Posts by michelle

Total # Posts: 2,060

  1. Chemistry

    269 mL of a 0.2089 M sodium carbonate (Na2CO3) solution is prepared and labelled solution A. Calculate the mass (in grams) of sodium carbonate (molar mass = 105.99 g mol-1) required to prepare Solution.
  2. he

    what are the philosophy of home economics?
  3. physics

    An AC voltage of the form ?v = (65.0 V)sin(340t) is applied to a series RLC circuit. If R = 46.0?, C = 27.0 ?F, and L = 0.300 H, find the following. (a) impedance of the circuit ? (b) rms current in the circuit A (c) average power delivered to the circuit W
  4. science

    a 400 kg block of iron is heated from 295 k to 325 k. how much heat is absorbed by the iron? ( the specific heat is 450 j. /kg. k)
  5. science

    sally and lisa have identical compact cars sally drives on the freeway with a great speed than lisa. which car has more kinetic energy
  6. Physics

    two long, parallel lines each carry 100-A currents are 20 cm apart. 1) calculate the magnetic field at the point C that is 5 cm to the left from the left wire. 2) calculate the magnetic field at the point C that is 5 cm to the right from the left wire. 3) calculate the ...
  7. physics - magnetism

    A positive and a negative particles enter magnetic field at the same angle and with the same velocity. How different would be the path of each particle?
  8. PHYSICS

    by the way i already know the answer, i dont need it. (100 mv) i need to know how to do it or why it is 100 mv
  9. PHYSICS

    I'm having some trouble with a problem on my physics pre-exam, if there is any formula please let me know so i can do a bit of research on it. any help is greatly appreciated in advance. The inner membrane of a cell membrane is negative relative to the outer surface. if 1....
  10. Algebra 2

    Given the exponential function A(x) = P(1 + r)x, what value for r will make the function a decay function? r = ?2.1 r = 2.1 r = 0 r = 0.1
  11. Chemistry

    You have a 35.5 g of a saturated solution of potassium nitrate at 80oC which you cool to 40oC, what mass of potassium nitrate will precipitate out of solution? @80 degrees C solubility is 160g solute/100g H2O @40 degrees C solubility is 60g solute/100g H2O
  12. calculus

    Shouldn't it specify of you are going from the left or the right?
  13. Personal Fiance

    You think that in 8 years it will cost $247,000 to provide your child a 4-year college education. Will you have enough if you take $77,000 today and invest it for the next 8 years at 8 percent? Round the answer to the nearest cent. Round FV-factor and FVA-factors to three ...
  14. Math Circumference to Area???

    Help! It say that the circumference is equal to ? over 2 and i have to find the area HOW DO YOU DO THAT???? C=?/2
  15. Math

    Help! It say that the circumference is equal to ? over 2 and i have to find the area HOW DO YOU DO THAT???? C=?/2
  16. Math

    Well huh?? i am right hun
  17. Math

    A B B B B C B A D A A A A B A B C A THIS IS FOR Lesson 9: Equations and Inequalities Unit Test CE 2015 Essential Algebra Readiness (Pre-Algebra) A Unit 7: Equations and Inequalities IM RIGHT TRUST MEE
  18. Math

    WAIT IM SORRY !!! I DID THE WRONG ONE
  19. Math

    1.a 2.a 3.c 4.d 5.c 6.d 7.a 8.d 9.a 10.b 11.a 12.a 13.b 14.b 15.d 16.b 17.b 18.b 19.a 20.a 21.a 22.b 23.b 24.b
  20. Physics

    Oh great! Now I know. Thank you for answering my question.
  21. Physics

    I am curious how the earth work as an omnipresent conductive surface in an electrical distribution system?
  22. Science

    Why is Earth is the omnipresent conductive surface?
  23. Physics

    It saves human life from the danger of electrical shock which can cause death, by blowing a fuse. How can “blowing a fuse” can rescue someone's life? Please answer. Thank you.
  24. Math

    Determine the points at which the function is discontinuous and state the domain using interval notation f(u)=(4-u^2)/(7u+7?-u^2-u?) Please help.
  25. Math

    Lindsey is 5 years less than half her father's age. The sum of their ages is 79. How old is Lindsey?
  26. math

    im sorry kid you got most of them wrong and no one helped you and your mom should not take away your christmas thats so sad.
  27. Math

    You answered this wrong. 3 trays of strawberry plants is $16.47 not just one strawberry plant. Also the ratio is 3 strawberry plants for every 2 ivy plants. You inverted the ratio. And they want to know how much 10 ivy plants trays + 3 strawberry trays would cost. Shouldn'...
  28. math

    thank you Scott your awesome
  29. math

    oil consumption is increasing at a rate of 2.2% per year. in how many years will the oil consumption be twice the amount it is today?
  30. Math

    if michael opened an account paying 1% interest for 20 years. will his money double in time? how many years will it take to double?
  31. Math

    thank you
  32. Math

    a family of 100 ants invades your home. if its population increases at a rate of 20% per week, in how many weeks will there be 200 ants? 400 ants? and 800 ants?
  33. math

    urban encroachment is causing the area of a forest to decline at a rate of 7% per year. what is the half-life time of the forest?
  34. math

    a daily newspaper had 12,125 subscribers when it began publication. five years later it has 10,100 subscribers. what is the average yearly rate of change in the number of subscribers for the five year period?
  35. Science

    im lost
  36. physics

    a golf ball is hit at an angle of 45 degrees with the horizontal. if the initial velocity of the ball is 52m/s , how far will it travel horizontally before striking the ground?
  37. ss

    B C A C D YOUR WELCOME I HOPE YOU GET 5/5
  38. Social Studies

    What are two helpful developments in Georgia and the rest of the country that occurred after the Revolutionary War ?? Please help me I'm comfused
  39. art

    Anynomos and sam your very welcome
  40. art

    A. D. D. there you go hope i helped you
  41. Geometry

    Find m<HIR if m<RIN =80, m<HIR = 8x+2, and m<HIJ = 19x-6
  42. Math

    h(x) = 2-4x A. h(-5) my answer is -62 B. h(4) my answer is -34
  43. Algebra

    No. My classmate and I are working together.
  44. Algebra

    Please can you explain how to solve the problem?
  45. Physical Science

    How will you prepare a laboratory procedure to verify the validity of the hypothesis? Give example.
  46. Maths age problems

    Tom is 6 years older than James. In 5 years time their combined ages willbe36.how old are they now?
  47. Math-college

    Here is a linear inequality to solve: 8x + 8 < 3 (x + 1)
  48. chemistry

    what is electromagnetic radiation
  49. la

    i dont understand compare the victorian period to modern day life like in christmas carol essay
  50. Physics

    A 0.299 kg bead slides on a curved wire, start-ing from rest at point A as described below: A: a crest (hill) 6.15 m high b: a valley between A and C C: a crest (hill) 1.85 m high The acceleration of gravity is 9.8 m/s2 . 1) If the wire is frictionless, find the speed of the ...
  51. Language Arts

    Ms.Sue! Please help!
  52. Language Arts

    Please help!
  53. Language Arts

    Please help! In an essay discuss the way in which Naomi Shihab Nye treats loneliness in "The Rider" What does loneliness mean to the speaker? How does bicycling help her leave her loneliness behind? Cite passages from the poem to support your points. My answer: ...
  54. French

    Write a paragraph in French of at least 10 sentences talking about a trip you hope to take in the future. What do you hope to do? Write in comp;ete sentences in French.
  55. Chemistry

    If 2.5x10^-3 moles of O2 were produced in the reaction, how many grams of H2O2 had to react?
  56. social studies

    why don' why don't you ask your parents to go back to regular school?
  57. College Math

    What is the change in Michaels total pay for each copy of History is fun he sells? What is Michaels total pay if he doesn't sell any copies of History is fun?
  58. College Math

    Michael is a software salesman. Let y represent his total pay (in dollars). Let x represent the number of copies of History is Fun he sells. Suppose that x and y are related by the equation 1700+90x=y .
  59. Algebra

    30 is the product of Chrissy's height and 2.
  60. Icd10

    A patient presents with hypertrophic scarring to her chin from a burn received one year ago. Scar management has failed. What ICD-10-CM codes are reported? Select one: a. T20.03XA, L90.5 b. T20.03XA, T20.03XS, L91.0 c. L90.5, T20.23XA d. L91.0, T20.03XS D
  61. idk

    JKOPK[
  62. math

    From a group of 65 students who failed Business Mathematics in 2010 we found the following reasons: 35 for not attending class (C); 30 for not doing homework (H) and 25 for not visiting tutors (T). Fourteen did not attend class and did not visit tutors; 15 did not visit tutors...
  63. Technical writing

    Identify the sentence that is punctuated correctly. Select one: a. Once inside, my mother's house seemed much larger than it appears on the outside. b. Once inside my mother's house seemed much larger, than it appears on the outside. c. Once inside, my mother's ...
  64. Technical writing

    B?
  65. Technical writing

    Identify the sentence that is punctuated correctly. Select one: a. My parents moved to West Virginia when they retired because the price of living is cheaper there. b. My parents moved to West Virginia, when they retired, because the price of living is cheaper there. c. My ...
  66. Technical writing

    Identify the sentence that is punctuated correctly. Select one: a. In December 2013 I visited my aunt for Christmas in Allentown, Pennsylvania, for the first time in 20 years. b. In December 2013, I visited my aunt for Christmas in Allentown, Pennsylvania for the first time in...
  67. Technical writing

    Always use a comma before somebody's name in a sentence. A.true B.false B
  68. Hcpcs

    J codes do not include drug_____. Amount?
  69. Technical writing

    Which is the correct comparative form of easy? Select one: a. easiest b. more easy c. easier d. easyer C
  70. Technical writing

    So is it c because the pad is a subject as well right
  71. Technical writing

    Identify the subject and complete verb in each of the following sentences. A pen and a pad of paper are in the top drawer of my desk. Select one: a. paper/drawer; are b. pen; are c. pen/pad; are d. pen/paper; are D
  72. Technical writing

    Thank you Ms. Sue
  73. Technical writing

    Identify each as fragment, run-on, comma splice, or sentence. Edgar Allen Poe invented the convention of the solution that is overlooked. Because it is so obvious. Select one: a. fragment b. run-on c. comma splice d. correct sentence A
  74. Finance

    Annual credit sales of 7.75 million - divide this by 365 and that gives you the daily credit sales = 26,712 multiplied by the 34 collection period and your total is $908,219.18
  75. physical science

    A uniform stripe of eureka (resistivity 5-0 × ?10?^(-7) ?m) has a resistance of 0.80 ? per metre and is 0.25 cm wide. What is its thickness? (show work)
  76. physical science

    A block of carbon, 1.0 cm by 2.0 cm by 5.0 cm has a resistance of 0.80 ? between its two smaller faces. What is the resistivity of carbon? (show work)
  77. physical science

    . The maximum allowable resistance for an underwater cable is one hundredth of an ohm per metre. If the resistivity of cooper is 1.54 × ?10?^(-8) ? m, find the least diameter of a copper cable that could be used (show work)
  78. physical science

    What length of German silver wire, diameter 0.050 cm, is needed to make a 28 ?resistor, if the resistivity of German silver is 2.2 × ?10?^(-7) ? m (show work)
  79. physical science

    The resistance of the ohm is very approximately that of a column of mercury 1.06 m long and of uniform cross-section of one hundred of a cm^2. Find the resistivity of mercury.(show work)
  80. physical science

    Taking the resistivity of platinoid as 3.3 × ?10?^(-7) ? m, find the resistance of 7.0 of platinoid wire of average diameter 0.14 cm.
  81. physical science

    The heating elements of an electric toaster is typically made of nichrome wire (an alloy of nickel and chromium). As current passes through the wires, the wires heat up, thus toasting the toast. Estimate the overall resistance of a heating element which is 220 cm long and ...
  82. pyhsical science

    A wire of uniform cross-section has a resistance of R ?. What would be the resistance of a similar wire, made of the same material, but twice as long and of twice the diameter?
  83. Algebra

    can you help me graph the function y=-5(3^x)please? f(x)=-5(3^x) f(x)=-5*3 f(x)=-5(9) =-15 =-45 Is this the correct way to work this problem out and how to I graph?
  84. Technical writing

    Identify the subject and complete verb in each of the following sentences.
  85. Technical writing

    The teacher should have been more patient with her students. Select one: a. students; should have b. teacher: should have c. teacher; have been d. teacher; should have been D.
  86. Technical writing

    In order to have a complete sentence, you need a ________. Select one: a. subject, verb, and a complete thought b. subject and verb c. subject, verb, and a prepositional phrase d. subject, verb, and a dependent clause
  87. Technical writing

    Two independent clauses joined together with no punctuation create a ________. Select one: a. complex sentence b. compound sentence c. run-on d. comma splice
  88. Chemistry

    Given that the battery produces a current of 2.5A that passes through molten zinc chloride for 3 minutes what charge would be dissipated through the electrolyte
  89. math

    find the maximum and/or minimum values of the function f(x) for the indicated value of x f(x)=x^2 -4x+3 2<_ x _>5
  90. Math 115

    Calculate the slope and write an equation for the linear function represented by each of the given table. A W 5 30 7 40 W=_?___ I PUT W=5x+5 and W=5+5x BUT IT SAID IT WAS WRONG.
  91. Math Velocity

    Jeff is standing on a bridge 5M above the river, He picks up a small rock and tosses it into the air, the rock reaches a height of 12M in one second and hits the water in about 2.3 seconds Determine when the rock reaches a height equal to the bridge but on the way down.
  92. Women should be treated as equals

    Obviously we women are the pillars of the world without us the world wouldn't be able to function properly and it is said that behind every successful man is a powerful woman
  93. Math

    MEME_MASTER i did put the CORRECT answers urghhhh
  94. Math

    MC Ren to who??
  95. Math

    Anonymous im right plzz i am
  96. Math

    I JUST TOOK THE TEST ITS... A B B B B C B A D A A A A B A B C A THIS IS FOR Lesson 9: Equations and Inequalities Unit Test CE 2015 Essential Algebra Readiness (Pre-Algebra) A Unit 7: Equations and Inequalities IM RIGHT TRUST MEE
  97. Math

    Chris had a tin of 24 cookies. He has eaten 1/4 of the cookies. How many cookies has he eaten ?
  98. Probability

    The signers of the declaration of Independence came from the 13 colonies as shown: Massachusetts: 5 New Hampshire: 3 Virginia: 7 Maryland: 4 New Jersey: 5 Pennsylvania: 9 Rhode Island: 2 New York: 4 Georgia: 3 North Carolina: 3 South Carolina: 4 Connecticut: 4 Delaware: 3 ...
  99. math

    ok sure anonymous what test is that is it a quiz if so which lesson
  100. math

    this is for lesson 11 unit 3 rational numbers unit test
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