Questions Asked on
December 14, 2006

Chemistry
Compounds like CCL2F2 are known as chloroflourocarbons, or CFCs. These compounds were once widely used as refrigerants but are now being replaced by compounds that are believed to be less harmful to the environment. The heat of vaporization of CCl2F2 is
asked by Jenn 
physics
A child slides down a slide with a 28° incline, and at the bottom her speed is precisely threefifths what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child Height=
asked by Anonymous 
Math
8 runners are entered in the 1000meter run. How many different first, second, and third place finishes could possibly occur? Is the answer 24? No. 8x7x6 = 336 The first place can be any of eight. For each first place possibility, there are seven possible
asked by Tony 
physics
A father racing his son has half the kinetic energy of the son, who has half the mass of the father. The father speeds up by 1 m/s and then has the same kinetic energy as the son. What are the original speeds a) of the father? b) of the son? I know that
asked by Chris 
Math
An advertisement for a pineapple drink claims that the drink contains 15%pineapple juice. How much pure pineapple juice would have to be added to 8 quarts of the drink to obtain a mixture containing 50% pineapple juice? Let's look at how much pineapple is
asked by Regina 
Brain freezer a.k.a. MATH
Please Help! Are all squares similar? I think that they aren't but i'm not sure. I think this because rectangles can be squares and rectangles can take different forms and shapes. Please help What do you mean by square? A square will always have a 4 sides
asked by Crystal 
PHYSICS
1. Vecor A is 3 units in length and points along the positive xaxis. Vector B is 4 units in length and points along a direction 150 degrees from the positive xaxis. What is the direction of the resultant relative to the positive xaxis? a. 80 degrees b.
asked by anonymous 
Managerial Economics URGENT
The Blue Dragon Restaurant is a new Chinese Restaurant in town. As the only Chinese restaurant in the area, it faces the following daily demand curve: Q = 500 – 25 P Where Q is the number of meals it serves per day and P is the average price of its
asked by Bob 
Managerial Accounting
17.Pid has invested in a machine that cost $70,000, that has a useful life of seven years, and that has no salvage value at the end of its useful life. The machine is being depreciated by the straightline method, based on its useful life. It will have a
asked by Dovey 
Algebra (need help ASAP!!!!)
I didn't get how to do the problem. In my book it says to choose a variable and write an absolute value inequality that represents each set of numbers. Here are the problems I had all real numbers less than 2 units from 0 all real numbers less than 1
asked by Emily 
chemistry
Does this equation need to be balanced? AlCO3 => AlO+CO2 Also, how would this equation be balanced? NiCl+O2 => Ni2O3+Cl2O5 Neither equation you have is an equation so they can't be balanced. Do you mean aluminum carbonate. That would have the formula
asked by Carter 
Math
8 runners are entered in the 1000 meter run. How many different first, second, and third place finishes could possibly occur? Is the answer 24? I think that would be a reasonable answer. Way low. I think 8*7*6=336 permutations
asked by Tony 
TO ALL STUDENTS
Please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her areas. An even better subject heading would
asked by Writeacher 
US History
Unlike a small business, a corporation... a) is owned by stockholders b) passes liability for its debts to its stockholders c) depends upon an owner or owners for its existence d) is not publicly owned or traded on the stock market i think it is a. I
asked by Libby 
CHEM
in addition to previous Q: for eg: why is the oxidation state (#) of Ca in CaH2 "+2"? According to a p.table I have here +2 is the only oxidation # for Ca...but how is that figured? One other eg: the oxidation state (#) of the maganese atom in KMnO4.6H2O
asked by K 
Math
An advertisement for a pineapple drink claims that the drink contains 15%pineapple juice. How much pure pineapple juice would have to be added to 8 quarts of the drink to obtain a mixture containing 50% pineapple juice? This is a mixture problem. Pineapple
asked by Regina 
algebra
factor the expression 4xsquared+35x+24 my answer: (4x+3)(x8) 4x2 +35x+24= 24 = 2x12 24 = 4x6 24 = 8x3***** (4x+3)(X+8) 4X2 + 3X + 32X +24 + 4XSQ. + 35X + 24
asked by Tabby 
History
Which of the following best explains why the "recall" provision was an important election reform? a) it allows voters to remember what measures are on the ballot. b) it allows for removal of an elected offical from office. c) it allows a vote on a measure
asked by tabby 
Algebra (need help ASAP!!!!)
I didn't get how to do the problem. In my book it says to choose a variable and write an absolute value inequality that represents each set of numbers. Here are the problems I had all real numbers less than 2 units from 0 all real numbers less than 1
asked by Emily 
Physics
I have an exam tomorrow and I need to know these questions: 1. Velocity measures all of the following EXCEPT: a. the speed of an object b. the total displacement of an object c. the direction of an object's motion d. the displacement for each time interval
asked by jenna 
algebra
Find the zeroes of each function. State the multiplicity of multiple zeroes. y=(x+3)^3 y=x(x1)^3 I know you're supposed to factor them out, but I'm really not sure how to. Thanks. The equations are already factored out. For the first one, y is zero at x=3
asked by Toni 
Managerial Accounting
John has invested in a machine that cost $70,000, that has a useful life of seven years, and that has no salvage value at the end of its useful life. The machine is being depreciated by the straightline method, based on its useful life. It will have a
asked by Really Need Acc. Help 
Social Science
Consider racial imbalances in education, the economy, family life, housing and crimical justice system, and the health care and politics, of these societal challenges facing modern African American, which do you think are most difficult to overocme and
asked by Sharon 
Algebra
Solve the system 9x5y=119 18x10y=238 Double both sides of the first equation and you have 18x10y =238 which is the same as the second equation. Since the two equations are not independent, there are no unique solutions. Thee are an infinite number of
asked by Tabby 
Business Law
true or false a tenancy at sufferance usually involves a holdover tenant. i think it is true. I agree. http://legaldictionary.thefreedictionary.com/tenancy+at+sufferance what are the features of business law If Atricles of Incorporation were never filed
asked by Rose 
English
"bacteria or germs" is a compound direct object after the gerund "controlling" which is the object of the preposition "of" Make sense? I hope you'll point out to your teacher that nonword that is serving as a direct object after the main verb "showed." =)
asked by Writeacher 
Algebra
Solve the equation using the Quadratic Formula 5xsquared+13x6=0 i think it is 2/5,3 5x^2 + 13x 6 (5x 2)(x +3)=0 You are correct. From Bob Pursley's work you can see that his solution gives +2/5 and not 2/5. The +2/5 is correct. drbob is right on that.
asked by Libby 
us history
which of the following best describes an example of how Progressives worked? a) they worked to free businesses from unnecessary government restraint. b) they worked to make government more responsive to people. c) they allowed govenment leaders more
asked by tabby 
math
Find the zeroes of the function y=3x^33x So I factored that to y=3x(x^21) but am not sure about the zeroes. I know that 0 and 1 are zeroes, but am not sure how to get a zeroe from x^2. Thanks. Factor it again to get 3x (x+1)(x1) The zeroes are where any
asked by Tanya 
Math
Does 3/4 belong in the group, integers and rational numbers. in order it goes:Natural #s1,2,3,4... Whole #s0,1,2,3,4... Integerswhole #s & opposites(negatives) Rational #snumbers written in fractions or decimals Please read: (Broken Link Removed) 3/4
asked by Katie 
Electric currents and magnetic fields
Within a material, what results in the conversion of an electron's energy to thermal energy and electromagnetical energy? The electron moving makes an magnetic field, if it changes, there will be an electric field with the magnetic field. Thermal energy is
asked by Kalee 
english
"Injustice anywhere is a threat to justice everywhere" what does this mean? Someone explain it plz. I think it means that if there is no justice or no fairness in a certain place, makes others think that doing the same thing is okay. thanx.
asked by Emma 
algebra
evaluate the expression for the given value of the variable. 4(3h6)3(4h+5)/6+h ; h=3 i think it's 37 I believe you made a mistake somewhere. Check your steps. 4[3(3)6]3[4(3)+5]  63 Let's do the top, first. 4[96]3[12+5]
asked by tabby 
algebra
y varies directly with x If x=52 when y=130, find x when y=140 i got 61 x/52 = 140/130 x= 52(140/130) Put 52(140/130) in the google search window.
asked by tabby 
math,algebra
can someone explain to me how to solve for the following: Directions:Find the GCF of 6,18, and 30 well to get the answer you need to find the biggest comon factor that all of the numbers can evenly go into. like with 3, 6, 9 you would take 9 and write/type
asked by Jasmine20 
Physics (E&M)
A uniformly charged straight wire (radius a) has linear charge density lambda. The wire is coated with a dielectric material chi with external radius b. I need to find the electric field everywhere and the volume and surface bound charge distrobutions but
asked by Anonymous 
algebra
identify the equation of the line through (1,4) and parallel to y=6x+4 i got y=6x+10 Isn't the slope of the original line from y=6x+4 equal to 6. Your solution has a slope of +6. Are those two lines parallel? i have to identify the equation of a line
asked by eddie 
Science  Oceanography
Primary food source for abyssal organisms? Phytodetritus? Just a guess.... :) Phytodetritus is the major food source for abyssal benthic communities. choice of dead whales and other larger orgainsms which fall to the bottome or the rain of detritus and
asked by Marsha 
Rate of Change
There is a question on my homework that asks use d=1032200t to the approximate the distance in miles and time in hours of a pilot from her destination. find the distances for the time values given in 2a and 2b 2a:t=1.5 hours 2b:t=4.8 hours how do i solve
asked by Ashley 
French
I have to write an essay on this prompt: Decrivez un conflict que vous avez vecu ou que vous avez observe. Donnez les circonstances du conflict et expliquez ce qu'on a fait pour le resoudre. Indiquez vos sentiments sur les resultats. Form what I understood
asked by cbarnett 
biology
the information you gather during an experiment is called your? http://www.c4md.org/research/method.html Look at #4 carefully when there
asked by Anonymous 
science
Describe the identifiable physical properties of substances and explain how changes in these properties can occur without changing the chemical nature of the substance. Mass & density are 2 properties of matter. When water freezes it expands making it less
asked by stan 
math
y= 2sin^2 x y=1 sinx find values of x inthe interval 0
asked by Candy 
Math
I just wanted to check my answers with anyone willing to take the time. Identify all sets that 3/4 belongs to: a.whole #s, integers, rational #s b.rational #s c.integers, rational #s d.odd #s, whole #s, integers, rational #s Ithought it was C How many
asked by Katie 
Philosophy
Provide a premise that would permit the valueexpressing conclusion "Sarah ought to tell the truth" from the descriptive premise "Sarah's son is asking if he's adopted." Sarah's son is asking if he's adopted. Sarah's son has access to his birth
asked by Anne 
need help on conversions
Use the density of water: 1gram/ml= 1g/cm^2 looks like the volume of 1 cm^3 has a mass of one gram. 1 cm3 of water weighs 1 gm. would you help with converting 1cm3 of water to grams
asked by bobpursley 
algebra
solve the compound inequality 3x5>17 and 4x+3
asked by Rose 
HISTORY
By the end of the 1800's jobs employed ____________ between the ages of 10 and 16? Who owned much of the Western land near prime transportation routes? What fraction of the soldier's out West deserted? Child Labor was the scourge and economic engine of the
asked by ANONYMOUS 
Finance
im trying to calculate cost of debt. where did they get the 50 value from? P0 = $1,080 = $50(PVIFA,R%,46) + $1,000(PVIF,R%,46) 30 year bond, 10% semi annual. 7 years ago it was issued. current selling is 108% face value.
asked by James 
science
what is the difference between mass and volume? Mass is how much an object weighs. Volume is the amount of space the object takes up.
asked by tiffany 
Common Knowledge
Does any one know any very good science fair project website. The ones that a very extravegent. Please don't tell me to google it becuase I have tried and I am looking for recommendations. Here are some sites you might want to look at.
asked by Gina 
business law
In most states a person under age 18 does not have a) testamentary capacity b) testamentary consent c) testamentary formality d) all of these i think it's d.
asked by Rose 
Philosophy
Why aren't all causal studies done as experimental studies, rather than nonexperimental studies? Sometimes the effect is not desired. What causes murders? What causes Rape? what causes child molestation? Does one want to do causal experimentation?
asked by Anne 
PLEASE HELP managerial economics
I just need an answer check on these true/ false questions, PLEASE: 1. A principalagent problem occurs when managerial decisions are inconsistent with the firm’s revenue maximizing objective. False 2. A firm making less than a normal profit would have
asked by Dylan 
Philosophy
a) Using long or short truth tables (symbolize as necessary and show tables) determine and state whether the following argument is valid, briefly explaining your table; and b) if valid, demonstrate validity by deductions using Group I rules. Arg If Peter
asked by Anne 
Need help on my report on a famous Chemist
http://www.liv.ac.uk/Chemistry/Links/refbiog.html Would you please help me with my report on a famous chemist, i need ideas on who i should do it on, and i need to identify his/her contributions to my life, and the report has to be one and a half to two
asked by bobpursley 
Chemistry Test Tomorrow
I don't actually have problems, but I have a test over stoichiometry tomorrow, which is pretty much going to determine my semester grade. I was just wondering if anyone knew any helpful tips, hints, or just an easier way to explain the basics of
asked by Trish 
biology
the name given to the idea that life could rise from nonliving matter is called? (Broken Link Removed)
asked by danny 
business law
If a person is injured as a result of an unreasonably dangerous or defective product, how will he or she most likely recover damages for the injury? a) hold the retailer of the product strictly liable. b) hold the wholesaler strictly liable c) hold the
asked by Rose 
ScienceOceanography
Bioluminescence in the marine environment is: a. Widespread amonth both invertebreates and the fishes? b. limited to plankton and survace dwelling organisms? It is widespread. Scroll down to Organisms that bioluminesce here:
asked by Marsha 
Science
What does a source of electrical energy do in an electrical circuit?
asked by Icy Rose 
Algebra
 20> 8 +7a Solve inequalities like you would an equation, EXCEPT if you multiply or divide by a negative number, reverse the inequality sign. Let's look at your problem:  20 > 8 + 7a First subtract 8 from both sides (whatever operation you do to one side
asked by steph 
Algebra
12  5z/4 < 37 125z/4 < 37 Subtract 12 from each side. 5z/4 < 25 Mulitply each side by 4 to cancel out the negative and 4 in the denominator. Switch the inequality symbol because you are multiplying/dividing by a negative number. 5z > 100 Divide each
asked by steph 
Math
I have 16 numbers: 3,5,10,11,15,20,8,11,9,10,10,12,13,14, 15,10. These numbers have to be arranged in a 4 by 4 (horizontally and vertically) where each row equals 44. Please Help! Jumping rope can burn 600 calories per hour. write and solve an inequality
asked by Dianne 
English
help me pls.. How the puritans were different from the people of the Revolutionary period? WHo coined the phrase "There are many times that try men's souls"? Who felt God was on the colonists' side and would help them win the war? the choices fo WHO
asked by ethan 
CHEM
What is the exact method/formula used to calculate oxidation state #'s? & how does one know when to use the correct oxidation state #? For example: Carbon carries 4,2,4; Cl= 1,5,7,1; and, Mn=2,3,4,7. Thanx. You use the seven rules in your text. Assigning
asked by K 
Philosophy
Is not telling the truth morally wrong from a divine command perspective? IT depends on the divinity involved. Think about that. What about telling a halftruth? Again, it depends on the divinity invoked. I know religious teachers who lie, cheat, and
asked by Anne 
math
how do you add and subtract and multiply and divide fractions? I searched Google under the key words "fractions add subtract multiply divide" to get these possible sources:
asked by josh 
Algebra,mATH
Can someone help me correct this Directions:Divide 6p^5q^3 times 25 p^5q^3 / 5p^5q^5 My answer is : 30q^2 6pppppqqq*25pppppqqq/5pppppqqqqq= 30pppppq = 30p5q huh? Answered above.
asked by Jasmine20 
Inclusive Language
Each advisor was contacted by his students. Exactly what do you need to do with this sentence? ?? Need to have sentence to be correct in a nonsexist form. The sexist word there is "his"  how can you rephrase that sentence and not have that pronoun
asked by Carla 
Writing
I have to write a business letter persuading the manager to return my money for damaged merchandise. Any ideas or suggestions? He should because: 1.It's the store policy 2. WalMart does 3. You are a loyal customer 4. You'll never shop there again if he
asked by Yolanda 
Dr bob222,math
How is 6p^5q^3 x 9p^5q^3 / 5p^5q^5= 30p^5q because isn't it both have the same exponents and letters therefore they should cancel and be left with 30q^2 The equation started at as 25 for the second part of the numerator and not 9. 6p^5q^3 x
asked by Jasmine20 
science Oceanography
Behavior in fishes and other marine organisms, such as vertical migration, countershading, and breeding cycles are in responce to? Sunlight. choices of responses to: a. Penetration of light in the sea b. Temp changes with depth c. seasonal changes of
asked by Marsha 
algebra
Write a polynomial function in standard form with the given zeroes: x=1/2, 0, 4 My equation is p(x)=x(2x+1)(x+0)(x4) Is that right? If so, can you explain how to multipy this out correctly. Thanks in advance.
asked by Mary 
algebra
solve the compound inequality 3x5>17 and 4x+3
asked by Rose 
Marketing Mgtn
Based upon your current perception of marketing, how would you define the function of marketing within your organization?
asked by Zeta 
challenging math problems! :]
1. a total of 120 numbers can be formed using all 5 digits 1, 2, 3, 4, and 5. If these numbers are arranged in increasing order 12 345, 12 453, up to 54, 321, which one is the 75th number in this order? *can someone tell me how to do this problem???^) 2.
asked by gary 
math,algebra
can someone explain to me how to find the gcf of 6,18,and 30 does 6 divide evenly into them all? What does GCF mean?
asked by Jasmine20 
World History
What are five influences from ancient Greece that can be found in todays society???? i need help i wnet to all these different web sites but they all gave me different answers.. Thanks Please be sure to let us know what you already have. Then we'll know
asked by Teri 
Philosophy
For the following argument, a) Translate into standard form (if not already in standard form), b) symbolize to simplify, and then c) determine whether the syllogism is valid or invalid, explaining why by reference to rules, AND by showing the appropriate
asked by Anne 
islamic studyes
is it bad to fight? why? Most religions believe it is bad to fight  except when you're defending yourself  or fighting bad impulses within yourself.
asked by zabir 
business law
rulebased ethics is most often reflected in our legal system through a) our elected representatives b) legislatures c) court decisions d) majority rule i think the answer is c Right! Courts are responsible for making sure that our laws follow the rules
asked by Rose 
MATH!!!!ASAP!!!
How can i graph this equation by plug in numbers???? x^2y^2=9 HELP PLZ!!!!!!THX ALOT!!!! Assign numbers to x and solve for y then put them in a graph: let's say x is 3 Then 9=y^2+9 y^2=0 y=0 Ok now x= 4 16=y^2+9 y^2=5 y=2.236 Also you can assign y a
asked by Katrina 
algebra, math
Can someone help me correct this. (2)Directions:express 0.047 as apercent My answer: 4.7% correct
asked by Jasmine20 
algebra
solve the system by the method of substitution x4y=21 3x+y=2 I got (0,2) Try plugging in x=0 and y=2 into your first equiation and uopu will that your answer must be wrong. Do it this way: x  4y =21 12x+ 4y =8 13 x = 13 x = 1 y = 2  3x = ? x=0 and
asked by Rose 
algebra
write the number in the form a+bi 6  the square root of 9 i got 3i 6  3i
asked by eddie 
business law
In most states a person under age 18 does not have a) testamentary capacity b) testamentary consent c) testamentary formality d) all of these i think it's d.
asked by Rose 
Algebra
3x  1 > 14 3x1>14 3x>14+1 3x>15 x>5
asked by steph 
Math
what iz 4,000x500? put 4000*500 in your google search window 12h = sec
asked by EmilyRulz555 
Science
What is the main substance made during? Photosynthesis (Broken Link Removed)
asked by Marissa