# Questions Asked onApril 23, 2011

1. ## chemistry

what is the solubility of barium sulfate in a solution containing 0.050 M sodium selfate? The Ksp value for barium sulfate is 1.1E-10. An insoluble salt with formula MX3 has a solubility product constant written in terms of solubility,s, in the form a)

2. ## chemistry

I have many questions. I have a test tuesday and need to get these problems done and understand them today because i am currently studying. I am in college and my professor has not emailed me back regarding solutions for the review problems she posted. Is

3. ## algebra 1

A ladder leaning against a house makes an angle of 60 degress with the ground. The foot of the ladder is 7 feet from the foundation of the house.how long is the ladder? please some sugesstions

4. ## chemistry

A voltaic cell consists of an Mn/Mn2+ half-cell and a Pb/Pb2+ half-cell. Calculate [Pb2+] when [Mn2+] is 2.3 M and Ecell = 0.49 V.

5. ## College Chemistry I

Calculate delta G and Kc. 2Al(s) + 3I2(s) to 2Al3+(aq) + 6I-(aq)

6. ## 2 more physics questions I need help on, please?

In which of these situations does more charge flow past a given point on a wire? a. Current of 4 A in 1 min b. Current of 2 A in 0.5 min c. Current of 8 A in 2 min d. All are the same charge I think the answer is C? Since the formula for finding current is

7. ## Chemistry

what is the highest boiling point to the least HF,HCL, NACL, F2

8. ## medical billing

for medicaid cases there is no assignment of benefits unless the patient has other insurance in addition to medical. true or false 2. a two or three form that incorporates a bill, insurance form,and routing document used both computer and paper based

9. ## Chemistry

A 3.23 gram sample of a sodium bicarbonate mixture was reacted with excess acid. 48.52 mL of the evolved gas was collected of the water at .930 atm. and 23.0 degrees C. What is the percentage of sodium bicarbonate in the original mixture?

10. ## st justin

Many people insist that the Internet is revolutionizing the political process. They argue that Internet debates and online political polls and chat rooms give people greater access to political information. And they’re right that online political chatter

11. ## Chemistry

The freezing point of mercury is -38.8°C, is the only metal that is liquid at room temperature. What quantity of heat energy, in joules, must be released by mercury if 2.00 mL of mercury is cooled from 23.0°C to -38.8°C and then frozen to a solid? (The

12. ## math subsets

what is the proper subset for 13, 14, 15

13. ## Math

The areas of two adjacent squares are 256 square inches and 16 square inches, respectively, and their bases lie on the same line. What is the number of inches in the length of the segment that joins the centers of the two inscribed circles? Express your

14. ## life orientation

topic:teenage pregnancy. In 1o-15 lines critically discuss 5 ways in which the human/environmental problem impacts on the community.pls provide me with relevant sources to support your claim

15. ## Physics

Physics Question Help please!!!? A 3.70 kg mass attached to a spring oscillates with a period of 0.375 s and an amplitude of 17.0 cm. (a) Find the total mechanical energy of the system

16. ## Chemistry

What is the mole fraction of methanol CH3OH, in the vapor phase from a solution consisting of a mixture of methanol and propanol CH3CH2CH2OH at 40celsius, if the total pressure above the solution is 131 torr? The vapor pressures of methanol and propanolare

17. ## chemistry

what is the net ionic equation for tin + copper 2 sulfate?

18. ## Math

Could someone answer this question so I understand it. Thanks Given the supply function: p = S(x) = 5(e^0.02x-1) Find the average price (in dollars) over the interval [31,36]. Only the 0.02 is ^ in the e in the question.

19. ## chemistry

The freezing point of mercury is -38.8°C, is the only metal that is liquid at room temperature. What quantity of heat energy, in joules, must be released by mercury if 2.00 mL of mercury is cooled from 23.0°C to -38.8°C and then frozen to a solid? (The

20. ## chemistry

Balance each of the following redox reactions occurring in acidic aqueous solution.Express your answer as a chemical equation. Identify all of the phases in your answer. Zn(s) + Na(aq)-> Zn2+(aq)+Na(s) Cl-(aq) + 2NO3-(aq)->NO(g)+Cl2(g)

21. ## Physics

The specific heat capacity of ice is about 0.5 cal/g °C. Calculate the number of calories it would take to change a 4 gram ice cube at absolute zero (-273°C) to 4 gram of boiling water.

22. ## physics

a stone is from the top of a tower 300m high and at the same time another stone is projected vertically upward with initial velocity 75m/s. calculate when and where the two stone meet

23. ## physics

A Foucault pendulum is designed to demonstrate the effect of the Earth's rotation. A Foucault pendulum displayed in a museum is typically quite long, making the effect easier to see. Consider a Foucault pendulum of length 16 m with a 109-kg brass bob. It

24. ## chemistry

what will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water?

25. ## Chemistry

A 5.55g sample of a weak acid with Ka=1.3 x10^-4 was combined with 5.00 mL of 6.00 M NaOH and the resulting solution was diluted to 750 mL. The measured pH of the solution was 4.25. What is the molar mass of the weak acid?

(4x² - 2xy + y²) + (- 8x² -9xy – y²) + (x² + xy -8y²)

27. ## chemistry

How many milliliters of 3.60 {\rm M} {\rm HCl} are required to react with 140 {\rm mL} of 1.60 {\rm M}{\rm Al}({\rm OH})_{3}?

28. ## English

I had to write an compare and contrast essay, but somewhere down the line I got lost. Can someone help me please... Here's what I already have... Into day’s society, online social networking has provided a variety of advantages and disadvantages. The use

29. ## physics

A mass of 12.7 kg is hanging by a steel wire 1.02 m long and 1.12 mm in diameter. If the mass is pulled down slightly and released, what will be the frequency of the resulting oscillations? Young's modulus for steel is 2.0 1011 N/m2.

30. ## Chemistry

What is the vapor pressure in Torr above a solution prepared by mixing 66.73g of benzene C6H6 with 63.26g toluene C6H5CH3 at 20 Celsius. The vapor pressure of pure benzene and toluene at 20celsius are 75 and 22 torr respectively. These compounds form

31. ## physics

Determine the force of interaction between 2 electric charges q1= 1x10-6 C and q2= 2x10-6 C at the distance r = 2 m. I think the formula is F=kq1*q2/r2? How do I find k?

32. ## English

TAMING OF THE SHREW Christopher Sly, a drunk tinker, is being scolded by the hostess of a bar. Why is she angry with him? What is his response?

33. ## Jules

Could someone answer this question so I understand it. Thanks Given the supply function: p = S(x) = 5(e^0.02x-1) Find the average price (in dollars) over the interval [31,36]. Only the 0.02 is ^ in the e in the question.

34. ## Chemisty

How many grams of sodium bicarbonate mut be decomposed by: HCl (ag) + NaHCO3 (ag) ----> NaCl (ag) + CO2 (g) + H2O (l) to yield 75.0 mL of carbon dioxide at STP?

35. ## geometry.

sketch, label and mark each figure. 1.Isoscles obtuse triangle TRI with vertex angle T. 2.Rhombus RHOM with acute

36. ## Statistics (binomial random variable)

Let x be a binomial random variable with n = 10 and p = .4 Find the values. P (x›4) P (x≤4) I could really use some examples to help me get started and understand it. Thanks

37. ## Chemistry

What would Qc be if the volume of the container increased by a factor of 1.604 for this reaction SO2+Cl2 SO2CL2 kc = 12.821 at 373K

38. ## geometry

From the top of a lighthouse 210 feet high, the angle of depression to a boat is 27 degress. Find the distance from the boat to the food of the lighthouse. The lighthouse was built at sea level? Please help and for some sugesstions

39. ## Chemistry

How many grams of glycerin C3H8O3 must be dissolved in 375.9g of water at 100 degrees Celsius to reduce the pressure of water above the solution to 714.6mmHg. The solution is a non-volatile compound

40. ## physics

How much charge flows through a 12 V battery when a 2 ìC capacitor is connected across its terminal?

41. ## trig

I need help with this problem: If San Francisco Giants homerun king, Barry Bonds, hit a baseball due west with a speed of 50.0 m/s, and the ball encountered a wind that blew it north at 5.00 m/s, what was the resultant velocity of the baseball?

42. ## careers- school ties discussion questions

from the movie school ties, what david green and dillion's pattern of prejudice/discrimination

43. ## Sociology

Which sociological perspective holds the view that people create their social worlds through interaction and manipulation of symbols?

44. ## algebra

a diver dove 94 meters and rose 2 meters every minute for 8 minutes. Where is the diver in relation to the surface? The answer to me would be 94 - 16 = 78 meters. Why is this wrong?

45. ## French

In all French verbs tenses do you add an extra e for females es for feminine plural and s for masculine plural. ? Or is this just for the passe compose or direct object pronoums ?

46. ## pre- algebra

In a survery, students were asked whether they play basketball or tennis. Of 34 students, 24 play basketball and 13 students play tennis.4 students play neither. How many students play both sports? Is it 7 students?

47. ## Accounting

Axel Corporation acquires 100% of the stock of Wheal Company on December 31, Year 4. The following information pertains to Wheal Company on the date of acquisition:

48. ## Check my math please

Total Rainfall = rainfall mm x area covered In order to ensure that our values are correct we will need to convert the area covered (the total area of the two tanks) from metres into millimetres. We will also need to convert the total rainfall (KL) into

49. ## calculus

Find the area of the region bounded by the parabola y=x^2 , the tangent line to this parabola at (10, 100), and the x-axis.

50. ## Math

(c+24)sin118= csin24 can you please solve for c

51. ## physics

A mass of 0.394 kg is attached to a spring with a spring constant of 224.2 N/m. Its oscillation is damped, with damping constant b = 14.0 kg/s. What is the angular frequency of this damped oscillation? ω = rad/s

52. ## geometry

sketch label and mark each figure 1.Isoscles obtuse triangle TRI with vertex angle T. 2.Rhombus RHOM with acute

53. ## Statistics

Data Information: Wage Income Statistics: Men VS Women Wage gap, by description, is the difference in salary among two groups of people. The description is associated with the practice of paying one gender more than the other. For many years there has been

54. ## Math

Hey I'm working on a math assignment and I'm trying to work out the total amount of rainfall that fell in a certain area. Would this formula be correct? Total rainfall = rainfall mm x duration of storm minutes x area covered And with my rainfall mm I

55. ## Chemistry

What quantity of heat must be absorbed to convert 86.1 g of liquid to a vapor at its boiling point, -24.09 c? the heat of vaporization of ch3cl is 21.40

56. ## physics

What is the period of a simple pendulum that is 2.0 m long in each situation? (b) in an elevator accelerating at 3.0 m/s2 upward (c) in an elevator accelerating 3.0 m/s2 downward

asked by I need help in 2 parts only !!!
57. ## Chemistry

The vapor pressure of water at 95C is normally 6.33.9 but decreased to 561.2mmHg upon addition of an unknown amount of NaOCl to 164.3g of water at this temp. How many grams of NaOCl was added assuming complete dissociation of the solute

58. ## physics

When a mass is attached to a vertical spring, the spring is stretched a distance d. The mass is then pulled down from this position and released. It undergoes 52 oscillations in 28.3 s. What was the distance d?

Which proportion can you use to find the width of a full size railroad track? of 1 millimeter for every 87 millimeters in a full size train. The model railroad cars run on a track that is 16.5 mm wide. f) 1/87 = x/16.5 g) 1/87 = 16.5/x h) 1/x= 87/16.5 j)

60. ## Algebra

The area of a rectangle is given by x^2-4x-21. What are the dimensions of the rectangle?

61. ## 204 his

question? Full Reconstruction proved to be a failure. Reconstruction - as defined - was the process of restoring the Confederate states, while integrating Western states, into the Union (without slavery) following the Civil War.Can anyone help with some

62. ## Algebra---Variation

It is a variation problem. I know what the answer is and how to get to the answer I just don't know how I got it. From measurements on many rivers, geographers find that the length of a river that drains a particular "basin" of land is approximately

63. ## chemistry

The Ksp of calcium carbonate is 4.5E-9. What si the concentration of calcium carbonate in equilibirum in water? -do i make an ICE table and please explain Ksp.

64. ## math

Meka plans to bake a large circular cookie for her brother. She wants to decorate the outer edge of the cookie with small pieces of chocolate. The radius of the cookie is 7 inches. Which is the closest to the circumference of the cookie?

65. ## science

what quantity of heat must be absorbed to convert 86.1 g of liquid to a vapor at its boiling point, -24.09 c? the heat of vaporization of ch3cl is 21.40

66. ## Physics

A 30-lb weight is attached to one end of a 6-ft uniform beam whose own weight is 20-lb. Where is the balance point? Thanks in advance.

67. ## medical billing & coding

If a patient has an individual insurance policy, a release of information does not have to be signed before the physician's office submits a claim to the insurance company. true or false . i put false is that correct

68. ## Physics

A 10-kg ladder 2.5m long rests against a frictionless wall with its base on the floor 80cm from the wall. How much force does the top of the ladder exert on the wall?

69. ## careers- school ties discussion questions

am sorry.From the movie'' school ties'', what was david green and dillion's pattern of prejudice/discrimination

70. ## Physics

Still stuck...see post at 3:34pm. I don't think I'm understanding the instructions regarding what #'s to use for sin and cos.

71. ## chemistry

If Tums is added to 55.0 {\rm mL} of 0.750 {\rm M}{\rm HCl}, how many grams of {\rm CO}_{2} gas are produced?

72. ## Character Buidling

My Character Building Teacher had given me a project to write the names of the people we hate on a non-boiled raw potato, and put it inside a clear plastic, locked, and not to be opened until the project is finished. Everyday, we should take an observation

73. ## French

I don't know when I should add an e to indicate female in verbs/tenses Is the following correct ? je me lave (masculine) or je me lavee (female) il se lave elle se lavee Many thanks Dympna

74. ## Math

Okay so I'm trying to work out how many mm of rain fell in a certain area. I've got the total volume/capacity that fell (3.51125KL) and the total area that it fell in (8558.25m). My formula is Total Rainfall = rainfall mm x area covered How would I make

75. ## Writeacher

Writeacher, I just want my answer to be clarified. So the original idea of boundaries was to separate the land among the territories and provinces...??? And make locations on maps seem easier? --I still feel like I'm missing out on some things, but I don't

76. ## Chemistry

In a copper cycle lab, where could have the lost copper might have went? Let's say I did a copper cycle lab and my final weight of the copper is less than what i started with. Where did it go?

77. ## American Government

According to the Anti-Federelist, to strong a government meant?

78. ## algebra 1

What are the values of a and b.if any,where a|b-2|

79. ## math

Could someone answer this question. im stuck on it. Id appreciate it. Use substitution to find the indefinite integral. çp(p+3)^5 dp Use C as the arbitrary constant.

80. ## Writeacher

What happened when the establishment of a boundary between British columbia and Alaska came about?

81. ## geometry

What are the values of a and b.if any,where a|b-2|

82. ## Physics-totally bewildered!!

I have a physics question. This is for extra credit which I really need to earn- If I made a solar cell how would I know which material is best to use if given choices like aluminum with a work function of 4.1eV at a cost of 2.40Kg or platinum with a work

83. ## ELA

I NEED A SUMMARY OF THE BOOK FRINDLE I CANT FIND THE BOOK PLEASE HELP AND CAN YOU JUST SUMMARIZE THE CHARACTERS

84. ## chemistry

Is it possible to calculate the value of the solubility product constant without being given any concentrations?

85. ## Algebra

I need help! Fin the inverse of the function, How do I work the below problem. I need an example do to all the examples I have all have an (fx, g or y) I am working 6 problems like this. {(1, 0), (2, 1), (-1, 0), (-2, 0)}

86. ## algebra

i forgot how to convert a decimals to a fractions, can u help me solve this: 0.14 percent: 14% fraction: ?

87. ## Psychology

I'm doing a presentation on Friday and I want to explain the General Aggression Model in more detail. I can't think of a way to explain "Aggressive perceptual schemata", "Aggressive expectation schemata", and "Aggressive behavior scripts" to the class. Any

88. ## Character Buidling

My Character Building Teacher had given me a project to write the names of the people we hate on a non-boiled raw potato, and put it inside a clear plastic, locked, and not to be opened until the project is finished. Everyday, we should take an observation

89. ## world history

Can you compare Syria's education level of population with the France's back in the days before the french revolution?

90. ## Physics

If a aircraft flie at 1000m/s east it accumulates a 50C of charge as it passes a cloud. How would I calculate magnitude of magnetic force, direction of magnetic force on plane and do the pilots have to make corrections to make up for the difference? Thanks

91. ## English

I changed my name to Henry1 because other students have chosen Mike, Mike 1. As you suggested to me, I chose five sentences. Thank you. 1)The trip showed me that there is a big world outside.I decided to take (??) the trip to keep my family good company.

92. ## algebra

could someone please explain to me how -5/8 + 1/4 = -3/8? I have several more of these problems -5/8 + -1/6 = -19/24, and more. I have no reference in my text on how to do these. Can someone take me through the steps?

1. $5030 at 8% from January 3 to July 4 what is the interest rate and maturity value asked by mya 94. ## principle of managemen Read the following case study: Conflicting Views and submit your answers to the questions at the end of the case study. CASE STUDY: CONFLICTING VIEWS “You’re from the old school,” said Rita. “A little change never hurt anyone. You know the old asked by Zhanna 95. ## sciene how can solar power work at night asked by saira 96. ## geometry In triangle ABC, if asked by susi 97. ## Physics Can someone please help me with this physics question? I have most parts of the question answered already. (i only need help with b and c). Thanks The motion of a body is described by the equation 3.50 sin (0.100ðt)where t is in s and y is in m. (a) Find asked by Anonymous 98. ## science hydrogen gas combines with nitrogen to form ammonia how do we translate and then balance this equation? asked by saniya 99. ## physics A satellite of mass m in a circular orbit at a height of 400Km above the earth's surface. What is the Radius of the Earth (given: 6.35 * 10^6) with respect to the center C of the Earth? asked by Lisa 100. ## trig an angle 30 with the distace of 24km and an angle of elevation of 45 with the distance of 15km. asked by joshua 101. ## Grammar Where do we put the "and" when writing a number, 1234.567 for example, in words? Some references say, "one thousand two hundred and thirty-four point five six seven. Other references say, "one thousand two hundred thirty-four and five hundred fifty-six asked by Daniel 102. ## programming Create a Flash movie that uses motion animation to change a figure from a large size to a small size and back as it moves from the top to the bottom of the right side of the stage. asked by chris 103. ## Principles of Accounting Hot Dawgs! Inc. has 3 managers that work in shifts throughout the day and night. The company also employs 4 cooks and 2 waitresses per shift. There are 3 shifts: morning, afternoon, and evening. The managers are paid an annual salary with a 2% bonus every asked by Tracy 104. ## algebra1 From the top of a lighthouse 210 feet high, the angle of depression to a boat is 27 degress. Find the distance from the boat to the food of the lighthouse. The lighthouse was built at sea level. please some sugesstions. asked by nena 105. ## calculus Find the volume of the solid obtained by rotating the region bounded by y= x^2 and x=y^2 about the x-axis. asked by Anonymous 106. ## calculus Find the volume of the solid obtained by rotating the region bounded by y= x^3 and x= y^3 about the line x= -1. asked by Anonymous 107. ## 6th grade math Linda is painting a design. Each tube of paint will cover an area of 51 square centimeters. At least how many tubes of paint will Linda use to paint section c? Note: section c is 6cm The answers to choose fom are a) 1 b) 2 c)3 d) 4 I tried 51 divided by 6 asked by Suzanne 108. ## math The mean time for running a mile is 450 se4conds with a standard deviation of 40 seconds. What time would you need to beat to be in the top 10%? asked by Sue 109. ## History What did Kennedy hope to accomplish with the New Frontier? asked by Kelsey 110. ## CRIMINOLOGY In what areas should the federal authorities not become involved? asked by John 111. ## chemistry Determine the pressure when it expands to 10 liters, from a 5 liter ballon at 1 atm and 150k. asked by bobby 112. ## Physics-Someone please recheck Bob Pursley rechecked my question and it was correct if you scan down but he didn't direct me where to find direction of magnetic force on plane and do the pilots have to make corrections to make up for the difference? I'd appreciate any help with that, if asked by Russ 113. ## JAD 49a² + 16 – 56a asked by Anonymous 114. ## Chemistry How do you figure out hydrate formulas? asked by Will 115. ## algebra what is the area of length 5 and with 6 asked by abi 116. ## algebra 1 sketch, label and mark each figure. 1.Isoscles obtuse triangle TRI with vertex angle T. 2.Rhombus RHOM with acute asked by nena 117. ## English I forgot to ask you the following question. I included a few other questions. Thank you very much. 1) When giving instructions on what to do before boarding a plane to a person who has never flown, shall I use "you have to", "you + simple present", "you asked by Henry1 118. ## medical billing & coding insurance claims may not be legally denied for payment even if submited after the insurance company's time limit. true or false asked by christina 119. ## calculus finding limit using epsilon and delta of lim x->2 x^3-3x+7=9..plz anyone solve it for me.... asked by Yashna Islam 120. ## hlulani what are the human and environmental problem on the community.5 ways briefly asked by hlamazi 121. ## Physics Q #2: (only other one I'm stuck on...) A 10-kg ladder 2.5m long rests agaist a frictionless wall with its base on the floor 80cm from the wall. How much force does the top of the ladder exert on the wall? I've found answers to similar questions on this asked by Stephanie 122. ## 6th grade math Is there a quick way to get the answer to this problem without doing a calculation of each possible answer. These numbers are arranged from greatest to least. Which value is next. F) 1/2 G) 0.58 H) 6/8 J) 0.65 asked by Suzanne 123. ## social studies what 3 cities where the worst place to be a slave in 1852 asked by Anonymous 124. ## geometry find the surface area with a height of71 ft and a radius of 62 ft asked by Anonymous 125. ## maths Use the quadratic formula to solve the equation x^2-7x+9=0 I've tried to do this manytimes but can't seem to get it. I've other questions like it so if someone could talk me through this one maybe i'd understnad the method better thanks. asked by susan 126. ## maths the graph of y=-(x^2/3)=2x=24 is a parabola. 1) is the parabola u-shaped or n-shaped. how can you tell this from the equation? asked by elizabeth 127. ## JAD 8.09 x 10,000,000,000 = asked by Anonymous 128. ## Math Gary mailed a box that weighed 2 pounds 8 ounces. The postage cost$15.60. How much was the postage in cents per ounce?

what are 3 decision traps that influece human judgment and decision making? legal consequences of falling into the traps?

130. ## health care

the insured may not necessary be the patient seen for medical service. true or false