Questions Asked on
July 18, 2013

  1. physics

    The greatest ocean depths on earth are found in the Marianas Trench near the Philippines, where the depth of the bottom of the trench is about 11.0 km. Calculate the pressure(atm)due to the ocean at a depth of 10.1 km, assuming sea water density is

    asked by Alice
  2. HELP

    A volume of 18.0 L contains a mixture of 0.250 mole N2 , 0.250 mole O2 , and an unknown quantity of He. The temperature of the mixture is 0 ∘C , and the total pressure is 1.00 atm . How many grams of helium are present in the gas mixture?

    asked by Anonymous
  3. physics

    A 2.60 kg steel gas can holds 15.0 L of gasoline when full. What is the average density(kg/m^3)of the full gas can, taking into account the volume occupied by steel as well as by gasoline?

    asked by Alice
  4. Chem 2

    At 25 °C only 0.0570 mol of the generic salt AB is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C?

    asked by Brianna
  5. physics

    Assume that the left side of your heart creates a pressure of 114 mm Hg by exerting a force directly on the blood over an effective area of 16.0 cm2. What force does it exert to accomplish this?

    asked by Amy
  6. Local Standards And Regulations

    Sunny Smiles Day Care Center is organized as a partnership. Which one of the following business tax forms will the owners need to file 75 days after the close of the fiscal year? A. Form 990 B. Schedule C C. Form 1065 D. Form 1120 My answer is (A) can

    asked by Brenna
  7. physics

    The greatest ocean depths on earth are found in the Marianas Trench near the Philippines, where the depth of the bottom of the trench is about 11.0 km. Calculate the pressure due to the ocean at a depth of 10.1 km, assuming sea water density is constant

    asked by Amy
  8. chemistry please help

    What is the volume in liters of 5.0moles methane gas, CH4, at 20∘C and 1.40atm ?

    asked by Anonymous
  9. physics

    A 1.80 m radius playground merry-go-round has a mass of 120 kg and is rotating with an angular velocity of 0.300 rev/s. What is its angular velocity after a 19.0 kg child gets onto it by grabbing its outer edge? The child is initially at rest.

    asked by Eric
  10. physics

    A rectangular gasoline tank can hold 44.0 kg of gasoline when full. What is the depth of the tank if it is 0.400 m wide by 0.900 m long?

    asked by Amy
  11. Physics

    Two particles with charges +8e and -8e are initially very far apart (effectively an infinite distance apart). They are then fixed at positions that are 7.07 x 10-12 m apart. What is EPEfinal - EPEinitial, which is the change in the electric potential

    asked by Corinne
  12. chem PLEASE HELP

    A Nitrox II gas mixture for scuba diving contains oxygen gas at 50atm and nitrogen gas at 98atm . What is the total pressure, in atm, of the scuba gas mixture?

    asked by Anonymous
  13. Trigonometry

    The diameter of the wheel is 165 feet, it rotates at 1.5 revolutions per minute, and the bottom of the wheel is 9 feet above the ground. Find an equation that gives a passenger's height above the ground at any time t during the ride. Assume the passenger

    asked by Anonymous
  14. physics

    A 1.80 m radius playground merry-go-round has a mass of 120 kg and is rotating with an angular velocity of 0.300 rev/s. What is its angular velocity(rev/s)after a 22.0 kg child gets onto it by grabbing its outer edge? The child is initially at rest.

    asked by Mary
  15. MATH

    A Ferris wheel completes one revolution every 90 s. The cars reach a maximum of 55 m above the ground and a minimum of 5 m above the ground. The height, h, in metres, above the ground can be modeled using a sine function, where t represents time, in

    asked by ROBIN
  16. physics

    A 1.80 m radius playground merry-go-round has a mass of 120 kg and is rotating with an angular velocity of 0.600 rev/s. What is its angular velocity after a 27.0 kg child gets onto it by grabbing its outer edge? The child is initially at rest.

    asked by Wendy
  17. American Government

    Give an overview of the African American struggle for civil rights since the Civil War. In particular, give 2- mechanisms that were used in the South to withhold civil rights from African Americans. What did African Americans do to overcome these

    asked by Anonymous
  18. chemistry

    Calculate the molarity of a sodium hydroxide solution if 10.42 mL of this solution are needed to neutralize 25.00 mL of 0.2043 M oxalic acid. how do you do the working out

    asked by Anonymous
  19. chem 2

    A buffer solution is made using a weak acid, HA. If the pH of the buffer is 1.0 × 101 and the ratio of A– to HA is 10, what is the pKa of HA?

    asked by Brianna
  20. college statistics

    I am having a bit of trouble with the top half of the questions. I have an answer below for questions 5-10, is there anyway you can check those answers and help me with the rest I am having trouble with. Thank you. 1. The area to the right of 1.93 under

    asked by penelope
  21. UIC

    Calculate pCd2 at each of the following points in the titration of 55.00 mL of 0.0020 M Cd2 with 0.0020 M EDTA in the presence of the auxiliary complexing agent NH3. The solution is buffered at a pH of 11.00. Take the NH3 concentration to be a constant

    asked by achut
  22. Trigonometry

    My answer: Y= -82.5 cos (4pi/3)x+91.5 (Period: 1.5=2pi/b --> b= 4pi/3 ) The diameter of the wheel is 165 feet, it rotates at 1.5 revolutions per minute, and the bottom of the wheel is 9 feet above the ground. Find an equation that gives a passenger's

    asked by Anonymous
  23. chemistry

    2. If the accepted enthalpy change value for the dissolving of sodium hydroxide in water is −44.2 kilojoules per mole, determine the percent error of the experimental value that you calculated in Part I. Show your work. (experimental - actual value) /

    asked by yuppp
  24. Calculus

    Find the complete solution to the 2nd ODE: 2y''+3y'+y=t^(2)+3sin(t)

    asked by Sara
  25. Calculus-HELP PLZ !!!!

    Find the complete general solution to the second order DE: 4y'' - 9y = 0

    asked by Elyse
  26. Chemistry HW HELP

    A 22.0g sample of krypton has a temperature of 21∘C at 585mmHg . What is the volume, in milliliters, of the krypton gas?

    asked by Anonymous
  27. math

    ken and mark have some ducks and pigs. when asked how many ducks and pigs they had altogether mark said there is a total of 17 heads and 42 feet. I have 3 times as many ducks as pigs. yes replied ken and we both have the same number of pigs. how many ducks

    asked by lynnie
  28. physics

    A 2.60 kg steel gas can holds 15.0 L of gasoline when full. What is the average density of the full gas can, taking into account the volume occupied by steel as well as by gasoline?

    asked by Alice
  29. Math

    The third term of a geometric series is 24 and the fourth term is 36. Determine the first term and common ratio.

    asked by Tom
  30. physics

    A 2.60 kg steel gas can holds 15.0 L of gasoline when full. What is the average density of the full gas can, taking into account the volume occupied by steel as well as by gasoline?

    asked by Charlie
  31. math

    Q1: If K=In a -In b +In c -t/bc,show that K=(ac/b)e^(-t/bc). Q2:Express log(8)5 in terms of m ,where m=lg 2 Q3:Given that log (4)3 =a and log(4)5 =b ,express log(75)16 in terms of a and/or b . really don't know how to do these qns..please help ! thanks a

    asked by Kris
  32. physics

    A 33.5 kg block m1 is on a horizontal surface, connected to a 6.50 kg block m2 by a massless string. The pulley is massless and frictionless. A force of 213.7 N acts on m1 at an angle of 33.7o. The coefficient of kinetic friction between m1 and the surface

    asked by Mary
  33. American Government

    Explain who the Federalists and Anti-Federalists were, then compare and contrast their views on the following issues: human nature, the proper scale of government, the nature of representation, separation of powers/checks and balances, the purpose of

    asked by Anonymous
  34. trig

    each wheel of a bicycle is of radius is 1.1 ft. if the wheels are making 4 revoultions per second how fast is the bicycle moving

    asked by vanessa
  35. chemistry

    If a student added 42.6 grams of sodium sulfite to 780.4 grams of water and determined that 3.40 grams of the new solution occupied 3.20ml, what is the weight percent, molality, and molarity of the solution produced?

    asked by Sumaiyah
  36. econmics

    Topic is medical care for the aging population. My question is cutting cost through educational programs with solutions for the aging population? Help

    asked by sue
  37. physics

    Consider a beam as shown in the figure that is 2 m long and supported by a rope. It is pressed against the wall. There is no friction between the wall and the beam. If the beam has a mass of 2 kg and a sign with a mass of 10 kg is hung off of the end of

    asked by Anonymous
  38. math

    evaluate without using a calculator [log(5)4 x log(2)10 ]/ [log(25)√10]

    asked by Kris
  39. college statistics

    I am having a bit of trouble with some of the questions. Some of the ones I put below have an answer, is there anyway you can check the answer and help me with the rest I am having trouble with. Your sociology teacher claims that 60 percent of American

    asked by penelope
  40. calculus

    The area bounded by the curve 2y^2=x and the line 4y=x is rotated around the y-axis. The volume of the resulting structure can be expressed as V=a/bπ, where a and b are coprime positive integers. What is the value of a+b?

    asked by andy
  41. math

    1.)simplified 2x^4y/6xy^2 I got 1x4y? 2.)(8x^2)(-3x^y) 18x^4y right? I ddnt know what to do with the y

    asked by johnathan
  42. physics

    A 2.60 kg steel gas can holds 15.0 L of gasoline when full. What is the average density of the full gas can, taking into account the volume occupied by steel as well as by gasoline?

    asked by Amada
  43. trig

    tan(7π/4) + tan(5π/4) Does this = 0

    asked by tony
  44. physics

    A 2.60 kg steel gas can holds 15.0 L of gasoline when full. What is the average density of the full gas can, taking into account the volume occupied by steel as well as by gasoline?

    asked by Alice
  45. help chem

    A 0.236g sample of carbon dioxide, CO2, has a volume of 595mL and a pressure of 455mmHg . What is the temperature, in kelvins and degrees Celsius, of the gas? what is the degrees in celsius

    asked by Anonymous
  46. American Government

    What is ideology and what are the 2 basic ideologies that shape American political behavior? In other words, define ideology and explain the basic political assumptions of the 2 dominant ideologies in America. With what political group(s) or demographics

    asked by Anonymous
  47. socials 11

    why was the expo 67 a significant moment for French-Canadians?

    asked by alyssa
  48. alg2 check?

    Graph the system of inequalities then substitute the (x,y)order pair into both inequalities. y>3x+1 y

    asked by tyneisha
  49. Physics

    HW9_1: AXIAL AND TRANSVERSE STRAINS - THE POISSON'S RATIO When no loads are applied, the isotropic elastic block depicted below is a cube of side L0=200 mm. When the distributed load (surface traction) q=200 MPa is applied as shown below, the side length

    asked by MAN
  50. physics

    A 2.60 kg steel gas can holds 15.0 L of gasoline when full. What is the average density of the full gas can, taking into account the volume occupied by steel as well as by gasoline?

    asked by Alice
  51. math

    ED is wrapping 8 identicap presents. He needs 3/5m of ribbon to wrap each present. He needs an additional 1/5m of ribbon to make a bow. How much ribbon does he need to wrap and make bows for all 8 presents?

    asked by sam
  52. STATISTICS

    WHAT DOES THE CENTRAL LIMIT THEOREM SAY ABOUT THE TRADITIONAL SAMPLE SIZE THAT SEPARATES A LARGE SAMPLE SIZE FROM A SMALL SAMPLE SIZE?

    asked by LINDA
  53. chemistry

    If you dilute 27.0\({\rm mL}\) of the stock solution to a final volume of 0.460\({\rm L}\) , what will be the concentration of the diluted solution?

    asked by hilllary
  54. geography

    Does industrialization cause global warming in Durban?Motivate your answer

    asked by sthembiso
  55. english

    to kill a mockingbird movie analysis question. 1) how does the lack of eye contact show Mayella is lying? Why is she lying? How does this show racism?How is this significant to the film? analysis further toward the so what factor. Thanks

    asked by sarah
  56. math

    If k = p/4, for which of the following values of p does k equal 3 ?

    asked by vincent
  57. mathsddddddddddddddddddddddddddd

    A composition of the number n is an ordered set of integers a1,a2,…,ak such that a1+a2+⋯+ak=n. The numbers a1,a2,…,ak are called the parts of the composition. Determine the number of compositions of 23 where each part is at least 4.

    asked by shayan
  58. math

    Shelly delivers the weekly local paper to neighborhoods in her town. House numbers are even on one side of the street and odd on the other. Shelly delivers an equal number of papers to both sides of the street. Although she always aims for the front

    asked by zach
  59. math

    Kalil flipped a coin sixty times. He got thirty-four heads. How does this result compare to the number of heads you would have expected based on theoretical probability?

    asked by zach
  60. Customer service

    Customers become less demanding as time passes; therefore, going the extra mile for them will not make your customer service any more valuable

    asked by Anonymous
  61. CHEM

    how many moles of oxygen are present in 11.0 molecules of NaClO4? AND HOW DO I WORK IT OUT

    asked by JAMIE
  62. American Government

    First, explain what civil liberties are. Then, look at the first amendment. The first amendment states “Congress shall make no law . . . abridging the freedom of speech, or the press.” In practice, however, the Supreme Court has never regarded these

    asked by Anonymous
  63. english

    ideas on the subject of sharing a car with a sibling.

    asked by ashley
  64. HELP!

    Is there any scholarships for high school freshman??? (any that you heard of). I live in NY. All I know is the Best Buy Scholarship and Scholastic Arts and Writing Awards. Please help and thank you! (I couldn't find much).

    asked by Laruen
  65. math

    Ted wants to make an input- output table with numbers of meters as input values and numbers of centimeters as output values. What rule should Ted use for his table?

    asked by sam
  66. hcs 440

    I have to do two slide for a ppt with the topic of Medical Care for an Aging Population. My question is how are we to cut medical care cost for the elderly using educational programs.

    asked by sue
  67. math

    2( a + b ) x 4 1/2 (a + b ) =

    asked by vincent
  68. math

    Let [ x ] denote the greatest integer less than or equal to x. For example, [ 3.4 ] = 3 and [ -1 ] = -1. What is the value of [ -2.3 ] + [ 2.3 ]?

    asked by vincent
  69. math

    If y = ( x-1)^2, then y 3/4 =

    asked by vincent
  70. maths

    A composition of the number n is an ordered set of integers a1,a2,…,ak such that a1+a2+⋯+ak=n. The numbers a1,a2,…,ak are called the parts of the composition. Determine the number of compositions of 23 where each part is at least 4.

    asked by kk
  71. math

    A composition of the number n is an ordered set of integers a1,a2,…,ak such that a1+a2+⋯+ak=n. The numbers a1,a2,…,ak are called the parts of the composition. Determine the number of compositions of 23 where each part is at least 4.

    asked by kk
  72. mathsssssssssaaaaaaaaaaaaaaaa

    An ant starts a random walk on the real number line at 0. At each step, the ant moves by +1 or −1 with equal probability. After 6 moves, the probability that the ant is on a positive number can be expressed as a/b, where a and b are positive coprime

    asked by shayan
  73. math

    express y=0.1(1000)^x in the form lg y =mx+c ,where m and c are constants ,and x is a function of x . Determine the constants m and c and the function x .

    asked by Kris
  74. Psychology

    Is this a source that you would consider a scholsrly source. Kliff, S. 2012. Seven facts about America’s mental health-care system. The Washington Post.

    asked by Diane
  75. English-Help!

    What is a thesis, antithesis and synthesis?

    asked by Nicole
  76. SCIENCE,PHYSICS

    A thin ring with resistance R=10 Ω and self inductance L=0.2 H rotates with constant angular speed ω=100 rad/s in an external uniform magnetic field perpendicular to the rotation axis. As a result, the magnetic flux created by the external field varies

    asked by kk
  77. l.o

    Which 5 ways the human or environmental problem impacts on the community?

    asked by sthembiso
  78. Physics

    A bass guitar string produces a frequency of 460 Hz when plucked with no fingers on any of the frets. The same string is plucked again, with a finger placed halfway between the two ends. What frequency does it produce?

    asked by Van
  79. MATH

    2tan^2x-tanx-1=0 0

    asked by ROBIN
  80. Physics

    What are some careers that relate to waves and sound? Can you give some examples of how it's used please?

    asked by Van
  81. calculus

    How many integer values of a are there such that f(x)=x^+ax^2+8ax+25 has no local extrema?

    asked by andy
  82. American Govt

    What are the four trends in the modern American political economy? Identify each and use evidence from the course to provide proof of each trend in practice. Then discuss the pros and cons of each trend. Are they healthy or unhealthy developments for the

    asked by Anonymous
  83. American Government

    Define and explain both political culture and public opinion. Give examples of each to clearly differentiate the two concepts. Then, explain what effect each has on or role each plays in American politics? How are they different and how are they similar?

    asked by Anonymous
  84. math

    If (x+2)f(2−x)+(2x+1)f(2+x)=1 for all real values of x, then f(18)=a/b, where a and b are coprime positive integers. What is the value of a+b?

    asked by andy
  85. alg2 check?

    solve 3(8x-2)=46-2(12x+1) 24x-6=46-24x+2 24x-6=48-24x 48x-6=48 48x=42 x=42/48 or 7/8 what where the two mistakes made in the problem? I said the 46 going to 48 and subtracting the 6 from 48?

    asked by tyneisha
  86. math

    solve (-2y)^2(3x^3) I totally don't get this problem. Does my answer come out with x and y ? how do I eliminate?

    asked by johnathan
  87. calculus

    Let V be the volume of the three-dimensional structure bounded by the region 0≤z≤1−x^2−y^2. If V=a/bπ, where a and b are positive coprime integers, what is a+b?

    asked by andy
  88. calculus

    How many positive integers a (

    asked by andy
  89. math

    (X+2Y)+6X(X-2Y)+8X

    asked by casey
  90. algebra

    (2X-Y)+7X(2X-Y)+10X

    asked by casey
  91. calculus

    he volume of the solid obtained by rotating the region bounded by x=(y−2)^2 and y=x about the x-axis has the form N/2π. What is the value of N?

    asked by andy
  92. Chemistry

    CH3CH2CHCH3 --H2CrO4--> ? l OH

    asked by confucius
  93. calculus (point me in the right direction please?)

    Let V be the volume of the three-dimensional structure bounded by the region 0≤z≤1−x^2−y^2. If V=a/bπ, where a and b are positive coprime integers, what is a+b?

    asked by andy
  94. geometry

    Find the area of the quadrilateral in Exam Figure 5. Round your answer to two decimal places.

    asked by g
  95. English

    Is it grammatically correct to say, "Nice meeting you?"

    asked by Anonymous
  96. Sociology

    In Chapter 2 of the textbook, the author describes meanings for the concept of socio-economic class and analyzes how perceptions of justice may be influenced by class distinctions in American society (see Section 2.4). He also references the related views

    asked by Anonymous
  97. alg2 check

    a.)write the equation of the line that has a slope of -2 and a y-int of -6. I don't understand if I use y=mx+b or not.how would I plug this in If im trying to get an answer?

    asked by tyneisha
  98. Math

    The number N of state and federal inmates in millions during year x, where x>2002 can be approximated by the following formula N=0.04x-79.02

    asked by Martin
  99. alg2 check

    b.)write the equation of the line that passes through the point (-6,-2) and has a slope of -2/3. if im using y=mx+b then how would I plug in -2/3 since it is a fraction instead of a regular number?

    asked by tyneisha
  100. math

    what type of polynomial is 5x^y? its binomial right?

    asked by ashely
  101. Solution Set

    The Y-coordinate of the solution of the system {x+y=3 {-3x+2y=-19 the answer is -2 how? I've done everything to try to solve!

    asked by Sara
  102. math

    7x/7x-21

    asked by Anonymous
  103. Math

    What is the cubic feet of a concrete slab 20ft x 30ft x 6" thick.

    asked by Scott
  104. math

    If k = 3x, and y -1/3x, then k time y would equal

    asked by vincent
  105. science

    atomic structure

    asked by Anonymous
  106. Hvac

    3 resistors of 5 ohms,15 ohms, and 30 ohms are connected in series and placed across a 50 volt batt. Find the voltage drops acroos each resistor . And find the current through each resistor

    asked by Dave
  107. math

    Use exponents to express the volume of a cube with edges of length 3y.

    asked by vincent
  108. calculus

    A 3-dimensional structure is obtained from rotating the parabola y=x^2 about the y-axis. Each second, 2π units^3 of water is being poured into the structure from the top. When 8π units^3 of water has been poured in the structure, the instantaneous change

    asked by andy
  109. socials 11

    why did tvs become so popular after the ww2?

    asked by alyssa
  110. alg2 check?

    solve: 2x+2(x+3)=2(x+7) what I got was x=4 but I really think I calculated wrong. Can you show me the step by step process please?

    asked by tyneisha