Questions Asked on
May 19, 2012

  1. physics

    An electron ( mass = 9.11×10−31 kg) leaves one end of a TV picture tube with zero initial speed and travels in a straight line to the accelerating grid, which is 1.85 cm away. It reaches the grid with a speed of 2.95×10^6 m/s . (You can ignore the

    asked by Jennifer
  2. physics

    1 a cyclist moving on a circular track of radius 100m completes one revolution in 2 minutes what is his average speed and average velocity in one full revolution. 2 moving with uniform acceleration a body covers150m during 10 sec so that it covers 24m

    asked by rocal
  3. Business Finance

    Jeff Jones earns$1200 per week. He is married and claims four withholding allowances. The FICArate is as follows 1.45%. To date his cumulative wages are $6000. Each paycheck, his employer also deducts $42.50 for health insurance. What is his net pay?

    asked by Jessica
  4. physics

    (a) if a train travelling at 72km/hr is to be brought to rest in a distance of 200m then wat should be its retardation (b) if a body starts from rest and and travels 120 m in 8th sec then wats its acceleration.

    asked by steeven

    The linearization at a=0 to sqrt(6+6x) is A+Bx where A is:_____ and where B is:_____

    asked by Sarah
  6. Econ

    Suppose the government wants to reduce the total pollution emitted by three firms in its area. Currently, each firm is creating 4 units of pollution in the area, for a total of 12 pollution units. The government wants to reduce total pollution in the area

    asked by John
  7. Physics

    A 5.0 µC point charge is moved within an electric field and has an electric potential energy change of 10.0 J. What is the electric potential difference before and after the charge was moved? Show work. (µC = 1.0 × 10–6 Vq=energy so delta V must be 10

    asked by Pat
  8. physics

    1.Moving with uniform acceleration a body covers 150m during 10sec so thet it covers 24m during the 10th sec .What is the initial velocity and the acceleration of the body. 2.A runner travels 1.5 laps around a circular track of 50sec .The diameter of the

    asked by srikar
  9. Chemistry

    Reviewing for final (this should be basic but...I am stuck): Describe how you would prepare 500.0 grams of a solution of sucrose, C12H22O11, in water which the mole fraction of sucrose is 0.125. I feel like somehow this is a molality question too :( Thank

    asked by MiaowDescribe how you would prepare 1.00
  10. physics

    a satellite completes one revolution of a planet in almost exactly one hour. at the end of an hour , the satellite has traveled 2.0x10^7 meters and is only 10 meters away from its starting point. What is the numerical value of the satellite's average

    asked by Anonymous
  11. physics

    1.A body with an initial velocity of 18km/hr accelerates uniformly at the rateof 9cm/sec2over a distance of 200m.Calculate, a)the acceleration in m/sec2 b)its final velocity in m/s 2.The distance travelled by a body moving with uniform acceleration in the

    asked by srikar
  12. maths

    1).Last year, a shopkeeper sold an average of 7 cartons of apples from january to april. He sold an average of 9 cartons of apples from june till end of the year. What is the total number of cartons he sold in the 11 months? if each carton contains 66

    asked by RS
  13. Trig

    Find two values of theta that satisfy the equation. give your answers in degrees (0degrees

    asked by Sue
  14. Anasazi

    1) How where the Anasazi able to grow crops in their dry land?

    asked by Spencer
  15. world history

    Why did king john of England sign the Magna Carta in 1215? A.The church forced him to sign it in order to set up the Estates General B.His heirs insisted he sign it in order to establish a line of succession C.The Crusades were bankrupting the country.

    asked by ciara
  16. world history

    How did the three-field system contribute to the agricultural revolution that took place during the Middle Ages? A.It allowed peasants to produce more crops B.It gave more land to the peasants C.It gave more land to the nobles D.It helped revive religion

    asked by ciara
  17. Chemistry

    Enthalpy changes: H2O2(l) ----> H2O(l) + 1/2P2(g) delta H= -94.6kJ H2(g) + 1/2O2(g)----> H2O2 delta H= -286.0kJ Calculate the value on delta H for the reaction: H2(g) + H2O2(l)----> 2H2O(l)

    asked by Megan
  18. chemistry

    What is the value of delta G at melting point of ice?

    asked by Shubham shaw
  19. Physics

    Calculate the force between a +5 µC test point charge and this source charge at a distance of 2.00 cm. (µC = 1.0 × 10–6 C)

    asked by Pat
  20. world history

    what feature was shared by the empires of justinian,Ican 111,and suleiman? A.absolute power of the ruler B.decentralized governments C.feudal economies d.religious intolerance My answer is ....C?

    asked by ciara
  21. business

    what select an organization (LL Bean) assess its organizational development, and identify managerial implications at each stage. Cite examples of shifts in products, services, leadership, processes and so forth.

    asked by Debra
  22. Foreign languages

    I left out a few sentences. Thank you veru much. I need to make sentence 5 shorter. 1) In 1766 William Pitt the Elder was elected Prime Minister and he made England a strong and flourishing commercial country. 2) During the 18th century the middle class

    asked by John
  23. physics

    1.A train passes an electric post in 8sec and a bridge of length 1km in 108sec .Find the speed of the engine . 2.A runner travels at the rate o f25km/hr for 4min ;then at 50km/hr for 8minn and finally at 20km/hr for 2min .Find a) the total distance covered

    asked by srikar

    The differential of the function y=(x^2+9)^3 is dy=_________ dx. When x=3 and dx=005, the differential dy=_________

    asked by Sarah

    The circumference of a sphere was measured to be 83000 cm with a possible error of 050000 cm. Use linear approximation to estimate the maximum error in the calculated surface area. ________________ Estimate the relative error in the calculated surface

    asked by Sarah

    Consider the function f(x)=5–4x^2 , -3≤x≤1 The absolute maximum value is __________ and this occurs at x equals ___________ The absolute minimum value is _________ and this occurs at x equals ___________

    asked by Sarah
  27. algebra 2 homework check

    Ruth is scheduling a soccer tournament in which 64 teams will participate. After each round of soccer games, half the teams advance to the next round of the tournament. After all the rounds are played, how many total games are in the tournament? Is it 48?

    asked by Anonymous
  28. math

    Hello. Please, help me solve this: Parabola y = ax^2 + bx + c passes through the point (2;-6). Find the values of a, b and c, if vertex of parabola is (4;-10).

    asked by eve
  29. algebra 2

    The first 3 terms in a geometric sequence are 1.1, 1.65, and 2.475. Part A: What is the sum of the first 6 terms of the sequence? Show your work. Part B: How does the sum of the seriesy differ from the 6th term? Explain. Part C: If the nth term in this

    asked by jenny
  30. math

    solve csc^2x - cscx + 9 =11

    asked by joe
  31. Trigonometry

    Express each of the following as a single logarithmic expression. All exponents must be left in radical form: 1.) 2logx-3logy 2.) logx-logy+logz 3.) 1/3log5x+2/3log6x 4.) 2/3(logbase2 x - logbase2 y) I don't understand these problems at all. Can someone

    asked by Nabil
  32. Physics

    The strength of an electric field at 5.0 cm from a point charge is 100.0 N/C. What is the magnitude of the source charge? Show work so I understand how to do it.

    asked by Pat
  33. Physics

    A 5.0 µC point charge is moved within an electric field and has an electric potential energy change of 10.0 J. What is the electric potential difference before and after the charge was moved? Show work. (µC = 1.0 × 10–6 C)

    asked by Pat
  34. Physics 30

    A test charge of 5.0x10^-6 C is moved 2.0 cm through an electric force of 6.0 x 10^-7 N . What is the change in evergy of the test charge? What is the change in voltage on the charge? Help

    asked by Martin
  35. Physics

    Calculate the force between a +5 µC test point charge and this source charge at a distance of 2.00 cm. (µC = 1.0 × 10–6 C) force=kq1q2/r^2 Have the formula now what do I do?

    asked by Pat
  36. Lost in Physics

    The strength of an electric field at 5.0 cm from a point charge is 100.0 N/C. What is the magnitude of the source charge? Show work so I understand how to do it. E=kQ/r^2 solve for Q, you have r, E What do I do NOW? I am lost

    asked by Pat
  37. coding

    What is the difference between ICD-9-CM codes and MS-DRGs?

    asked by joan
  38. physics 30

    A flash of lightning transfers 1.5 x 10^9 Joules of energy through a potential difference of 5.0 x 10^7 Volts between a cloud and the ground. Calculate the quantity of charge transferred in the lightning bolt. How many electrons were transferred? Does this

    asked by Martin
  39. s.s.

    Why was the aztec civilization considered warlike?

    asked by Hanna
  40. 6th grade history

    Where did the mound builders live???

    asked by Aria
  41. Anasazi

    Also, how did the Anasazi create homes that were adapted to their environment?

    asked by Spencer
  42. history

    How were the Pueblo people like the Anasazi???

    asked by Spencer
  43. world history

    What was one result of the cultural blending between Muslims and Hindus ? A.the destruction of buddhism B.the mughal dynasty C.the skin religion D.the caste system My answer is ..B ?

    asked by ciara
  44. world history

    What pope urban 11 initiate at the Council of Clermont ,and why ? A.the Reconwuista; to expel non-Christians from spain B.the Crusades;to free the Holy Land from non-Christian control C.a schismm;to excommunicate Henry ll for violating Church law

    asked by ciara
  45. Art

    how is cubism considered an emotional approach?

    asked by Mel
  46. world history

    Which ruler converted to islam and made a hajjin in 1324,forgiving new diplomatic and economic ties with other Muslim states while crossing Africa ? A.Ezana B.Mansa Munsa C.Sonni Ali D.Muhammad My answer is ...B?

    asked by ciara
  47. geometry

    The equation (x + 6)2 + (y + 4)2 = 36 models the position and range of the source of a radio signal. Describe the position of the source and the range of the signals.

    asked by ashley
  48. World history

    Under the shilla dynasty , Korea became a tributary state of China. What is a tributary state ? A. A tributary state consists of one or more villages and is located within a sovereign state. B.A tributary state owes it allegiance to another state and

    asked by ciara
  49. World history

    Knight : chivalry:: samurai A.shogun B.Lord C.bushido D.daimyo My answer is ..C?

    asked by ciara
  50. physics

    Given that the mass of an electron is 9.1 x 10^-28 grams and the charge on an electron is 1.6 x 10^-19 Coulombs, calculate the voltage required to lift an electron 5 cm. not quite sure how to do this.

    asked by Martin
  51. hebrew basic

    we need to write on the computer the translation for careful speech we do not know how to use the keys to make the symbols help please

    asked by daniel
  52. Foreign languages

    I would like you, Writeacher to help me check a few sentences. Thank you. 1) English Parliament was divided into two parties: the Whigs and the Tories. The former descended from the Parlamentarians. 2) They encouraged commercial and trade (?) progress and

    asked by John
  53. miss sue

    does this include the vowels

    asked by daniel
  54. Chemistry

    How many moles of K atoms are there in 152.8247 grams of KMnO4?

    asked by Lilly
  55. Chemistry

    Now if your lab partner determined that there were 5.001 x 1022 atoms of K in an unknown sample of KMnO4, how many milligrams would the unknown sample weigh?

    asked by Lilly
  56. Math

    I am having trouble with the concept of unit conversions for math C30. I am in cyber school and it does not seem to be explaining it as much as I would like. Here is the question: Change 25 kilometers per hour into feet per second. Can you please explain

    asked by Jill
  57. statistic

    the academic staff of a large university are provided with a PC each. it is known that after a number of years the PC need to be upgraded. The time interval before upgrading of the PC is distributed normally with a mean of 24 months and a standard

    asked by pusaran
  58. social studies/ history

    1) Explain the Iroquois system. 2) How did the Europeans change the ways of life of the Plains Indians. Help! And no links please since I am in a rush, I have to pick someone up.

    asked by casey

    If $835 is invested in an account that earns annual interest of 4.5%, compounded semiannually, what will the account balance be after 13 years? (Round your answer to the nearest cent.)

    asked by Monic

    Find the amount of compound interest earned in an account that opens with $29,000, earns 7.5% interest compounded daily, and is held for 5 years. Assume 360 days in a year. (Round your answer to the nearest cent.)

    asked by Monic
  61. algebra

    use the intercepts to graph the equation x-5=y

    asked by patrice
  62. math 117

    perform the indicated operations and simplify z-4/z-6 - z+1/z+6 + z-30/z^2-36

    asked by Lori
  63. geometry

    a recreation has the following dimensions. 15ft,33ft, 12ft, and 12ft. Carpeting will cost $ 1.50 per square foot. How many square feet of carpet will be needed and how much will it cost. Include correct units in each solution.

    asked by angela
  64. physics

    given that the mass of an electron is 9.1 x 10^-28 grams and the charge on an electron is 1.6 x 10^-19 Coulombs, calculate the voltage required to lift an electron 5 cm. the question was previously answered, but I did'nt understand it .. could some show me

    asked by Martin
  65. alg2

    solve for 10/x^2-2x + 4/x = 5/x-2 3x/x+1 + 6/2x = 7/x 8(x-1)/x^2-4 = 4/x-2 check for any extraneous solutions! thanks!

    asked by skye
  66. English

    What hs he doing? - He is taking a picture. - 1) Oh, this is him. - 2) Oh, this is he. (Which one is correct in the short dialogue? !) or 2)?)

    asked by rfvv
  67. English

    1. He has a lot of interesting looks. 2. He has a lot of interested looks. (Which one is correct? Do both have a different meanings?) 3. What animal do you have? - I have a turtle. 4. What kind of animal do you have? - I have a parrot. 5. What animals do

    asked by rfvv
  68. math

    The Earth rotates once every 24 hours. What is the angular speed of a point on the Earth's surface in rad/min. Give your answer to five decimal places. Use 3.14 for pi. (example units: m/s, mi/h)

    asked by Jill
  69. English

    1. Imagine it is lunch time now. 2. Imagine it is a lunch time now. (which one is right? do we have to use 'a' or not?) 3. Suppose he is a stranger. And answer the question. 4. Imagine he is a stranger. And answer the question. 5. Pretend he is a starnger.

    asked by rfvv
  70. social studies/ history

    Oh!!!! Ms.Sue, the question said "Explain the Iroquoise pollitical system".

    asked by casey
  71. ثاني جامعة‏_انجليزي

    اسئلة لرواية جيليفر

    asked by amal
  72. chemistry

    the mass number of an element is 18 it contains 7 electrons what is the number of protons and neutrons in it what is atomic number of an element.

    asked by riana
  73. physics

    a truck running along a straight line increases its speed uniformly from 30m/s to 60m/s over a time interval 1 min find the uniform acceleration and the distance travelled during this time interval.

    asked by ken
  74. chemistry

    how many times a proton is heavier than an electron

    asked by kelly
  75. science

    John folded a wet washcloth in four. Mary spreads hers out. Which washcloth dried the quickest???And please explain.

    asked by ellie
  76. physics

    a body is moving with a velocity 96m/s is to be brought to rest in the 16 sec find displacement of body before it comes to rest and also find velocity after 10 th sec

    asked by steeven
  77. algebra 2

    Yves and some friends are playing a fair game in which 18 cards are dealt to 6 players. One of the cards is a queen. The player who receives the queen goes first. What is the probability that Yves will go first?

    asked by jenny
  78. 6th grade science

    the purpose of including a control in an experiment is to provide_______. can someone please help me solve what the blank/____ is???

    asked by snowy
  79. maths

    1 if x+1/x=2 then x^2012+1/x^2012=........ 2 if A > B > C > D, find the digits A,B,C,D which are from 1 to 9 so that ABCD-DCBA=BDAC 3 solve x+y=28 xy=127

    asked by illeana
  80. political science

    Both California State Senators and US Senators are elected to six year terms.? true or false?

    asked by Brandz
  81. Art

    Writeacher, I urgently need you to check these sentences. Thank you. 1) They got him to give back the animal: He was persuaded to give back the animal. They had him give back the animal: He was requested (kindly invited) to give back the animal. 2) He

    asked by John
  82. math

    how do i work out the following word problem. a particular ball retains half of its heght on each bounce when dropped from a height of 80 m. give the height of the ball on the fifth bounce after being dropped?(will the ball comes to rest?)

    asked by ladane
  83. math patterns and tables

    can you help me: i need to let n equal the term number. i need to figure out the expression for the following number sequence: 1, 4, 9, 25, 36 i cant figure this out

    asked by marko
  84. maths

    1. a first train travelling at x km an hour takes t hour less to travel y km than a slower one takes to travel z km . find the different between their speed 2. a man has one kind of coffee at 'a' paise per kg and another at 'b' paise per kg how much of

    asked by saila
  85. Chemistry

    Calculate the degree of freedom of NH4Cl, initially in an evacuated chamber, with NH3 & HCl present from decomposition.

    asked by Meron
  86. algebra 2

    If no digit appears more than once, how many 2-digit numbers can be formed from the digits 1, 3, 5, and 7?

    asked by jenny
  87. algebra 2 homework check

    Tell whether the possibilities should be counted using a permutation or combination. Then find the number of possibilities. You have a carrying case that holds four CDs. You want to know in how many ways you can place four of the ten CDs you own into the

    asked by jenny
  88. algebra 2

    Ralph, Mario, Jack, Laura, and Maria are in the math club. The club advisor will assign students to 3-person teams at the next math team competition. How many different 3-person teams can be formed from these five students? I got this was my

    asked by jenny
  89. algebra 2

    Mary invested one amount at 5% simple interest, and a second amount at 4% interest, earning $21.32 in one year. If she had switched the amounts, she would have earned $25.84. What were the two amounts?

    asked by Anonymous
  90. Business Finance

    Lisa Kane borrowed $8000 on an 8% 60 day note. After 15 days, Lisa paid $2000 on the note. On day 45, Lisa paid $1000 on the note. What is the total interest and ending balance due by the U.S. rule? Use ordinary interest.

    asked by Tom
  91. Business Finance

    On May 12, Bob Campbell accepted a $5,000 note in granting a time extension of a bill of goods bought by Rick Ween. Terms of the note were 8% for 120 days. On July 8, Bob needed to raise cash and discounted the note at Rick's bank at a discount rate of 9%.

    asked by Jessica
  92. algebra 2 homework check

    Ruth is scheduling a soccer tournament in which 64 teams will participate. After each round of soccer games, half the teams advance to the next round of the tournament. After all the rounds are played, how many total games are in the tournament? Is it 48?

    asked by Anonymous
  93. English

    Toss a coin. And if you get a head, move one space forward, and put a marker in the space. If you get a tail, move two spaces. Look at the word or picture on the space. By using it, make a sentence on the right side of the page. (Would you check the

    asked by rfvv
  94. math

    M and N are the midpoints of the sides of a square. What is the ratio of the area of triangle AMN to the area of the complete square? But the answer has to be in a ratio which is the area of a triangle to the area of the complete square. Also the triangle

    asked by alandra
  95. HUman resource managment

    Can someone explain to me about the developing and resource strategies in HRM, in the staffing??

    asked by PALLAVI
  96. math

    square ABCD has the centers of 4 equal circles as its vertics. Find the shaded area

    asked by alandra
  97. chemistry

    What is the mass of naoh needed to prepare a 0.365m solution dissolved in 1525ml of water

    asked by warren
  98. Life Orientation

    A clear explaination of how drug addiction is a human factor that may cause ill health,accidents,crises or disaster

    asked by Buhle
  99. Life Orientation

    An explanation of the importance of making healthy decision/choices to avoid the consequences of drug addiction

    asked by Buhle
  100. math

    Square ABCD has the centers of 4 equal circles as its vertices. Find the shaded area.

    asked by alandra
  101. math

    Square ABCD has the centers of 4 equal circles as its vertices. Find the shaded area. it like this OO OO only that the up and down circles are together and in the middle is the area to be find it's shape like a diamond

    asked by alandra
  102. Physics

    a. In which case will there be more current in each of three lamps - if they are connected to the same battery in series or in parallel? b. In which case will ther be more voltage across each lamp?

    asked by Larry
  103. writing

    a paragraph with eight lines a specific job human resouces dept wont to see your writing

    asked by willie
  104. Physics

    What happens to the total circuit resistance when more devices are added to a series circuit?

    asked by Jan
  105. writing

    I need help with my writing? How can I get help

    asked by willie
  106. Finance

    The management of One-M Berhad is considering an expansion project for their current business. RM125,000 is needed for the expansion and two options has been proposed. Under Option I, the project will be financed by issuing new common stocks that can be

    asked by Anonymous
  107. finance

    Miya, a single investor owns 1000 shares of Advance C-Synergy (ACS), common stock. She originally bought the stock two years ago at initial public offering (IPO) price at RM5 per share. The stock of this fast growing technology company is currently trading

    asked by hong
  108. algebra

    The equation that describes the path of a small rocket after it is shot into the air is h=1120-16t^2, where h is the height above the ground, in feet, after t seconds. How many seconds does it take for the rocket to return to the ground?

    asked by Amber
  109. MAth

    How i change 315 grad in 7xpi/4? I have on Thuesday a exam in math but i don't no how i can convert 135 grad in in this form(how the example above). I need it for complex Numbers

    asked by Deny
  110. Math

    A box of dog food would feed 5 dogs for 4 days. How long would it feed 8 dogs ?

    asked by Jim
  111. alg2

    how do i solve for: 2^(x+1) =9 3e^(x-8) +5=14 log2x=4 and ln(2x-5)=4? thanks!

    asked by bkue
  112. math

    a rectangle with the height of 5ft and the suface area of 100 and a bigger ectangle with the height of 10ft how much surface area

    asked by anthony
  113. Physics

    If the test charge were moved closer to the source charge, would the change in its potential energy be positive, negative or zero? Explain.

    asked by Pat