# Questions Asked onFebruary 9, 2008

1. ## chemistry

3.) A 5.00 x 10^2 g block of metal absorbs 5016 joules of heat when its temperature changed from 20 degrees C to 30 degrees C. Calculate the specific heat of the metal. I used the formula and came with two answers 100.32 joules and 10.01 joules. Which is

2. ## Chemistry AP help

7. A 100g mass of tungsten at 100 degrees C is placed in 200 mL of water at 20 degrees C. The mixture reaches equilibrium at 21.6 degrees C. Calculate the specific heat of tungsten. Ok, I tried working it out but I got q= 100g x 4.186 j/g*degrees C * (21.6

3. ## french

how do you conjugate aimer mieux? do you just conjugate the aimer part?

4. ## Bio-Genetics

In watermelons the allele for green color and for short shape are dominant over the alleles for striped color and for long shape. A plant with long striped fruit is crossed with one heterozygous for both characteristics. The results are: green, short: 14

5. ## physics

A balloon carrying a basket is descending at a constant velocity of 20.0 m/s. A person in the basket throws a stone with an initial velocity of 15.0 m/s horizontally perpendicular to the path of the descending balloon, and 4.00s later this person sees the

6. ## Chemistry

A solution contains 0.0653g of compound in 8.31g of ethanol. The molarity of the solution is 0.0368m. Calculate the molecular weight of the compound For Further Reading Chemisty - drbob222, Thursday, February 7, 2008 at 9:40pm The molarity of the solution

7. ## science

What is the difference between a taiga and a tundra?

8. ## MATH-PERCENTILES

I JUST TOOK A TEAS TEST(FOR PRACTICAL NURSING ADMISSIONS). THE REQUIREMENTS MUST BE A GRADE IN AT LEAST THE 40TH PERCENTILE IN EACH SUBJECT. THERE WAS A MATH, READING,ENGLISH, AND SCIENCE SECTION. TOTAL OF QUESTIONS WERE 170.MATH-45? READING-40? ENGLISH-55

9. ## math

Express 5832 as a product of prime factors and hence,find the cube root of 5832 ?

10. ## Discrete Math - Geometric Vectors

Under what conditions will 3 vectors having magnitudes of 7, 24 and 25, respectively, have the zero vector as a resultant? I don't get this question at all.

11. ## Chemistry

HELP! I am struggling on this question. I think I may or may not have it. Why does Methane has a tetrahedral shape? The Valence-shell electon pair repulsion theory applies which predicts that the shape of a molecule by placing the electron pairs on a

12. ## Chemistry

Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes at -0.085 degrees C. how many grams of urea were dissolved to make this solution. delta T = Kf*molality Plug in 0.085 for delta T, I assume you know Kf for water, calculate molality. Then

13. ## chemistry

If the reaction is zero order, how long would it take for I2 disappear?

14. ## Chemisty

Aluminum hydroxide forms a positively charged sol. Which of the following ionic substances should be most effective in coagulating the sol? NaCl CaCl2 Fe2(SO4)3 K3PO4

15. ## Physics

A "dip needle" is a small magnet mounted on a horizontal axis so that it can swivel up or down. Where on Earth will a dip needle point most nearly verically? Where will it point most nearly horizontally?

16. ## Chemistry

Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes at -0.085 degrees C. how many grams of urea were dissolved to make this solution. delta T = Kf*molality Plug in 0.085 for delta T, I assume you know Kf for water, calculate molality. Then

17. ## music

Is concertos a genre of the Romantic period that influenced or had an effect on music today? I think it did but I cannot find an example.

18. ## math

2)For 2000 patients, a blood-clotting time was normally distributed with a mean of 8 seconds and a standard deviation of 3 seconds. What percent had blood-clotting times between 5 and 11 seconds? A)68% B)34% C)49/5% D)47/5% I chose A 4)A music teacher

19. ## financial accounting

the long-term note payable bears an interest of 12% per year. the unadjusted interest expense account equals the amount paid for the first 11 months of the 2008 fiscal year.(3,300). The 300 accrued interest for april has not yet been paid or recorded.Note:

20. ## Quadratic -Make up a problem

I am supposed to write a quadratic equation in the varible x having the given numbers as solutions. Type the equation in standard ax^2+bx+c=0 my solution is 1, only one solution. The equation is __________=0?

21. ## chemistry

Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. H-O-H and C-O-H bond angles are all equal to 109.5. B. Dispersion forces affect all three molecules. C. Two lone pairs of electrons are assigned to the oxygen

22. ## algebra

mrs.Goh bought 4 bags of rice at \$5.28 per bag ,5 packets of biscuits at \$1.25 per packet and 2.8 kg of meat at \$7.40 kg per kg.Assuming that GST was absorbed by the retailer,calculate the total amount she spent ? What would be change if she paid for all

23. ## PRE ALGEBRA

THE AVERAGE WEIGHT W (IN POUNDS) OF AN ATLANTIC COD AGED t YEARS CAN BE MODELED BY THE EGUATION W=1.16(1.44)^t. FIND THE RATIO OF THE WEIGHT OF A 5 YEAR OLD COD TO THE WEIGHT OF A 2 YEAR OLD COD. EXPRESS THIS RATIO AS A POWER OF 1.44!!!!!! HOW WOULD I DO

24. ## French

Hi yall. I have been trying to write this paragraph on Christmas and I was just wondering if someone could read it and see if im totally off the mark....thanx yall La saison de Noël est mon temps favori de l'année. C’est une fête religieuse et il y a

25. ## physics

An air filled parallel plate capacitor has plates of area 0.0406 m^2 and seperation of 2.5*10^-6 m. a)What is the capacitence for the setup? b)Our capacitor is connected to a 550 v battery, how much energy is stored in the capacitor? c) If -1 mJ of work is

26. ## Math

A piece of rectangular metal has 8 holes punched in it that lie in a straight line.If there are 1 1/16 inches between the centers of two consecutive holes find the distance from the center of the first hole to the center of the last hole. _______ inches

27. ## physics

The world record for the discus throw is 74.08m , set by Jürgen Schult in 1986.If he had been competing, not on earth, but on Mars, where the acceleration due to gravity is 0.379 what it is on earth, and if he had thrown the discus in exactly the same way

28. ## Physics

What is the magnetic effect of placing two wires with equal but oppositely directed currents close together or twisted about each other?

29. ## Math

If the rise of a roof is 8 feet and the run is 2 feet 8 inches, what is the pitch of the roof in lowest terms when written as a FRACTION? 8 feet = 96 inches 2 feet 8 inches = 24+8= 32 so is it 32/96 which equals 1/3

30. ## science

Give example of constructive and destructive interference sound waves?

31. ## spanish

le duele la cabeza - my head hurts or is it I hace a headache me siento cansado - I am tired???

A Cesium 137 sample has a measured radioactivity of 50 microcuries.Cesium 137 has a half-life of 30 years. How long will it take this sample to be reduced to a residual radioactivity of 6.25 microcuries? Is there a formula to calculate half life?

33. ## science

Describe how sound is caused by vibration?

34. ## Science - Proof of Propositional Logics

I am being asked if I can prove P, L, Q? (without using resolution-refutation). Propositional clauses: 1. P -> V 2. !P -> (!V and F) 3. (V or F) -> Q 4. Q -> L From here I was able, with resolution-refutation, to determine that we cannot prove P but we

35. ## history

How did U.S. “Manifest Destiny” impact Latin America?

36. ## French

What's "are you there yet?", "having fun?" and "check our inbox when you get back" in French? Thanks!

37. ## math

Age 0-14 number of people= 206,423 Age 15-34 number of people= 265,778 Age 35-54 number of people= 308,946 Age 55-74 number of people= 159,092 Age over 74 number of people= 69,264 1)Classify the data in the table. A)positively skewed B)negatively skewed

38. ## Chemistry

I think I have identified these right but I am confused on the why part of my question. Am I on the right track or should I read some more? Are these organic? If they are why? KMnO4-no CH3Oh-yes C6H6-yes PdCI2-no Ch3CO2H-yes Because they are carbon

39. ## Math

A board 7 3/8 inches is cut to 3/4 of its size. What is the size ? _______ inches

40. ## world history

Re: Industrial Revolution Apart from external problems including urban crowding, insanitation, pollution, and social and order problems, what may have also been (2) problems created by industrialization/urbanization during this time?

41. ## economics

what is a country's excess quantity of demand to a nation's? exports or imports

42. ## spanish

te sientes bien - are you good???? nos sentimos bien - are we good?? te sientes cansado - are you sad?? se siente cansados - are they sad?? for the test we need to be able to translate these

43. ## Statistics

Age 0-14 number of people= 206,423 Age 15-34 number of people= 265,778 Age 35-54 number of people= 308,946 Age 55-74 number of people= 159,092 Age over 74 number of people= 69,264 1)Classify the data in the table. A)positively skewed B)negatively skewed

44. ## math

Prisilla performs a series of transformations on a figure in the plane. First she dilates it by a factor of 3 and translates it 5 units to the right. Next she reflects it over the x axis, then over the y axis. Finally she reflects it over the line y=x,

45. ## to srajmcgin

j'ai réfléchi pour "extended family", d'après votre définition, on pourra utiliser le terme de "famille recomposée" je ne pense pas que vous le connaissez car c'est récemment utilisé en france,mais c'est une définitin qui me semble convenir

46. ## Government

Today unions (A) have generally experienced a tremendous increase in membership (B) have not succeeded in organizing any white-collar workers (C) are divided into two large organizations, the A.F.L. and the C.I.O. (D) have generally experienced a decline

47. ## math

Could someone double check my answers. 1. Write the number in expanded form 684 answer: (6x100)+(8x10)+(4x1) 2.Give the place value for the indicated digit 8 in the number 138,350 answer: thousands 3. Write the following in the standard form of a number

48. ## spnaish sra McGuin

what is the difference in translation saying someone is feliz contendo ( a) both say happy???

49. ## spanish

estar refriado it is cold or it will be cold the teacher will have these exactly as above and we must translate

50. ## dr bob

I am doing my homework for a spanish test and each time I post a question someone writes somehting disgusting - I am not going to be allowed to use this site anymore - can we ask him to stop

51. ## Economics

In running a regression model with three variables, two of the three come back as statistically significant at the 95% level of confidence. The one that doesn't is the intercept - so is my model still valid?

52. ## science

Hare are Vaccines important in preventing viral diseases?

53. ## spnaish Sra Mcguin

i just got a new lap top and I am setting up my im and stuff this afternoon - hope your hand is feeling better

54. ## French

Hi yall. I have been trying to write this paragraph on Christmas and I was just wondering if someone could read it and see if im totally off the mark....thanx yall La saison de Noël est mon temps favori de l'année. C’est une fête religieuse et il y a

55. ## math

The perimeter of the polygon below is 9x-1. Find the expression for the missing side length. There are 5 expressions: 3x-4, x-5, x+1, 2x+3, and ?. I got ?=2x-6. I added all the equation and minus it from 9x-1.

56. ## math

Prisilla performs a series of transformations on a figure in the plane. First she dilates it by a factor of 3 and translates it 5 units to the right. Next she reflects it over the x axis, then over the y axis. Finally she reflects it over the line y=x,

In reading we have to draw a picture about how dog sleds are loaded. We just finished reading The Call of the Wild by Jack London so this is one of our many assignments and I can't find anything about this on th internet. Thanks so much for any help!

58. ## science

Explain how amplitude and frequency are related to the energy of wave?

59. ## Physics

A magnet can exert a force on a moving charged particle, but it cannot change the particle's kinetic energy. Why not?

60. ## spanish

I have a test on conjugation and I am trying to make sure I have done this right me duelen los pies - my feet hurt Te duele la garganta? - does your throat hurt te duelen las piernas - le duele la cabeza -

61. ## Speed and distance

I can't figure this one out During a trip, a canoe travles 47 miles at r speed. The second part of the trip the canoe travels 9 miles, but 5 mph slower. The total trip is 5 hrs. What is the speed of each part of the trip? I start with 47/r+9/r-5=5hrs Then

62. ## spanish sra mcguin

estar refriado it is cold or it will be cold the teacher will have these exactly as above and we must translate

63. ## French

Hey again, i've made the corrects you suggested...and i was hoping you could proof read just to make sure i did them correctly...Thankz Noël La saison de Noël est l'époque de l'année que je préfère. C’est une fête religieuse et il y a toujours

64. ## calculus

how would you do this improper integral 1/(x-1) from 0 to 2 this is improper at one, so I split it up into two integrals ln(x-1) from 0-1 and ln(x-1) from 1-2 I then did for the first one the (lim t->1(-) of ln(t-1))-(ln(0-1)) and then the same thing for

65. ## Math

I need help please A computer can execute 64 instructions per second. How many instructions can it execute in 10 minutes? Multiply 3 1/6 x 9/11 x 6/17. Write the answer in simplest form Divide 6/25 / 2/15. Write the result in simplest form.

66. ## SCIENCE

HOW DOES THERMAL UNDERWEAR HELP PREVENT LOSS OF BODY HEAT?

67. ## Macro econ

Use the Keynesian model for this problem. Assume the following model of the economy, where c, t, and nx are positive constants: Y=C+Ip+G+NX C= 200 0 + c(Y-T) T= 400 + tY Ip = 1500 G = 2000 NX = 1000 - nxY where c=.75, t=.2, nx = .10 a) What is the

68. ## Chemistry

Formula of 1,3-butadiene The answer I came up with is CH2=CH-CH=CH2 Am I close?

69. ## science

Explain how amplitude and loudness are related?

70. ## science

What part of science is genomics part of? and what should i list it as under in my science fair project

71. ## science

what is a data table

72. ## SOSE

I got a big research contract at school and need to locate an original copy of the Advance Australia Fair by Peter Dodds McCormick. Can you please help?

73. ## science

why does wearing loose clothing on a cold day provide good insulation

74. ## Pre Algebra

HOW WOULD I GO ABOUT THIS QUESTION? JUNGER SAYS THAT EVEN A 10 KNOT INCREASE IN WIND SPEED CAN BE VERY DANGEROUS FOR A SHIP. PICK TWO WIND SPEEDS THAT DIFFER BY 10 KNOTS, AND COMPARE THE RESULTING WAVE ENERGIES. HOW WOULD I GO ABOUT THIS QUESTION??

75. ## Living Env.

I know what it is but,what is the formal definition of the Digestive System?

76. ## spanish

se siete bien ( question ) are you good se siete bien statement you are good is this correct

77. ## MATh

What is the square route of x Times 3 ifx is equal to 5 cubed? Then triple the answer

78. ## English 4

what are the steps in writing a good essay?

79. ## Math

If a car averages about 22 1/2 miles per gallon , and the capacity of the tank is 16 1/4 gallons, how many miles would be expected on a tank of gas?

80. ## science

Explain how sound is transmitted through a medium?

81. ## contemporary issues in criminal justice

can anyone help me with this question? what are common privacy rights held by U.S. citizens?

Marketers have observed that consumers are involved in more camping, hiking, boating, fishing, and other outdoor activities because of their __________. A. love of nature B. awareness of nature C. need of exercise D. lack of money E. none of the above I

83. ## spanish

se sieten cansadas - could it also be are they tired instead of do they feel tired I am setting up my im today

84. ## Chemistry

what are three chraracteristics of metalloids and 2 characteristics of noble gases

85. ## Math

If the rise of a roof is 8 feet and the run is 2 feet 8 inches, what is the pitch of the roof in lowest terms when written as a FRACTION?

86. ## Math

Write an equivalent FRACTION to 3/7 which has a numerator of 114.

87. ## math

There are four angles, a,b,c,d. The measure of angle a is (3x+10) degrees. The measure of angle d is (x+10).What is the value of x? I made an equation 3x+10=x+10. I think the value is 0.

88. ## Math

Mike is told to take 3 1/2 tablets of his 750 mg (milligram) per tablet medication on a daily basis. How many milligrams will he be taking? _______ mg

89. ## philosophy

What is the meaning of life?

90. ## calc

how would you do this improper integral 1/(x-1) from 0 to 2 this is improper at one, so I split it up into two integrals ln(x-1) from 0-1 and ln(x-1) from 1-2 I then did for the first one the (lim t->1(-) of ln(t-1))-(ln(0-1)) and then the same thing for

91. ## math

2 5/7 divided -38/21 = ?

92. ## human resources

Degrussa: Strategy and Human Resources in China

93. ## sra mcguin

se siente bien - are you good me siento cansado - I am tired la cancha de futbol - la pista de correr

94. ## spanish

if i have to translate la pisa de correr do i write running track or track

95. ## spanish

i am confused is it you are good or are you good

96. ## Poetry

I am learning about poetry (meter, verse, and foot). I need a website with audio that can allow me to hear the pronunciations of the syllables if stressed or unstressed. Please help me thank you.

97. ## Gurublue( poetry)

Guru Blue, These are two wonderful websites, thank you. However, I need a website that has audio to show me the stressed and unstressed words.

98. ## english

What main words can I use in a persuasive arguement

99. ## nursing 112

if you have a ph 7.15, PCO2 22, HCO3 14 then is it compensated or uncompensated

100. ## world history

What was the history of France in the 1600's?

101. ## spnaish Sra Mcguin

i just got a new lap top and I am setting up my im and stuff this afternoon - hope your hand is feeling better