# Questions Asked onJuly 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

2. ## 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?

3. ## 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?

4. ## 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

5. ## 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

6. ## 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

7. ## 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

8. ## 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?

9. ## trig

tan(7π/4) + tan(5π/4) Does this = 0

10. ## 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?

11. ## 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?

12. ## math

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

13. ## 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.

14. ## 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

15. ## l.o

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

16. ## 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?

17. ## 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?

18. ## 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.

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

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?

21. ## 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?

22. ## socials 11

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

23. ## 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?

24. ## alg2 check?

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

25. ## calculus

How many positive integers a (

26. ## math

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

27. ## algebra

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

28. ## 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

29. ## 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?

30. ## 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?

31. ## 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

32. ## 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

33. ## 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?

34. ## Chemistry

CH3CH2CHCH3 --H2CrO4--> ? l OH

35. ## Calculus-HELP PLZ !!!!

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

36. ## 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?

37. ## 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?

38. ## 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?

39. ## english

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

40. ## 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).

41. ## 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?

42. ## 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.

43. ## geometry

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

44. ## 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

45. ## English

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

46. ## 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) /

47. ## Calculus

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

48. ## 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?

49. ## 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?

50. ## Math

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

51. ## 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

52. ## 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?

53. ## 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

54. ## 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?

55. ## 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?

56. ## math

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

57. ## 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?

58. ## 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!

59. ## STATISTICS

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

60. ## 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?

61. ## 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

62. ## econmics

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

63. ## 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

64. ## 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.

66. ## 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.

7x/7x-21

68. ## 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

69. ## 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

70. ## math

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

71. ## Math

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

72. ## 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?

73. ## 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 ]?

74. ## math

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

75. ## 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

76. ## math

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

77. ## math

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

78. ## 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.

79. ## 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.

80. ## 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

81. ## 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.

82. ## science

atomic structure

83. ## 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 .

84. ## 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

85. ## 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

86. ## English-Help!

What is a thesis, antithesis and synthesis?

87. ## 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

88. ## math

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

89. ## 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

90. ## 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

91. ## 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?

92. ## 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?

93. ## MATH

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

94. ## 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

95. ## 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

96. ## Physics

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

97. ## 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

98. ## CHEM

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

99. ## 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

100. ## 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?

101. ## 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

102. ## calculus

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

103. ## socials 11

why did tvs become so popular after the ww2?

104. ## 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

105. ## 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

106. ## 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?

107. ## 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?

108. ## 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