Questions Asked on
December 16, 2008

  1. Physics - Buoyant Force

    A piece of metal weighs 50.0 N in air, 36.0 N in water, an 41.0 N in an unknown liquid. Find the density of the unknown liquid.

    asked by Phillip
  2. Chemistry

    BrO3- + 5Br- + 6H+ 3Br2 + 3H2O If 25.0 ml of 0.200-molar BrO3- is mixed with 30.0 ml of 0.45-molar Br- solution that contains a large excess of H+, what is the amount of Br2 formed, according to the above equation? The answer is 0.00810 moles but I don't

    asked by Andrew
  3. math

    what is 22 2/9% as a fraction?

    asked by Mike
  4. physics

    The mean distance of the planet Neptune from the Sun is 30.05 times the mean distance of Earth from the Sun. a.) Determine how many Earth-years it takes Neptune to orbit the Sun. b.) The mass of the Sun is 1.99 x 10^30 kg, and the closest distance of

    asked by Michelle
  5. algebra with pizzazz

    What is it called when a sea bird lands on a channel marker?

    asked by laura
  6. physics

    Assuming Earth behaves as a perfect sphere with a radius of 6380 km, the standard gravitational acceleration,g, at sea level has a value of 9.80 m/s^2. a.) As Earth rotates on its axis, objects at the equator experience a slightly different value of g due

    asked by Michelle
  7. Calculus

    Find two numbers whose sum is 10 for which the sum of their squares is a minimum.

    asked by bobby
  8. english

    htt p: //w ww. collegeboard. com/prod_downloads/ap/students/ english/eng_lang_frq_01. pdf what is an example of alliteration on the third page of this document for the poem about the owls?

    asked by chris
  9. Chemistry

    We did a flame testing lab today with the following metal ions: Sodium, Na^+1 Barium, Ba ^2+ Calcium, Ca ^2+ Copper, Cu ^2+ Potassium, K ^+1 Strontium, Sr ^2+ Lithium, Li ^+1 The question asks to explain the effect of the nitrate ion solution on the color

    asked by Ellen
  10. US History

    Evaluate the extent to which the Articles of Confederation were effective in solving the problems that confronted the new nation. After the revolution, this gave the states freedom and independence. There was a comitee of delegates of representatives from

    asked by mw
  11. physics

    The moon is receding from the Earth by approximately 3.8 cm per year. Earth's mass is 5.98 x 10^24 kg, and its radius is 6.38 x 10^6 m. The Moon's mass is 7.3 x 10^22 kg, its radius is 1.79 x 10^6 m, and its orbital period around Earth is 27.3 days. The

    asked by Michelle
  12. science

    is chloringe flammable is chlorine flammable with a metal?

    asked by science
  13. physics

    Astonomers discover a new planet orbiting a fixed point in space, but for reasons unknown, they can't directly observe a star where one is expected. The radius of the orbit is measured to be 1.85 x 10^8 km, and the lone planet completes an orbit once every

    asked by Michelle
  14. Chemistry

    A sample consisting of 22.7 g of a nongaseous, unstable compound X is placed inside a metal cylinder with a radius of 8.00 cm, and a piston is carefully placed on the surface of the compound so that, for all practicla purposes, the distance between the

    asked by Anonymous
  15. math

    need help in 1996, the civilian labor force of the united states included 127 million people, and 5% were unemployed. how many people in the cilvilian labor force were unemployed?

    asked by laura
  16. macroeconomics

    1 The most important reason for the slope of the aggregate demand curve is that as the price level _______. 1) increases, interest rates decrease, and investment increases 2) decreases, interest rates decrease, and investment decreases 3) increases,

    asked by youngcity
  17. physics

    The floor of a railroad flatcar is loaded with loose crates having a coefficient of static friction of 0.20 with the floor. If the train is initially moving at a speed of 47 km/h, in how short a distance can the train be stopped at constant acceleration

    asked by help
  18. math work did i do right

    Interpreting Graphs and Intercepts Introduction: Graphs are created so that we can quickly derive meaningful information from them. They provide a visual representation of the data and, therefore, an understanding of the scenario. Interpreting graphs,

    asked by sherri
  19. Chemistry- Please help me

    A sample consisting of 22.7 g of a nongaseous, unstable compound X is placed inside a metal cylinder with a radius of 8.00 cm, and a piston is carefully placed on the surface of the compound so that, for all practicla purposes, the distance between the

    asked by Lauren
  20. physics

    A train moving at a constant speed of 68.0 km/h moves east for 33.0 min, then in a direction 40.0° east of due north for 30.0 min, and then west for 59.0 min. What is the average velocity of the train during this run? Magnitude km/h

    asked by help
  21. art

    Okay i have this art class that i love but im always having trouble making myself love my drawing and everyone says their always amazing so how do i get myself to love my mom art again?

    asked by symphany
  22. science

    I need help to find the answer to this problem: The formula for aluminum sulfate is Al2(SO4)3. Figure the molar mass of aluminum sulfate to the nearest gram?

    asked by wizzkid01
  23. 5th grade - Math

    If the retail tax rate is 5 cents for every 1 dollar you spend, how much tax would you pay for a $0.15 item?

    asked by RJ
  24. Scince

    The Big Idea of Energy sulphur and iron fillings

    asked by Yoyoyo
  25. Functions

    Find the sum of the 50 greatest negative integers. I'm supposed to find a, d, and t(at)n, but I'm not sure which is which. I think it makes sense for n to equal 50, but apart from that, I don't know what else to do. I would really appreciate some sort of

    asked by Lana
  26. MATH PLEASEEEEE

    I have a question, if f(x)=x/2 and g(x)=3x+1 find: a) (f+g)(x) i know you go x/2+3x+1. but how do i solve that?? b) (f-g)(x) i know you go x/2-3x+1, how do i solve? c)(f*g)(x) how do i solve? (f/g)(x) how do i solve?? f(g(x)) how do i solve?? thanks for

    asked by Jamie Lynn
  27. psychology

    Sara sets up an experiment with a control group and a experimental group to study how reading to preschool children may improve their first-grade reading achievement scores. In her study, the independent variable will be A first-grade reading achievement

    asked by ourania
  28. math

    There is a square whose vertices lie on a unit circle. Point P lies on the terminal arm of an angle in standard position, P(0.3420, 0.9397) how do you find the degrees of P?

    asked by s
  29. Algebra

    Another question: A cell phone company charges $60 for a cell phone and $40 per month under its economy plan. Formulate and graph a model that can be used to determine the total cost, C(t), of operating a cell phone for t months. Find the total cost for 5

    asked by Celina
  30. math

    how do i find the domain and range of equations? example: f(x)=ab.solute value of x-3. f(x)=square root 36-x^2 g(x)=-2x+2. do i find the range by pluggin in y for the x and then solving. for example: x=-2y+2, and then i get y=x-2/-2. and then is that how i

    asked by Jamie Lynn
  31. cjs200

    Private security has become an important aspect in protecting businesses and properties. where do you see examples of private security? 2. how effective do you feel the private security industry is in preventing crime and protecting communities?

    asked by anonymoys
  32. history

    How did the advances in steel production and oil refining affect US industry History

    asked by makayla
  33. math

    A dealer offers a computer software program whose list price is $500 at a 19% discount. She will give an extra 3% discount if paid in cash. What is the selling price if payment is made in cash? If 500=81%, _____=78% (this comes from subtracting 19% from

    asked by laura
  34. physics 2

    A delivery truck travels 19 blocks north, 12 blocks west and 22 blocks south. What is its final displacement from the origin? Assume the blocks are equal length. Find magnitude and direction. which is counter clockwise from east is positive.

    asked by geffrey
  35. psychology

    Incomparison to concordance rates for autism in dizygotic twins, monozygotic twins are blank likely to develop the same illness. A significantly less B somewhat less C significantly more D somewhat more I believe the correct answer is C

    asked by ourania
  36. Physics

    For a child's swing in lightly damped SHM, I am given the time period and a value for g; (as well as the mass.) with just these, can i rearrange the equation: T (4s)= 2pi times sqrt l/g to calculate the length of the swing? I believe i have (3.98m), but

    asked by charlie
  37. Trigonometry

    Does anyone have a good website that shows the proofs for these equations? sin(u+v) = sin(u)cos(v) + sin(v)cos(u) cos(u+v) = cos(u)cos(v) + sin(v)sin(u) Thanks!

    asked by Karth
  38. grammar

    how can I write a sentences with prepersitional phrases?

    asked by jasmine
  39. writing skills

    find answer 5.which of the following sentences has a compound predicate b.while he swam she collected shells c.she washed the shells and dried them in the sun d.on the way to the bank the interest rates went down

    asked by Ray
  40. 8th grade Physics

    I don't quite get the formula "w=(fd)" i understand what to do once you get the data, but i can't seem to ever get the data from the six basic machines, and converting the measurement units. I really need help, please

    asked by Anonmymous
  41. physics

    A car is driven 125 km west and then 85 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)? find magnitude in km find direction in degrees. South of west.

    asked by geffrey
  42. Social studies

    how to put together a crossword puzzle for the state of Pennsylvia

    asked by Alex
  43. chemistry desperately

    i am completely lost, i confused myself. i need to find the concentration of HC2H3O2 HC2H3O2 + NaOH ==> NaC2H3O2 + HOH NaOH C= 0.3 M v= 0.25 L n= 0.075 moles M= 40.00g/mol m= 3.00 g NaC2H3O2 n= 0.075 moles m= 0.4973 g(ammount of acetic acid in solution)

    asked by diana
  44. math

    Use the exponent rule to simplify the expression. Assume the variable represents nonzero real numbers. (m^5m)^-7/(m^-32n^8)

    asked by Anonymous
  45. business

    A $1,000,000 face T-bill with 40 days to maturity is priced at $985,000. Compute the discount yield and the bond equivalent yield

    asked by Anonymous
  46. Math correct

    AM I RIGHT?? simplify (2x^2y^2z)^2(x^4y)^5 I CAME WITH 4x^13y^9z^2 FOR THE ANSWER.. convert the number to scientifc notation 13,550,000,000 I CAME WITH 1.355x10^9 FOR THE ANSWER

    asked by Bryan
  47. science

    I am having trouble with Restate the problem in terms of the following: Manipulated variable Constant (control) variables Principles of experimental design State in correct form the hypothesis you intend to demonstrate. I have conducted the experiment but

    asked by pookie
  48. spelling

    unscramble these words, the ending Sometimes us surprise with.

    asked by poop
  49. psychology

    In both parents are carriers of PKU A one child out of four will develop the disorder B none of the children will develop the disorder C their daughters are more likely to develop the disorder than their sons are. D all of their children will develop the

    asked by ourania
  50. psychology

    Leon maintains that children have an innate and natural curiosity. If Leon is an educator who wishes to apply his ideas to teaching methods, he has primarily involved himself in the A nature-nurture controversy B active-passive controversy C

    asked by ourania
  51. Finance

    National Telephone and Telegraph (NTT) Company common stock currently sells for $60 per share. NTT is expected to pay a $4 dividend during the coming year, and the price of the stock is expected to increase to $65 a year from now. Determine the expected

    asked by Anonymous
  52. Math check

    Write the number without exponents 8.83x10^11 88,300,000,000

    asked by Anonymous
  53. precalculus

    show that (-1,1), (9,4), (20,6) and (10,1) are the vertices of a rhombus and then find the area of this rhombus?

    asked by dave
  54. math

    25 over 100 = n/100 how do i solve for n?

    asked by Devon
  55. Calculus

    Washer Method: y=x^3, y=1 ,x=2 aroud the Y axis

    asked by jack
  56. science

    what are 5 facts on pulleys?

    asked by breakfast
  57. algebra

    I'm a little confused on how to solve this: The number of cricket chirps per minute is given by N(t) = 7.2t - 32 Where t is the temperature in degrees Celsius. a. Graph the equation N(t) = 7.2t - 32 I have learned a few ways to graph equations. One way

    asked by Celina
  58. Scince

    am having trouble with Restate the problem in terms of the following: Manipulated variable Constant (control) variables Principles of experimental design State in correct form the hypothesis you intend to demonstrate. I have conducted the experiment but I

    asked by pookie
  59. Math

    convert the number to scientific notation. .0000000009

    asked by Devon
  60. Economics

    Pls advise.. The max units of good A is 180 The max units of good B is 60 In general terms, what happens to the opportunity cost of good A as the output of good A increases? In general terms, what happens to the opportunity cost of good B as the output of

    asked by Jonathan
  61. Physics

    Why is the momentum in a spaceship traveling in space not conserved? Can someone please explain? thanks

    asked by mw
  62. physics

    When I toss a ball straight up, it travels up, stops, and then falls back to by hand. When it stops to change direction, how long is it stopped?

    asked by Johnny
  63. Hospitality & Tourism

    what is a word or words for this scrambled letters - et eaidtaernegvosanurr

    asked by Ryder
  64. Geography

    What are the four different types of monarchies?

    asked by Mariz
  65. math

    multiply and write answer without exponents (3x10^6)(2x10^4) Is the answer 60,000,000 ?

    asked by Anonymous
  66. Physics

    the question is to write down a relationship for the potential energy of a body of mass m, when it is a distance r from the center of mass M and radius R.explain all symbols used and show that if a body is to escape the gravitational influence of the

    asked by Anya
  67. psychology

    If you were attempting to explain to Jake how a chromosome looks, you would most accurately tell him it's like a A cone B flexible rod C sphere D ladder I believe the correct answer is D

    asked by ourania
  68. Economics

    What are the principles of economics invloved in producing price floors + cielings?

    asked by Kayla
  69. Physics

    For a child's swing in lightly damped SHM, I am given the time period and a value for g; (as well as the mass.) with just these, can i rearrange the equation: T (4s)= 2pi times sqrt l/g to calculate the length of the swing? I believe i have (3.98m), but

    asked by charlie
  70. geography

    How many miles does Argentina extend from east to west? "" north to south?

    asked by jen
  71. math

    Question: Just about everyone in any form of business today has seen at one time or another a Power Point Presentation. Do you think this type of "visual aid" is being overdone and consequently, doesn't have the impact it used to have?

    asked by meshelle
  72. physics

    the coefficient of kinetic friction between the block and inclined plane is 0.28 and angle è = 65°. What is the block's acceleration (magnitude and direction) assuming the following conditions? (a) It is sliding down the slope. m/s2 (b) It has been given

    asked by help
  73. science

    Would the following question apply in Science (or only Physics?): Why liquid soap dispensed through a small spout by pressing on it, solidifies interfering with its smooth ejection? Thanks very much!

    asked by Pietra
  74. Math correct

    Subtract.. (8x^4+5x^3-6)-(2x^2-2x+6) I got 8x^4+5x-2x^2+2x-12 convert the number to scientific notation. 19,450,000,000 I got 1.945x10^10

    asked by Bryan
  75. psychology

    Dr Smartz has been intensely engaged in a study of the twins Annete and Brad for the last two years. You would most accurately say that Dr Smartz is engaged in a,an A gender experiment B correlational study C cross-lagged method D case study I believe the

    asked by ourania
  76. Microeconomics

    Using the information below answer the following questions. If demand is :Qd = 400.00 - 15.00P and Supply is: Qs = 50.00 + 15.00P Where: Qd = quantity of the good demanded. Qs = quantity of the good supplied. P = price of the good. Part 1: The equilibrium

    asked by Alex
  77. match check

    Solve the following equation. 3(2x-6)=(6(x-3) a)0 b)1 c)all real numbers d)no solution is it a) 0? Write the number without exponents 3.44X10^10 is it 344,000,000

    asked by Anonymous
  78. Math

    The following table gives the winning percentages of the top five coaches in NFL history,what fraction of his games has each coach won? Don Shula 0.676 George Halas 0.672 Tom Landry 0.606 Curly Lambeau 0.624 Paul Brown 0.667

    asked by Shirley
  79. psychology

    Sperm cells carrying the Y chromosome will A always result in the conception of a female baby B will result in the conception of twins more often than those carrying an X chromosome C typically result in children with brown eyes D usually carry less

    asked by ourania
  80. Math

    Can 606/1000 be reduced further than 303/500?

    asked by Tim
  81. math check

    Simplify 1) (5t)(5t)^3 My answer: 5t^15 Write the number without exponents 2) 8.78x10^5 My answer: 878,000,000 Multiply. 3) (x+9)^2 My answer: 9x^18

    asked by bryan
  82. Math Check

    Multiply 1)8t^2(t-t^2+7t^3) My Answer: 8t^3+-8t^4+56t

    asked by bryan
  83. psychology

    Jennifer doesn't menstruate. In searching out the causes of her problem, a doctor could most safely ignore A a nonproduction of estrogen B the importance of Jennifer having only one X sex chromosome C the possibility of Turner's syndrome D the possibility

    asked by ourania
  84. MAth

    how do i find the domain and range of equations? example: f(x)=ab.solute value of x-3. f(x)=square root 36-x^2 g(x)=-2x+2. how would i know what the domain and range is of these. could i use a graphing calculator to tell me the domain and range??

    asked by Jamie Lynn
  85. spelling

    ho do you make a "f" in cursive

    asked by austin
  86. Math

    In 1995, 7.4 million people used the internet. The growth rate is 59% each year. What is the general equation of the function?

    asked by Paula
  87. sciencec

    What is the one thing that does not change in a controlled experiment?

    asked by chase
  88. Math

    How many centimeters is 4 inches?

    asked by Tracy
  89. math

    If i place a dish of ice outside in the sun, The ice has a mass of 0.59 kg and a surface area of 0.039 m2. Assuming that the ice is originally at 0 °C and using my answer for part b, which was 1370w/m^2 * 49 * 0.039m^2 = 26.18 watts, How long do i have to

    asked by trigger
  90. science

    other than jupiter having a solid core like earth what else does jupiter have in common with earth?{please help}

    asked by shayla
  91. To DAMON.. (RE: Phys question u solved yesterday)

    YOU DID The tension in the string is the force exerted down by the falling disk and up by whatever is holding the disk. They are equal and opposite. If the disk is a yo-yo, that force is exerted by your finger on the string to give the tension. Force up on

    asked by Stacu
  92. Calculus

    Using the Disk Method or washer method (im not sure which one) Find The volume of y=x^3 , y=1 , x = 2 revolving around the X axis

    asked by Andrew
  93. sci

    your opinion, is relative dating accurate? i say yes because .......

    asked by troyer0269
  94. psychology

    Monozygotic twins A share 50% of their genetic material B are formed from two eggs but fertilized by the same sperm C are as different as typical sibling are D will have vary similar physical appearance I believe the correct answer is D

    asked by ourania
  95. psychology

    Regarding causes of infertility, it is the case that A irregular or failed ovulation is the most common cause of female infertility B infertility lies in fertility problems of the male partner in about 12% of cases. C endometriosis result from repeated

    asked by ourania
  96. IPC Science

    Um.... My question is simple...What should you study the day b4 a Final?

    asked by Crystal Torres
  97. math

    how do you write 2 3/8 as a percentage/

    asked by CC
  98. spelling

    form a sentence with the 2 conjunction words she's and cann't

    asked by roma
  99. IT 221

    How can a project manager be sure that he or she has chosen the correct metrics to assess project performance? Give at least three examples.

    asked by Sam
  100. 5th grade

    how to put together a crossword puzzle for the state of Pennsylvia

    asked by Alex
  101. goe./writtng

    does this make sence?: Argentina is a beautiful country filled with vast geography.

    asked by jenny
  102. Middle school Engllish

    My son recently had an English test where he was marked incorrectly, but I think he was correct. I just need some verification. The question: "The whole neighborhood watched him climb in his old pickup and ______ down our street at full speed." The word to

    asked by Jin
  103. CRT/205

    Describe a time when your moral values influenced the way you responded to an issue. What differences did you notice between your moral reasoning process and your logical reasoning process? What were the possible outcomes and consequences of your decision?

    asked by Anonymous
  104. science

    what wouldbe some examlpes on light and newtons??

    asked by shade
  105. Math

    In 1995, 7.4 million people used the internet. The growth rate is 59% each year. What is the general equation of the function?

    asked by Paula
  106. World Cultures grade 7

    Please help me asap! I have an essay due tommarow and I need to find out the 10 criterias a country has to follow in order to be considered a civilization! I have 5 minutes! Please help

    asked by Savannah
  107. science

    please give me a website about volcanoes

    asked by Anya
  108. geography

    Where would I find: a description of argeninte life?

    asked by jen
  109. college

    what is this answer (x)*y+p+q-r=7410852963*1496324789245484445

    asked by the world will never know
  110. history project

    how to i get started on a middle ages shield?

    asked by shyanne
  111. Writing

    8th graders have a writing test coming up and they have to write an expository essay. The biggest problem is, I don't know what that is...help! If you can tell me and also give me an example. Thanks -MC

    asked by mysterychicken
  112. history

    What parallel patterns do the law of april 6 and the intolerable acts have in common? How are they different?

    asked by JOe
  113. 9th grade american government

    What is required to become secretary of state? How it affects our govt? Job description? Salary? When 1st established? Where located? Why is it important?

    asked by nay
  114. science

    what are 5 facts on screw?

    asked by marisol
  115. Math

    I have a question, if f(x)=x/2 and g(x)=3x+1 find: a)(f+g)(x). i do x/2+3x+1, how do i do this?? then how do i subtract those numbers, an how do i multiply them??

    asked by Jamie Lynn
  116. college

    Sherri Russell College Mathematics1 December, 16, 2008 Interpreting Graphs and Intercepts Introduction: Graphs are created so that we can quickly derive meaningful information from them. They provide a visual representation of the data and, therefore, an

    asked by sherri
  117. spelling

    What is an idiom that goes with this sentence?

    asked by Anya
  118. space

    choose five elements of the universe and tell why they are amazing and wonderous

    asked by james
  119. chem

    why are sig. figs important?

    asked by Natash
  120. georgia studies

    explain how geography helped to create regional diffrences among the american colonies.

    asked by emily
  121. Math

    These sets of numbers all follow logical patterns. Which numbers replace the question marks? ( 1, 8, ?, 64, 125 ) ( 00001, 00011, 00101, ?, 01001 ) ( 17,23,?,18,20,25,21,9,15,16 )

    asked by Tina
  122. Math

    These sets of numbers all follow logical patterns. Which numbers replace the question marks? ( 00001, 00011, 00101, ?, 01001 )

    asked by Tina
  123. Calculus

    washer method!? Find the volume of y=x^2+3, y=3, between [0,2] around y=3

    asked by Andrew
  124. scince

    waht is the name of the hair in side your ear that vibrats so you can heah

    asked by savannah
  125. social studies

    how meny fingers am i holding up

    asked by jackson
  126. literay

    what kind of emergencies could there be on spacecraft?

    asked by adeeba
  127. Math IB SL

    Factorize: 2x^2-xy-6y^2 ????

    asked by vilmers
  128. spelling

    I don't understand what to do on this: Words that begin with the "be" syllable.

    asked by Anya
  129. math

    what is the equation for arc length?

    asked by john
  130. Science

    What does a rooster do to defend itself when being attacked?

    asked by Donna
  131. Math IB SL

    2^2x . 5^(x-3)=10^(x+2)

    asked by vilmers
  132. spanish

    how do u say estoy in the yo form in the past

    asked by samantha