Questions Asked on
January 3, 2010

  1. science

    Why might a plastic rod that contains a large number of electrons not have a static charge?

    asked by rebecca
  2. Chemistry

    A balloon originally has a volume of 4.39L at 44 C and a pressure of 729 torr. What temperature must the balloon be cooled to to reduce its volume to 3.78L at the same pressure? (A) 38 C (B) 72.9 C (C) 0 C (D) 546 C (E) 273 C Is the correct answer (E) 273

    asked by Anonymous
  3. Chemistry

    A sample of H2 gas (12.28 g) occupies 100.0 L at 400.0 K and 2.00 atm. How much volume will a 9.49 g sample of H2 occupy at 353 K and 2.00 atm? a. 68.2 L b. 54.7 L c. 147 L d. 109 L e.77.3 L Is it a. 68.2 L?

    asked by Anonymous
  4. grammar

    give the abstract noun for: a) worm: wormthness b) brilliant: brilliance c) accurate: accuracy d) hot: hotness e) merry: married f) stupid: stupidity g) late: lateness h) secure: security plz help to correct these answers thanks

    asked by Sehr
  5. Chemistry

    A sample of helium gas initially at 37.0 degrees C, 785 torr and 2.00 L was heated to 58.0 degrees C while the volume expanded to 3.24 L. What is the final pressure in atm? a)1.79 b)3.21 c)0.681 d).517 e)none of the above please explain--I need to know how

    asked by Coug
  6. Chemistry

    The number of Pb atoms per unit cell

    asked by Rony
  7. AP Statistics

    Of all U.S. fourth graders, 71% are assigned mathematics homework three or more times per week. If 5 fouth graders are randomly selected to be checked for this frequency of homework assignment during a randomly chosen week, find the probability that A.)

    asked by Laura
  8. Chemistry

    What is the molecular weight of a gas if a 15.0g sample has a pressure of 836 mm Hg at 25.0 degrees C in a 2.00 L flask? a)167 b)1.35 c)176 d)11.1 e)none of the above Please explain... I need to understand how to do this. Thanks.

    asked by Coug
  9. Physics

    A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of vi = 20 m/s. The cliff is h = 53 m above the water's surface, as shown below. (a) How long does it take for the stone to fall to the water? (b) With what speed

    asked by Trisha
  10. chemistry

    Which noble gas would be expected to show the largest deviations from ideal gas behaviors, He, Ne, Ar, Kr, or Xe? Would it be He? I'm not sure how one would determine this.

    asked by Anonymous
  11. Math

    Two parallel lines cut by a transversal can create all the following types of angles except A. Alternate interior angles B. Alternate exterior angles C. Corresponding angles D. Complementary angles

    asked by S
  12. Lesson 4 Poetry, Part 1

    1. Walt Whitman’s excerpt from Song of Myself can be considered an expression of A. populism. C. imagism. B. romanticism. my answer D. conventionalism. 2. Which one of the following poems has the rhyme scheme AA BB CC DD . . .? A. “since feeling is

    asked by ari
  13. Math

    Two triangles are similar. The measure of the shortest side of the first triangle is 12 and the measure of the shortest side of the second triangle is 5. If the longest side of the first triangle measures 15, what is the measure of the longest side of the

    asked by S
  14. Physics

    I found the first three parts of the question but I can't figure out part d. The instruments attached to a weather balloon in the figure below have a mass(m) of 5.5 kg. The balloon is released and exerts an upward force(F) of 109 N on the instruments. (a)

    asked by Sasha
  15. science

    whats the difference between a conductor and an insulator? b) what is an example of a conuctor and an insulator?

    asked by rebecca
  16. Chemistry

    The van der Waals equation for real gases recognizes that (A) the molecular atrractions between paritcles of a gas decreases the pressure exerted by the gas (B) the non-zero volumes of gas particles effectively decrease the amount of "empty space" between

    asked by Anonymous
  17. Trigonometry

    How do you know when to add k(2pi) or k(pi)? What's the difference? Also, for this problem, why are you supposed to use k(2pi/5) for the solutions, assuming that there is no domain? 2sin^2(5x)+sin(5x)-1=0 Thank you!

    asked by Anonymous
  18. Chemistry

    If 3.21 mol of a gas occupies 56.2L at 44C and a pressure of 793 torr, what volume will 5.29 mol of this gas occupy under the same conditions? (A) 61.7 L (B) 30.9 L (C) 14.7 L (D) 92.6 L (E) 478 L is it d, 92.6 L?

    asked by Anonymous
  19. BIO

    what is the relationship between snails and Elodea? My answer is that Elodea provides Oxygen for the snails. Is my answer correct? If not please help me.

    asked by Anonymous
  20. science

    Why might a plastic rod that contains a large number of electrons not have a static charge?

    asked by rebecca
  21. science

    Why might a plastic rod that contains a large number of electrons not have a static charge?

    asked by rebecca
  22. algebra

    Hockey teams receive 2 points when they win and 1 point when they tie. One season, a team won a championship with 53 points. They won 10 more games than they tied. How many wins and how many ties did the team have? How many wins did the team have?

    asked by Mike
  23. math

    Two parallel lines cut by a transversal can create all the following types of angles except

    asked by sabrina
  24. Physics

    Suppose a 68-kg boy and a 40-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s^2, find the magnitude of the acceleration of the boy toward the girl.

    asked by Sasha
  25. math

    How many integers values of x are there so that x, 5, and 8 could be the lengths of the sides of a triangle?

    asked by sabrina
  26. Math

    In ΔABC, m∠C = 118 and m∠B = 44. Which is the shortest side of the triangle A. AB B. BC C. AC

    asked by S
  27. Physics

    A shell is fired from the ground with an initial speed of 1.61 multiplied by 103 m/s at an initial angle of 39° to the horizontal. (a) Neglecting air resistance, find the shell's horizontal range. (b) Find the amount of time the shell is in motion. For

    asked by Michael
  28. math

    Two parallel lines cut by a transversal can create all the following types of angles except

    asked by sabrina
  29. Trigonometry

    How do you verify the equation is an identity? Tan^2x-tan^2y=sec^2x-sec^2y and, how do you factor and simplify, cscx(sin^2x+cos^2xtanx)/sinx+cosx

    asked by Jasmine
  30. chemistry

    A gas bubble with a volume of 1.0 mL originates at the bottom of a lake where the pressure is 3.00 atm. Calculate its volume when the bubble reaches the surface of the lake where the pressure is 695 torr , assuming that the temp doesn't change. I got 0.003

    asked by Anonymous
  31. Art

    I don't get this question on my textbook. "List at least three ways Velazquez used space to intrigue the viewer in Las Meninas." I'm not too sure on how I describe the space.

    asked by Anonymous
  32. Literature

    3. The Kellers allow Annie and Helen to live alone for two weeks because they a. believe that their interference creates too many obstacles b. trust Annie to care for Helen as they would c. fear that Helen will otherwise have to enter an institution d.

    asked by mysterychicken
  33. chemistry

    what is the initial temperature (in degrees C) of a system that has the pressure decreased by 10 times while the volume increased by 5 times with a final temperature of 150 K? a)27 b)75 c)300 d)-198 e) none of the above Please explain--I need to know how

    asked by Coug
  34. Stat

    Two percent of the circuit boards manufactured by a particular company are defective. If circuit boards are randomly selected for testing, the probability it takes 10 circuit boards to be inspected before a defective board is found is

    asked by Max
  35. statistics

    the average of final exam is 64, the standard deviation is 7. If the teacher set a rule that 1/4 of students !@#$%^&ceive the poor grades should stay after class. lower than what mark should the students stay in school? does anyone know how to solve this?

    asked by K.T


    asked by Sehr
  37. math

    Two parallel lines cut by a transversal can create all the following types of angles except

    asked by sabrina
  38. physics electricity

    An electric force moves a charge of +1.65 multiplied by 10-4 C from point A to point B and performs 6.40 multiplied by 10-3 J of work on the charge. (a) What is the difference (EPEA - EPEB) between the electric potential energies of the charge at the two

    asked by alex
  39. Physics

    What is the weight (in Newtons) of an object with a mass of 25 kg on the surface of the Earth?

    asked by Aly
  40. Trigonometry

    How do you factor and simplify, 1-sin^3x and sec^4x-2sec^2xtan^2x+tan^4x

    asked by Taylor
  41. microeconomics 3

    . As tradition has it, Santa Claus is coming on the 5th of December from Spain to the Netherlands to bring gifts to Dutch children. Help is needed to distribute the gifts for which the Santa Claus committee is hiring helpers, so-called Zwarte Pieten. There

    asked by James
  42. Trigonometry

    cot^2(3x)sin(2x)-sin(2x)=0 2sin^2(5x)+sin(5x)-1=0

    asked by Anonymous
  43. Math

    ok so i'm kinda sort of confused... I had this for a equation X^2 + 4X - 1 = 0 and then I was like zero??? zero... really zero... hmm... X^2 + 4X - 1 = dy ???????? That zero does represent when Y equals zero correct??? this allows us to solve for X

    asked by Kate
  44. physics

    An object of mass 5.00 kg is attached to a spring with a force constant of 300 N/m. It is oscillating on a horizontal frictionless surface with an amplitude of 2.00 m. A 8.00 kg object is dropped vertically on top of the 5.00 kg object as it passes through

    asked by Liz
  45. math

    Two parallel lines cut by a transversal can create all the following types of angles except

    asked by sabrina
  46. carpentry

    list types of abrassive material.

    asked by TOM
  47. English Grammar

    need help with the editing of this paragraph. Various people believe that the building of an Empire provides secure natural resources from taking over territories claimed by other countries. This Ultra-Nationalism can actually begin a war from attempts

    asked by Anonymous
  48. Chemistry

    What are the raw materials for polyethene and polystyrene?

    asked by Question
  49. algebra

    The perimeter of a rectangle is 92m. The length is 4m more than twice the width. Find the dimensions.

    asked by Mike
  50. Trig

    Are any of these three problems identities? 1. Cos^2x-sin^2x=1-2sin^2x 2. Sinxsecx=cosxcscx 3. Sec^4x-tan^4/sec^2x=1+sin^2x If so, how can you conclude that any of them are identities?

    asked by Melody
  51. English

    What cultures and relgion affected the ottoman empire during its expansion? did people from the ottoman empire convert and practiced religions and cultures from the areas they expanded to.

    asked by jake
  52. Ela

    can you proof read. Canadians are the second larger consumers of water in the world. The average Canadian uses 326 litre's of water a day for baths, showers, toilet flushing, drinking, laundry , and lawn watering. In France, the average is 150 litres a

    asked by anu
  53. math

    In ABC, mB > mC and mC > mA. Which side of ABC is longest?

    asked by sabrina
  54. Science

    In __, the amplitude of the carrier wave is changed to transmit information; the frequency is not changed. In __, the frequency of the carrier wave is changed __ phones and __ phones use radio waves to transmit signals. __ use electromagnetic signals from

    asked by Michael Jones
  55. Physics

    A forward force of 8X102 Newtons is applied to a 1.9x103 kg car. If the friction force on the car is 6x102 Newtons what is the acceleration of the car in units of m/s2?

    asked by Aly
  56. 5th grade

    8 1/4 - 4 5/6

    asked by dominique
  57. Math

    h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 2 5 5 3 0 8 2

    asked by Kate
  58. english

    i need help picking the right theme A)oppression B)discrimination C)obstacles D)injustice plz asap thankyou

    asked by sana
  59. chemistry grade 10

    i don't really get the idea of what a poly atimic ions is. i couldn't understand the meaning from my textbook. can u plz explain it to me. thanks alot!!!

    asked by shaje
  60. 10th grade

    I am writing an essay on things from the natural world and I need to think of categories for the things in order to write paragraphs. The sun, moon, sea, and sea shore are all things from the natural world. What one smaller category do they fit in?

    asked by Emily
  61. history

    Whats the success and failure of cuban revolution?

    asked by eri
  62. Bio 100

    Provide at least two ways the use of this biotechnology could benefit socity and two ways this biotechnology could be harmful. My topic is agricultural and environmental uses.

    asked by Rayna
  63. Chemistry

    How do you calculate the molar masses for Strontium Phosphate and Chromium(III)Nitride using significant figures correctly?

    asked by Katie
  64. Social Studies

    Compare and contrast Post-classical feudal systems in Japan and Western Europe, in terms of social classes, gender roles, and rules/laws.

    asked by Anon
  65. Literature

    The water pump is shown and mentioned frequently in The Miracle Worker. What does it represent? I know that this is Helen's favorite place, and it's where she finally learns the meaning of words but I can't get further than that...I have to write an

    asked by mysterychicken
  66. 10th grade

    find the slope of the line that passes through 3 1/2,2 and -1,1/2

    asked by hector
  67. Math

    In ABC, mB > mC and mC > mA. Which side of ABC is longest? A. AB B. AC C. BC

    asked by S
  68. art

    Also, i don't get this question. "In what two ways were Hieronymus Bosch's and Pieter Brugel's paintings meant to be viewed?"

    asked by Anonymous
  69. Business Decision-Making

    I am trying to figure this out for my business decision-making class, it is to be a power point presentation 3 pages; sounds simple but I am totally lost. The first slide is to explain how statistical Tools can be valuable to a business, slide 2 specific

    asked by Brenda
  70. English

    What is the usage error in the following sentence and what is the correct usage? -They formally lived in Detroit.

    asked by Kagome
  71. american history

    what was the results of the war of 1812?

    asked by amy
  72. Chemistry- Diffusion

    Will gases that have similar molar masses have similar rates of diffusion?

    asked by Anonymous
  73. history

    event in history that relates to the quote its never to late to be what you might have been

    asked by king
  74. English

    I am a preschool teacher who has been observed by the principle who was never been supportive anyway reacently I got her feedback and it was negative due to the fact that she wanted me to use differentiated instructions during and she just observed me

    asked by caro
  75. chemistry

    i have difficulties in this question.any help would be appreciated. 1) 2No(g)-> N2(g)+O2(g) at 1800K,K is 8.36*10^3.what concentration of NO(g) is in equilibrium with N2(g) at a concentration of 0.0500mol/liter and O2(g) at a concentration of 0.500

    asked by hrithik
  76. ELA

    can you proof read When we turn on the top,we expect an abundant supply of clean, fresh water to flow out. Having one of the world's largest supplies of fresh water, these expectations may usually be met in Canada . However,in many other countries, water

    asked by anu
  77. arts and culure

    I need a clearer writing image of what this means and I know it sounds crazy...but, I am butting my head around this, and need to get started with my assignment?..."the social role of the arts in early Chinese and Japanese civilizations." How does one

    asked by maryk
  78. Ela

    can you proof read please The first time most Canadians really started to think about the safety of its water supply was in 2000, when seven people in walkerton ,Ontario , died from drinking tainted tap water. Thousands more was taken ill. All of a sudden,

    asked by anu
  79. psychology

    why is scientific method is very important to psychology

    asked by lucila
  80. English

    Hello everyone! I study English and my task is to find 3 activities( On anything, they don't have to be connected)which i can use in the classroom with my learners (5-8th graders).The point is that these activities have to be creative (f.e.they have to

    asked by sweru
  81. Physics

    A single 11 Newton force is applied to an object of mass 19 kg. What is the acceleration of this object in m/s2

    asked by Aly
  82. Math

    I haven't done factoring in ages I'm trying to factor this X^2 - 2X + 8 If i remeber correctly sense the leading coefficent is 1 the factored form is in this format (X-A)(X-B) which would give you X^2 -AX - Bx + AB or simply X^2 -(A+B)X +AB so then in my

    asked by Kate
  83. history

    what is the meaning of this quote you reap what you sow and how can i make a history event out of it thanks

    asked by king
  84. geology

    Is there any way I can send you my final to look at and see if I am on the right track? I asked my instrutor to look at it, but her reply was she didn't want to see it until it was due. Any help would be greatly appreciated. Thank you.

    asked by roxanne
  85. English

    What are some ultranationalistic empires that lost their culture and religon through their coverting

    asked by jake

    PLEASE CORRECT THE ANSWERS ACCORDING TO THE QUESTION BELOW. insert the prepositions in the following sentences : 1) he was christened Stephen UNDER his father,buthe answer IN the name of George. 2)He has not been heard since for years no one knows what has

    asked by Sehr
  87. English

    Can you check the following sentences,please? 1) The sight of nature breaks (OR breaks in upon) the poet's mood (OR state) of loneliness which characterized the beginning of the poem 2)Nature is presented as a living presence (OR being), according to a

    asked by Franco
  88. earth

    limestone and marble are both used in sculpting. Limestone become marble under heat and pressure. Classify each rock and tell which would be harder to sculpt

    asked by Dominic
  89. English

    1) The albatross as well as the spirits, the angels and the sea monsters are other supernatural elements (Is it correct or is it better to say "Other supernatural elements include...)? 2) The poet makes order (is it correct??) in a world which was

    asked by Franco
  90. Algebra 2

    "The Discriminant; Equations in Quadratic Form" Solve over the complex numbers. 1/e + 1/(square root of e) - 6 = 0

    asked by Mary
  91. trig

    how do i find cosX if i am given sin x= -4/5 and tan

    asked by anna
  92. disease

    HELP What are the top ten plagues in history?

    asked by Jackie
  93. Trig

    Are any of these three problems identities? 1. Cos^2x-sin^2x=1-2sin^2x 2. Sinxsecx=cosxcscx 3. Sec^4x-tan^4/sec^2x=1+sin^2x If so, how can you conclude that any of them are identities?

    asked by Melody
  94. science grade 10 chemistry

    do you know any website that helps explain how the naming of ionic compounds and etc work, and like naming acids. please help.

    asked by shaje
  95. algebra

    2x+1/x+1 (is less than or equal to) 2 what is the solution of the inequality?

    asked by nyet
  96. algebra

    (x^2)-3x=28 x=?

    asked by nyet

    PLEASE CORRECT THE ANSWERS ACCORDING TO THE QUESTION BELOW. WRITE OUT THE FOLLOWING SENTENCES USING THE CORRECT WORD FROM THOSE IN THE BRACKET. 1)[THEY,THEIR] Their parents(has,have) have been to indonasia. 2) we shall be [go,going] going home [by,bye] by

    asked by Sehr
  98. English

    1)The ship reminds of two well-known medieval themes: the Ship of the Fool and the Ship of Death (Is remind correct or is it better to use is derived from??) 2)During the ballad (better in the/within the ballad??) are also present (and not presented) such

    asked by Franco
  99. Physics

    Three forces are applied to a mass. Force 1: +3 Newtons Force 2: -3 Newtons Force 3: +2 Newtons What is the net force in Newtons on the mass?

    asked by Aly
  100. social studies

    i don't know where king charles the first gave the puritans a charter to setle in

    asked by meghan
  101. carpentry

    What is abrassive.

    asked by TOM
  102. English

    1) The wedding guest hadn't chosen to hear the mariner's tale 2) The storm changes the course of the ship (it it correct to use "course") and is represented as a huge bird (is as correct?) 3) The flowers help (better enable??) the poet to think about his

    asked by Franco
  103. English

    Which word would be correct in the following sentences and why would it be correct? 1. We were very nervous on Friday (because or on account of) we said that we'd present our report to the class then. 2. (As or Like) I always say, your are what you don't

    asked by John
  104. anglo-saxon,beowulf

    creat a narrative poem in the Anglo- Saxon style of Beowulf, can someone please help me

    asked by amanda
  105. carpentry

    Explain the number behind the abrasive sheets

    asked by TOM
  106. AIU

    Part 1: Using the Library, web resources, and/or other materials, find a record-breaking temperature (in degrees Celsius) for a town or city in a country other than the United States. Include the name of the town and country along with the temperature, and

    asked by Feguens Mileon
  107. english

    i need help findng the perfect theme and moral of the novel "we are all welcome here" by Elizabeth Berg As soon as possible Please Thankyou very much!!!!! :) :) :)

    asked by sana
  108. MATH (expansion)

    Which of the following represents the fourth term of the expansion (6x^3+(1/2)y)^6?

    asked by Anna
  109. Earth Science

    Two meanings for the horizontal lines on the geologic History NYS chart.

    asked by Ann
  110. Advanced Biology

    Certain_________ block prokaryotic ribosomes, but not those of eukaryotes. Certain proteobacteria________ nitrogen. The earliest life form may have been a_________ that obtained energy from inorganic compounds. The answers to these fills in a crossword

    asked by Jennifer
  111. English

    1) The poet's initial mood Or state? of solitude turns into happiness 2) The flowers are introduced/described in the first stanza ( can you use PRESESENTED???) 3) Nature is presented as something positive, as a friend and a comforter to man (is it correct

    asked by Franco
  112. Physics

    A object of mass 2 kg experiences an acceleration of 4 m/s2. What is the net force on the mass in Newtons?

    asked by Aly
  113. Carpentry

    Explain the number behind the sheets

    asked by TOM
  114. Algebra

    (2x^3)-(14x^2)+12x=0 x=?

    asked by Kimba
  115. calculus

    write a power series for e to the 2x and find the interval of convergence

    asked by bob
  116. Precalculus

    Solve the inequality and sketch the solution: -3≤ 2(x+4)< 14

    asked by Trevor
  117. English

    1) The albatross as well as the spirits, the angels and the sea monsters are other supernatural elements (Is it correct or is it better to say "Other supernatural elements include...)? 2) The poet makes order (is it correct??) in a world which was

    asked by Franco
  118. math

    whats the answer to 7(2x-4)

    asked by jesileigh
  119. math

    fns he slop o theline tat psses through each par of oints (4,3) (3,8)

    asked by Anonymous
  120. English

    what are some goals of most empires

    asked by jake