Questions Asked on
June 2, 2015

  1. physics

    consider a vertical piston system. the piston has a 50g mass and a given radius of 3mm. what amount of pressure does the piston exert? ( use g==9.8 m/s^2 )

    asked by charles
  2. math

    use inductive reasoning to determine the units digit of the number 2^44 the unit digit of 2^44 is_____ powers of 2- 2^1=2 2^2=4 2^3=8 2^4=16 and so on that last one they have is 2^12 so 2^44 would be 1.7592188?

    asked by Jessica
  3. Health

    what is the section in the 'Medication problem A.C.T.I.O.N. plan ' resource that you would turn to when addressing the situation

    asked by KIKI
  4. informal Logic

    The untimely death of Professor Hathaway halted his groundbreaking research into the uses of solar power. It therefore appears that Hathaway’s research will not result in practical applications. Which one of the following, if true, most seriously weakens

    asked by christopher
  5. algebra Please help

    .A toy rocket is shot vertically into the air from a launching pad 5 feel above the ground with an initial velocity of 72 feet per second. The height h, in feet, of the rocket above the ground as t seconds after launch is given by the function

    asked by Ann
  6. Physics

    Vector C has a magnitude 25.8 m and is in the direction of the negative y-axis. Vectors A and B are at angles α = 41.9° and β = 25.2° up from the x-axis respectively. If the vector sum A B C = 0, what are the magnitudes of A and B?

    asked by Mark
  7. Math

    A figure in the coordinate plane is reflected across the line y = x + 1 and then across the line y = x + 3. Find a translation vector that is equivalent to the composition of the reflections. Write the vector in component form. I know the answer is (-2,

    asked by Anonymous
  8. informal Logic

    A recent study of 100 employees from six departments of a major corporation found 65% to be sleep deprived. The researchers concluded that the majority of corporate employees are sleep deprived. The researcher’s conclusion is suspect because it (Points :

    asked by christopher
  9. Psychology

    I want to condition a pet pig to come running for a food reward when I blow a whistle. In the process of this conditioning effort, the main idea is to A. pair a neutral stimulus with an unconditioned stimulus. B. teach the pig to pay attention to the sound

    asked by Lynd
  10. Ayanda zungu

    English is the language of opportunity. Why bother to teach indigenous languages?

    asked by Madah zungu
  11. Chemistry

    How many grams of NaCl will you need to mix 200ml of a 2.3M solution?

    asked by Dennese
  12. math

    Joanie wants to mail a package that requires $1.30 in postage. If she has only 5-cent and 7-cent stamps, what is the smallest number of stamps she could use that would be totally exactly $1.30? the smallest number of stamps is ____.

    asked by Jessica
  13. algebra

    World Records in the 1500-m Run. The formula R = -0.075t + 3.85 can be used to predict the world record in the 1500-m run t years after 1930. Determine (in terms of an inequality) those years for which the world record will be less than 3.5 min.

    asked by martin
  14. ELA

    . Which of the following sentences has a dangling modifier? A. The dog that is man's best friend is cat's worst enemy. B. On the way to the bank, the interest rates went down." C. By the light of the moon, I tripped over a rock. D. When the storm began to

    asked by Brooklyn
  15. Science Help Plzz

    1. The images above show particles in a medium. Which of the following shows the worst conditions for a sound wave travel? A B C D is the answer A? Which of the following correctly describes a radio wave? A long wavelength and high frequency B long

    asked by Diana
  16. informal Logic

    All sages provide both wisdom and inspiration. Since Dasha’s speech contained wisdom and greatly inspired her audience, Dasha is a sage. Which one of the following points out the flaw in the argument above? (Points : 1) Just because Dasha is a sage

    asked by christopher
  17. Macroeconomics

    (Monetary Control) Suppose the money supply is currently $500 billion and the Fed wishes to increase it by $100 billion. a. Given a required reserve ration of 0.25, what should it do? b. If it decided to change the money supply by changing the required

    asked by Beth
  18. HESI

    Rick rides 11 1/8 miles in an hour with his bike in second gear going uphill. If Rick rides downhill in fourth gear he goes 2 1/2 times faster. How many miles will Rick go in an hour downhill in fourth gear?

    asked by leila
  19. English

    Which country do you want to travel to among the three countries on the two pages? How come you want to travel to the country? 1. I want to travel to Canada because I want to try/eat beaver tails in Ottawa. They are sweet. 2. I want to travel to Belgium

    asked by rfvv
  20. Math

    a turtle is at the bottom of a 11 foot well. each day it crawls up 5 feet, but each night it slips back 3 feet. after how many days will the turtle reach the top of the well? the turtle will reach the top of the well after ___ days THANK YOU

    asked by Jessica
  21. Pre-Algebra

    For questions 2 and 3, simplify the polynomial. 2. 2x^2+8-4x+3x-6x^2+7 a.-8x^r-7x+15 b.-4x^2-x+15 c.4x^2+x+15 d.8x^2+7x+15

    asked by Richy305
  22. Math help please

    Which hill described in the table is the steepest? Explain. Street|Horizontal distance|vertical rise Dixie |80 |40 hill | Bell |80 |20 hill | | Liberty|80 |60 hill | | A)Bell Hill;it rises 1 foot for every 4 feet of horizontal travel. B)Dixie Hill; it

    asked by UMACBLACKBELT
  23. physics

    A 100 g aluminum calorimeter contains 200g of water at 15 degrees Celsius. If 100 g of lead at 50 degrees Celsius and 60 g of copper at 60 degrees Celsius are placed in the calorimeter, what is the final temperature in the calorimeter?

    asked by Saad
  24. Chemistry

    The density of pure diamond is 3.5 g/cm^3. The mass of a diamond is 0.25 g.Calculate its volume.

    asked by jessica
  25. French

    Salut! Je m'appelle Karim et j'ai 16 ans. J'habite à Paris avec ma famille: mon pere, ma pere, mes deux freres et ma soeur. Moi, je suis grand et mince et j'ai les cheveux noirs et les yeux marron. Je suis sympa et tres sportif. Je fais du jogging, du

    asked by Anonymous
  26. statisic

    The current rate of success is 70% for 200 students. When the new test is implemented, the rate increases to 85% for the 50 students who pass the test and are allowed into the program. Is this difference significant?

    asked by judy
  27. physics

    consider the arrangement of four +20 microCouloumb point charges located at all 4 corners of a square with 30cm sides. calculate the magnitude and direction for the force on each charge due to the other 3 point charges.

    asked by gipi
  28. Math

    1. What percent of people chose the Ferris wheel or the carousel as their favorite ride? Other 19% Ferris wheel 18% Carousel 25% Roller coaster 38% A. 25% B. 37% C. 43% < -- C? D. 56% 2. Two hundred people were surveyed about their favorite ride at an

    asked by Nyla
  29. math

    144^14/144^2 A.144^16*** B.144^12

    asked by Anonymous
  30. ENGLISH

    Create an accurate summary of Marilyn Lee Cross and her reasons for being aboard the EDS. Provide your answer in two to three sentences.

    asked by KATHEREN
  31. Physics

    A 5kg package is lifted vertically through 10m at constant speed. What is the potential energy of the package if acceleration due to gravity is 10m5 to power negative 2

    asked by Annah
  32. psych 100

    The basic building block of the nervous system is

    asked by Anonymous
  33. Math

    What is the value of the function when x = 3? x −2 −1 1 3 4 y 4 3 6 5 8

    asked by Sara
  34. Math

    Write the expression in terms of costheta and then simplify. cos^4theta - sin^4theta + sin^2theta Ans: cos^4 θ - 1 - cos^4 θ + 1 - cos^2 θ = -cos^2 θ

    asked by Anonymous
  35. Math

    I need help with this question. Suppose that f(0)= 0 , f(1)= 4, f(2)= 4, f(3)= 10, f(4)= 16 and g(x) = -f(2x+3). Find any 5 points on g(x).

    asked by Anonymous
  36. probability

    The bumper car ride at the state fair has 3 red cars, 4 green cars, and 2 blue cars. Joe is first in line for the ride and is assigned a car at random. Bill in next in line and is randomly assigned a car. What is the probability that both joe and bill will

    asked by Harris
  37. history

    How did President Clinton help bring out the Camp David Accords?

    asked by Anonymous
  38. Math

    I need help with this question: Express below function in terms of f(x) if f(x)= x^2 y= 3(-4x-2)^2 + 5

    asked by Anonymous
  39. Chemistry

    Describe briefly,but including all essential experimental details and relevant equations, how you would prepare pure dry samples of - anhydrous iron (ll)chloride starting from iron.

    asked by Violet
  40. Language Arts

    The Passage is "The Trouble of Being Earnest" Which statement best expresses a theme of the passage? Some secrets are better left as secrets. Rules change depending on the situation. Marriage changes a person. Nothing is as it seems. I'm stuck between C

    asked by Alice
  41. Physics

    An olympic hurdler is in a race. He is running at 10 m/s and jumps over a hurdle. How high did he jump if he was moving at 1m/s as he crossed the fence?

    asked by Aleisha
  42. math

    Imagine you are the owner of a pizza shop that offers three different types of crusts, seven different toppings, and three different cheeses. Create an advertisement for your shop with three lists: one for crusts, another for toppings, and a third for

    asked by amanda
  43. math algabra

    The area of the living room is 162 ft2. What are the length and width if the width is twice the length

    asked by brittany
  44. informal logic

    Mrs. Orlof teaches two history classes, one in the morning and one in the afternoon. Yesterday she gave the same test to both classes. Anyone who failed the test must take a retest. Since a greater percentage of students who took the morning test failed

    asked by jessica
  45. Algebra 1

    There are 8 speaking roles in the play. Of the 8 speaking roles, 5 are for males and 3 are for females. After the 8 speaking roles in the play are cast, the remaining cast members will make up the chorus. C. What is the probability that the set of siblings

    asked by Amy
  46. logic

    Aron: The two double A batteries in my CD player are dead, so the CD player doesn’t work. My television remote control, which also uses two double A batteries, works fine. So if I move the two batteries from my television remote control to my CD player,

    asked by Anonymous
  47. Maths

    What is the daily interest rate for the following amount: $598 for 186 days at 7.75% APR

    asked by Michele
  48. science

    I want to write a CV , could you help and notice me how to do it ? with respects

    asked by MAD
  49. To Alex -- French

    I deleted your post because you included your email address. We don't allow such personal information to be posted here. Here's your message: "I am currently doing French 20 through VHL Central can someone please help me with Lesson 2B-Enregistrez as I can

    asked by Ms. Sue
  50. physics

    A blob of mass 5 kg is place on a table top.it is attached to a mass piece of 2kg by a light string that passes over a frictionless pulley.the table top exerts a frictional force of 7 N on the block (a) calculate the accelation of the system

    asked by lesedi
  51. civics

    Would it be possible to have a socialist direct democracy? (3 points) A. No, in a socialist society only a few high-ranking members of the communist party have political power. B. No, a direct democracy requires a free market economy which is not

    asked by Nani
  52. physics

    The distance between the midpoints of two metal balls,P and Q,respectively of masses 55 kg and 70 kg,is 80 cm (a)calculate the gravitational force that P exerts on Q thanks in advance

    asked by happy
  53. math

    If the path from park rangers station to camp ground is 0.55 miles determine and state to the nearest hundred of a mile.

    asked by gary
  54. CHEMISTRTY

    IF CO2 TRAVELS 20.5 CM DOWN A 46.0 CM GLASS TUBE IN 1.3*10^4 AS IN THE GRAHAMS LAW EXPERIMENT, THEN COLLIDES WITH ANOTHER GAS. WHAT IS THE MOLECULAR MASS OF THE SECOND GAS?

    asked by Joseph
  55. CHEMISTRTY

    TWO IDENTICAL NANO METERS ARE FILLED WITH MERCURY. THE NANO METERS ARE PLACED IN A CLOSED PRESSURIZED BOX CONTAINING AIR AT 1,000 TORR PRESSURE. ONE NANO-METER CONTAINS GAS a, AND THE OTHER GAS B. WHAT IS THE DIFFERENCE BETWEEN THE PRESSURES OF THE TWO

    asked by Joseph
  56. Madah zungu

    Traditional africam marriage is an advantage for men only, no women. Plz halp me people plzzz

    asked by Madah zungu
  57. STATISTICS

    Find the approximate 84th percentile of the pig pregnancy length distribution

    asked by Ashley
  58. Math

    The point (-4, 6) is on the terminal side of theta in standard position. Which is the cosine of theta? 1. - 2sqrt13/13 2. -2/13 3. 2/13 4. 2sqrt13/13 I think it is one of the negative ones, but I'm not sure of which.

    asked by Anonymous
  59. Math

    Which angle measure is closest to 8 radians? A. 100 degs B. 120 degs C. 150 degs D. 360 degs

    asked by Anonymous
  60. algebra A055,

    World Records in the 1500-m Run. The formula R = -0.075t + 3.85 can be used to predict the world record in the 1500-m run t years after 1930. Determine (in terms of an inequality) those years for which the world record will be less than 3.5 min. { Y l Y >

    asked by martin
  61. algebra A055,

    World Records in the 1500-m Run. The formula R = -0.075t + 3.85 can be used to predict the world record in the 1500-m run t years after 1930. Determine (in terms of an inequality) those years for which the world record will be less than 3.5 min. { Y l Y >

    asked by martin
  62. physics

    Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.6 kg · m2 and an angular velocity of +7.9 rad/s. Disk B is rotating with an angular velocity of -10.6 rad/s. The two disks are then linked together without the aid of any

    asked by Anonymous
  63. Algebra

    The time, t, required to drive a certain distance varies inversely with the speed, r. If it takes 12 hours to drive the distance at 60 miles per hour, how long will it take to drive the same distance at 85 miles per hour? A. About 7.08 hours B. About 5.00

    asked by AJ
  64. informal Logic

    Catherine goes to her local movie theater only to see romantic comedies. Since Catherine did not go to the movies yesterday, there is not a romantic comedy playing at her local theater. The reasoning above is flawed because the evidence (Points : 1) does

    asked by christopher
  65. calculus

    Can I have a website of Beginner calculus books?

    asked by ken
  66. chemistry

    TWO IDENTICAL mano METERS ARE FILLED WITH MERCURY. THE mano METERS ARE PLACED IN A CLOSED PRESSURIZED BOX CONTAINING AIR AT 1,000 TORR PRESSURE. ONE manometer CONTAINS GAS a, AND THE OTHER GAS B. WHAT IS THE DIFFERENCE BETWEEN THE PRESSURES OF THE TWO

    asked by Joseph
  67. ELA

    13. Which of the following statements about connecting paragraphs is correct? A. Two paragraphs may be joined by an action verb. B. A good connection between two paragraphs is an implied transition. C. You can use a pointing word that that refers to a word

    asked by Brooklyn
  68. physics

    Mechanical energy is the difference between the kinetic and potential energies of an object. true or false?

    asked by Anonymous
  69. life orientation

    describe a recent service delivery protest in your community

    asked by Anonymous
  70. life orientation

    what are the problems that the community faced? what did the community members do before the protest?

    asked by Anonymous
  71. Physics

    We have to work out the accepted value of a roller coaster cart (taking into account friction) when the mass is modified Here is the answer I got for 56.71 grams: 0=∆EGP+∆EK+Fd 0=mg(hf-hi )+1/2 m(v^2-u^2 )+Fd 0=0.05671 × 9.8 (0.075-0.786)+1/2×

    asked by Madi
  72. express protein

    If I would like to express a protein in the living cell so that when it is expressed in the cell it can bind to the membrane covalently. How can I do this (experimentally) ?

    asked by Angora
  73. Math

    Determine whether the polygons with the given vertices are similar. Support your answer by describing a transformation. V(3,2) W(8,2) X(1,5) R(6,4) S(16,4) T(3,15) I think they are not similar because V and W are dilated by 2 and X is dilated by 3. They

    asked by Anonymous
  74. CHEMISTRY

    calculate the volume of air required for complete combustion of 1m^3 of gaseous fuel having the combustion:CO=46%,CH4=10%,H2=4%,C2H2=2.0%,N2=1% and the remaining being CO2

    asked by Anonymous
  75. health

    Review the nutrition quality of the items, using what you know about daily values and ingredients. One of the products must have a health claim. Using the two food labels, write a 300 - 500 word essay. I need help coming up with a thesis statement.

    asked by crissy
  76. Physics

    Assume that Earth’s magnetic field is every- where perpendicular to the path of a proton and that Earth’s magnetic field has an inten- sity of 4.10 × 10−8 T. What speed would a proton need to achieve in order to circle Earth 1170.0 km above the

    asked by Cassandra
  77. Physics

    I want to lift a 90kg box using an inclined plane, but I only have 30kg of strength. What does the length and height of the inclined plane need to be?

    asked by Sammy
  78. physics

    A block of 25 is pulled horizontally on a rough surface by the force 120N.the coefficient of friction between the surface is 0.34 how do i calculate the accelation of the block

    asked by kem
  79. Math

    Question: over the last year, stormy and her 2 sisters saved money for their family trip this summer. They are now getting right to know how much they can spend on each of the 15 days of their trip. If they saved a total of $420, what is the total amount

    asked by Abbey
  80. English

    There are many sellers on both sides of Wangfujing Street in Beijing. they sell all kinds of stick food. What is the suitable name for the sellers? 1. street venders 2. shop owners 3. sellers 4. shop keepers

    asked by rfvv
  81. Alegebra

    Please solve. 7(w+2)/12 = 2(w-7)/6

    asked by Gregg
  82. English

    1. Which street food can you find on Wangfujing Street? - We can find all kinds of stick food there. 2. What kinds of stick food do you like most? - I like fruit sticks most. - I like fruit stick food most. - I like the fruit stick food the most. 3. Which

    asked by rfvv
  83. Algebra

    Solve. -9(4-k)/12 = 9(k+1)/8

    asked by Robert
  84. Algebra 2

    Michaela is solving rational equations. A. What is the solution set of the equation ... x^2-7x+12 (all over or divided by) x^2+x-12 both equal to 3. What I did first was factor both equations geting (x-4) on the top and (x+4) on the bottom both equal to 3.

    asked by Macin
  85. Algebra 2

    The only solution of the equation ... x&2+bx-18 over (divided by) -2x+4 equals 4.... When x=-17. I plugged in the number and replaced x with -17 and it looks like this... (-17)^2 +(-17x)-18 over 38. I just got lost.

    asked by Macin
  86. Algebra 2

    x^2+2x-15 (all over) x-3 equals 3. (x-3) * x^2+2x-15 (all over) x-3 equals 3 *(x-3) x^2+2x-15=3x-9 x^2-x-6=0 (x-3)(x+2)=0 x-3=0 or x+2=0 x={3, -2} I did something wrong here but I'm not sure what I did that is wrong. What is my error? Or is it the

    asked by Macin
  87. Math

    Write a possible explicit rule for the nth term of the sequence, then use it to find the 20th term. 5, -10, 20, -40, 80, -160.... Ans: a(n) = 5(-2)^n - 1 20th term: -2621440

    asked by Anonymous
  88. physics

    can someone help me with this, two positive points charges q=10uc and q2 5uc are placed at the top right and bottom left of a square of side 20cm respectively, I was told to find it's magnitudes an directions of the forces erected by each charge.

    asked by mr. yamo
  89. Math

    Can -x^2 - 5x + 4 be written as x^2 + 5x - 4?

    asked by Anonymous
  90. Algebra 1

    The cast of a play consists of 7 males and 5 females. There is 1 male lead role and 1 female lead role. A. In how many different ways can the two lead roles be cast? My answer: 12 ways.. would'nt you add the number of females and males total and because

    asked by Gabs
  91. Algebra 1

    Of the 7 males and 5 females, there are two sets of siblings. One set consists of a brother and sister, and the other set consists of a brother and his 2 sisters. The lead roles are cast randomly. B. What is the probability that a pair of siblings are cast

    asked by Gabs
  92. algebra 1

    There are 8 speaking roles in the play. Of the 8 speaking roles, 5 are for males and 3 are for females. After the 8 speaking roles in the play are cast, the remaining cast members will make up the chorus. C. What is the probability that the set of siblings

    asked by Gabs
  93. chemistry

    TWO IDENTICAL mano METERS ARE FILLED WITH MERCURY. THE mano METERS ARE PLACED IN A CLOSED PRESSURIZED BOX CONTAINING AIR AT 1,000 TORR PRESSURE. ONE manometer CONTAINS GAS a, AND THE OTHER GAS B. WHAT IS THE DIFFERENCE BETWEEN THE PRESSURES OF THE TWO

    asked by PLEASE HELP!!
  94. programming ( qbasic)

    Write a program in qbasic to print the user entered word in reverse order using FUNCTION...END FUNCTION

    asked by Clive
  95. reading paragraph and bar graphs

    Casey said that 40 people were surveyed. Is his answer reasonable? Explain

    asked by Anonymous
  96. Algebra 1 (probability) Help?

    The director decides to add ... n... more females to the cast. D. Write an expression that represents the probability that the set of siblings that consists of a brother and his 2 sisters are all in the chorus. I'm not even sure where to begin with this

    asked by Gabs
  97. French

    Are my French sentences right? Can someone check? Merci. 1.) Il y a une fille qui s'appelle Fama . 2.) Elle est quinze ans . 3.) Elle est (from) Mauritanie . 4.) Elle (goes to) Californie. 5.) Elle vit avec une famille américaine.

    asked by Julie
  98. Chemistry 12

    Hi, I did the acid-base titration lab with HCl and 0.5M NaOH. I need to calculate the moles of NaOH from molarity of NaOH and the average volume used. My English isn't good but is it asking me to find the moles of NaOH using the molarity of NaOH and the

    asked by Kim
  99. math

    0,3,8,15,24 how do i calculate the tenth term

    asked by kem
  100. Math

    PLease explain how to do this Add or Subtract (m^2-m+3)+(m-1)

    asked by Anna
  101. Algebra

    PLEASE SOLVE. 9Y/7 =12(Y-2)

    asked by Rice
  102. geography

    what does the drop in canada's imagration rate have to do with learning about imagration and canada's role in it

    asked by aisha
  103. Math

    how many different ways can 8 people be seated in 3 chairs

    asked by M
  104. Chemistry

    how many grams of butane must be burned in an excess of o2 gas in order to produce 7.64l of co2?

    asked by Arielle
  105. Math

    a news carrier has $7.00 in change he has 8 more quarters than dimes and five times as many nickels than quarters.how many coins of each type does he have ?

    asked by Anonymous
  106. Algebra

    Solve. x+2/8 + 1 = 4x/2

    asked by Dre
  107. Economics

    What are the cost and consequence of providing subsidies and welfare

    asked by Thobiswa
  108. Engineeringscience

    A ball with a mass of 2kg rests on an angle of 10degrees .The ball is to be released to roll down the incline plane, neglecting all friction determine the following,, a the loss in potential energy after it has rolled 12m, b The kinetic energy after it has

    asked by Lucom
  109. English

    you will submit an annotated bibliography. You must include five reliable (good) sources and five unreliable (bad) sources. Each of your ten entries must include the following: An MLA reference. A summary. An evaluation. Is the source reliable or not?

    asked by Gaby
  110. Math help please

    these questions are for practice, they don't count as points, but i don't understand how to solve them.. can someone please explain them to me?? which function rule represents the data in the table below? input|1| 2| 3| 4|5 output|9|15|21|27|33 A)y=4+5x

    asked by UMACBLACKBELT
  111. english

    research skills are fundamental to a. academic writing b. all types of writing c. education, literature, business, and other industries, d. libraries it could be a,b, or c, but i chose b. pleases help

    asked by tim
  112. Dividing Decimals

    8 divided by 0.64 = 1.25? Is that correct?

    asked by Keon
  113. health

    I have to make a research paper on a health topic I picked G-tube. I have 5 websites already. I just don't know how to make the thesis statement. And my 5th website is going to be my experience. So I'm asking how is my thesis statement going to be written

    asked by crissy
  114. science

    electric charges that are different A. attract each other B. Repeal each other C. exist in pair D. DO not interact

    asked by briana
  115. Math

    For the depth of water on Friday, 16 January 1998, the periodic function is: y = 1.05 sin 2pix/11.72 + 1.55 1.05 is the 'a' value 2pi/11.72 is the 'b' value 1.55 is the 'd' value we were told not to take into consideration the 'c' value in our equation 'y'

    asked by Madi
  116. economic

    what is south african government providing for whom ? what are the cost and consequences of providing the subsidies and welfare?

    asked by sipho