# Questions Asked onDecember 14, 2006

1. ## 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

2. ## physics

A child slides down a slide with a 28° incline, and at the bottom her speed is precisely three-fifths what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child Height=

3. ## 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? No. 8x7x6 = 336 The first place can be any of eight. For each first place possibility, there are seven possible

4. ## 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

5. ## 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

6. ## 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

7. ## PHYSICS

1. Vecor A is 3 units in length and points along the positive x-axis. Vector B is 4 units in length and points along a direction 150 degrees from the positive x-axis. What is the direction of the resultant relative to the positive x-axis? a. 80 degrees b.

8. ## 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

9. ## 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 straight-line method, based on its useful life. It will have a

10. ## 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

11. ## 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

12. ## 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

13. ## 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

14. ## 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

15. ## 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

16. ## 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

17. ## algebra

factor the expression 4xsquared+35x+24 my answer: (4x+3)(x-8) 4x2 +35x+24= 24 = 2x12 24 = 4x6 24 = 8x3***** (4x+3)(X+8) 4X2 + 3X + 32X +24 + 4XSQ. + 35X + 24

18. ## 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

19. ## 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

20. ## 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

21. ## algebra

Find the zeroes of each function. State the multiplicity of multiple zeroes. y=(x+3)^3 y=x(x-1)^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

22. ## 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 straight-line method, based on its useful life. It will have a

asked by Really Need Acc. Help
23. ## 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

24. ## Algebra

Solve the system 9x-5y=119 18x-10y=238 Double both sides of the first equation and you have 18x-10y =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

true or false a tenancy at sufferance usually involves a holdover tenant. i think it is true. I agree. http://legal-dictionary.thefreedictionary.com/tenancy+at+sufferance what are the features of business law If Atricles of Incorporation were never filed

26. ## 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 non-word that is serving as a direct object after the main verb "showed." =)

27. ## Algebra

Solve the equation using the Quadratic Formula 5xsquared+13x-6=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.

28. ## 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

29. ## math

Find the zeroes of the function y=3x^3-3x So I factored that to y=3x(x^2-1) 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)(x-1) The zeroes are where any

30. ## Math

Does -3/4 belong in the group, integers and rational numbers. in order it goes:Natural #s-1,2,3,4... Whole #s-0,1,2,3,4... Integers-whole #s & opposites(negatives) Rational #s-numbers written in fractions or decimals Please read: (Broken Link Removed) -3/4

31. ## 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

32. ## 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.

33. ## algebra

evaluate the expression for the given value of the variable. 4(3h-6)-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] --------------------- 6-3 Let's do the top, first. 4[-9-6]-3[-12+5]

34. ## 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.

35. ## 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

36. ## 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

37. ## 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

38. ## 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

39. ## Rate of Change

There is a question on my homework that asks use d=1032-200t 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

40. ## 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

41. ## biology

the information you gather during an experiment is called your? http://www.c4md.org/research/method.html Look at #4 carefully when there

42. ## 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

43. ## math

y= 2sin^2 x y=1- sinx find values of x inthe interval 0

44. ## 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

45. ## Philosophy

Provide a premise that would permit the value-expressing 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

46. ## 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

47. ## algebra

solve the compound inequality 3x-5>-17 and 4x+3

48. ## 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

49. ## 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.

50. ## 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.

51. ## 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.

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.

53. ## Philosophy

Why aren't all causal studies done as experimental studies, rather than non-experimental studies? Sometimes the effect is not desired. What causes murders? What causes Rape? what causes child molestation? Does one want to do causal experimentation?

I just need an answer check on these true/ false questions, PLEASE: 1. A principal-agent 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

55. ## 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

56. ## 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

57. ## 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

58. ## biology

the name given to the idea that life could rise from nonliving matter is called? (Broken Link Removed)

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

60. ## Science-Oceanography

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:

61. ## Science

What does a source of electrical energy do in an electrical circuit?

62. ## 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

63. ## Algebra

12 - 5z/4 < 37 12-5z/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

64. ## 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

65. ## 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

66. ## 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

67. ## 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 half-truth? Again, it depends on the divinity invoked. I know religious teachers who lie, cheat, and

68. ## 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:

69. ## 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.

70. ## 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

71. ## 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. Wal-Mart does 3. You are a loyal customer 4. You'll never shop there again if he

72. ## 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

73. ## 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

74. ## 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)(x-4) Is that right? If so, can you explain how to multipy this out correctly. Thanks in advance.

75. ## algebra

solve the compound inequality 3x-5>-17 and 4x+3

76. ## Marketing Mgtn

Based upon your current perception of marketing, how would you define the function of marketing within your organization?

77. ## 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.

78. ## 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?

79. ## 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

80. ## 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

81. ## 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.

rule-based 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

83. ## MATH!!!!ASAP!!!

How can i graph this equation by plug in numbers???? x^2-y^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

84. ## algebra, math

Can someone help me correct this. (2)Directions:express 0.047 as apercent My answer: 4.7% correct

85. ## algebra

solve the system by the method of substitution x-4y=-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

86. ## algebra

write the number in the form a+bi 6 - the square root of -9 i got -3i 6 - 3i

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.

88. ## Algebra

3x - 1 > 14 3x-1>14 3x>14+1 3x>15 x>5