Questions Asked on
October 11, 2012

  1. math

    write the ratio 34 miles to 2 gallons in the simplest terms.

    asked by Anonymous
  2. Chemistry

    The molar enthalpy of combustion of glucose is -2803 kJ. A mass of 1.000 g glucose is combusted in a bomb calorimeter. If the calorimeter contains 875 g H2O and the bomb has a heat capacity of 457 J/C, what is the temperature increase of the bomb

    asked by Kyle
  3. literary

    what does the three column house icon mean in language arts

    asked by Anonymous
  4. Chemistry

    The molar enthalpy of combustion of glucose is -2803 kJ. A mass of 1.000 g glucose is combusted in a bomb calorimeter. If the calorimeter contains 875 g H2O and the bomb has a heat capacity of 457 J/C, what is the temperature increase of the bomb

    asked by Kyle
  5. chemistry ------ flame test-------------

    Did the nitrate ion effect the color emission of the solution ? how did you decide ? my answer: No , because The nitrate ion is the oxidizing agent in the compound without it you could not burn the chemicals and you could not produce a spectrum so there

    asked by Maria
  6. math

    18/x for x = 0.12 answer ?

    asked by destiny
  7. math

    10.8/x for x = 0.03

    asked by destiny
  8. Physics

    A 60kg skier starts from rest at a height of 20m above the end of a ski-jump and leaves the ramp at an angle of 28 degrees. Neglet air resistance and assume the ramp is frictionless. A) What is the max height (h) of his jump above the end of the ramp B)If

    asked by Guy
  9. math

    9.18/x for x =-1.2

    asked by destiny
  10. Chemistry

    The molar enthalpy of combustion of glucose is -2803 kJ. A mass of 1.000 g glucose is combusted in a bomb calorimeter. If the calorimeter contains 875 g H2O and the bomb has a heat capacity of 457 J/C, what is the temperature increase of the bomb

    asked by Kyle
  11. Math

    If f(x)=ax^2+b f(-3)=-3 and f'(-3)=2 find the coefficients a and b.

    asked by Larry
  12. CIS

    Draw a flowchart or write pseudocode to represent the logic of a program that allows the user to enter a value. The program multiplies the value by 10 and outputs the result.

    asked by Sonya
  13. chemistry ------------ chemistry -------

    when you were heating milk on the stoven you accidentally spilled some milk on the burner . what color would you see ? why would you see that color? My answer : Intense yellow . because milk has sodium , sodium is intense yellow . is this right ?

    asked by Maria
  14. chemistry ---------chemistry

    What color did your glass -stirring rod emid ? what does this indicate about glass- strirring rod ? Ans: galss stirring rod emids orange . but i don't know the ans 2 .

    asked by Maria
  15. Chem Hmwrk

    For the reaction HCl + AgNO3 → ,write the balanced formula equation

    asked by Jena
  16. chemistry -------------chemistry

    If a flame on the candle burns red , how does energy of that flame compare to that of the Bunsen burner flame ? and why ? ans:The Bunsen burner flame has higher temperature than candle’s flame . Because flame of candle emit red ,and red has the least

    asked by Maria
  17. Chem Hmwrk

    Iodine can be prepared by bubbling chlorine gas through an aqueous solution of sodium iodide: 2NaI(aq) + Cl2(g) → I2(s) + 2NaCl(aq) How many grams of sodium iodide are required to produce 98 g of iodine?

    asked by Jon
  18. Chem- Percent Yield

    When HgO is heated, it decomposes into elemental mercury and diatomic oxygen gas. If 42.9 g of Hg is obtained from 70.1 g of the mercuric oxide, what is the percent yield of the reaction?

    asked by Lara
  19. math-algebra 2

    What are the solutions of the quadratic equation? 2x2 – 16x + 32 = 0

    asked by kendra
  20. science

    How would I use the particle theory of matter to explain air having mass? I can't figure out a way to put it into words

    asked by Cherie
  21. Chemistry

    The amount of energy released by burning a fuel source, measured in energy per mass, is called the fuel value. If all the energy obtained from burning 1.30 pounds of methane (fuel value is 11.97 kcal/g) is used to heat 122.0 kg of water at an initial

    asked by Brittany
  22. US and Global Economics

    (This homework question was removed due to a copyright claim submitted by K12 Inc.) Please help?

    asked by BreAnne
  23. Physics

    A 67-kg man standing on a scale in an elevator notes that as the elevator rises, the scale reads 840 N. What is the acceleration of the elevator?

    asked by Anonymous
  24. child day care

    1. For your day care center, you'll have to develop policies to share with the parents concerning all of the following issues except A. staff vacations. B. hours of operation. C. guidance practices. D. enrollment.

    asked by tin
  25. Math

    I don't get the first problem of my homework. We learned three lessons today, the increase, decrease, and finding the base number. But i don't know which one I should use. Please help with this problem: There are 12 girls in Mr. Cooper's class. The girls

    asked by Losa
  26. Algebra

    2n-11=m/4 n=m/-3 Solve for the variables using substitution

    asked by Marisa
  27. Chemistry

    Hi I need with with a prelab calculation for a Hydrate Crystal lab and I am so confused @_@ You don't really need to solve it if you don't want to, I just need an example on how to do these problems 1) Find the mass of the water that evaporated upon

    asked by Sira
  28. Chemistry

    Silver Nitrate and Sodium carbonate has a known concentration of 0.500M. preparing 25ml of 0.500m. Calculate the mass to the nearest 0.01g.

    asked by Sarah Taylor
  29. matn

    JUSTIFIES A STEP IN THE SOLUTION OF AN EQUATION 4n+(7+n)=52 4n+(n+7)=52 (4n+n)+7=52 5n+7=52 5n+7-7=52 5n=45 5n/5=45/9 n=9

    asked by JR
  30. math

    JUSTIFIES A STEP IN THE SOLUTION OF AN EQUATION 4n+(7+n)=52 4n+(n+7)=52 (4n+n)+7=52 5n+7=52 5n+7-7=52 5n=45 5n/5=45/9 n=9

    asked by JR
  31. English

    1. The grass grows thick in the garden. 2. The grass grows thickly in the garden. 3. The grass grows thin in the garden. 4. The grass grows thinly in the garden. (Which expressions are correct and grammatical?)

    asked by rfvv
  32. trigonometry

    a flagpole 25 feet high stands on the top of a tower, which is 105 feet high. at what distance from the base of the tower will the flagpole subtend an angle of 3 degrees, 20 minutes?

    asked by Cathy
  33. c++

    Your Mathematic school teacher want to use a program that can read the name and the mark of a student. Your teacher want the program to automatically find the grade of the mark and display the result(name, mark and grade). Help your teacher to develop a

    asked by sarah
  34. Math

    Find the probability that if the letters of the word "parallel" are randomly arranged that the L's will not be together. In class, I'm studying permutations and combinations. The solutions stated the no. of permutations where 3 L's are together is 6!/2!.

    asked by Candice
  35. english

    hypothetical syllogisms can have two valid and two invalid structures. The two valid structures are affirming the antecedent or modus ponens and denying the consequent or modus tollens. The two invalid structures or fallacies are denying the antecedent and

    asked by m
  36. Math (Probability)

    An urn A contains 6 white balls and 7 black balls. And urn B contains 8 white balls and 6 black balls. A person draws a ball at random from one of the two urns. It turns out to be black. What is probability that the ball was drawn from urn A? (A) 7/14 (B)

    asked by AngelG
  37. Math (Probability)

    An urn A contains 6 white balls and 7 black balls. And urn B contains 8 white balls and 6 black balls. A person draws a ball at random from one of the two urns. It turns out to be black. What is probability that the ball was drawn from urn A? (A) 7/14 (B)

    asked by AngelG
  38. Mathematics

    Solution of middle terms expansion of (2x^2+1/x)^9

    asked by Mandy
  39. Maths Percentage (6th Grade)

    David has $5 in his wallet. This was 10% of the amount that he received from his mother. Find the total amount of money that David received from his mother. 35% of the number of books Ibrahim owns are fiction boos, find: a.) the total number of books he

    asked by Sam
  40. math

    Please solve this word problem, It will take at least 360 points for Kiko"s team to win the math contest. The scores are 94,82, and 87, but one of Kiko's teammates lost 2 of those points for an incomplete answer. How many points must Kiko earn for her team

    asked by Ann
  41. subject verb agreement

    mike felt bad or badly after beating his best friend in a tennis match

    asked by Anonymous
  42. Writing

    Can you proofread this writing? I also need a good title. Theme, what comes to mind when you hear this word? When I hear this word, I think of the overall meaning or lesson of a story. In the story, “Two Kinds, by Amy Tan there were many themes that fit

    asked by Tatyiana
  43. Stats

    Let Y be a random number between 0 and 1 produced by the idealized uniform random number generator with density curve pictured in the following figure: P(

    asked by George
  44. Linear algebra

    Show that the origin is the only equilibrium point of the system? X=ax+by Y=cx+dy Wherea,b,c and d are constants, with ad-bc not aqual to 0(zero) Please show me how to do this problem Please show me the work

    asked by Fatima
  45. maths

    A box contains 20 balls, of which 5 are red, 5 are blue, 5 are white and 5 are green. Suppose a sample of 5 balls are chosen without replacement. a) find the probability that the sample contains balls of all the same colour (answer is 4/ 20C5, but why isnt

    asked by Candice
  46. physics

    arthur is riding a horse at a velocity of 4m/s.four seconds after,he is already traviling at a valocity of 12m/s. what is his acceleration?

    asked by benedict
  47. statistics

    7. Give and interpret the 95% confidence interval for the hours of sleep a student gets

    asked by Anonymous
  48. st.bernard

    arthur is riding a horse at a velocity of 4m/s.four seconds after,he is already traviling at a valocity of 12m/s. what is his acceleration?

    asked by benedict
  49. chem

    what is the mass in grams of the following 6.78 mol of NaI

    asked by Gloria
  50. math

    If you run 1 mile on Monday and then double everyday how many miles will you run by friday?

    asked by mj
  51. science

    The volume of a 500 g sealed packet is 350 cm cube . Will the packet float or sink in water if density of water is 1 g cm raised to -3 ? What will be the mass of water displaced by this packet ?

    asked by ujjval
  52. Polynomials

    A rock is thrown upward at a speed of 10 metres per second. The height of the rock above the ground is given by the formula h=10t-2.0t². Where h is the height in metres above the ground and t is the time in seconds. Then what is height after 5 second?

    asked by Amanda
  53. math

    A stock drops 30 points in five days. Use integers to find the new level of the stock. The stock started at 480 points. I have been using a number line to shoe division but I am stuck on this one. Any help would be great.

    asked by Cherie
  54. English Literature

    What is ironic about the rioters' wish to kill Death? A.Death is the one who seeks people to kill. B.The rioters should be concerned about each other's greed. C.The rioters believe they can be successful. D. Death and the rioters are thieves. I think the

    asked by Anon
  55. math

    which property is demonstrated here? 3455*1=3455

    asked by Anastasia
  56. PHYSICS

    A factory worker pushes a 30.7 crate a distance of 4.0 along a level floor at constant velocity by pushing downward at an angle of 31 below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.26. What magnitude of force

    asked by HANNE
  57. Chemistry

    How do you do this problem? Calcuate the mass of CuCl2*5H2O required for preparing 400mL solution that of .25M in chloride ions.

    asked by Tiffany
  58. Stats

    Calculate the expected value and standard deviation of X, the number of on the job accidents: Accidents 0,1 2 Probability .5, ?, .2 P(X=1) = E(x) = µx = Standard deviation =

    asked by George
  59. physics

    The maximum speed of a child on a swing is 4.90 m/s. The child's height above the ground is 0.525 m at the lowest point in his motion. How high above the ground is he at his highest point?

    asked by Grace
  60. physics

    Prove that for an earth satellite,the ratio of its velocity at apogee to its velocity at perigee is the inverse ratio of its distances from apogee and perigee.

    asked by veera
  61. LATIN

    Filio meo multi amici erunt I have trouble understanding what this means exactly. This is all I have as a literal translation My brother many friends there are/ they are

    asked by Dee
  62. chemistry

    what is the chemical name and lewis structure of NO3 -2

    asked by Amanda
  63. physics

    A 800. kg car starts from rest and accelerates uniformly to 19.0 m/s in 22.0 s. Assume that air resistance remains constant at 340 N during this time. Find (a) the net force on the car

    asked by Anonymous
  64. Physics

    Mathematically determine the resultant force if two forces A and B act on an object. Force A is 85N and is at an angle of 20• to the horizontal. Force B is 125N and is at an angle of 60• to the horizontal.

    asked by Christian
  65. physics

    A 0.70 kg block along a horizontal track has a speed of 1.10 m/s immediately before colliding with a light spring of force constant 3.50 N/m located at the end of the track. (a) What is the spring’s maximum compression if the track is frictionless?

    asked by Anonymous
  66. chemistry

    Calculate the number of moles of Cl atoms in 1.81×10e24 formula units of magnesium chloride,MgCl2.

    asked by troy
  67. LATIN

    How do I say "belong to" in Latin?

    asked by Dee
  68. science

    A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials’ boat pulls up next to the spy’s boat, both boats reach the edge of a 5.3 m waterfall. The spy’s speed is 16 m/s and the officials’

    asked by Anonymous
  69. math

    How am I supposed to know where to put the decimal in the answer to,.947+.284+.034?????????????????

    asked by Math Geek
  70. math

    The home economics team has 6 3/4 feet of fabric for a class project. They need 3/4 of a foot of fabric for each piece in the project. How many pieces will they be able to cut?

    asked by dede
  71. math

    Dear Ms.Sue, Is the answer to .947+.284+.034=1.265? Oh I almost forgot THANK YOU SO MUCH!!!!

    asked by Math Geek
  72. trigonometry

    verify the identity: (cosx/1+sinx) + (1+sinx/cosx) = 2secx

    asked by mikey
  73. Chem

    What is the [H3O+] of an aqueous solution having a pH of 11?

    asked by Stacy
  74. physics

    An airplane of mass 1.6 x 10^4 kg is moving at 58 m/s. The pilot then revs up the engine so that the forward thrust by the air around the propeller becomes 7.0 x 10^4 N. If the force exerted by air resistance on the body of the airplane has a magnitude of

    asked by Amy
  75. College Math

    In a certain triangle the measure of one angle is triple the measure of a second angle but is 110 degrees less than the measure of the third angle. [The sum of the measures of three interior angles of a triangle is always 180 degrees.] What is the measure

    asked by Richard D
  76. Basic algebra

    The length of a rectangle is 9 feet longer than twice the width. If the perimeter is 90 feet, find the length and width of the rectangle?

    asked by Anonymous
  77. health

    Do you think that all six dimensions of health are equally important?

    asked by michelle battle
  78. College Math

    Simplify the algebraic expression 3xz + 4xy – 2yz + xy + 5yz – 9xz and evaluate it for x = 3, y = -2, z = -5. Identify the variables, constants, and coefficients in the simplified expression.

    asked by Richard D
  79. College Math

    Simplify the algebraic expression 3z3 – 5x2 + 2 – 4y2 + 6x2 – 4z3 – 7y + 12 – 2x and evaluate it for x = -2, y = -3, z = -4. Identify the variables, constants, and coefficients in the simplified expression.

    asked by Richard D
  80. universsity of karachi

    A graduate class consist of six students. what is the probability that exactly three of then are born in either in april or in october?

    asked by sania
  81. Algebra2:O

    Help? Write the standard form of the equation of the circle with the given center and radius. 14. center (-2, 0) and r = 3

    asked by Victoria
  82. Algebra2

    Find the center and radius of the given circle and graph it. 1. x^2+y^2+10y+21=0

    asked by Victoria
  83. Anthropology

    Before colonialism, most colonized people lived in: (Points : 1) general peace and tranquility static and unchanging cultures a state of balance with nature constant warfare and violence

    asked by Geraline
  84. Algebra2

    Determine if the given relation is function or not. Give its domain and range. 16. (-1, 2), (1, 3), (-1, 4), (2, 5) 17. (1, 1), (2, 2), (3, 3), (4, 4)

    asked by Leaaf
  85. Algebra2

    Help? Decide whether y is a function of x. 1. 5x-y=10 2.x^2+y^2=4

    asked by Lauran
  86. Economics

    You have opened your own word processing service. You have already bought a special computer needed for word processing and paid $5,000 for it. However, due to the cost changes in the computer industry, the current price of an equivalent machine is $2,500.

    asked by Damone
  87. Physics

    A 63 kg student is standing atop a spring in an elevator that is accelerating upward at 2.5 m/s^2 . The spring constant is 2700 N/m. By how much is the spring compressed?

    asked by Guy
  88. Anthropology

    Colonizers successfully changed the colonized from subsistence activities to wage labor with: (Points : 1) rewards and incentives. taxes that had to be paid in cash. persuasion and education. mutual trust and affection

    asked by Geraline
  89. AP Chemistry

    What effect would a catalyst have on the rate of reaction for the decomposition of ozone?

    asked by Corneil
  90. english 9 th

    2. Choose a story element, such as the use of a symmetrical plot, a certain kind of narrator, or irony, and explain how and why it is used in one of the stories in the unit.

    asked by Anonymous
  91. algebra

    find the maximum or minimum of the following quadratic function: y =x2 - 10x + 25

    asked by Desiree
  92. finance

    You buy an 8% annual coupon bond from CARRIS Inc. that has a 25 year maturity and a required return of 12%. The par value is $1,000. You sell the bond five years later when the required return is 10%. What is the beginning price of the bond when it is

    asked by Jill
  93. foreign language

    Idenitiy the Phrase used in the following sentence. Staci decided to visit her aunt and uncle during the summer

    asked by Anonymous
  94. Chemistry(Please check, thanks)

    For C4H10O a constitutional isomer can be written as C-C-C-C-O-H with hydrogens also coming off of the 4 carbons. I know that this is an alcohol. I need to know if there are stereoisomers for this other than conformers. I think that there are stereoisomers

    asked by Hannah
  95. math

    kara needs 35 for an aquarium for 6 fish. how can she pay with the least ten and one dollar bills?

    asked by rob
  96. Chem

    Balance C3H6 + O2 > H2O + CO2

    asked by Stacy
  97. algebra

    The reflection of the tree in the lake is 49 in long. If your shadow in the lake is 14 in long and you are 5 ft, how tall is the tree? Put your answer as inches.

    asked by jade
  98. algebra 2

    -3u+7/2=-4/3u-5/4 solve for u in simplest form.

    asked by Lacy
  99. physics

    a ramp is 2.8 m long and 1.2 m high. how much power is needed to push a box up a ramp in 4.6 s with a force of 96 N?

    asked by breamontri
  100. Calculus

    The length of rectangle is increasing at a rate of 8cm/s and its width is increasing at a rate of 3cm/s. When the length is 20cm and the width is 10cm, how fast is the area of the rectangle increasing?

    asked by Chelle
  101. English-Ms. Sue please

    hypothetical syllogisms can have two valid and two invalid structures. The two valid structures are affirming the antecedent or modus ponens and denying the consequent or modus tollens. The two invalid structures or fallacies are denying the antecedent and

    asked by m
  102. cost and management accounting

    Choice any company and explain the five ways of applying cost and management in company process system.

    asked by columbus
  103. algebra 2

    3/-8 * 2/7 * (-3) Its multiplying fractions, but it wants the answer in simplest form!

    asked by Lacy
  104. Chemistry

    Calculate the heat capacity of a calorimeter if th ecombustion of 4.665 g of benzoic acid led to an increase in temperature of 7.148 C.

    asked by jim
  105. math

    If there is 1/6 of a cake and Mitchell only wants 3/12 of it, how much of the cake does he want

    asked by Sally
  106. algebra 2

    Solve for x: x=4+x divided by y-3

    asked by anna
  107. English

    what does it mean when someone says "im biased towards the colour red"?

    asked by Mohammad
  108. Chem

    How would we make 500mL of a 1.5 percent w/v solution of KC1 in water?

    asked by Stacy
  109. Algebra

    solve by elimination: 6a+2b = -48 -6a+b = 57 What is the solution set ( , )?

    asked by Richard
  110. Physics

    How does the cochlea sense sound? •Snail shaped tube lined with receptor cells which transmits signals to the brain. Correct?

    asked by randomchik
  111. Physics

    Identify the causes of conductive and sensorineural hearing loss. I have no idea. Please help.

    asked by randomchik
  112. Supertaster......

    What makes a supertaster?

    asked by rawr... im a dinosaur.... rawr
  113. Chem

    At constant temperature, a sample of 3.0L of Argon gas at 2.0 atm is compressed until the new pressure is 3.524 atm. What is the new volume?

    asked by Stacy
  114. Chem

    In carbon monoxide poisoning the hemoglobin is incapable of transporting oxygen to the tissues. How does oxygen get delivered to the cells when the patient is put into a hyperbaric chamber?

    asked by Stacy
  115. Physics

    An 52.0 N box of clothes is pulled 7.3 m up a 30.0° ramp by a force of 103 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy.

    asked by Angela
  116. Algebra

    I cannot solve the problem please help me. I'm suppose to set the equations up to solve for t. x = y + rt + at^2/2 Even when I plug in the values I don't get the answer. x = 16.4 y= 0 r= 0*cos(45)a=0 t is suppose to equal 2.32 if I set the problem up

    asked by Angie
  117. Physics

    An 52.0 N box of clothes is pulled 7.3 m up a 30.0° ramp by a force of 103 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy.

    asked by Angela
  118. Chem

    How would we make 500mL of a 1.5 percent w/v solution of KC1 in water?

    asked by Stacy
  119. history

    The capital of the Southern Song Empire was the city of Kaifeng Beijing X'ian Hangzhou Shanghai I think its Hangzhou but any help would be greatly appreciated!

    asked by Lisa
  120. Math

    A certain computer can perform 10 to the 5th power calculations per second. How many calculations can it perform in 10 seconds?

    asked by Larry
  121. Chem

    To a tank already containing N2 at 2.0 atm and O2 at 1.0 atm, we add an unknown quantity of CO2 until the total pressure is 4.6 atm. What is the partial pressure of the CO2?

    asked by Stacy
  122. science

    A point object is acted upon by forces of 4N, 5N and 6N is in equilibrium. IF=f the 6N force is removed, what is the resultant force on the object now? I really want to know how tow find relationship between 3 forces, and is there anything to do with cos

    asked by liam
  123. history

    Which of the following was a problem faced by the average Chinese citizen during the Song dynasty? the shrinking use of the civil service exam and thus the lack of opportunity to obtain a government position the control of the Chinese treasury by northern

    asked by Colleen
  124. math

    perimeter = 36 2 x find area please help

    asked by shania
  125. math

    I am a four digit number. My tens digit is a 0. My ones digit is an odd number that is less then my hundrads digit. If you multiply me by 5, the estimated produt is 20,000. What number am i?

    asked by Anonymous
  126. math

    I need to know how to write a word expression for 535 divided by 21

    asked by sean
  127. chem

    To a tank already containing N2 at 2.0 atm and O2 at 1.0 atm, we add an unknown quantity of CO2 until the total pressure is 4.6 atm. What is the partial pressure of the CO2?

    asked by stac
  128. chem

    Define aqueous solution.

    asked by stac
  129. Chemistry

    If 100J are added ti 20g of water at 30degrees Celsius, what will be the final temperature of the water

    asked by S. Sook
  130. Physics

    Two cars pass each other traveling at the same speed. One car has a constant velocity of 18.0 m/s east. The other car has a constant acceleration of 3.00 m/s^2, west. How much time will have elapsed until the cars are 128 m apart?

    asked by Alex
  131. science

    substance a has a boiling point of 80% C and a density of 3.5 g/cc what is it and why

    asked by armando
  132. Science 8R - help!!!!

    if you tear a piece of material in haft, how is the density affected?

    asked by Laruen
  133. Chemistry(Urgent, please check)

    For C4H10O a constitutional isomer can be written as C-C-C-C-O-H with hydrogens also coming off of the 4 carbons. I know that this is an alcohol. I need to know if there are stereoisomers for this other than conformers. I think that there are stereoisomers

    asked by Hannah
  134. science

    82 liters plus 3.876 liters is what?

    asked by bryan
  135. Chem

    Ethanol, C2H6O, is very soluble in water. Describe how water dissolved ethanol.

    asked by Stac
  136. Chem

    Calculate the heat capacity of a calorimeter if th ecombustion of 4.665 g of benzoic acid led to an increase in temperature of 7.148 C

    asked by Dave
  137. math

    How can knowing the multiplication properties help you evaluate 5 * ( 20 * 63 )

    asked by lorenzo
  138. Science

    332 dg = how many mg?

    asked by Anthony Ladao
  139. English

    Posted by rfvv on Thursday, October 11, 2012 at 3:39am. 1. The grass grows thick in the garden. 2. The grass grows thickly in the garden. 3. The grass grows thin in the garden. 4. The grass grows thinly in the garden. (Which expressions are correct and

    asked by rfvv
  140. Calculus 2

    how do I find the fluid force of a vertical semicircle that has been divided into three equal sectors of 60 degrees each. I know what the equation to find the fluid force for the whole semicircle is. but how do I find L(y) for each semicircle.

    asked by Laura
  141. chem

    Ethanol, C2H6O, is very soluble in water. Describe how water dissolved ethanol.

    asked by stacy
  142. Physical Science

    What is the force of an 18kg object accelerating at 4m/a squared?

    asked by Camaron
  143. Chem

    Calculate the heat capacity of a calorimeter if th ecombustion of 4.665 g of benzoic acid led to an increase in temperature of 7.148 C

    asked by Howard
  144. geometry

    if n(2,4)is reflected in the line y=2 the n`is (2,0) true or false and why

    asked by Dominique
  145. chemistry

    What is the H+ concentration of a solutoin that is formed by combining 335 mL of 0.110 M HNO3 with 75 mL of 0.120 M Ba(OH)2 at 25 degrees celsius?

    asked by Anonymous
  146. 7th Geo

    Where did the Maori originate from? Indonesia, Malay, Polynesia, Australia. Australia, right?

    asked by rawr... im a dinosaur.... rawr
  147. physics

    This is the situation I have been given: You are given three capacitors, one with a capacitance of 0.025 micro-farads, another with a capacitance of 0.05 micro farads, and the third with a capacitance of 0.015 micro-farads. Using only these capacitors,

    asked by Rachel
  148. English

    I need a thesis statement for the story, "Rikki Tikki Tavi" by Rudyard Kipling. I thought about using " (In) This short story, "Rikki Tikki Tavi, by Rudyard Kipling, tells of the conflict of Rikki Tikki and two cobras, as he tries to defend Teddy."

    asked by Abby
  149. Math

    How do I add, subtract, divide, and multiply integers

    asked by Taylor
  150. Physical Science

    if you tear a piece of material in haft, how is the density affected? sorry i repost it, just the title

    asked by Laruen
  151. physics

    A 5.84 box sits on a ramp that is inclined at 35.2 above the horizontal. The coefficient of kinetic friction between the box and the ramp is 0.27. What horizontal force is required to move the box up the incline with a constant acceleration of 4.30 ?

    asked by carol
  152. calculus

    A fence 8 feet tall stands on level ground and runs parallel to a tall building. If the fence is 1 foot from the building, find the shortest ladder that will extend from the ground over the fence to the wall of the building.

    asked by Erica
  153. physics

    A science student is riding on a flatcar of a train traveling along a straight, horizontal track at a constant speed of 12.8 m/s. The student throws a ball into the air along a path that he judges to make an initial angle of 67.0° with the horizontal and

    asked by sedef
  154. Chemistry

    Calculate the concentrations of all species in a 1.41 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10–2 and Ka2 = 6.3× 10–8. Na^+ = 2.82M SO3^2- = 1.40M HSO3^- = 0.00047M H2SO3 = OH^- = H^+ = I have

    asked by Chris
  155. Chemistry

    Calculate the concentrations of all species in a 1.41 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10–2 and Ka2 = 6.3× 10–8. Na^+ = 2.82M SO3^2- = 1.40M HSO3^- = 0.00047M H2SO3 = OH^- = H^+ = I have

    asked by Chris
  156. math

    How can knowing the multiplication properties help you evaluate 5 * ( 20 * 63 )

    asked by lorenzo
  157. Physics

    You will fire the spring gun 3 times from the first detent and measure the change in height of the (pendulum + ball) for each shot. Write the equation for the change in height of the first shot.

    asked by Natalie
  158. physics

    derive the formula v0=sqrt((deltaX)squared)*g)/2*deltaY

    asked by carlton
  159. Science

    When a car slams on its brakes what provides friction that helps the car stop? What kind of energy is produced?

    asked by Sam
  160. Christmas Island

    I need to know more about christmas island. I have research and i not getting any info on education and interesting fact in case want to live there permanent. I know about the crabs but cant find info if they bite. please help me find info, thanks.

    asked by #####rena
  161. History

    Why did slavery became a part of American culture and identity?

    asked by Darcy
  162. Physics

    a 96 kg clock initially at rest on a horizontal floor requires a 605 N horizontal force to set it in motion. After the clock is in motion a horizontal force of 547 N keeps it moving with a constant velocity. the acceleration of gravity is 9.81 m/s2 find

    asked by Susan
  163. physics

    please help :/ Three charges are fixed to an xy coordinate system. A charge of +25C is on the y axis at y = +2.7 m. A charge of -16C is at the origin. Lastly, a charge of +66C is on the x axis at x = +2.7 m. Determine (a) the magnitude and (b) direction of

    asked by antonio
  164. physics

    trying to study but stuck with this one. Two tiny spheres have the same mass and carry charges of the same magnitude. The mass of each sphere is 4.62 x 10-6 kg. The gravitational force that each sphere exerts on the other is balanced by the electric force.

    asked by alex
  165. physics

    help! Two charges A and B are fixed in place, at different distances from a certain spot. At this spot the potentials due to the two charges are equal. Charge A is 0.22 m from the spot, while charge B is 0.54 m from it. Find the ratio qB/qA of the charges.

    asked by alex
  166. physic

    A charge of -2.73 μC is fixed in place. From a horizontal distance of 0.0465 m, a particle of mass 9.50 x 10-3 kg and charge -9.56 μC is fired with an initial speed of 97.2 m/s directly toward the fixed charge. What is the distance of closest approach?

    asked by derek
  167. Math

    From these fractions choose ,or= to make a true statement 1. 11/212 8/24 Order the fractions from least to greatest 3/5 1/4 1/2 2/5 Answer: 1/3 2/5 1/2 3/5 6 3/4, 6 1/2, 6 5/6, 6 3/8 Answer: 3/8 1/2 3/4 5/6

    asked by Jerald
  168. Math

    Ramundus is making a xylophone. So far, he has bars that are 1 3/4 feet 1 7/12 feet and 1 2/3 feet long. What is the length of the longest bar 3/4? Alana practiced dancing for 11/4 hours on Monday 19/8 hours on Wednesday and 2 3/5 hours on Friday. On which

    asked by Jerald
  169. Physical Science

    After a sled has passed several times over a snowy path on a hill, the grass or dirt under the snow may begin to show through where the sled has traveled. Why?

    asked by Patrice
  170. Enviromental Science

    What effect could an uncontrollable grass carp population have on the energy pyramid of an lake environment?

    asked by Michaela
  171. physics

    A 800. kg car starts from rest and accelerates uniformly to 19.0 m/s in 22.0 s. Assume that air resistance remains constant at 340 N during this time. Find (b) the average power developed by the engine

    asked by Anonymous
  172. physics

    block A (mass 2.04kg) rests on a tabletop. It is connected by a horizontal cord passing over a light, frictionless pulley to a hanging block B (mass 3.00kg ). The coefficient of kinetic friction between block A and the tabletop is 0.215. After the blocks

    asked by george
  173. physics

    A 5.84kg box sits on a ramp that is inclined at 35.2degrees above the horizontal. The coefficient of kinetic friction between the box and the ramp is 0.27. What horizontal force is required to move the box up the incline with a constant acceleration of

    asked by helpless
  174. books

    Would this make a good Jane Eyre theme statement? "Every person searches for love & home, but only few find it." If not, how can I change it? I need help!

    asked by Cece
  175. physics

    determine the tension in each cable below. draw a force diagram for the system before solving the problem. Case A- ball suspended on one cable Case B- ball suspended on by two cables

    asked by Madison
  176. Math

    Which of the following statements is true? A. 1/2>3/4 B.1/27/8 D.3/8

    asked by Jerald
  177. English

    Posted by rfvv on Thursday, October 11, 2012 at 3:39am. 1. The grass grows thick in the garden. 2. The grass grows thickly in the garden. 3. The grass grows thin in the garden. 4. The grass grows thinly in the garden. (Which expressions are correct and

    asked by rfvv
  178. English

    did anybody read The Catcher in the Rye?

    asked by Mohammad
  179. Math

    Rudulpho bought a set of wrenches to work on his car. He bought the following sizes 7/8 3/8 3/4 and 1/2. he wants to hang these on his garage wall in order from greatest to least. Which list shows the order in which he should have the wrenches A.7/8 3/8

    asked by Jerald
  180. Math

    slope and y intercept form of these two problems? Y-5=1/3(x-9) 2y+6a-4x=0

    asked by Carly
  181. math

    James is 15 years older than Sue. In 12 years James will twice Sue's age. How old are James and Sue?

    asked by Joe
  182. science

    A sample containing .347 moles of an element has a mass of 39.00 g. What is the element?

    asked by Ah
  183. Math

    Arlene plants to sew a patchwork quilt. She purchases different prints, colors, and lengths of fabric for the quilt. She bought the following lengths 3/4 5/8 3/8 1/2. She wants to stack them in order from least to greatest. Which list shows the order which

    asked by Jerald
  184. math

    Katrina is having new curtains made for a window in her room. she needs 1.56m of fabric. fabric is sold lengths of whole metres and tenths of metres. how much fabric should she buy? why?

    asked by susan
  185. early childhood education

    at what age does exercise begin to result in strength in boys and girls?

    asked by Anonymous
  186. Physics

    A swimmer can swim in still water at a speed of 9.31 m/s. He intends to swim directly across a river that has a downstream current of 4.35 m/s. a) How many degrees from straight across the river should he head? Let upstream be a positive angle. Answer in

    asked by Diego
  187. chemistry

    an oxygen storage tank contains 12l at 25 degrees C and 3 atm.After a 4 L canister of oxygen at 25 degrees C and 3atm is emptied into the ,what do you expect the temperature of the tank to be

    asked by linda
  188. Math

    Hudson is already 40 miles away from home on his drive back to college. He is driving 65 mi/hr. Write an equation that models the total distance d travelled after hours h. What is the graph of the equation. When Phil started his new job, he owed the

    asked by Maia
  189. Math

    Barone’s Italian Restaurant advertises that its customers are much happier than the customers of its main competitors. The claim is based on the results of a customer satisfaction survey Which statement best describes why the graph is misleading?

    asked by Lily
  190. physics

    You drop a ball from a height of 1.9m , and it bounces back to a height of 1.3m . a)What fraction of its initial energy is lost during the bounce? b)What is the ball's speed just before the bounce?

    asked by Andrew
  191. odu

    A toboggan approaches a snowy hill moving at 12.9 . The coefficients of static and kinetic friction between the snow and the toboggan are 0.390 and 0.290, respectively, and the hill slopes upward at 44.0 above the horizontal.

    asked by ty
  192. Math

    Gretchen bought a sweater for $23.89. In addition, she had to pay $1.43 in sales tax. She gave the sales clerk $30. How much change did Gretchen receive from her total purchase?

    asked by Rachel
  193. Algebra

    How would you set up problem: your average rate traveling uphill was 2.2 kilometers per hour and average rate downhill was 3.3 kilometers per hour. If he spent a total of 12 hours hiking, how long was the trail?

    asked by Ellen P
  194. math

    Sandy writes (4*30) + (4*2) and says the quotient for 128/4 is 8. is she correct?

    asked by Shumaine
  195. Math Bar graphs

    Which would be the best way to display the data—a bar graph, a histogram, or a line graph? I think a bar graph because it is more accurate. please help and tell me why you chose the one you chose.

    asked by Moby
  196. AED/204

    Assume that the cultural make up of your classroom includes at least five different ethnic and religious groups. o Address how and why you would create an atmosphere of tolerance, acceptance, and caring in your classroom environment. o Create a plan that

    asked by LaTonia
  197. science

    Why does the sun and moon appear to be the same size when viewed from earth.My answer is because the sun is bigger than the moon. Am I correct

    asked by Americal
  198. .

    What are 2 causes and 2 effects of the development of ancient civilizations in the Middle East.

    asked by .
  199. science

    X needs to find the density of a cube. Each side of the cube measures 3 cm and the mass of the cube is 12 g. What is the approximate density of the cube.

    asked by jim
  200. pre-cal

    Let f(x) be polynomial function. Explain in your own words how to use the Rational Zero Theorem to find the real zeros of f (x).

    asked by ladybug
  201. science

    Two mineral samples have the same mass. Which of the following statements is Ture? A. They don't have same density. B. They have the same volume. C. They are the same material.

    asked by jim
  202. physics

    Suppose that a senior driving a Pontiac zooms out of a darkened tunnel at 39.4 m/s. She is momentarily blinded by the sunshine. When she recovers, she sees that she is fast overtaking a camper ahead in her lane moving at the slower speed of 12.9 m/s. She

    asked by Anonymous
  203. physics

    The bunny is initially hopping east at 7 m/s when it first sees the fox. Over the next half second the bunny changes its velocity to west at 12 m/s and escapes. What was the bunny's average acceleration (magnitude and direction) during this half-second

    asked by Nellie
  204. pre-cal

    Find the real zeros of f (x)= 2x^3 + 2x^3 – 8x + 3

    asked by ladybug
  205. Physics

    Angel Falls in southeastern Venezuela is the highest uninterrupted waterfall in the world, dropping 979 m (3212 ft). Assume that it takes 14 s for the water to fall from the lip of the falls to the river below. If the water lands 60 m from the base of the

    asked by Nellie
  206. Physics

    A 21.3-g bullet is fired from a rifle. It takes 3.77 × 10-3 s for the bullet to travel the length of the barrel, and it exits the barrel with a speed of 779 m/s. Assuming that the acceleration of the bullet is constant, find the average net force exerted

    asked by Kendall
  207. college geometry

    if triangle mnp approximate triangle srt with proportionality factor k, show that if ma and sb are altitudes of the given triangles, then ma = ksb in

    asked by lara
  208. math

    Video rental Store A charges a membership fee of $25 and $2 for each movie rental. Video rental store b charges a membership fee of $10 and $2.50 for each movie. Find the number of movies rentals for which both stores' charges are the same

    asked by Amy
  209. Physics. PLEASE HELP!

    two blocks of masses m1 and m2 (m1>m2) are placed on a frictionless table in contact with each other. A horizontal force of magnitude F is applied to the block of mass m1. if P is the magnitude of the contact force between the blocks, what are the net

    asked by Jack
  210. chemistry

    How does the bond that forms between Na and Cl differ from a bond that forms between N and Cl?

    asked by Boo Boo
  211. physics

    A rocket moves upward, starting from rest with an acceleration of 32.0 m/s2 for 3.27 s. It runs out of fuel at the end of the 3.27 s but does not stop. How high does it rise above the ground?

    asked by Apple
  212. Math

    (x-3) is a factor of x^3+ax^2+bx-3 but when divided by x+2 the remainder is 15 Solve for A and B I know that A is 1 and B is -11, but I don't understand how to solve it

    asked by Kevin
  213. MATH 6-3

    DRAW A RECTANGLE 24 UNITS LONG BY 12 UNITS WIDE

    asked by Anonymous
  214. math

    Name a number with decimal hundredths that rounds up to the nearest whole number but down to the nearest tenth

    asked by susan
  215. physics

    A daring stunt woman sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. The constant speed of the horse is 12.5 m/s, and the woman is initially 1.31 m above the level of the saddle. How long is she in the air? The

    asked by Asi
  216. History

    What country are these cities in? Bellman, Port-au- Prince , Tegucigalpa and Managua?

    asked by Emma
  217. Chemistry

    How many moles of H2 can be produced? (2.14 mol)

    asked by Help
  218. chemistry

    What is the [SO42-] in 0.45 M of H2SO4?

    asked by kristine
  219. math

    name two numbers with decimal hundredth that round to the same whole number but different tenths.

    asked by marco
  220. Hvac

    I have a series circuit with 115 Volta with r16ohmd r2 22ohms r3 44 ohms what is the wattage on r3

    asked by Anonymous
  221. chemistry .....chemistry

    what element include in the fireworks power ? why

    asked by Maria
  222. Chemistry

    how do you balance equations to get the formula?

    asked by Help
  223. Algebra 1

    Ruffles cost $3.49 per bag. Chips-Ahoy cost $3.99 per bag. Bobby spent 42.39. If he bought 5 more bags of Chip-Ahoy than Ruffles, how many bags of each snack did he buy?

    asked by Tyler
  224. early child care

    when attempting to modify a child's behavior using negative reinforcement, the desire result is that the child will: A) Withdraw from certain social activities B) Not argue with adults C) Repeat behavior for which they get the desired results D) Avoid

    asked by seema