# Questions Asked onJanuary 30, 2008

1. ## science

In a mixture of hydrogen and oxygen gases at the same temperature, which molecules move faster? Why?

2. ## math

Express 39% as a decimal.

3. ## Physics

Two charges (+4C and -3C)are separated by .00002m. What is the electrostatic force and its direction? Using Coulomb's law, I arrived at 2.696 x 10^20 J. Would the direction be said to be "towards the positive charge"? Is this correct? Thanks

4. ## grammar..subjects and predicates

Subjects and Predicates: Copy each sentence. Draw a line between the complete subject and the complete predicate. Underline the simple subject once and underline the simple predicate twice. 1. Edgar Allan Poe lived a double life in many ways. CS:Edgar

5. ## statistics

How do I sketch distributions? I think I'm doing it wrong. Is there an option my friends stats-calc(her calcultor is very tempremental, so i don't know if it'll work) I can utiilzie that'll sketch things for me? thanks. -Sketch a normal distribution with

6. ## Hum

What is the nature of god for Hinduism?

7. ## Chemistry

Write the equilibrium expression, and calculate Kp for the reaction under the conditions described: 2NaHCO3 (s) -->

8. ## math

One number is 12 more than another. The sum of the smaller number and twice the larger number is 39. Find the larger number.

9. ## TO ALL STUDENTS

Please do not post personal information anywhere on the Internet -- not your name, your email address, where you live, where you go to school, or anything. It's just not a smart or safe thing to do online. Be safe out there. =)

10. ## Physics

A paralle plate air capacitor has a capacitance of 500.0 pF and a charge of magnitude 0.200 uC on each plate. The plates are 0.6 mm apart. (a) What is the potenetial difference between the plates? (b) What is the area of each plate? (c) What is the

11. ## trigonometry

The formula log(w) = -2.866 + 2.722log(h) estimates the "average" weight w in pounds of a girl h inches tall. To the nearest tenth of a pound, estimate the "average" weight of a girl who is 47 inches tall.

12. ## statistics

sample- a recent study reports that older adults who got regular physical exercise experienced fewer symptoms of depression, even when tested 2 years late. regular excersize scores= 1,3,4,3,5,2,3,4 no regular excersize scores=5,4,6,3,5,7,6,6 a)calculate

13. ## social studies

describe the effects of this convergence on the level of connectivity between places?

14. ## spelling

I need the answer to this analogy broom : sweep :: brush : the word has to begin with scr, spr, str or thr

15. ## accounting

Andy Wright, D.D.S., opened a dental practice on January 1, 2008. During the first month of operations the following transactions occurred. Performed services for patients who had dental plan insurance. At January 31, \$875 of such services was earned but

16. ## Economics

How does increasing or decreasing the quantity of capital goods produced this period affect next period's production possibilities curve and why? The only thing I can think of is that if more products are produced this period, less can be produced next

17. ## english

I can't put this sentence together and have it sound right. Any suggestions? Women have contributed much to American culture of great value. or Women have contributed much of great value to American culture. HELP!

18. ## physics

An electron and a proton are initially very far apart (effectively an infinite distance apart). They are then brought together to form a hydrogen atom, in which the electron orbits the proton at an average distance of 5.11 10-11m. What is EPEfinal -

19. ## physics

A car battery has a rating of 200 ampere·hours (A·h). This rating is one indication of the total charge that the battery can provide to a circuit before failing. What is the total charge (in coulombs) that this battery can provide? Determine the maximum

20. ## CHEMISTRY

if insulin has 6 cysteines, how many millimoles of IAA would be consumed in a blocking reaction containing 10 mmol of reduced insulin? mass of cysteine - 121 g/mol.

21. ## physics

Suppose that you are able to decompose water into hydrogen gas and oxygen ga and that ou can capture all of these gases that are produced. knowing that the mass of an oxygen atom is 8 times that of a hydrogen atom, describe how you could determine which of

22. ## French

Can anyone explain la concordance des temps when your first verbs are passe compose, imparfait and plus-que-parfait?

23. ## Chemistry

Write the equilibrium expression, and calculate Kp for the reaction under the conditions described: 2NaHCO3 (s) -->

24. ## Economics

How does increasing or decreasing the quantity of capital goods produced this period affect next period's production possibilities curve and why? The only thing I can think of is that if more products are produced this period, less can be produced next

25. ## AP US History

Between New Nationlism and New Freedom which is the most realistic response to industrialization? Why?

26. ## factoring

Question: 30x^3 + 18x^2 - 5x - 3 My Answer: 6x^2(5x+3)(-5x-3) Is that right. If not can you please correct my answer and tell me what to do! Thanks :)

27. ## Genetics

Hi can anyone help me answer these questions? I think I may have the right answer but not too sure, just want to make sure. And also could you please show how to draw these as I'm not sure my drawing is not done correctly. Thankyou! Using the forked-line

28. ## Black History

Who was linda brown? and what happened during her case called Brown vs. board of education

29. ## factor

can someone please explain to me how to factor by grouping!

30. ## Physics

(a) If you use two quarters 2.00 mm apart to make a parallel plate capacitor, what is its capacitance? Measure the necessary quantities. (b) If you connect your capacitor in part (a) across 12 V potential difference, how much excess charge will flow onto

31. ## Chemistry

how do Al and Cl ionically bond with each other? I think its AlCl3 am i right?

ax+x

33. ## French

When using verbes de perception ou de sensation like regarder, ecouter, etc. How do we conjugate them? I know that the other verb should be in l'infinitif. Do we just write it (regarder etc) in present?

34. ## chemistry

I am enrolled in analytical chemistry after a 4 year break from any chemistry. I was recently given a problem set and I need some help on the following: A 0.899g sample containing epsom salt, MgSO4 & 7 H2O, and other non-hydrated materials was dehydrated

35. ## Physics

Find the instantaneous velocity of a mass on a spring oscillating on a horizontal frictionless surface at the instant when its displacement is half of its maximum displacement x=(x_max/2). Assume the max velocity of that mass during each oscillation is

36. ## algebra 1

graph the system of linear inequalities x+y-2 please solve asap

38. ## CHEMISTRY

I'm in the same class as Catie, and we're working on the same lab; however, i chose a different approach. here's what i have below, your help is much appreciated. so i have X= g AgNO3 0.953-x = Ba(NO3)2 therefore .953-X-NO3=? so far I caluclated the % of

39. ## math

I always thought I understood significant figures...until I attempted to tutor someone. Some of the rules seem counterintuitive. For instance... 10.070 why is it 5 sig fig's? the "0" on the right is useless. without it the # holds the same value. 20 Why is

40. ## Physics

A mass m=.5kg on a spring with a spring constant. It is displaced by the distance x_max =20cm (.2m) from equilibrium on a frictionless horizontal surface. At the time t=0s the mass is released and it begins to oscillate. Assume that T=3.14s. Find the

41. ## CALC

I was given a decreasing concave down graph of the integral F(x) from 0-8. i have to say whether the following are greater then, less then,equal to, or unable to determine each other 1. T (greater then) M 2. T (greater then) R 3. M (less then) S 4. S ?

42. ## physics

What is the purpose of a layer or copper or aluminum on the bottom of stainless steel cookware? All objects continuously emit radiant energy. Why then doesn't the temperature of all objects continuously decrease? All objects continuously absorb energy from

43. ## Physic

What determines whether an object is a net emitter or a net absorber of radiant energy? Wood is a better insulator than glass. Yet fiberglass is commonly used as an insulator in wooden buildings. Explain.

44. ## science

What charge exists on a test charge that experiences a force of 2.2 10-8 N at a point where the electric field intensity is 1.0 10-4 N/C? what formula do i use??

45. ## scientist

how do suttan's observations about chromosome number support the chromosome theory of inheritance?

46. ## Database Management

your projects should contain the following: 1. write a prosa text for a domain of your own (maximum 1 A4 sheet of paper) 2. model this text in form of an EER diagram or UML class diagram 3. create a SQL script for building all tables and constraints to

47. ## Biochem

Assuming that the value of the equilibrium constant for the aldolase reaction Keq=6.43*10^-5 at pH=7 a.) What will be the equilibrium concentration of dihydroxyacetone phosphate (DHAP) if 1 mM of fructose-1,6-biphosphate is added to a buffered solution

48. ## science

The electric field in the atmosphere is about 140 N/C, downward. (b) Find the electric force on a proton with charge +1.6 10-19 C. formula please??

49. ## physics

When a hot object is placed in contact with a cooler object, the hot object warms the cooler one. Can you say it loses as much temperature as the cooler one gains? Defend your answer.

50. ## calculus

if dy/dx= (1+lnx)y and if y=1 when x=1, then y=

51. ## algebra

What is the common denominator? 3 2 - + - 1 a-1 ------- 4 3 - - - 1 a+1

52. ## english

Do I capitalize French fries as in ...I served french fires on china plates to the ladies.

HI,I JUST WAN6TED TO KNOW.WHAT ARE ALL OF THE CONTINENTS IN THE WORLD.

54. ## physics

You can comfortably hold your fingers close beside a candle flame, but not very close above the flame. Why? In a still room, smoke from a candle will sometimes rise only so far, not reaching the ceiling. Explain why.

55. ## Science

How does heat affect the three states of matter ?

56. ## english

Would I write... While driving east, the forest became denser. or As I drove east, the forest became denser. Also, do I capitalize East?

57. ## math

evaluate the following expression if x = –4.28, and y = –4.68. Round your answer to the nearest tenth.x – 5y

58. ## science

Turn an incandescent lamp on and off quickly while you are standing near it. You feel its thermal energy but find when you touch the bulb that it is not hot. why you felt thermal energy from it.

59. ## Graphs

The Frivoli can produce either 30 pounds of spaghetti and no meatballs or 50 pounds of meatballs and no spaghetti or any combination in between. The Frivoli can produce 40 pounds of spaghetti and no meatballs or 30 pounds of meatballs and no spaghetti.

60. ## Analogy/Spelling

Analogy: Glue:sticks as Thorns: 7 words that start with scr, spr, str, thr

61. ## math

A rectangle has sides of 4x – 4 and 8x + 10. Find the expression that represents its perimeter

62. ## science

The thermal energy of volcanoes and natural hot springs comes from trace amounts of radioactive minerals in common rock in the Earth's interior. Why isn't the same kind of rock at the Earth's surface warm to the touch?

63. ## hum

what are some practices of Hinduism?

64. ## math

can someone check my work? divid t^11/ t^3 is the answer t^3r2

65. ## Spelling/Analogy

Analogy: brother is to mother AS fly is to _____________ 4 letter word that starts with either scr, spr, str, or thr. I think it is spry? Do you think correct?

66. ## music

Can you please post all the music theory intervals? It is for Rudiments 1 and 2 please. Like perfect 5th and augmented 6th. Thanks

67. ## science

Why does the temperature of boiling water remain the same as long as the heating and boiling continue?

68. ## English

What is the difference between a noun and a verb isn`t it the same?

69. ## science

compare and contrast bauxite aluinium

70. ## math

if i had to divide the numerater and denominator then multiply 18 over 35 times 14 over 45 how would you do it ?

71. ## physics

A car battery has a rating of 200 ampere·hours (A·h). This rating is one indication of the total charge that the battery can provide to a circuit before failing.

72. ## math

i this the right answer to this problem 1+(-7)+6+(-10)= 8+6+(-10)= 14+(-10)= =24 Answer 24

73. ## math

Find two consecutive integers such that the sum of 3 times the first integer and 7 times second integer is 97.

74. ## math

An 800 g solution of acid and water contains 128 g of acid. What percent of the solution is acid?

75. ## math

A electronics store wants to order at least 3 times as many DVD players as VHS players. Write an inequality expressing this relationship.

76. ## Math

I need help with making a formula..? This is what I put.. "The 100th Triangular Number is 5,050. I found this by adding 100 to the value of the 99th Triangular Number. The 99th Triangular Number is 4,950. The formula I used to find it is..." Help?

77. ## ap english

how does the pythagorean theorem reflect modern math apperciation or show how does this reflect greek classical ideas

78. ## thermochem

WHen talking about phase transitions, in a graph of Temperature vs. Heat Capacity, does the PT occur at when the graph has a gradient of 0 or somewhere else?

79. ## english

Prometheus was a romantic or gothic story?

80. ## physics

A toaster uses a Nichrome heating wire. When the toaster is turned on at 20°C, the initial current is 1.50 A. A few seconds later, the toaster warms up and the current has a value of 1.22 A. The average temperature coefficient of resistivity for Nichrome

81. ## french

C'est or Il est?? ____est japonais. ____est etudiante. ____est un personne calme et sociable. I don't know when to use which...can anybody explain? thanks. Similar question...a or est? Elle ____ un ami sympathique.

Write the adjectives and adverbs in the following sentences. Indicate whether each is an adjective or an adverb, and identify the word or words it modifies. You do not need to include articles. 1. If you seriously plan to climb Mt. Everest, you should hire

83. ## lesson planning

how to make a good lesson plan for elementary students??? can you give me some sites???

84. ## Math

Northern Maywood voted 60% to 40% in favor of a water project. Southern Maywood voted 90% to 10% against the prject. The project passed 55% to 45%. If 5900 people voted, how many were from Southern Maywood.

85. ## LI

Can some please show me sample essays from previous test and how they analyzed it.

86. ## Economics

Member since: December 21, 2006 Total points: 154 (Level 1) * Best answer 75% * 4 answers Member Since: December 21, 2006 Total Points: 154 (Level 1) Points earned this week: -3 Your Open Question Show me another » Project Help!!!? Hi, I am doing a

87. ## math

Find the slope and y-intercept. x=-9

88. ## English IIII

I need to obtain litary criticisms for William's "A Streetcar Named Desire"

89. ## math

A line passing through (–6, –5) and (–1, y) is perpendicular to a line with slope -5/13 . Find the value of y

90. ## CALC

Let f(x) be the function e^sin(x/10). If you wanted to estimate the area under the curve for this function from 3 to 5, how many intervals would you need to use to be sure that your upper and lower bounds differered by no more than .01?

91. ## religions of the world

how modern civilization has impacted the spiritual lives of the indigenous people. are indigenous religions still practiced today

Suppose you are trying to evaluate the intergral 2x^3dx and you make the substitution u=x^2. The substitution takes one area and converts it to a different one-in this case a trapezoid with vertical sides. Denote by R the region under the first curve from

93. ## COM 135

three forms of technical writing used in the corporate environment.Then I need to explain why each form of communication is important.

94. ## Chemistry

Why must one add water first and then add the acid rather than add the acid first and then water?

95. ## Com 135

How can diversity be an asset to the curriculum of the classroom?

96. ## literature

when are the follwing lines spoken?

97. ## physics

The average power dissipated in a stereo speaker is 54 W. Assuming that the speaker can be treated as a 4.0- resistance, find the peak value of the ac voltage applied to the speaker.

98. ## Chemistry

calculate the final concentration if 4.0 L of 1.5 M NaCl and 2.0 L of 3.0M NaCl are mixed. I am confused about how to calculate the final concentration. We are currently working on solutions. I think first I need to divide the amount of the solution by the

99. ## AED 200

I need hrlp finding this info. and the state I am in is Florida. certification/licensure requirements for the state you would like to teach in.

100. ## English

What are some images Robert Browning is trying to make us see in "A Woman's Lat Word" and "Rabbi Ben Ezra"? Is there a site where I can read an analysis of these two poems?

101. ## Math

If u do ur math hmwk 90% of the 180 days of schoool, how many days do you do ur math hmwk?

102. ## mathematics

Mri.Williams bought a plot of land for \$4o,oo. The value of the land was appreciated by 7% each year. Calculate the value of the land after a period of two years.

103. ## Math

I need to make a formula showing that I added 100 to the 99th Triangular Number.. Anyone know how I can do that?

104. ## Grammar

“Well,” Alex smiled into the phone. “I just realized that it was near three and that I wouldn’t get enough sleep and might forget to call you." Because 'Alex smiled into the phone' is description instead of attribution, should there be a period

105. ## math

Rename percent as fractions and fractions as percents. 1/10 40% 66 2/3% 8/4 125% 2/25

106. ## English

linking, transitive, and intransitives verbs? would the sentence "the old woman's house smelled like a ginat litter box." be linking