn(s) + 2H+(aq)--> Zn+2(aq) + H2 (g) b)
1. 0 answers
2. asked by Chris
3. 1,168 views
Bobpursley:Which of the following systems have high entropy? Which systems have low entropy? a. papers scattered randomly across
1. 0 answers
2. asked by anonymous
3. 1,094 views
Can any one help me for this problem?The cube in Figure 23-27 has edge length 1.40 m and is oriented as shown in a region of
1. 1 answer
2. asked by Lauren
3. 1,074 views
The Carter Company's bond mature in 10 years have a par value of 1,000 and an annual coupon payment of $80. The market interest
1. 0 answers
2. asked by Dee
3. 1,058 views
ello, its me again I could anyone read my body paragraph and give me constructive critcism? My homework assignment was to create
1. 0 answers
2. asked by Melolove on neo
3. 922 views
The density of pure gold is 19.3 g/centimeter cube. A quantity of what appears to be gold has a mass of 465 grams and a volume
1. 2 answers
2. asked by Sarah
3. 884 views
why is the Cognitive theory the most popular among contemporary therapists.I'm not sure what you mean by "popular." Very often
1. 0 answers
2. asked by key
3. 856 views
Write a net ionic equation that represents the reaction:1. ionization of HCl3 in water: My answer: HClO3+H20->H3O+ClO3 2. NH3
1. 0 answers
2. asked by Liz
3. 830 views
How does the Supreme Court decide which cases to take?You will find the answer explained at
1. 0 answers
2. asked by Anonymous
3. 806 views
A square of edge length 19.0 cm is formed by four spheres of masses m1 = 6.00 g, m2 = 3.50 g, m3 = 1.00 g, and m4 = 6.00 g. In
1. 0 answers
2. asked by winterWX
3. 794 views
I have to write a comparsion essay comparing the two cities, London and Paris. What are their differeneces? Please help. What
1. 0 answers
2. asked by Marta
3. 754 views
wut is 40% of 1010 x 0.40 = ?? DIVIDE 10 by 40 smart one!!! the answer is 4 because 10 times 40 is 400 then you add the tro
1. 0 answers
2. asked by d
3. 745 views
This a research on HIV/AIDSIt is believed that in 1959 is the earliest known case of AIDS and the discovery suggest that AIDS
1. 0 answers
2. asked by haydee
3. 729 views
I am confused on how to solve this problem :$5000 is invested for 4 years at 7% per annum compound interest. a. what will the
1. 0 answers
2. asked by Jess
3. 722 views
Hi, I have a history essay and I think it's done but I'd like someone to proofread it and suggest corrections first, can someone
1. 0 answers
2. asked by John
3. 698 views
For the floor plans given in exercise27, determine whether the side through the points (2, 3) and (11, 6) is perpendicular to
1. 0 answers
2. asked by stacy
3. 635 views
what is an example of an apostrophe in great expectations-quote plus page number? also for bildungroman,interior monologue,
1. 1 answer
2. asked by Chelsea
3. 629 views
Is cutting a tree reversible? Several things come to mind, maybe not the same tree will grow back or not. Pls help. Thanks much.
1. 0 answers
2. asked by Nathan
3. 625 views
Hi, can you help me figure out what this paragraph says. Se ve en la cara que le duele alguna parte de su cuerpo. Tal vez comio
1. 0 answers
2. asked by brent
3. 617 views
what is the molecular formula of oxide of arsenic in its gaseous state (also I need to explain how this formula came about )??Th
1. 0 answers
2. asked by Angelika
3. 607 views
How do I solve this?((1/t) - 1)/ (t -1) NO CLUE :) :) :) :) :) :) :) :) :)
1. 0 answers
2. asked by Lisa
3. 602 views
my professor has requested us to find out where the word "moment" evoled from. the moment of a force. the edimology of it. i
1. 0 answers
2. asked by chris
3. 599 views
can you give me a poem thatI CAN USE FOR HOMEWORKCertainly, however it may not be so good for whatever you are assigned to do.
1. 0 answers
2. asked by jana
3. 590 views
a bacteria pop. grows exponentially. There are 1500 bacteria after 3 hours and 20,000 after 8 hours.ahving trouble finding the
1. 0 answers
2. asked by Jake
3. 589 views
Does salt water evaporate faster than fresh water?No. The reduction in vapor pressure and evaporaton rate is related to the
1. 0 answers
2. asked by Kara
3. 574 views
A bottle that holds 250 grams of water holds only 175 grams of gasoline. What is the density of the gasoline? Take the density
1. 1 answer
2. asked by Sarah
3. 574 views
How do I change a fraction to a percent? Like 9/15 to a percent for instance.put 9/15 in your calculator and hit equals
1. 0 answers
2. asked by math
3. 567 views
Is decaf coffee completely decaffinated?? .. or are there low amounts of caffiene in brewed decaf coffee?(i'm researching about
1. 1 answer
2. asked by TechnoBoi11
3. 567 views
I've got a paper due on Wednesday over two of Edgar Allen Poe's stories. One is "The Black Cat". I've got everything down except
1. 0 answers
2. asked by Sabrina
3. 555 views
If M angle 1 =3X=10 and M angle2=x=14and clld, find the value of x. Here is what I DID NOT SURE IF I am on the right path
1. 0 answers
2. asked by DANIELLE
3. 553 views
turn this equation:X2 (X to the second power)+16x+15x I'm suppose to use the Distributive Property to factor this
1. 0 answers
2. asked by Ashlie
3. 548 views
A plane trip scheduled between Tampa and St. Petersburg was scheduled for 22 minutes. The distance is about 17 miles. How fast
1. 0 answers
2. asked by H.C.
3. 547 views
We did this in a lab and nothing happened, but I'm pretty sure something was supposed to happen, so my question is:What happens
1. 0 answers
2. asked by Natasha
3. 540 views
How do these court cases affect your life?Tinker vs. Des Moines Roe vs. Wade New Jersey vs. TLO Miranda vs. Arizona Brown Board
1. 0 answers
2. asked by Anonymous
3. 529 views
What does John Lennon fear. It's for a Bio Poemhttp://en.wikipedia.org/wiki/John_Lennon Use Ctrl + F and type in <b>fear</b> and
1. 0 answers
2. asked by Kathryn
3. 524 views
Teh molar mass of a compund is 92.0g/mol. Analysis of the compound indicates that it contains .606g Nitrogen and 1.339g Oxygen.
1. 0 answers
2. asked by mZ. YoU
3. 514 views
Could someone check if Health research is well written, PleaseSee below or this: http://www.jiskha.com/display.cgi?id=1171501206
1. 0 answers
2. asked by haydee
3. 499 views
Can you guys proofread these paragraphs for me please?Where are the pargraphs by Kshore?
1. 1 answer
2. asked by Kishore
3. 487 views
Was John Cabot Married?He was married in 1492, and had three sons: http://en.wikipedia.org/wiki/John_Cabot
1. 0 answers
2. asked by CAL
3. 484 views
The line through (-2,4) that is perpendicular to the x-axis?If you are asking if the line through (-2,4) is perpendicular to the
1. 0 answers
2. asked by Lena
3. 480 views
In the compound tocainide I need to identify the two groups of atoms/groups that are linked with its binding to receptor cells
1. 0 answers
2. asked by ruby
3. 445 views
what do this statement mean light plus light=no lighthttp://www.exo.net/~pauld/summer_institute/summer_day8interference/Interfer
1. 0 answers
2. asked by shantelle
3. 441 views
If anyone could help me out on this please!"All poets and heroes, like Memnon, are the children of Aurora, and emit their music
1. 0 answers
2. asked by Anonymous
3. 432 views
What are some differences between Chinese Americans and Japanese Americans?http://www.jiskha.com/display.cgi?id=1170193455
1. 0 answers
2. asked by latrece81
3. 419 views
list all the arrays for each number.An example number is 8 Im not sure what they mean by array for each number. Can you give me
1. 0 answers
2. asked by Howard
3. 414 views
Solve: (4 - rad 3 i)+3/(4-rad 3 i)-3
1. 0 answers
2. asked by angie
3. 396 views
What are Active X controls?Are we supposed to "enable" or "disable" them? does not matter
1. 0 answers
2. asked by Diana
3. 386 views
(s2)3/4I don't know what you mean. Use ^ to mean an exponent follows. how do you convert mph to miles/meters per second?
1. 0 answers
2. asked by kayjay
3. 380 views
how do you write an equivalent addition equation
1. 0 answers
2. asked by jacob
3. 341 views

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