Questions Asked on
October 14, 2011

  1. chemistry

    A solution contain 43mEq/L of Cl- and 11 mEq/L of HPO4*2-. If the only cation in the solution is Na+ what is the Na+ concentration if mEq/L? Can you help me with each step to solve this problem?

    asked by Connie
  2. physics

    A cart loaded with bricks has a total mass of 18 kg and is pulled at constant speed by a rope. The rope is inclined at 30.4  above the horizontal and the cart moves 21.5 m on a horizontal floor. The coefficient of kinetic friction between ground and cart

    asked by phys1!
  3. Chemistry

    A snorkeler takes a syringe filled with 16 mL of air from the surface, where the pressure is 1.0 ATM, to an unknown depth. The volume of the air in the syringe at this depth is 7.5 mL. What Is the pressure at this depth? If the pressure increases by an

    asked by Monique
  4. chemistry

    Acetylene gas, c2h2, burns in oxygen to produce carbon dioxide and water. If 61.4 g of co2 are produced when 22.7g c2h2 react with sufficient oxygen, what is the percent yield for the reaction?

    asked by Amanda
  5. math

    the 9th term of an AP is 52 while the 12th term is 70.find the sum of its 20th term

    asked by Anonymous
  6. math

    Mr. Wilson invested money in two accounts. His total investment was $40,000. If one account pays 4% in interest and the other pays 8% in interest, how much does he have in each account if he earned a total of $2,720 in interest in 1 year?

    asked by chanell
  7. pre-calculus

    A developer wants to build homes on a rectangular plot of land 4 kilometers long and 3 kilometers wide. In this part of the city, regulations require a greenbelt of uniform width along two adjacent sides. The greenbelt must be 10 times the area of the

    asked by jordan
  8. chemistry

    what is ph during titration of 10.00ml of 0.1000m triethylamine, ch3ch2)3n (kb=2.3x10^-, with 0.1000m HCL solution after addition of titrant (HCL) 1, 0ml, 5ml,10ml, 20ml,30ml

    asked by ette
  9. math

    mistyped before. A sphere has a volume of 500/3 pi cubic centimeters. What is the total surface area in square centimeters, of the sphere? The correct answer is 100pi, but I have no idea why. I need to see it worked out from start to finish :(

    asked by robby
  10. physics

    A particle leaves the origin with an initial velocity = (2.35 m/s) and moves with constant acceleration = (-1.90 m/s2) + (2.60 m/s2)>. (a) How far does the particle move in the x direction before turning around? m (b) What is the particle's velocity at

    asked by Kaylah
  11. physics

    A 23- bullet traveling 230 penetrates a 3.6 block of wood and emerges cleanly at 170 . If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?

    asked by pat
  12. Business Managment

    Problem 11.3 -- Kelly is a 35 year old single parent with a one-year-old son. She earns $45,000 a year as a marketing analyst and has employer paid group life insurance worth twice her annual salary. She also participates in her employer’s 401(k)

    asked by Vanessa
  13. physics

    Your engineering firm is asked to specify the maximum load for the elevators in a new building. Each elevator has mass 500 kg when empty and maximum acceleration 2.25 m/s^2. The elevator cables can withstand a maximum tension of 19.6 kN before breaking.

    asked by mera
  14. Calculus

    Given f(x) = (x^4 + 17) / (6x^2 + x - 1) Identify any points of discontinuity, and determine (giving reasons) if they are removable, infinite (essential), or jump discontinuities. From the work that I have done so far, I know that there are two

    asked by Mishaka
  15. physics

    The space shuttle has a total mass of 2.0 x 10^6 kg. At liftoff, the engines exert a total thrust of 35 x 10^6 N. Calculate the shuttle's weight. Calculate the shuttle's acceleration at liftoff. If the acceleration averages 13 m/s/s over the first 10

    asked by Anonymous
  16. physics

    A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.600 m. What impulse was given to the ball by the floor?

    asked by Anonymous
  17. cost accounting

    The East Company manufactures several different products. Unit costs associated with Product ORD203 are as follows: Direct materials $50 Direct manufacturing labor 8 Variable manufacturing overhead 10 Fixed manufacturing overhead 23 Sales commissions (2%

    asked by carol
  18. math

    a sphere has a volume of 500/3 pi cubic centimeters. What is the total surface area, in sqaure cntimeters, of the square? A. 25 pi B. 40 pi C. 100 pi D. 400 pi Please show your work. im very confused :(

    asked by robby
  19. economics

    Is limitless growth really possible? What forces do you think will be most important in slowing or halting economic growth?

    asked by michele
  20. physics

    Two objects attract each other gravitationally with a force of 2.1×10−10 when they are 0.25 apart. Their total mass is 4.50 .

    asked by XG
  21. patterns

    the first five terms of a sequence are shown below: 8,6,4,2,0 ... What is the 100th term in the sequence? A. -192 B. -190 C. -108 D. -90 I know how to figure this out but it would take a few minutes. There UST be some sort of formula?

    asked by robby
  22. chemistry

    A solution of .12 L of 0.160 M KOH is mixed with a solution of .3 L of 0.230 M NiSO4. the equation for this reaction is: 2KOH (aq)+NiSO4 (aq) ----->K2SO4 (aq)+Ni(OH)2 (s) .89 grams of Ni(OH)2 precipitate form I need to know the concentration remaining in

    asked by Colin
  23. Algebra

    This is soooo confusing! An airplane flies from New Orleans, Louisiana, to Atlanta, Georgia, at an average rate of 320 miles per hour. The airplane then returns at an average rate of 280 miles per hour. The total travel time is 3 hours. A. Define a

    asked by Tim
  24. physics

    The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 100 cm apart on the same axle. From the angular displacement 22.9 ◦ of the two bullet holes in the disks and the rotational

    asked by liz
  25. Child development

    Using these steps, consider a cognitive “problem” a young child might encounter that he/she needs help with (such as putting together a puzzle, sequencing – putting items in order, sorting by color or size, adding, subtracting, tying shoes, learning

    asked by amy
  26. physics

    To move a large crate across a rough floor, you push on it with a force F at an angle of 21°, below the horizontal, as shown in the figure. Find the acceleration of the crate, given that the mass of the crate is m = 38 kg, the applied force is 329 N and

    asked by anonymous
  27. Chem/Physics

    A baseball weighs 5.19 . What is the kinetic energy in joules of this baseball when it is thrown by a major-league pitcher at 98.0 ?

    asked by Anonymous
  28. Biology( HELP PLEASE)

    give the two possible alleles in the eggs produced by a women whose genotype is JjKkLl

    asked by Erin
  29. Chemistry 101

    A solution of .12 L of 0.160 M KOH is mixed with a solution of .3 L of 0.230 M NiSO4. the equation for this reaction is: 2KOH (aq)+NiSO4 (aq) ----->K2SO4 (aq)+Ni(OH)2 (s) .89 grams of Ni(OH)2 precipitate form I need to know the concentration remaining in

    asked by Colin
  30. Calculus (Discontinuities)

    Suppose, f(x) = { (x - 1)^2 / x + 1 if x < 2 (x^2 - 2x - 8)/(x - 4) if 2

    asked by Mishaka
  31. physics

    Two objects with masses of 3.00 kg and 7.00 kg are connected by a light string that passes over a frictionless pulley (a) Determine the tension in the string. .N (b) Determine the magnitude of the acceleration of each mass. .m/s2 (c) Determine the distance

    asked by savannah
  32. Please help me with Finance !

    charlie can not remember how much he financed to buy his car.. he does remember that his monthly payment is $200 and his add on interest rate was 12% and he made a total of 18 payments. find the amount of his loan to the nearest penny. I keep getting over

    asked by HM
  33. Chemistry

    Using enthalpies of formation, calculate the quantity of heat produced when 14.0 g of propane is completely combusted in air under standard conditions.

    asked by John
  34. physics

    A woman at an airport is towing her 21.0 kg suitcase at constant speed by pulling on the strap at an angle of è above the horizontal (Fig. P4.40). She pulls on the strap with a 34.0 N force, and the friction force on the suitcase is 11.0 N. (a) What angle

    asked by savannah
  35. physics

    A 33.0 kg box initially at rest is pushed 5.95 m along a rough, horizontal floor with a constant applied horizontal force of 145 N. If the coefficient of friction between box and floor is 0.300. find: the work done by the applied force the increase in

    asked by gene
  36. Chemistry

    A chemical reaction occurring in a cylinder equipped with a movable piston produces 0.58 mol of a gaseous product. If the cylinder contained 0.11 mol of gas before the reaction and had an initial volume of 2.1 L, what was it's volume after the reaction. Am

    asked by Monique
  37. math

    What is the mass of a liter of gasoline if its density is 0.66 g/mL?

    asked by Linda
  38. math

    The demand for the video game is modeled by the logistic curve, where q(t) is the total number of units sold t months after its introduction. q(t)= 10000/(1+0.5 e**(-0.4t)) (a) Use technology to estimate q'(4) to the nearest integer. mark units per month

    asked by Beth
  39. math

    bill furrier marks up mink coats 3000.00, which represents a 50% markup on cost. what is the cost of the coats?

    asked by Judy
  40. algebra 2

    write a polynomial function of least degree that has real coefficeints the given zeros and a leading coefficient of 1. the problem is 5,2i,-2i

    asked by jay
  41. physics

    Let A and B be the two vectors of magnitude 10 unit . If they are inclined to X-axis at angle 30 degree and 60 degree respectively. Find the resultant.

    asked by Bablu
  42. physics

    Two balls have the same mass of 3.085 kg and identical charges of 21.0 ìC. They hang from the ceiling on strings of identical length as shown in the figure. If the angle with respect to the vertical of the strings is 22.0°, what is the length of the

    asked by emine
  43. Calculus

    Suppose f(x) = [sin(x^2 - 4)]^ -1. Identify any points of discontinuity, and determine (giving reasons) if they are removable, infinite (essential), or jump discontinuities. Okay, I presume that the [] brackets denote the greatest integer function (int ()

    asked by Mishaka
  44. science

    Rebecca is studying the range of growth of tomato plants. She measured the following data in the fourth week of growing her plants. tomato plant measured growth 1 1.5 cm 2 6.5 cm 3 7 cm 4 6.5 cm 5 3.25 cm 6 7.75 cm 7 5.5 cm 8 6 cm Given this data, what

    asked by colleen
  45. Chemistry

    How many moles of CaCl2 are in 250mL of a 3.0M of CaCl2? Ca=40.08 -- Cl=35.45 X 2 ?? Thanks

    asked by Emily
  46. calculus--please helpp

    if the line 3x-4y=0 is tangent in the first quadrant to the curve y=x^3+k, find k. all i know is that its related to finding a derivative and i m basically completely lost....can please someone provide me some help?????

    asked by krishna
  47. Physics

    A 1.21 kg block slides down a 25.0 m long 25.0° incline at constant velocity. How much work is done by friction?

    asked by kellie
  48. calculus

    Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint cm thick to a hemispherical dome with a diameter of meters.

    asked by john
  49. physics

    A 3.56-kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.180 s, what is the

    asked by Anonymous
  50. physics

    Find the resultant of two vectors 7N and 8N inclined at an angle of 65 degree to each other

    asked by Sunday
  51. chemistry

    What mass of oxygen is needed for the complete combustion of 2.60×10−3 of methane? Express your answer with the appropriate units.

    asked by CHRIS
  52. Comp 156

    How would overly biased writing negatively affect a persuasive essay?

    asked by Wonk
  53. chemistry

    The solubility product constant (Ksp) for the dissolution of Cu(OH)2 as represented by the chemical equation is 2.6 x 10-19. Cu(OH)2 (s) Cu2+ (aq) + 2 OH- (aq) Calculate the moles of Cu(OH)2 that dissolves in 1900 mL of water. i know how to do it when its

    asked by BOB
  54. statistics math &146

    Outstanding balance on each account. is it a mean median or mode

    asked by sherlyn
  55. PROBLEM SOLVING IN MATHEMATICS

    what do you need to know to solve this? you have kite ABCD. angle B is at the top of the kite and measures 80 degrees. angles A and C are on the sides and angle D is at the bottom of the kite. what is the largest siza that angle A or C could be?

    asked by alya
  56. chemistry

    What is the concentration, mass/vol percent (m/v) of a solution prepared from 50.gNaCl and 2.5L? Do I divide 50.g NaCl/2.5L?? = 20% Thank you!

    asked by Connie
  57. algebra

    a sphere has a volume of 500/3pi cubic centimeters. What is the total surface area, in square centimeters, of the sphere?

    asked by robby
  58. Chemistry

    Givien a 2.0kg solution of phosphoric acid and water 53% phosphoric acid by mass calculate the number of moles of phosphoric acid

    asked by Anonymous
  59. math

    suppose walmart stok is selling at 59 dollars a share and mattel stock is selling at 28 a share. amy waller has a maximum of 6000 dollars to invest. she wishes to purchase four times as many shares of walmart as of mattel. only whole shares of stock can be

    asked by dina
  60. physics

    A 3.56-kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.180 s, what is the

    asked by Anonymous
  61. Biology

    How is it a solution of 300mOsM NaCl is both isotonic and isosmotic to a red blood cell with an osmolarity of 300mOsM? Yet a solution of 300mOsM urea is only isosmotic to that red blood cell?

    asked by p
  62. physics

    A uniform chain 10m long and weighing 6 kg permetre hangs vertically.calculate the work required to wind it up

    asked by vishal
  63. Calculus

    equation of tangent line of the function sqrt (3x+5) where x=10

    asked by Jack
  64. Chemistry

    A)What mass of silver chloride can be produced from 1.33 of a 0.207 solution of silver nitrate? I got this one, its 39.4 g B)The reaction described in Part A required 3.28 of potassium chloride. What is the concentration of this potassium chloride

    asked by Kristi
  65. Chem

    1.00 mL of a 0.0500 M sucrose solution is transferred to a 100 mL volumetric flask, and the flask brought up to volume. 5.00 mL are taken from the 100 mL volumetric flask and transferred to a 0.500 L flask, and it is brought up to volume. What is the

    asked by Anonymous
  66. Science

    A spherical rock rests at the top of a steep hill. the rock has A)Potential Energy B) Chemical energy C)Kinetic energy or D) no energy i think it's A or B but I'm not sure. thanks

    asked by Jon
  67. Calculus

    Suppose f(x) = [sin(x^2 - 4)]^ -1. Identify any points of discontinuity, and determine (giving reasons) if they are removable, infinite (essential), or jump discontinuities. Okay, I presume that the [] brackets denote the greatest integer function (int ()

    asked by Mishaka
  68. Monthly payment-Math

    Okay here is my question two guys buy a new room for $10,000 down payment: $1000 and they want to pay whatever they owe in 30 monthly payments.. find the amount of the monthly payment at 10% add on interest. I keep getting 330.. but the answer is 375. I

    asked by HM
  69. Algebra

    The sum of two consecutive odd integers is 56. A. Define a variable for the smaller integer. B. What must you add to an odd integer to get the next greater odd integer? C. Write an expression for the second integer. D. Write and solve an equation to find

    asked by Bri
  70. calculus

    Find an equation of the tangent line to the curve at y = cosx - sinx (pi, -1) I found y'= -sinx - cosx and used the equation of the tangent y = mx +b I input the values and get -1 - [(-sinx - cosx) * pi] = b the answer says it is y = x - 1 - pi I have no

    asked by Daniel
  71. Physics 1 - Mechanics

    You throw a rock with an initial horizontal velocity and it hits the ground at x meters away from your feet. What if: (a) You throw the same stone with the same initial conditions but instead you do this on a another planet with a mass 4 times the mass of

    asked by Alex
  72. Unscramble

    Unscramble the following words eye lies the beauty of in the beholder

    asked by Saleem
  73. Chemistry

    Givien a 2.0kg solution of phosphoric acid and water 53% phosphoric acid by mass calculate the number of moles of phosphoric acid

    asked by Anonymous
  74. essay

    Hello, I am writing a film analysis on the film Heathers. I am doing a Character analysis on Heather Chandler, and I wanted to say she is at the top of her hierocracy but I wasn't sure if that made sense if anyone gets what im trying to say plz help

    asked by Rainy
  75. physics

    object A exerts a gravitational force of magnitude 8.2 x 10^-10 N on object B. determine the magnitude of the gravitational force if, simultaneously, the separation distance is tripled, mA increased by 4 times and m8 is halved. explain your reasons and

    asked by luna
  76. physics

    A hockey puck is hit on a frozen lake and starts moving with a speed of 10.6 m/s. Five seconds later, its speed is 6.10 m/s. (a) What is its average acceleration? m/s2 (b) What is the average value of the coefficient of kinetic friction between puck and

    asked by savannah
  77. child development

    • Which one of Piaget’s stages of intellectual development would the behavior described fall into? • How would knowledge about that stage help you in resolving the situation? Scenario #1 A child snaps two duplo blocks together and walks around making

    asked by amy
  78. Physics

    A car traveling at 18 m/s accelerates at 5.5 m/s2 for 9 s. How far does the car travel during the time it is accelerating for 9 seconds?

    asked by Idk
  79. College Physics

    A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

    asked by Allen
  80. Differenctial equations

    Use the change of variable x = exp(s) to recast the differential equation xy′′+y′+(L/x)y=0 Please HELP ME

    asked by lili
  81. Physics

    A shell of a gun has a initial speed of 1700 m/s at initial inclination of 55◦ above the horiztontal. Ignore air resistance and other effects. a) what is the maximum height? B) what is the total time of the shell's flight? c) how far away did the shell

    asked by Lala
  82. Algebra

    A jet leaves the Charlotte, North Carolina, airport traveling at an average rate of 564 km/h. Another jet leaves the airport one half hour later traveling at 744km/h in the same direction. Use an equation to find how long the second jet will take to

    asked by Joy
  83. HELP-PROBLEM SOLVING IN MATHEMATICS

    probably the most famous approach to problem solving is Polya's four-step process. Describe the four-step process.

    asked by alya
  84. Physics

    A seed shoots out from the pod with the speed of 2.4 m/s but with a direction of motion 30° below the horizontal. The seed pod is initially 1.2 m above the ground. (a) How long does it take for the seed to land? (Neglect air resistance.) (b) What

    asked by Kaylah
  85. physics

    A satellite orbits Earth once per day. From the reference frame of the Moon, which orbits Earth once about every 27 days, what is its motion?

    asked by karen
  86. Stats.....plz help me.....

    Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work. Errors Frequency 51-53 9 54-56 19 57-59 16 60-62 24 63-65 25

    asked by Jennifer
  87. Chemistry

    Calculate your Kinetic Energy in Joules if you weigh50 kg and you are walking 2 meters/second. This is what I did: KE is Ek=1/2mv^2 So it would be Ek=1/2(50kg) x 2m/s Then I convert kg to pounds. There are .454kg in 1 lb so 50(.454)=22.7lbs

    asked by Anonymous
  88. stat

    The average commute time via train from the Chicago O'Hare Airport to downtown is 60 minutes with a standard deviation of 15 minutes. Assume that the commute times are normally distributed. What proportion of commutes would be: longer than 80 minutes? less

    asked by des
  89. Calculus

    h(x)=In abs (*x+1)/(3x-6)(x-4)

    asked by Anonymous
  90. Calculus

    s(x)=log3(x^2+6x) find derivative?

    asked by Beth
  91. calculus

    Find the equation of the line tangent to the graph of the given function at the point with the indicated x-coordinate. f(x)=(4 sqrt(x)+7)/(sqrt(x)+2); text( ) x=4

    asked by Beth
  92. math

    What is the area of 11 m 21 m 8 m 5 m

    asked by loyd
  93. College Physics

    A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

    asked by Allen
  94. College Physics

    A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

    asked by Allen
  95. chem

    How many grams of H20 are produced when 140 grams of NH3 reacts by the following? Answer in 3 SF 4NH3+6NO--->5N2+6H20 Please help! Thanks

    asked by Emily
  96. business studies

    we have to prepare model, ppt and file on cotton textile industry. so help us out.

    asked by harpreet
  97. math test

    if a 15 foot pece of electric tape has 0.56 feet cut from it then what is the new length of tape?

    asked by divija
  98. Physics

    A hot-air balloon is rising upward with a constant speed of 2.83 m/s. When the balloon is 8.64 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?

    asked by Nsilo
  99. pre-algebra

    Please help me solve these problems. 12^2+2 [(13+3)] / 2^2] -4(3)+5[7-6(-4)^2] -5(3)+3[9-6(-3)^2]

    asked by student
  100. Mathematics

    Alicea baked a plum bar and cut it into ninths. What fair trades can she make with Rosita, whose raspberry bar is divided into ninths?

    asked by Alex
  101. Physics

    A)What mass of silver chloride can be produced from 1.33 of a 0.207 solution of silver nitrate? I got this one, its 39.4 g B)The reaction described in Part A required 3.28 of potassium chloride. What is the concentration of this potassium chloride

    asked by Kristi
  102. Pre Calculus

    Applications of trigonometric functions Solve the missing parts of the triangle satisfying a=125 b=150 alpha=55 degrees There are two solutions

    asked by Josh
  103. accounting

    Jane Doe of Creative Marketing was recording transactions into the accounting records to prepare financial statements for the bank in a loan application. Her expenses were higher than anticipated and she was concerned about the effects on net income. As

    asked by Anonymous
  104. Chemistry

    reaction between sulfur and oxygen is S+O2 = SO2. how much sulfur is in the original materials, would result in 1000g of so2

    asked by Gracy
  105. Chemistry

    Calculate your Kinetic Energy in Joules if you weigh50 kg and you are walking 2 meters/second. This is what I did: Ep=50kg x 9.8m/s^2 x 2m/s = 980 Joules. What do I do next?

    asked by Anonymous
  106. Geography

    I need to write about the river tees AND about the source to mouth. Please please help me :( I have to redo do it by monday and I can only use the computer for 30 more minutes! Please F'ing help ME.

    asked by John
  107. Algebra

    In Algebra terms, what does "restrict the variables" mean?

    asked by Emma
  108. Physics 1 - Mechanics

    You are making a trip in a space shuttle, and your friend Jimmy is in another space shuttle. He shares the same circular orbit with you, which is 420 km above the Earth, but he is 21 km ahead of you. (a) How long will it take you to catch up with your

    asked by Alex
  109. statistics

    You ask a neighbor to water a sickly plant while you are on vacation. Without water the plant will die with probability 0.7. With water it will die with probability 0.6. You are 84 % certain the neighbor will remember to water the plant. You come back from

    asked by Anonymous
  110. Religion of the World

    I need information pertaining to the similarities in Judaism, Isslam and Christianity pertaining to the ten commandments.

    asked by Tisha
  111. algebra

    solve the equation for y 4y+5x= -7 I came up with this is, is it right? y=-5x/4+4

    asked by cupnnas2002
  112. math sequence

    the first 5 terms of a linear sequence are given below: 8,6,4,2,0... What is the 100th term in the sequence? A. -192 B. -190 C. -108 D. -90 I could figure this out in like 5 minutes, but I know there's a pattern I can't remember to figure it out quicker.

    asked by robby
  113. business

    Eastern Airlines knows that 20% of its customer fly first class,20% fly business class, and the rest fly coach. Of those customers who fly first class,70% are from the East Coast while 30% are from elsewhere. In addition, of those customers who fly

    asked by jose alejandro
  114. Scholarship

    Please revise my essay by giving tip or suggestions. A scholarship like “The FATE” will help me achieve my educational & career goals. “The FATE” not only will benefit financially but it will also boost my self-confidence, give me greater power of

    asked by Griselda
  115. physics

    Ten boxes, each 16.0 cm high and weighing 250 N, initially are all side by side on the floor. The boxes are lifted and placed in a vertical stack 1.60 m high in a time interval of 7.00 s. Compute the power necessary to stack the boxes.

    asked by kellie
  116. College Physics

    A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

    asked by Allen
  117. chemistry

    what is the typical relationship between the rate of reaction and the value of the equilibrium constant? A) it is a direct porportionality B) it is an exponential proportionality C) it is an inverse proportionality D) there is no relationship between these

    asked by jen
  118. opertating a car

    The sticker price on a new car includes: A.The final selling price of the vehicle B.an extended warranty C.everything you need to know about the vehicle D.the retail price of everything that comes with that particular vehicles. i got D

    asked by Ciara
  119. chemistry

    hey drbob222, where did u get 500ml from? question is: 1.00 mL of a 0.0500 M sucrose solution is transferred to a 100 mL volumetric flask, and the flask brought up to volume. 5.00 mL are taken from the 100 mL volumetric flask and transferred to a 0.500 L

    asked by selina
  120. calculus

    t(x)=((x+4)^0.1-5x)^-5.1

    asked by Beth
  121. Sociology

    A major reason why children of upper-middle class families do well in school is the pressure that is placed on them by their families. a.True b.False a I guess..

    asked by Casey
  122. owning

    _________of the vehicle is the likely consequence of failture to make the required loan payments. A.Theft B.Repossession C.Destruction D.Loss of warranty i got D

    asked by Ciara
  123. Sociology

    When children are taught to sit straight and not slouch, to address men older than themselves as "sir" and to look the person they are addressing in the eye, they are learning aspects of: a.deference b.demeanor its deference, maybe.

    asked by Casey
  124. English

    1. When did he live in this town? 2. When did he start to live in this town? (Are both grammatical?

    asked by rfvv
  125. stats

    For each of the following situations, determine: a) the null and research hypotheses; b) the hypothesis test used (normal curve, single sample t-test, dependent samples t-test, independent samples t-test, ANOVA). For situations 1, 3, 4, and 5, also state

    asked by Anonymous
  126. math

    An oceanographic research vessel comes across a volcano under the sea. The top of the volcano is 450 ft below the surface and the sea floor is -6,700 ft. What is the height of the volcano?

    asked by cindy
  127. scientific notaton

    Express the following quantities in the scientific notation: According to NASA, Mars is 225,000,000 km from the Sun at its closest point.

    asked by cindy
  128. Science Math

    7. Calculate the difference in the lung volumes of a male athlete who is 62 inches tall and a female athlete who is 56 inches tall. Show your work. (2 points)

    asked by George
  129. HUM

    What is one important distinction you could not overlook making when critically evaluating the information provided in these materials about the Boston Tea Party? Clarify the importance of that distinction

    asked by Bella
  130. HUM/111

    identify two possible strategies that Thomas Hutchinson or Samuel Adams, or both, likely used to develop and improve his thinking prior to taking a stand and acting according to his beliefs.

    asked by Jane
  131. science

    How many years after voyage 2's launch was it before scientists could view its photographs of Uranus?

    asked by felix
  132. GK

    which is correct word beuaty lies in the eyes of the beholder or the beauty of eyes lies in the beholder

    asked by Saleem
  133. College Physics

    A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

    asked by Allen
  134. math

    Express the following quantities in the scientific notation: According to NASA, Mars is 225,000,000 km from the Sun at its closest point.

    asked by cindy
  135. anaheim

    a glacier moves with a speed of 54m/s. how many years wold it take for the glacier to move 0.65 km? assume there are 365 days in a year

    asked by george
  136. Truth in Lending

    I have a quick question. I keep getting confused in this topic. Purchase down payment= $3000 add on number of payments = 18 price= $500 interest rate : 7% FIND THE APR TO THE NEAREST HALF. In my solution I am first calculating the total payment and then I

    asked by HM
  137. Physics

    A rifle is pointed horizantally 100 meters away from a target. The bullet hits 0.75 millimeters below the target. How long did it take to get there? What was the velocity of the bullet when it was first shot?

    asked by Elizabeth
  138. Science

    What is the role can play integrated science in primary schools?

    asked by Science
  139. Maths

    Please show me the way of using formula log?

    asked by Maths
  140. physics

    if i ran a 4.6 forty yard dash and i ran down hill at a max speed of 18 miles per hour and punched you right in the face how many foot pounds of pressure would my hit have

    asked by Charles
  141. Chemistry

    Hi, I have a question on HPLC (high performance liquid chromatography). The procedure says to use a 4.6 x 150mm x 3um column. The relative retention time of Impurity B with reference to the main peak is about 0.5min. If I use a 4.6 x 100mm x 2.7um column,

    asked by anne
  142. Science

    anyone know the cost of neon as of now

    asked by Bethani
  143. Sociology

    Q1. All societies produce some form of inequality. a)True b)False Q2.Income is the measure of social class inequality that is most often used. a)True b)False for 1 i think a and for 2 a

    asked by Casey
  144. algebra

    the surface area of a cylinder with a radius of 21 cm and a height of 42 cm. Use 22/7 for pi .

    asked by Anonymous
  145. Pre-Algebra

    Evaluate the expression. 1. (18 + 9) + 11 2. 8(-2)(5) 3. 1.2 + 4.7 + 1.5 Simplify the expression. 4. t + 24 + 17 5.-8 + c + (-10) 6.4(6x)

    asked by Amy
  146. art

    got a project about you need to find 12 pictures to suit the vales like line texture and etc

    asked by bob
  147. chemistry

    a bottle of 12.o M HCL has only 49.8 ml left in it. What is the molarity of the hcl if the solution is diluted to 350ml.

    asked by wendy
  148. Psychology

    Contribution of psycholoy to learning in primary schools?

    asked by Psychology
  149. Chemistry-please help

    Posted by anne on Friday, October 14, 2011 at 6:30pm. Hi, I have a question on HPLC (high performance liquid chromatography). The procedure says to use a 4.6 x 150mm x 3um column. The relative retention time of Impurity B with reference to the main peak is

    asked by anne
  150. com-156

    does the opinion of an expert in the field carry more weight than the opinion of someone that is not?

    asked by bvk3722
  151. physics

    A car starts from rest and accelerates at 6 m/s/s. How far does it travel in 3 s? Answer in meters. Round answer to the nearest ones.

    asked by Anonymous
  152. math

    a sphere has a volume of 500/3pi cubvic centimeters. What is the total surface area, in square centimeters, of the square? The answer is 100pi, but i don't know why. HELP!!!!!!!!!

    asked by robby
  153. math

    If H is a subgroup of G, and K is a normal subgroup of G, prove that: HK = KH

    asked by Jackie
  154. Chemistry-Bob please help

    Posted by anne on Friday, October 14, 2011 at 6:30pm. Hi, I have a question on HPLC (high performance liquid chromatography). The procedure says to use a 4.6 x 150mm x 3um column. The relative retention time of Impurity B with reference to the main peak is

    asked by anne
  155. physics

    4. Brick A is hurled vertically upward from a bridge at an initial speed of 4.90 m/s. One second later, Brick B is thrown horizontally from the same bridge with an initial speed of 9.80 m/s. Which hits the water first?

    asked by Elijah
  156. physics

    4. Brick A is hurled vertically upward from a bridge at an initial speed of 4.90 m/s. One second later, Brick B is thrown horizontally from the same bridge with an initial speed of 9.80 m/s. Which hits the water first?

    asked by Elijah
  157. MBA Practice problems

    you are presently involved with a project to establish the cost of the gold presently used in the production of 1000 computer chips per month. each chip uses two grams of 20 ct gold with the remaining portion of a metal whose cost is insignificant. what is

    asked by tina
  158. physics

    can you explain briefly about fluid statics?

    asked by jagadheeswar
  159. MATH HELP PLEASE!

    Let c be a positive integer with 1

    asked by Mary
  160. College Physics

    Find the minimum work required to carry a truckload of furniture weighing 1.99 104 N to a third-story apartment, 24.0 m above the truck.

    asked by Allen
  161. Sat prep English

    Choose the word which best completes the sentence Neither the cat nor the dog (play, plays) together. And Neither the cat nor the dogs (play, plays) together. And Neither the cats nor the dogs (play, plays) together.

    asked by Marina
  162. microeconomics

    Do you think that a firm always pays the lowest wages they can? Why/why not? Relate your answer to productivity. Which workers do you think would be the first to be laid-off in the event of a slowdown. Why?

    asked by Timica
  163. World History

    describe three social or economic reforms between 1917 and the 1930s that were a result of the Mexican Revolution.

    asked by DeAndre
  164. physics

    A 14 g bullet is fired into a 120 g wooden block initially at rest on a horizontal surface. The acceleration of gravity is 9.8 m/s^2 . After impact, the block slides 6.97 m before coming to rest.If the coefficient of friction between block and surface is

    asked by adriana
  165. English

    Could you check these few sentences, please? Thank you. 1) What are people intolerant about (is "of" also possible)? 2)They are intolerant about the color of the skin, religion and clothes. 3) They are prejudiced against people of other religions. 4) In

    asked by Henry2
  166. Physical Science

    what forward force must the ground apply to the foot of a 60.0 kg person to result in an acceleration of 1.00m/s^2

    asked by Patricia