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2010
February

Questions Asked on February 23, 2010

Describe objects that have each of the following types of symmetry. Line, Point, Plane, 90° rotational
1. 1 answer
2. asked by alicia
3. 740 views
whats a descriptive observation
1. 0 answers
2. asked by Anonymous
3. 380 views
why helium gas absorb heat?
1. 1 answer
2. asked by karthika
3. 321 views
Find dy/dx if y= (6x sqrt(x^3) (-2(cubic root of x+ pie^4).
1. 1 answer
2. asked by Matt
3. 416 views
in low temperature physics,at joule thomson effect hydrogen does not show cooling effect at room temperature why?
1. 1 answer
2. asked by karthika
3. 530 views
in joule thomson effect,why the temperature of inversion leads to negative sign?
1. 1 answer
2. asked by karthika
3. 495 views
which has the highest lattice energy BaO or SrO
1. 4 answers
2. asked by Jack
3. 3,035 views
Fill in the blank.1. In 1791 congress passed a tax on American-made _________________ as part of a plan to help pay the federal
1. 0 answers
2. asked by Sarah
3. 630 views
Calculate the theoretical amount of CaCl2 that would be required to change the temperature of 50 mL of water from from
1. 2 answers
2. asked by sakura_09
3. 1,386 views
Fill in the blankThe ______________________ stated that the U.S. would not take sides with any European countries at war with
1. 1 answer
2. asked by Sarah
3. 398 views
calculate the final temperature (once the ice has melted) of a mixture made up of initially of 75.0mL liquid water at 29 degrees
1. 3 answers
2. asked by Celine
3. 2,032 views
see if on tlc silica if the polar solvent moves slowly then does even polar substances rf value is low? and the nonpolar rf is
1. 1 answer
2. asked by KKSAI
3. 479 views
Assume the height of a hill is 50m, calculate:a.the velocity of a car at the bottom ofg the hill b.the height at which it will
1. 3 answers
2. asked by bola
3. 1,984 views
An electric charge q creates a field of 4500 N/C at a point d away from the charge. The potential at that point is +1800V.
1. 1 answer
2. asked by Hailey
3. 430 views
When brakes applied to a moving car travelling at 60km/hr it decelerates at a uniform rate of 5ms-2. Calculate the time taken to
1. 7 answers
2. asked by bola
3. 1,826 views
Should illegal drugs be illegalized in the United States?
1. 1 answer
2. asked by Lynne
3. 464 views
Please can you help me to find out which courtroom in Wellington has panelling from the Old Bailey. I am thinking the High
1. 0 answers
2. asked by Sam
3. 333 views
should recreational drugs be legalized in the united staates?
1. 1 answer
2. asked by Lynne
3. 464 views
Hi guys, i get stuck with this question. Pls help. thanks so much. I know there are 4 atoms in FCC.A gold particle was measured
1. 2 answers
2. asked by kat
3. 870 views
Hi guys, i get stuck with this question. Pls help. thanks so much. I know there are 4 atoms in FCC.A gold particle was measured
1. 0 answers
2. asked by kat
3. 468 views
Hi guys, i get stuck with this question. Pls help. thanks so much. I know there are 4 atoms in FCC.A gold particle was measured
1. 2 answers
2. asked by kat
3. 655 views
How many moles of methanoic acid you have in a 25g sample of ethanoic acid
1. 1 answer
2. asked by JAY
3. 399 views
PLEASE HELP SOLVE....8+2>4(2))+1
1. 2 answers
2. asked by Lori
3. 297 views
Can you answers the Q's about a Notable American Explorer ?I need to know all about Sir Francis Drake Can you please tell me :
1. 1 answer
2. asked by AvatarSandS
3. 658 views
Determine wether triangle deef is cogruent to triangle pqr given the coordinates of the verticles.
1. 2 answers
2. asked by Trey
3. 529 views
For each of the following possible events, indicate whether the demand or supply curve for dollars would shift, the direction of
1. 0 answers
2. asked by Babi
3. 558 views
For each of the following possible events, indicate whether the demand or supply curve for dollars would shift, the direction of
1. 1 answer
2. asked by Babi
3. 623 views
Could someone give me some advice on how to tackle this question please?Explain briefly why the changes in albedo and the other
1. 1 answer
2. asked by Dawn
3. 549 views
A dilute sulfuric acid solution that is 3.39 molality H2SO4 has a density of 1.18 g/mL. How many moles of H2SO4 are there in 375
1. 2 answers
2. asked by Nick
3. 728 views
I know when solving inequalities the sign changes when you multiply or divide by a negative number, my question is does this
1. 1 answer
2. asked by Michelle
3. 1,208 views
How do you construct a quadrilateral with two pairs of parallel sides of length 4 cm and 6 cm and one pair of opposite angles
1. 1 answer
2. asked by MIcky
3. 1,182 views
-4b-8=8
1. 3 answers
2. asked by michelle
3. 265 views
Can you tell me which of the following statements are correct? Thank you very much.1) For my main course I'd like grilled
1. 1 answer
2. asked by Franco
3. 898 views
A single conservative force acts on a 5.00 kg particle. The equation Fx = (2x + 4) N describes this force, where x is in meters.
1. 2 answers
2. asked by gina
3. 1,188 views
What is the length of the hypotenuse of the right angle ABC if AB = 5 and AC = 6
1. 2 answers
2. asked by Carol
3. 755 views
-4(-3x+5y+5)+7(5x+2y-1)
1. 1 answer
2. asked by melissa
3. 273 views
I forgot to include the following statements.1) Answer four out of (or just "of") the following six questions. 2) do you usually
1. 1 answer
2. asked by Franco
3. 1,234 views
how do I count the vertices of a rectangle
1. 1 answer
2. asked by kim
3. 166 views
Early in 2007, Inez Marcus, the chief financial officer for Suarez Manufacturing, ws given the task of assessing the impact of a
1. 3 answers
2. asked by jeffer
3. 2,280 views
By setting up and solving a proportion involving x, find the value of x for the car that you have chosen. State the type of car,
1. 2 answers
2. asked by Stephanie
3. 589 views
The following questions contain numbers and you have to do different things with the number in each question. I'm not sure of
1. 2 answers
2. asked by Abbyy
3. 598 views
a park has 4 hiking trails. trails A and B go from the lodge to the dock. trail A is 1/2 mile long, and trail B is 2/3 mile
1. 2 answers
2. asked by Nathan
3. 583 views
okay i have a question which is on a key assesed pieceexplain the physical and chemical changes when a candle burns using the
1. 2 answers
2. asked by minka
3. 1,034 views
find the equation (in slope intercept form) of the line with the given slope that passes through the point with the given
1. 0 answers
2. asked by jerson
3. 694 views
what does the positive slope of a line with Government expenditure (G) represent when Y=Total expenditure is on the x axis.For
1. 0 answers
2. asked by Salman
3. 1,013 views
37. Hyphaea. increase the surface area-to-volume ratio of the fungus b. have slender filaments c. allow for efficient uptake of
1. 3 answers
2. asked by mysterychicken
3. 755 views
College students average 7.8 hours of sleep per night with a standard deviation of 45 minutes. If the amount of sleep is
1. 3 answers
2. asked by Anonymous
3. 1,755 views
If you replace the equal sign of an equation with an inequality sign, is there ever a time when the same value will be a
1. 2 answers
2. asked by Michelle
3. 488 views
type of chemical reaction equationH3PO4+KOH=K3PO4+H2O
1. 1 answer
2. asked by norma
3. 1,770 views
write each number as a power of 21.1/8 2.square root of 2 3.3 to the square root of 4 3(4 how do you do it???
1. 1 answer
2. asked by alyssa.
3. 340 views
The Minnetonka Corporation, which produces and sells to wholesalers a highly successful line of water skis, has decided to
1. 1 answer
2. asked by Anonymous
3. 631 views
what's 7 x 3
1. 2 answers
2. asked by mrDumb
3. 292 views
A commercial resistor can safely dissipate power only up to a certain rated value. Beyond this value, the resistor becomes
1. 4 answers
2. asked by San
3. 957 views
The nominal resistance R of the resistor used in this experiment was printed on the resistor by the manufacturer. According to
1. 3 answers
2. asked by Joseph
3. 695 views
Imagine you want to add a sprinkler system and the location of one section of the sprinkler line can be described by the
1. 3 answers
2. asked by Karine
3. 454 views
The typical resistance of the tungsten filament of a 60 watt incandescent light bulb when it is turned off is 24 ohms and its
1. 2 answers
2. asked by Joseph
3. 2,045 views
Mercury is poured into the open end of a J-shaped glass tube, which is closed at the short end, trapping air in that end. How
1. 0 answers
2. asked by Isabel
3. 906 views
type of chemical reaction synthesis, decomposition, double or single K+B2O3=K2O+B
1. 2 answers
2. asked by norma
3. 2,399 views
how to jump rope
1. 1 answer
2. asked by bigears
3. 314 views
1+1
1. 0 answers
2. asked by katie
3. 246 views
Select all that justify the following statement.3 + (y + 5) = y + 8
1. 1 answer
2. asked by Anonymous
3. 565 views
#33. In two or three well-developed paragraphs, explain how water is treated so that it can be used for safe drinking water.
1. 1 answer
2. asked by y912f
3. 1,022 views
Diacetyl, a substance contributing to the characteristic flavor and aroma of butter, consists of 55.8% C, 7.03% H, and 37.17% O.
1. 2 answers
2. asked by Bob
3. 582 views
the heat of fusion for thallium is 21 J/g, and its heat of vaporization is 795 J/g. Thallium's melting point is 304 degrees
1. 2 answers
2. asked by billy
3. 1,640 views
#34. In two or three well-developed paragraphs, name and describe the five primary air pollutants and provide several sources of
1. 0 answers
2. asked by y912f
3. 537 views
An eardrum can burst when the pressure exceeds one atmosphere and the pressure inside the ear fails to equalize. Determine the
1. 1 answer
2. asked by Alex
3. 594 views
xy+y^2=1 find d^2/dx^2 at (0,1)
1. 0 answers
2. asked by vic
3. 280 views
to what temperature (C) would a solution containing C6H12O6 in 200g of water have to be heated to have a vp of 89.5 mmHg?
1. 0 answers
2. asked by heather
3. 380 views
The volume of a small sphere is 36 pie cm cubed. The volume of a large sphere is 288 cm cubed and its radius is 6 cm.What is the
1. 1 answer
2. asked by renee
3. 639 views
Why does N. Scott Arnold think that even voluntary preferential treatment programs are wrong?
1. 1 answer
2. asked by Charlene
3. 341 views
If possible, describe a geometric figure that can be transformed into itself by each of the following: Reflection, Rotation,
1. 0 answers
2. asked by alicia
3. 521 views
Bernstein writes that today, "debates about immigration often included the claim that 'my relatives came the legal way,' Hom's
1. 3 answers
2. asked by Laura
3. 449 views
If 0.870 mol of liquid Br2 and 720 mL of 0.958 M aqueous NaI are reacted stoichiometrically according to the balanced equation,
1. 1 answer
2. asked by Keri
3. 622 views
#35. In two or three well-developed paragraphs, list the populations that are affected by ultriviolet light and identify the
1. 3 answers
2. asked by y912f
3. 1,625 views
what is none and decane used for and why is this appropriate for each use?
1. 0 answers
2. asked by shelly
3. 340 views
Does anyone know how to say immiscible in spanish?
1. 1 answer
2. asked by Maria
3. 345 views
The United States was founded by immigrants , so why is immigration such a controversial issue now?
1. 1 answer
2. asked by moniquea
3. 496 views
Explain how four red marbles can make up 1/3 of a group of marbles and three blue marbles make up 1/4 of the same group.
1. 5 answers
2. asked by Drew
3. 1,254 views
A student added solid K2O to a 750.0 mL volumetric flask. The solid was dissolved in water and then the flask filled with water
1. 1 answer
2. asked by Mark
3. 630 views
If given the Ka or Kb and pKa and pKb, how do you find the initial concentration of a weak acid/base in a solution given the pH?
1. 1 answer
2. asked by Mark
3. 510 views
What is the measure of the dent angle for a star-shaped polygon with 20 points and a dent angle of 12 degrees?
1. 2 answers
2. asked by Donna
3. 577 views
what does me gusta muy tu. tu hacer me algre mean in english
1. 1 answer
2. asked by jon
3. 467 views
suppose that the area under the curve y=1/x from x=a to x=b is k. the area in terms of k, under the curve y=1/x from x=2a to
1. 1 answer
2. asked by Anonymous
3. 434 views
Ho much energy is needed to change a 50 g ice cube at 0 deg C to a liquid water at 100 deg. C?
1. 1 answer
2. asked by Christopher
3. 392 views
Determine the resulting temperature when 150 g of ice at 0 deg.C is mixed with 300 g of water at 50 deg C.
1. 1 answer
2. asked by Stacie
3. 1,332 views
How to do:4x+80=3x
1. 3 answers
2. asked by J.R.
3. 312 views
I need more facts about the GPS and compass to use in my writing piece.
1. 3 answers
2. asked by sierra (6th grade)
3. 495 views
I need help with rewriting a relation so it is a function!!!!!for example { (1,3), (-8, 7), (2,3), (1, -6), (0,0), (5,3) } I am
1. 0 answers
2. asked by AR
3. 400 views
How much heat is given up when 20 g of steam at 100 deg C is condensed and cooled to 20 deg.C?
1. 2 answers
2. asked by Mary
3. 3,678 views
was their any changes to the ocean since 10 million years ago?
1. 1 answer
2. asked by james
3. 326 views
#34. In two or three well-developed paragraphs, name and describe the five primary air pollutants and provide several sources of
1. 0 answers
2. asked by y912f
3. 804 views
#33. In two or three well-developed paragraphs, explain how water is treated so that it can be used for safe drinking water.
1. 0 answers
2. asked by y912f
3. 1,095 views
wht's needed 4 nuclear fusion to start?Hydrogen nuclie fuse?
1. 0 answers
2. asked by Sara
3. 430 views
In the experiment Nitration of Methyl Benzoatewhy is it important to add the nitric acid-sulfuric acid mixture slowly over a 15
1. 2 answers
2. asked by Kendra
3. 5,892 views
Which weather system is bigger, a hurricane or an extra-tropical-cyclone?
1. 0 answers
2. asked by Sara
3. 475 views
Two loudspeakers in a 20°C room emit 629 Hz sound waves along the x-axis.(a) If the speakers are in phase, what is the smallest
1. 1 answer
2. asked by anonymous
3. 1,878 views
What is the final temperature when 50.0 g of Chromium at 15 deg. C (specific heat of Cr = 0.107 cal/g-deg.) is added to 25 ml of
1. 1 answer
2. asked by Mary
3. 855 views
A multiple choice answers for the question. What is the measure of the dent angle for a star-shaped polygon with 20 points and a
1. 1 answer
2. asked by Donna
3. 1,013 views
a certain gas has a volume of 565 mL at 25 0C and 715 mm Hg.how many moles of gas are there?
1. 0 answers
2. asked by eva
3. 434 views
why is it important to add the nitric acid-sulfuric acid mixture slowly over a 15 minute period?
1. 1 answer
2. asked by Kendra
3. 673 views

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