Questions Asked on
November 21, 2009

  1. physics

    It has been suggested that rotating cylinders about 12 mi long and 5.4 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall

    asked by jb
  2. physics

    What is the tangential acceleration of a bug on the rim of a 12.0 in. diameter disk if the disk moves from rest to an angular speed of 75 rev/min in 4.0 s?

    asked by lynette
  3. Calc

    how do I integrate x^4-3y^3+2y^2? thanks

    asked by Rose
  4. College Math II

    a^4 - ab^3 = I have asked this question on many web sites and still cannot find the steps on how to solve this problem. Can you please help.

    asked by Lori
  5. Algebra 2

    Find the last digit in 39999. I can not figure this one out. Can some one explain this

    asked by Kim
  6. Algebra 2

    Find a positive integer smaller than 500 that has a remainder of 3 when divided by 5, a remainder of 6 when divided by 9, and a remainder of 8 when divided by 11.

    asked by Kim
  7. Music

    I need to kown all 8 letters music instruments name.

    asked by Thamizh
  8. math

    1. (1 pt) Let g(y) = 8y2 + 13y + 5. A function f is known to be continuous on ( −∞, ∞), to satisfy g ◦ f (x) = 0 for all real x and it is known that the value f (8) is not equal to −1. You have enough information to determine f precisely.

    asked by Mickey
  9. spanish

    We sing a song entitled He drinks tequila,and she talks dirty in spanish ^ there are a couple of phrases that I don't know the meaning of could you help please. the first is "a brasa mi puerta" The second is "to dal ay nochay" I hope this is not offensive

    asked by Mike
  10. HCA 220

    summarize the processes of digestion, respiration, and circulation and how are they interrelated

    asked by linda
  11. sociology

    is it difficult to accurately measure prejudice?

    asked by kris
  12. English

    1. It can give you happiness when you give happiness to others. (What does 'it' refer to in this sentence? What functions does 'it' have?") 2. Volunteer work is not something that you must do. 3. Volunteer work is not anything that you must do. (Are both

    asked by rfvv
  13. English

    1. Doctors Without Borders help many sick people in poor countries. 2. Doctors Without Borders helps many sick people in poor countries. (Do I have to use 'help' or' helps'? Which one is correct?)

    asked by rfvv
  14. AP World History

    How do I structure a DBQ essay in the body paragraphs?

    asked by Bon'Quisha
  15. sat

    the bus would not have had to take the A long detour instead of the main B highway if the bridge did not become C treacherous in the aftermath of an ice D storm. why is C wrong? thanks so much !

    asked by jessica
  16. criminal justice

    a 700- to 1,050-word essay in APA format on the qualities of effectiveness versus ineffectiveness of judges. In your essay o Describe the responsibilities of judges. o Identify attributes of both effective and ineffective judges. o Provide an example of an

    asked by Anonymous
  17. Ms Sue geography

    sorry to ask again for help but i need to include a graph in my report about the turkish earthquake but i can`t think what graph to do. it needs to show relevant information i was going to do a graph about how many people died but i don`t know if that

    asked by astelle
  18. education

    what is book keeping in educational management give me articles on physical plant planning in educational management

    asked by Tosin osemeobo
  19. Maths

    keep getting stuck for integrate e^(bx) cos x i get = cos x e^bx/b - int -sin x e^bx/b = cos x e^bx/b - -sin x e^bx/b^2 - int - cos x e^bx/b^2 this is where i get stuck please help

    asked by Amelia
  20. dynamath

    TRUNK AND TAILS bella the dog weighs 72 pounds. that's ABOUT 8628 pounds less than tarra weighs. how much does tarra weigh? i think the answer is 8556 or 8030.

    asked by Anonymous
  21. sat essay

    assignment:should people always prefer new things, ideas, or values to those of the past? Should people always prefer new thing to the old? Many people argue that we should not accept the new easily and should sick to the old. As far as I am concerned, we

    asked by Mercedes
  22. physics

    a uniform disk and a uniform sphere are rolled down an incline plane from the same point and intially they are at rest. Find the difference in time they arrive at a mark on the plane which is 6 meters from the starting point. The sphere has twice the mass

    asked by jeff
  23. physics

    a uniform disk and a uniform sphere are rolled down an incline plane from the same point and intially they are at rest. Find the difference in time they arrive at a mark on the plane which is 6 meters from the starting point. The sphere has twice the mass

    asked by jeff
  24. physics

    A children's merry-go-round in a park consists of a uniform 200kg disk rotating about a vertical axis. the radius of the disk is 6 m and a 100kg man is standing on the outer edge when the disk is rotating at a speed of 0.20rev/s. how fast will the disk be

    asked by jeff
  25. gr 12. advanced functions

    Trig identity Prove: cos2x tan(pie/4 - x) ------- = 1 + sin2x

    asked by avm
  26. College Math II

    _m^2 -1___ * _2m -2____ = (m – 1)^2 3m + 3 Actually my computer won't allow the line and these are like fractions. m^2 - 1/(m-1)^2 * 2m - 2/3m +3 = I am having a problem trying to follow the steps to show my work and come out with the correct answer.

    asked by Lori
  27. College Math II

    x/x – 1 - 3/x = 1/2 I am not sure how to solve this equation and show my work. My problem just says to solve the equation. Thanks.

    asked by Lori
  28. College Math II

    x/x – 1 - 3/x = 1/4 My problem says to show the work and to solve the equation. I am not sure how to use the steps to show my work and answer the problem. Thanks.

    asked by Lori
  29. math

    Bob has three sacks of apples and three more apples in his pocket. Each sack contains the same number of apples. Altogether, Bob has 33 apples. How many apples are in each sack? Solve with a Linear Equation is this right 3x+3=33 3x=30 30/3=10 x-5=10

    asked by marie
  30. average math

    TRUNK AND TAILS bella the dog weighs 72 pounds. that's ABOUT 8628 pounds less than tarra weighs. how much does tarra weigh? i think the answer is 8530.

    asked by bolt
  31. Math

    Bert is 11 kilometers away from Brenda. Both begin to walk toward each other at the same time. Bert walks at 4 kilometers per hour. They will meet in 2 hours. How fast is Brenda walking?

    asked by Jenny
  32. College Math II

    (4 + sqrt(3)^2 = I am not sure how to follow the steps to come up with the answer. Can someone help me understand the steps. Thanks.

    asked by Lori
  33. college

    The 2.kg mass is heading toward a ramp-there’s no friction. Notice that at the top right there is a relaxed spring. The spring constant is 50 N/m. Calculate the maximum compression of the spring after the mass has risen up the ramp and hit the spring.

    asked by maggie
  34. physics

    The 2.kg mass is heading toward a ramp-there’s no friction. Notice that at the top right there is a relaxed spring. The spring constant is 50 N/m. Calculate the maximum compression of the spring after the mass has risen up the ramp and hit the spring.

    asked by maggie
  35. For Writeacher

    I saw your post this morning, for my question last night..thank you so much!! =D -MC

    asked by mysterychicken
  36. College Math II

    Rationalize the denominator and simplify. sqrt(6)/4srqrt(3) + sqrt(2) = I cannot figure out how to do this and simplify. Can someone help me. Thanks.

    asked by Lori
  37. College Math II

    Solve by using the quadratic formula. x^2 + 6x + 6 = 0 I am having problems using the quadratic formula to get the right answer. Can someone show me the steps that I use? Thanks.

    asked by Lori
  38. College Math II

    Solve by any method. x(x + 1) = 12 I am not sure what method to use to show my work and figure out the answer. Can someone help me understand this problem. Thanks.

    asked by Lori
  39. College Math II

    Solve by any method. a^4 – 5a^2 + 4 = 0 I am having problems figuring out what method to use to solve this problem. I need to show my steps and I am not sure how to do this. Can someone help? Thanks.

    asked by Lori
  40. College Math II

    If a ball is tossed into the air from a height of 6 feet with a velocity of 32 feet per second, then its altitude at time t (in seconds) can be described by the function A(t) = - 16t^2 + 32t + 6. Find the altitude of the ball at 2 seconds. I am having

    asked by Lori
  41. College Math II

    Show a complete solution to each problem. Find the exact length of the side of a square whose diagonal is 3 feet. I am having problems understanding how you figure out this problem. Can someone help me? Thanks.

    asked by Lori
  42. College Math II

    Write a complete solution to each problem. If the length of a rectangle is 3 feet longer than the width and the diagonal I s 15 feet, then what are the length and width? I do not understand how to solve this problem. Can someone help me? Thanks.

    asked by Lori
  43. College Math II

    Solve each problem. Find the quotient and remainder when x^2 – 5x + 9 is divided by x – 3. I don't understand how to divide and solve this problem. Can someone help me understand the steps on how to do it. Thanks.

    asked by Lori
  44. College Math II

    Solve the problem. If a manufacturer charges q dollars each for footballs, then he can sell 3000 – 150q footballs per week. Find the polynomial R(q) that represents the revenue for one week. Find the weekly revenue if the price is $8 for each football. I

    asked by Lori
  45. Geography

    29. Which of the following statements best describes New Zealand's physical landscape? a. the South Island is predominantly flat, while the North Island is covered mostly with elevated plains b. New Zealand's terrain is mostly mountainous, with gentle

    asked by mysterychicken
  46. Probability

    The serial number on a $10 bill contains eight non-zero digits. If your $10 bill contains the digit 7 at least once, you win a prize. The probability that your $10 bill will be a prize-winning bill is what?

    asked by Anna
  47. health care

    Write a 350- to 700-word paper in APA format describing two approaches or indicators to measuring patient outcomes. Measuring the quality of care is essential to being able to identify which areas of patient care need improvement. A positive patient

    asked by towanda
  48. Creative Writing

    Here is my intro (that bobpursley checked yesterday), and my first body paragraph (that needs to be checked now) : What is wisdom? Is it in the stories that Grandfather told me, or is it in what I achieved from schooling? The reality is, wisdom is not

    asked by y912f
  49. physics

    A 4.0 kg particle is moving along the x axis to the left with a velocity of v= -12.0 m/s. Suddenly, between times t =0 and t = 4.0 x a net force = 3t^2 – 12t is applied to the particle, where F is in N and t is in s. Calculate the velocity of the

    asked by maggie
  50. Geography

    Which of these cities is not located about 55 degrees N latitude and has the largest population? Tbilisi, Georgia Minsk, Belarus Kiev and Odessa, Ukraine Thanks -MC

    asked by mysterychicken
  51. math

    1 ms = ? s 1 mile second = ??? second

    asked by Mota
  52. physics

    A mass of 1.1 kg is attached to two cords. The cords are each an angle 30 degrees above and below the horizontal, The mass circles around the vertical pole at a fixed speed of 15 m/s in a circle of radius 0.50 m. How do I calculate the magnitude of the net

    asked by maggie
  53. physics

    A spring-loaded dart gun is used to shoot a dart straight up into the air, and the dart reaches a maximum height of 12 meters. If the spring is compressed only half as far the second time, how far up does the dart go this time (no friction and using

    asked by jon
  54. art

    I have homework in art where, every week, I must look up an art definition, describe it, and draw a picture with it. I was wondering what the following words mean and/or where I could find pictures: Sfumato, Composite, Anthropomorphism, Tactile, Garish,

    asked by Gabrielle
  55. physics

    The potential energy of a particle on the x-axis is given by U= 8xe ^-x ^2/19 where x is 1 meter and U is in Joules. Can you explain for me how to find the point on the x-axis for which the potential is a maximum or minimum and is this answer a point of

    asked by jon
  56. Physics

    At what temperature is the rms speed of helium molecules half its value at STP (0 C}, 1.0 atm)?

    asked by ana
  57. english

    i'm having trouble with coming up with a topic sentence about death.

    asked by reya
  58. algebra

    parallel to line 2/3x-4=0 through (-4,-6)

    asked by tom
  59. Business

    What makes some companies more profitable than the others

    asked by Mary
  60. 11th grade

    how do i solve this thermochemical equation? and what r the steps to it 1. Find the heat of reaction for the following equation. N2(g) + 2 O2(g) -> N2O4(g) given the following steps 2NO2(g) -> N2(g)+ 2O2(g) delta H=-84.8 kj N2O4(g)-> 2NO2(g) delta H= 72.8

    asked by dawson
  61. Finance

    I need some help with an assignment that I am working on for Introduction to Finance class.

    asked by TinkRose
  62. Finance

    I need some help with an assignment that I am working on for Introduction to Finance class. Here is the questions: The Landis Corporation had 2008 sales of $100 million. The balance sheet items that vary directly with sales and the profit margin are as

    asked by TinkRose
  63. 12th grade

    Can someone look over my admissions essay for Brown?

    asked by Daniel
  64. Geography

    47. Following the breakup of the Soviet Union, what are some of the major problems faced by many of the new countries? Firstly, many of the new countries didn’t know how to become democratic. The people weren’t used to voting and being given a choice

    asked by mysterychicken
  65. Science

    how do you draw a the amino acid Phenylalanine? thanks:)

    asked by Rebekah
  66. chemistry

    Will tetrahedral [ZnABCD]2+ display optical isomerism?

    asked by rose
  67. health

    Compose an essay that answers the following questions: What arguments are being raised by the Grocery Manufacturers of America? Are they taking responsibility as contributors to the obesity epidemic? If yes, list them. If not, why not? Are they

    asked by amber
  68. Geography

    I need help writing an essay on this- What role has nationalism played in the life of Russia in the past and present? Thanks -MC

    asked by mysterychicken
  69. 12th grade

    which of the following proofread's mark is incorrect

    asked by Anonymous
  70. history

    what is the republican view on the war in iraq

    asked by melissa
  71. Literature

    I have to write an expository essay interpreting a peice of art from my textbook. I chose the painting The Grinder(1924) by Diego Rivero. Need help filling this out: Elements of Art: ? Subject Matter- A girl is grinding something. Lines and Shapes- ?

    asked by mysterychicken
  72. math

    if the 7th day of the month is on a tuesday on what day is the 25th

    asked by Anonymous
  73. 5th grade

    how do i do a question like x(x-4)=0 using the zero product rule?

    asked by katherine
  74. 7th grade math

    How do I figure: ?/8 = 15/? = 24/32

    asked by john
  75. history

    republican veiw on the iraq war

    asked by melissa
  76. 4th grade

    MY DAUGTHER WILL BE 10 YEARS NEXT WEEK AND THE HOMEWORK SAID: A NORMAL PERSON BLINKS ABOUT 25 TIMES PER MINUTE WHEN AWAKE. A) HOW OLD WILL YOU BE ON YOUR NEXT BIRTHDAY; B) TO THE NEAREST MILLION, HOW MANY TIMES WILL YOU HAVE BLINKED ON YOUR NEXT BIRTHDAY?.

    asked by VIVI
  77. math

    Thomas is playing Tic-Tac-Toe with a computer. It is the computer's turn to place an "x" on the board. If the computer makes its moves at random in the open spaces, what is the chance it will win on this move?

    asked by VIVI
  78. math

    Roberto ate 3 pieces of a pizza and them felt that he should pay 1/4 of the cost because that's the fraction he ate. How many pieces was the pizza cut into?

    asked by VIVI
  79. math

    Century is to decade as dollar is to: (a) penny (b) nickel (c) dime (d) quater

    asked by barbie
  80. math

    Century is to decade as dollar is to: (a) penny (b) nickel (c) dime (d) quater

    asked by barbie
  81. math

    Roberto ate 3 pieces of a pizza and them felt that he should pay 1/4 of the cost because that's the fraction he ate. How many pieces was the pizza cut into?

    asked by VIVI
  82. Physics

    Two astronauts, one of mass 61 kg and the other 82 kg, are initially at rest in outer space. They then push each other apart. How far apart are they when the lighter astronaut has moved 12 m?

    asked by Anonymous
  83. Math

    What are the roots of x^2+3x+1? I'm kinda confused on the definition of roots...help please?

    asked by Anonymous
  84. Movie review

    I have to write a review of a film or play I've seen and I chose "Law Abiding Citizen" I need help (the theme isn't really a theme, its the plot but I can't really come up with a theme.) Could this be it? A man seeks revenge on the justice system for not

    asked by Anonymous
  85. Algebra

    Please help. I have tried many times to come up with something after reading the material but I am completely stumped. A cubic container, with sides of length, x inches, has a volume equal to x^3 cubic inches. The height of the container was decreased and

    asked by Alaina
  86. Microeconomics

    Quantity Total Cost (Dollars) Variable Cost (Dollars) 0 $1,000 $0 100 1,360 360 200 1,560 560 300 1,960 960 400 2,760 1,760 500 4,000 3,000 600 5,800 4,800 Table 11-1 shows the short-run cost data of a perfectly competitive firm that produces plastic

    asked by Taneja
  87. French

    could you check this please Directions: Write an 8-10 sentence paragraph about your morning routine written in passé compose. The paragraph should include the following: a. 8 activities b. At least three transitional words such as d'abord, ensuite, puis,

    asked by Jasmine
  88. Physics

    A 9000 kg boxcar traveling at 17.0 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 6.5 m/s. What is the mass of the second car?

    asked by Anonymous
  89. French

    could you check this also Directions: Use a graphic organizer that shows the order in which you do your morning routine. All activities should be in the infinitive form. For example, the first activity would be "se reveiller" because you wake up before you

    asked by Jasmine
  90. Math

    Please help if you can. If a ball is shot projected straight upward at a rate of 64 feet per second from a rooftop, 80 feet above ground level, the height of feet above ground is modeled by the equation, h(t)=-16t^2+64t+80 Find h(0), h(1),h(2) Use the

    asked by A.J.
  91. Math

    Molly’s age is twice Anita’s. If the sum of the squares of their ages is 80, then Translate these words into an algebraic equation to determine their ages?

    asked by Karla
  92. Algebra

    Can someone please assist me. Thanks One side of a rectangular stage is 4 ft longer than the other and the diagonal is 20ft. Use the Pythagorean Theorem to determine the lengths of the sides.

    asked by Quinton
  93. Math

    The perimeter of a rectangle is 34 feet and the area measures 60 square feet. What are the length and width of the rectangle? (Hint: Use the equations : perimeter = times the sum of the length and the width area = length times width)

    asked by Zach
  94. latin

    Can someone tell me if my translation is correct? I have to write a short children's story. Here is what I have written so far: Rufus habitaret in Romam. Is es novem annos vetus. !@#$%^& ortus, gerebat bulla. Bulla defenderet is de malum.

    asked by anonymous
  95. critical thinking

    Select a topic of interest and explain how you would come up with a reliable sample for obtaining peoples’ opinions.

    asked by angel
  96. physics

    A small particle of mass 2.0 x 10^-19 kg is attached to a string of relaxed length 0.50 nm .The string is the black horizontal line attached to a an immovable wall on the left. The plot is a graph of the force needed to stretch the string by pulling to the

    asked by maggie
  97. communications

    Does anybody know what an eletronic version of a print ad is? I have an idea, but I am not sure if I am correct

    asked by sally
  98. physics

    A 2000 kg space probe is moving rightward in empty space along the x axis at 12 m/s. One of the probe’s rockets is fired providing a thrust of 1800j N along the y axis. The rocket fires for 1.5 s. How can I derive the equation for the trajectory of the

    asked by maggie
  99. physics

    A 2kg mass is released from rest and slides down an inclined plane of 60 degrees a distance of 1 eter. It strikes a 250 N/m spring. What is the maximum compression of a spring?

    asked by jon
  100. English(literature)

    What citations from the Catcher in the Rye show Holden Caulfield has sympathy toward the less fortunate?

    asked by JEFF BOMB
  101. physics

    A string is hanging from the rearview mirror of you car and a ball is at the end of this string. Suppose that your drive around a circular track at fixed speed. Which list below gives all the forces that act on the ball? A) tension and the force of gravity

    asked by jon
  102. SraJMcGin plz read

    Please read where I wrote the paragraph. Thanks so much!

    asked by Jasmine
  103. physics

    In order to move a heavy object you must push against it with a larger force than it pushes on you. Is this true or false?

    asked by maggie
  104. physics

    An object in the vacuum of space orbits the earth at a fixed speed in a circular orbit several hundred miles above the earth. What can we conclude about the reaction force? a) That there is no reaction force-the net force on the object is zero, so the

    asked by maggie
  105. AP Chemistry

    Will a non-volatile solute always lower the vapor pressure of the pure solvent in solution? Why or why not?

    asked by Anonymous
  106. Physics

    We study water of 1.0 g/cm3 density in an open container with its surface exposed to the atmosphere. If we measure the pressure first at a depth d and find the value p1, and then at twice that depth to find p2, the two results are related in this form: a)

    asked by Nikita
  107. Physics

    A 9000 kg boxcar traveling at 17.0 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 6.5 m/s. What is the mass of the second car?

    asked by Anonymous
  108. Social Studies

    who got the nobel peace prize before barack obama

    asked by RIFA
  109. math

    Find the nth term of the geometric sequence whose initial term is 7 and common ration is 7. (your answer must be a function of n)

    asked by Anonymous
  110. physics

    Two vehicles with the same mass collide and lock together traveling 28 m/s at 37 degrees north of east after the collision. How fast was the car traveling that was heading north while the other vehicle was traveling east?

    asked by Josh
  111. physics

    Is it true or false that when a baseball player hits a home room, the baseball received a greater impulse from the bat than the bat did from the ball?

    asked by Josh
  112. math

    Find the nth term of the geometric sequence whose initial term is 7 and common ration is 7.(Your answer must be a function of n.)

    asked by Anonymous
  113. physics

    If a mass attached to the center of a vertical circle swings around at a fixed speed (v) and gravity pulls straight downward, would the tensions in the rope attached to the mass be different at the top of the circle, straight down to bottom of circle, and

    asked by Josh
  114. Chemistry

    Given that the solubility of sodium chloride is 36 grams per 100 grams of water. Which of the following solutions would be considered supersaturated? A. dissolve 5.8 moles of NaCl in 1 L of water B. dissolve 1.85 moles of NaCl in 300 ml of water C.

    asked by Coug
  115. physics

    How can I calculate the tension in the two cords that are labeled A and B in a two mass system? Cord A is on top with a 1 kg mass attached and Cord B connects this mass to a 2 kg mass. The two mass system accelerates directly upward at 2m/s^2.

    asked by Josh
  116. college

    Environmental Factors Contribute to Juvenile Crime and Violence. Delbert S. Elliott. Opposing Viewpoints: Juvenile Crime. Ed. A.E. Sadler. San Diego: Greenhaven Press, 1997. My paper is asking for the title and citation. Would I include all of the above?

    asked by Tracy
  117. Physics

    A tow truck is pulling a car out of a ditch by means of a steel cable that is 10.2 m long and has a radius of 0.50 cm. When the car just begins to move, the tension in the cable is 870 N. How much has the cable stretched? COnstant for Steel cable Y=2.0e11

    asked by Linds
  118. Calculus

    [Integrals] h(x)= -4 to sin(x) (cos(t^5)+t)dt h'(x)=?

    asked by Z32
  119. stats

    Ok, so in a game of Texas Hold 'Em you have two hearts in your hand. The next two cards places are both hearts, but the third one is a spade. What are the odds that by the end of the round you will have a Flush (5 of same suit). I've asked someone else and

    asked by vernita
  120. English

    Can you please check the grammar in the sentence thank you. Another Country begins with Rufus walking the streets of Seventh Avenue, hungry, broke, and having nowhere to go until he makes his way to a jazz bar.

    asked by Lola
  121. physics

    Is it true or false that momentum is conserved when total mechanical energy is conserved?

    asked by Maggie
  122. American National Government

    Why is the judicial branch a non-parisan body? I know that the judicial branch has independent power but that is really all that I know. Could someone please help me? Thanks.

    asked by B.B.
  123. geometry

    if QR=3x and RS=x+12, then x=?

    asked by moises
  124. science

    how is Dna copied?

    asked by alice
  125. science

    compare and contrast mitosis and cell divison

    asked by alice
  126. Anatomy and Physiology I

    the blood-brain barrier is effective against, what

    asked by Audrea
  127. Dividing Rational Expressions

    x^3-8/x^2-4 divided by (x^2+2x+4)/(x^3+8). This becomes ((x-2)(x^2+2x+4)/(x+2)(x-2) times ((x+2)(x^2-2x+4))/(x^2+2x+4). I understand that (x-2)(x^2+2x+4)=(x^3-8) when I distribute it, however, if I didn't have the help of my book, I'd have no clue how to

    asked by Jaz
  128. math

    HELP PLEASE!!! ESPECIALLY PART 2 2. The following questions do not require the data above. Answer with the data given in each question. i. There is a total of approximately 12.4 billion acres of agricultural land (cropland, rangeland, irrigated land) on

    asked by ScienceConfusion
  129. physics

    A ball is thrown up in the air with an initial speed of V. If the air exerts a constant frictional force F on the ball, show that H = (V^2) / 2(g+F/m)

    asked by sandhya
  130. corrections

    response describing a sociological aspect of prison life. This may include the subculture of prisons,including violence, sex, gangs, death, and language, or the social organization of prison, such as demograhics, relationships, social groups, social

    asked by Dolores
  131. Physic

    31m/s is a typical highway speed for a car. At what temperature do the molecules of nitrogen gas have an rms speed of 31 m/s? (Answer in K)

    asked by ana
  132. Physic

    7.7 mol of helium are in a 16 {\rm L} cylinder. The pressure gauge on the cylinder reads 65psi. What are (a) the temperature of the gas in Celsius and (b) the average kinetic energy of a helium atom?

    asked by ana
  133. math

    ?/8 = 15/? = 24/32

    asked by john
  134. medical terminology

    according to the article reduce abbreviation errors do you think enough steps have been taken to reduce errors explain why you agree or disagree

    asked by mary
  135. Maths

    Differentiate y=(5x-2)^3(3-x)^6 using the product rule. i don't get the step where they find the common factor could you help me by doing it step by step please ? thank you!

    asked by Karoline
  136. Businrss Finance

    Return on operating assets = 25% Operating asset turnover = 5 times Operating assets = $20 million Degree of operating leverage = 4 times How to slove?

    asked by P. Brown
  137. physics

    You push a 45 kg wooden box across a wooden floor at a constant speed of 1.0 m/s. The coefficient of kinetic friction is 0.15. Now you double the force on the box. How long would it take for the velocity of the crate to double to 2.0 m/s?

    asked by christina
  138. hea;th care

    I am writing a essay on EMR and can not find The adoption period for EMR. I know it is a growing process but would like to know how long it takes ot first set it up in an organization. Can anyone help?

    asked by april
  139. Chemistry

    What is the final concentration (M) of a solution prepared by diluting 50.0 mL of a 6.00 M KCl solution to a volume of 0.500 L? A. 1.67 B. 0.600 C. 0.0167 D. 3.0 E. none of these My initial thought was to take the 6.00 M KCl/0.500 L, for an answer of 12.

    asked by Coug
  140. Algebra

    -18 is less than or equal to 4x-7 is less than or equal to -6 (Please explain in detail so I know for the future)

    asked by LeAnn/I need help please
  141. science

    (Points: 10) For the following: i) HClO4 > HBrO4 > HIO4 ii) NH3 > PH3 > AsH3 > SbH3 iii) HOClO3 > HOClO2 > HOClO > HOCl iv) HBr>HCl>HF The order of acidity is correct for which series? 1. ) all are correct 2. ) ii and iii 3. ) ii and iv 4. ) ii 5. ) i,

    asked by victor
  142. science

    What method is use to determine the location of protein synthesis?

    asked by shirui
  143. business

    Computation of Present Value) Using the appropriate interest table, compute the present values of the following periodic amounts due at the end of the designated periods. $30,000 payable at the end of the seventh, eighth, ninth, and tenth periods at 12%.

    asked by Dale
  144. math

    Roberto ate 3 pieces of a pizza and them felt that he should pay 1/4 of the cost because that's the fraction he ate. How many pieces was the pizza cut into? Please could you explain me the problem and you give me the answer? thank you

    asked by LILI
  145. math

    MY DAUGTHER WILL BE 10 YEARS NEXT WEEK AND THE HOMEWORK SAID: A NORMAL PERSON BLINKS ABOUT 25 TIMES PER MINUTE WHEN AWAKE. A) HOW OLD WILL YOU BE ON YOUR NEXT BIRTHDAY; B) TO THE NEAREST MILLION, HOW MANY TIMES WILL YOU HAVE BLINKED ON YOUR NEXT BIRTHDAY?.

    asked by LILI
  146. Math 116

    Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40mph and Train B at 50mph. Train A passes a station at 9:20 am. If train B passes the same station at 9:32 am, at what time will train B catch up to train A?

    asked by TracyAnn