Questions Asked on
October 17, 2011

  1. Chemistry

    Assuming equal concentrations , rank these solutions by pH. RbOH(aq), NH3(aq), HF(aq) HBr(aq), Ca(OH)2(aq). I know the most acidic solution has the lowest pH and the most basic solution has the highest pH. But how am i supposed to know the pH if i don't

    asked by Nia
  2. chemistry

    In Chemistry: what is ph during the titration of 20.00ml of 0.1000m triethylamine (ch3ch2)3n (kb=5.2x 10-4) with 0.1000m HCL solution after the additions of titrant : a) 0ml (b) 10.00ml (c) 19.00ml (d)15.00ml (e) 20.00ml (f) 25.00ml

    asked by jain
  3. Calc

    If a rock is thrown upward on the planet Mars with a velocity of 17 m/s, its height (in meters) after t seconds is given by H = 17t − 1.86t^2. (a) Find the velocity of the rock after one second. (b) Find the velocity of the rock when t = a. (c) When will

    asked by Katrina
  4. University Chemistry (first year)

    I'm working on a first year chemistry lab where we synthesized alum from alunimini foil and I'm doing the report and one of the questions is as follows: Based on your findings, what volume of water can be cleared of suspended solids by one beverage can

    asked by clam
  5. chem

    When the valve between the 2.00-L bulb, in which the gas pressure is 2.00 atm, and the 3.00-L bulb, in which the gas pressure is 4.50 atm, is opened, what will be the final pressure in the two bulbs? Assume the temperature remains constan

    asked by ana
  6. CHEMISTRY HELP

    1) The specific heat of solid copper is 0.385 J/g(C). What thermal energy change occurs when the temperature of a 34.10 g sample of copper is cooled from 35.7 degrees Celsius to 13.9 degrees Celsius? Answer: -286.3 J This amount of heat is used to melt

    asked by Jen
  7. Physics

    A boy starts at rest and slides down a frictionless slide as in the figure below. The bottom of the track is a height h above the ground. The boy then leaves the track horizontally, striking the ground a distance d as shown. Using energy methods, determine

    asked by Brandon
  8. university physics

    It is proposed that future space stations create an artificial gravity by rotating. Suppose a space station in constructed as a 1170.0 m diameter cylinder that rotates about its axis. The inside surface is the deck of the space station. What rotation

    asked by ....
  9. Math( help please ! )

    The profit p(x) of a cosmetics company , in thousands of dollars,is given by p(x)=-5x^2+400x-2550, where x is the amount spent on advertising , in thousands of dollars a) determine the max profit the company can make b)Determine the amount spent on

    asked by Melissa
  10. Physics

    You buy a plastic dart gun, and being a clever physics student you decide to do a quick calculation to find its maximum horizontal range. You shoot the gun straight up, and it takes 3.8 s for the dart to land back at the barrel. What is the maximum

    asked by Tina
  11. chemistry

    CH3OH(g) ----> CO(g) + 2H2 (g) (delta H =+90.7k) A) is heat absorbed or released in the course of this reaction? b) calculate the amount of heat transferred when 45.0g of CH3OH(g)is decomposed by this reaction at constant pressure. c) for a given sample of

    asked by Anna
  12. Physics

    A toy chest and its contents have a combined weight of W = 180 N. The coefficient of static friction between toy chest and floor μs is 0.440. The child in Fig. 6-35 attempts to move the chest across the floor by pulling on an attached rope. (a) If θ is

    asked by S.Jacob
  13. Math( help please ! )

    The height of a ball thrown vertically upward from a rooftop is modelled by y=-5t^2+20t+50 , where h(t) is the ball's height above the ground , in meters , at time t seconds after the throw a) Determine the max height of the ball b) how long does it take

    asked by Melissa
  14. algebra world problems

    1) the odometer on your car reads 20,186.7 after going 62.3 miles. write and solve an equation to determoine how many miles were on the odometere before going 62.3 miles. i wrote this; 0-62.3 = 20,186.7 2) michael bought a $25.00 gift for a friend. After

    asked by marko
  15. CHEMISTRY

    In a 1.0x10^-6 M soltution of HNO3(aq), identify the relative molar amounts of these species. H2O , HNO3, H3O+,NO3-, OH-

    asked by Alexis Moran
  16. CHEMISTRY

    Assuming equal concentrations , rank these solutions by pH. RbOH(aq), NH3(aq), HF(aq) HBr(aq), Ca(OH)2(aq).

    asked by Nia
  17. Chemistry

    An unknown compound contains carbon, hydrogen, and oxygen. When burned, a 2.000 gram sample of this compound releases 3.451 g of carbon dioxide and 1.059 grams of water. What is the empirical formula of this compound? Thank you very much.

    asked by Mom
  18. math stats

    A true-false test consists of 50 questions. how many does a student have to get right to convince you that he is not merely guessing Explain

    asked by julia42
  19. science

    How do you calculate how long will it take an object dropped from a window to fall a distance of 78.4 meters?

    asked by eric
  20. physics

    You are pushing a 30-kg wooden crate across the floor. The force of sliding friction on the cate is 90 N. How much force, in newtons, must you exert on the crate to keep it moving with constant velocity?

    asked by Sharon
  21. Algebra

    Which of the following statements from Euclidean geometry is also true of spherical geometry? A) A line has infinite length. B) Two intersecting lines divide the plane into four regions. C) Two perpendicular lines create four right angles. D)The

    asked by Heather
  22. physics

    A hockey puck slides across the ice at a con- stant speed. Which of the following is true? 1. The puck is moving and thus not in equi- librium. 2. The puck can be considered neither at rest nor in equilibrium. 3. It is in equilibrium. 4. None of these 5.

    asked by BOB
  23. physics

    the time a male bungee jumps is freely falling is 1.5 seconds. what is the velocity of the jumper at the end

    asked by benjie pauig
  24. Chemistry

    In a 1.0x10^-6 M soltution of HNO3(aq), identify the relative molar amounts of these species. H2O , HNO3, H3O+,NO3-, OH-

    asked by Alexis Moran
  25. chemistry

    What pb2+ concentration should be maintained in PbNO3 to produce a solubility of 1.7×10−4 PbI2/L when PbI2 is added? I found the ksp of PbI2 to be 7.1*10(-9), divided the ksp by the solubility, and took the square root, resulting in 6.5*10(-3). my

    asked by Anonymous
  26. science

    you and a child are on skates and you give each other a push. if the mass of the child is half your mass, who has the greater acceleration? by what factor? i know it is the child but im not sure about the factor. im pretty sure the answer has something to

    asked by Cowgirl
  27. stats homework help

    A true-false test consists of 50 questions. how many does a student have to get right to convince you that he is not merely guessing Explain

    asked by julia42
  28. trig

    Two pilots take off from the same airport. Mason heads due south. Nancy heads 23º west of south. After 400 land miles, how far is Nancy from Mason’s route? Round your answer to the nearest tenth of a mile. (Enter only the number.)(If someone had helped

    asked by Parker
  29. English Check

    1. (Points: 2) The lawyer had been involved in several (elicit, illicit) activities. b. illicit 2. (Points: 2) When people (emigrate, immigrate), they move into a country. b. immigrate 3. (Points: 2) Several (incidence, incidents) caused the bookkeeper to

    asked by HM
  30. Chemistry

    In this reaction, 4.58 L of O2 were formed at 745mm Hg and 308 K. How many grams of Ag2O decomposed. 2 Ag2O----> 4 Ag + O2 Please help I'm very confused

    asked by Monique
  31. Physics

    In loading a fish delivery truck, a person pushes a block of ice up a 200 incline at constant speed. The push is 150N in magnitude and parallel to the incline. The block has a mass of 35.0 kg. What is the force of kinetic friction on the block of ice?

    asked by Yuki
  32. statistics

    Smith is a weld inspector at a shipyard. He know from keeping track of good and substandard welds that for the afternoon shift 5% of all welds done will be at substandard. Smith checks 7500 shifts completed that shift and finds that 300 of them are

    asked by ashley
  33. science

    The specific heat of silver is 0.057 calories/gram°C. If 10.0 grams of silver were heated and the temperature of the sample changed by 20.0°C, how many calories of heat energy were absorbed by the sample? (A)3,508 calories (B)0.029 calories (C)11.4

    asked by emily
  34. U.S History

    who won the battles of Lexington and Concord? were the armies evenly matched? explain.

    asked by Jackson
  35. Math( help please ! )

    The profit p(x) of a cosmetics company , in thousands of dollars . is given by p(x) =-5t^2=400x-2550, where x is the amount spent on advertising in thousands of dollars a) determine the maximum profit the company can make b) dtermine the amount spent on

    asked by Erin
  36. chemistry

    How many milligrams of magnesium palmitate will precipitate from 965ml of this solution when it is cooled from 50C to 25C? For Mg(C16H21O2)2, Ksp= 4.8x10(-12) at 50C and 3.3x10(-12) at 25C.

    asked by matt
  37. chemistry

    Calculate the number of grams of CO2 is produced from 58.0g of glucose? ______g. CO2

    asked by Ginger
  38. math

    to compare3/8 and 9/16 what equivalent fraction could you find?

    asked by sunny
  39. Socials (URGENT)

    Why did the canadian government feel the need to control the economy, transportation and trade after war was declared in 1914? Was this a genuine need? Explain. Hi, I need some help on the second half of the question. Was it a genuine need? I can't find

    asked by John
  40. physics

    a fire hose held near the ground shoots water at a speed of 6.5m/s at what angle should the ozzle point in order that the water land 2.5m away? why are there two different angles?

    asked by kelly
  41. chemistry

    The element strontium has ccp packing with a face-centered cubic unit cell. The volume of the unit cell is 2.25 x 10-25 L. Calculate the density (g/mL) of the element.

    asked by ana
  42. Math 3 grade

    Draw two ways to show 43 using place-value blocks.

    asked by Rosa martines
  43. physics

    A block is given an initial velocity of 2.00 m/s up a frictionless 23.0° incline. How far up the incline does the block slide before coming (momentarily) to rest?

    asked by carlton
  44. science

    Which of the following substances are homogeneous and which are heterogeneous? Blood, carbon dioxide gas, solid carbon dioxide, rock, steak, iron, rust, concrete, air, oxygen, salt, milk.

    asked by Sheryl
  45. English

    The Lottery takes place on a beautiful summer day in a small town. Although the location of the town, is never given, it appears to be in a rural community. The story begin as a regural summer day, but has a surising ending. In the short story "The

    asked by Adrian
  46. STATS

    Scientists wish to test the mind-readiing ability of a person who claims to have ESP. They use five cards with different and distinctive symbols( square, cicrle, triangle, line, squiggle). Someone picks a card at random and thinks about the symbol. The

    asked by JONATHAN
  47. Socials

    Is billy bishop's diary a primary source? Evaluate it as a historical source. Please help. Not quite sure what this means. don't understand what the second part is telling me to do. thanks.

    asked by John
  48. physics

    A crate of weight Fg is pushed by a force on a horizontal floor. (a) If the coefficient of static friction is μs, and is directed at angle θ below the horizontal, show that the minimum value of P that will move the crate is given by the following

    asked by greg
  49. physics

    An electron of mass 9.11 10-31 kg has an initial speed of 3.00 105 m/s. It travels in a straight line, and its speed increases to 8.00 105 m/s in a distance of 10.0 cm. (a) Assuming its acceleration is constant, determine the force exerted on the electron.

    asked by carlton
  50. History

    Are ninjas real?

    asked by Gisele ;D
  51. Calculus

    Assume that x>0 and y>0. If y=5sqrt{x+9} and dx/dt = 2, find dy/dt when x=7.

    asked by Raj
  52. Chemistry

    An unknown molybdate (MoO4^-2) solution (50.00ml) was passed through a column containing Zn(s) to convert molybdate into Mo^3+. One mole of MoO4^-2 gives one mole of Mo^3+. The resulting sample required 22.11 ml of 0.01234 M KMnO4 to reach a purple end

    asked by Ken
  53. Physics

    A student ties a 600.0 g rock to a 1.50 m-long string and swings it around her head in a horizontal circle. At what angular speed (in rev/min) does the string tilt down at a 13.1° angle, assuming that the local acceleration due to gravity is -9.80 m/s2?

    asked by Helpp
  54. physics

    A block of mass m = 2.00 kg is released from rest at h = 0.400 m from the surface of a table, at the top of a θ = 35.0° incline as shown below. The frictionless incline is fixed on a table of height H = 2.00 m. (a) Determine the acceleration of the block

    asked by carlton
  55. Math: Calculus

    Assume that a population size at time t is N(t) and that N(t)=40 x 2^t , t>0. Show that N(t)=40e^t ln2 Can someone please guide me step by step on this question? Im really confused. thanks. I tried to work it out, and this is what I got. N(t)= 40 x 2^t =

    asked by Maria
  56. American Government

    What was the name of the nonmilitary struggle between the United States and its allies (anti-Communists) and the former Soviet Union and its allies (Communists) that began shortly after World War II and continued through the 1980s? a. Cold War. b.

    asked by Brann
  57. chemistry

    Calculate the number of grams of oxygen required to convert 58.0g of glucose to CO2 and H2O?

    asked by Ginger
  58. World History

    Explain why there was a conflict over the creation of Israel

    asked by De'Andre
  59. Physics

    A boy has a mass of 45 kg and is running with a velocity of 8 m/s. Find the boy's kinetic energy.

    asked by angela
  60. History

    how did the atlantic slave trade reflect the times during which it existed?

    asked by Keithrie
  61. Science

    what kind of plants have life cycle that last several years?

    asked by jasmine
  62. Chemistry

    Determine the frequency of light with a wavelength of 3.728 × 10 −7 cm. Answer in units of Hz Given the speed of light as 3.0 × 10 8 m/s, calculate the wavelength of the electromagnetic radiation whose frequency is 9.7 × 10 12 Hz. Answer in units of

    asked by Mariah
  63. Chemistry Help!!

    Arrange the following systems in order of increasing randomness or disorder(bring with the most ordered system) 1 mol liquid ammonia 1 mol gaseous ammonia 1 mol solid ammonia

    asked by Maci
  64. physics

    A canoe has a velocity of 0.39 southeast relative to the earth. The canoe is on a river that is flowing 0.59 east relative to the earth. Find the magnitude of the velocity of the canoe relative to the river. Find the direction of the velocity of the canoe

    asked by oguz
  65. Physics

    An Olympic long jumper is capable of jumping 8.3 m. Assume that his horizontal speed is 9.5 m/s as he leaves the ground. He was in the air for .87 seconds. How high does he go assuming that he lands upright, the same way he was when he left the ground?

    asked by Tina
  66. Chemistry

    You have 250 mL of a 0.80 M solution of silver nitrate AgNO3 (169.87 g/mol) dissolved in water. How many grams of AgNO3 does the solution contain?

    asked by sara
  67. MATH Middle School

    The area of two rectangles is 360 square centimeters. The length of the second rectangle is 12 cm greater than the first while its width is 5 cm less than the first. Find the difference of the perimeters of the two rectangles if the lengths and widths are

    asked by PLEASE HELP
  68. Chemistry

    What is the value of Kf for the formation of the ammine M(NH3)2+ ? Assume the concentration of M(NH3)n+ = 0.0020 M The data were graphed giving a straight line plot with an equation of y = -5.9484x - 9.4.

    asked by Amy
  69. physics

    In the Atwood machine shown below, m1 = 2.00 kg and m2 = 6.00 kg. The masses of the pulley and string are negligible by comparison. The pulley turns without friction and the string does not stretch. The lighter object is released with a sharp push that

    asked by carlton
  70. social studies

    What were some problems in jamestown

    asked by rashawn
  71. Chemistry

    A sample of the compound prepared in this experiment, weighing .1021g, is dissolved in HNO3 and diluted to a volume of 100mL. A 10mL aliquot of that solution is mixed iwth 10mL 6 M NH3. The [Cu(NH3)4 2+] in the resulting solution is 5.16x10^-3 M. How many

    asked by Anonymous
  72. Physics

    A 570.0 g ball moves in a vertical circle on a 103.0 cm-long string. If the speed at the top is 4.30 m/s, then the speed at the bottom will be 10.65 m/s. (you'll learn how to show this Chapter 10.) What is the gravitational force (in N) acting on the ball?

    asked by :(
  73. English

    Did you prefer the book "The Outsiders" or the film, or parts of both?Give reasons with evidence from the book and the film. Please consider and discuss different aspects such as: -characters -themes -portrayal of gang culture -relationships, and anything

    asked by Lyly
  74. physics

    light travels at a constant speed of 3x10^11 cm /sec how long does it take light to reach the earth a distance of 1.5x10^8 km give your answer in seconds and minutes.

    asked by Helppppp
  75. Physical Science

    The physical properties of ice are different from the physical properties of dry ice (frozen carbon dioxide). But the physical properties of gaseous water vapor and the physical properties of gaseous carbon dioxide are the same. Why? A.) The valence

    asked by Anonymous
  76. Science (Physics)

    Two 1.5 kg balls move away from each other, one traveling 9 m/s to the right, the other 2 m/s to the left. What is the magnitude of the total momen- tum of the system? Answer in units of kg · m/s

    asked by Taylor
  77. statistics

    From the MM207 Student Data Set identify the following: a) A variable measured at the nominal level of measurement. b) A variable measured at the ratio level of measurement. c) A variable measured at the ordinal level of measurement

    asked by Audrey
  78. Physics

    In figure, the mass m2 = 10 kg slides on a frictionless shelf. The coefficients of static and kinetic friction between m2 and m1 = 5 kg are µs = 0.6 and µk = 0.4. (a) What is the maximum acceleration of m1? (b) What is the maximum value of m3 if m1 moves

    asked by Eric
  79. Biology

    All cell are surrounded by membranes. The main role of the cell membrane is to A.regulate the cell's interactions with the environment b.release any type of molecule out of the cell c.arrange the cell's organelles in the cytoplasm d.prevent water from

    asked by Mario Garcia
  80. Maths (Linear Equation)

    Nine books are to be bought by a student. Some cost $6.00 each and the remainder cost $6.50 each. If the total amount spent was $56, how many of each book are bought?

    asked by Anonymous
  81. physics

    Imgaine that a cart intially moving with velocity V_0, collides with a cart at rest and then the two carts stick together. Find a equation for potential energy in this case.

    asked by Chris
  82. Calculus

    A particle, initially at rest, moves along the x-axis such that its acceleration at time t>0 is given by a(t)=cos(t). At the time t=0, its position is x=3. How do I find the position function for the particle? I tried integrating the equation but got

    asked by Anonymous
  83. English

    Please help me errors in my paper so I can correct them. The Lottery takes place on a beautiful summer day in a small town. Although the location of the town, is never given, it appears to be in a rural community. The story begin as a regural summer day,

    asked by Adrian
  84. Math

    what is the square root of -1

    asked by rock a by zombie
  85. physics

    As shown in the figure, a block of mass M1 = 0.470 kg is initially at rest on a slab of mass M2 = 0.850 kg, and the slab is initially at rest on a level table. A string of negligible mass is connected to the slab, runs over a frictionless pulley on the

    asked by Jimmy
  86. Math( help please ! )

    The height of a ball thrown vertically upward from a rooftop is modelled by h(t)=-5t^2=20t=50, where h(t) is the ball's height above the gorund,in meters, at time t seconds after the throw a) determine the maximum height of the ball b) how long does it

    asked by Erin
  87. physics

    Question Part Points Submissions Used An aluminum block, m1 = 3.00 kg, and a copper block, m2 = 1.14 kg, are connected by a light string over a frictionless pulley. They sit on a steel surface as shown in the figure below, where θ = 45.0°. (See the table

    asked by carlton
  88. economics

    5. A market contains a group of identical price-taking firms. Each firm has a marginal cost curve MC(Q) = 2Q, where Q is the annual output of each firm. A study reveals that each firm will produce if the price exceeds $20 per unit and will shut down if the

    asked by elizabeth
  89. managerial accounting

    For year ended December 31, 2006, firm a produced and sold 12,000 units of product. Fixed expenses associated with producing the product totaled $4000 for the year. A variable cost of $3.20 per unit was incurred to produce the product. Fixed expenses

    asked by mz nailz
  90. Chemistry

    What would be the number of elements in the fourth row of the periodic table?

    asked by Mwdh
  91. chemistry

    How many Moles of H are in 2.20 moles of H3PO4? and how do you figure that out? Thanks!

    asked by Alexa
  92. geometry

    If the base of an isosceles triangle has a length of 10, what is the shortest possible integral value for the length of each of the congruent sides?

    asked by dee
  93. English Composition

    We are to write a paragaph on how contentment plays a part when we balance school, work, and family. I'm not sure how to start.

    asked by Diane
  94. algebra

    Dale is choosing between two exercise routines. In Routine #1, he does only running, burning 10 calories per minute. In Routine #2, he burns 10 calories walking. He then runs at a rate that burns 8 calories per minute. For what amounts of time spent

    asked by justin
  95. Chemistry

    At 36.4°C a sample of ammonia gas exerts a pressure of 8.3 atm. What is the pressure when the volume of the gas is reduced to one-fourth of the original value at the same temperature.

    asked by Sven
  96. Chemistry 12

    Calculate the pH of the solution that results when 27.38mL of 0.15M H2SO4(aq) is mixed with 18.50mL of 0.19M Ca(OH)2 (aq)

    asked by Anonymous
  97. general chemistry

    A 0.500 g sample of a BaCl2•2H2O/Na2SO4 salt mixture, when mixed with water, filtered, and dried, produced 0.225 g of BaSO4. The Na2SO4 was determined to be the limiting reactant.

    asked by emma
  98. Statistics

    Scores on the Stanford-Binet Intelligence scale have a mean of 100 and a standard deviation of 16, and are presumed to be normally distributed. A person who scores 68 on this scale has what percentile rank within the population?

    asked by Jen
  99. trig

    as the sun rises it casts a long shadow over a boy who is leaning next to a tree. the tree is 35 feet tall and the sun's rays create an angle of depression of 70 degrees with the top of the tree. how long is the shadow

    asked by Anonymous
  100. Physics

    A 9.60 g coin is placed 10.7 cm from the center of a turntable. The coin has a coefficient of static friction of 0.80 and a coefficient of kinetic friction of 0.60 with the turntable. The turntable's angular velocity slowly speeds up until the coin starts

    asked by Dan
  101. History

    Name the two major alliance at the beginning of world war 1. And what three countries made up the Triple Entente?

    asked by daina
  102. physics

    To make a bounce pass, a player throws a 0.70-basketball toward the floor. The ball hits the floor with a speed of 5.9 at an angle of 70 to the vertical.If the ball rebounds with the same speed and angle, what was the impulse delivered to it by the floor?

    asked by aznkid
  103. Math

    A doctor asked 200 people over the age of 50 whether they suffered from depression or heart disease. The results were 16 suffered from depression, 28 suffered from heart disease and 24 suffered from both. In a group of 5000 people over the age of 50, how

    asked by Please help
  104. german

    What does this mean: Sie sind sehr hubsch. ??? :)

    asked by Alice
  105. History

    how would you have felt if you were an american and you found the Zimmerman note? In other words what is the Zimmerman note?

    asked by weston
  106. social studies

    Why did the people during the middle age fight in the crusades

    asked by rashawn
  107. Math

    Nine books are to be bought by a student. Some cost $6.00 each and the remainder cost $6.50 each. If the total amount spent was $56, how many of each book are bought?

    asked by Charmin
  108. Statistics

    The following data lists the average monthly snowfall for January in 15 cities around the US: 29 26 6 46 17 34 15 45 19 43 37 6 9 33 37 Find the mean, variance, and standard deviation.

    asked by Jennifer
  109. English

    Could you please check these two sentences, please? 1) Dorian wishes he would stay young forever whereas the portrait would grow old in his place. 2) According to Wordsworth, man and nature are (were) two different but inseparable parts of the same

    asked by Henry
  110. Statistics

    A sample of purchases at the local convenience store has resulted in the following sample data, where x = the number of items purchased per customer and f = the number of customers. x 1 2 3 4 5 f 5 15 8 8 7 •What does the 15 stand for in the above table?

    asked by Jen
  111. PHYSÝCS

    Find the speed of a satellite in a circular orbit around the Earth with a radius 3.65 times the mean radius of the Earth; RE= 6.37·103 km ME= 5.98·1024 kg

    asked by Jimmy
  112. PHYSICS

    a car traveling at a constant velocity of 30 m/sec passes an intersection at time t=0 45 seconds later a second car passes the same intersection and its traveling in the same direction at a constant velocity of 55 m/sec. when does the second car overtake

    asked by PHY
  113. french

    I need help unscrambling these french words: srteelt, sbrtmie and eiuocrrl. thank you for helping :)

    asked by laura
  114. Science

    What color does iodine turn into if starch is present?

    asked by Izzy
  115. trig

    50 feet

    asked by ..
  116. social studies

    What is feudalism

    asked by rashawn
  117. home inesurace

    The lump sum payment survivors receive from social security to help pay funeral and burial expenses is A.$255 B.$785 C.$1,000 D.$2,500

    asked by Ciara
  118. Chemistry

    125 mL of 1.00 HCl with 9.00 g of KOH. if the yield of KCL is 7.51 g what is the percent yield of the reaction

    asked by Nicole
  119. Chemistry

    Where two liquid substances are mixed together and a solid forms by a chemical reaction, the solid is known as what? Is it heterogeneous mixture? The fact that paper burns and turns into different substances is known as ____ ____of paper? I honestly am

    asked by Anonymous
  120. geography

    Name the four oceans in order of size, largest to smallest. My answer- Pacific Ocean, Atlantic Ocean, Indian Ocean, and Arctic Ocean. If I am wrong will you please give me a web site I can go to for the answer. I do not have a book at home to refer to for

    asked by Reed
  121. Tetraploid species

    Tetraploid species hybrid = example of a) aneuploidy b) autopolyploidy c) allopolyploiy d) endomitosis B? Down's syndrome = a) aneuploidy b) polyploidy c) triploidy d) autopolyploidy A? How do you increase large amounts of DNA in lab for region of 100kb

    asked by Mysterious
  122. Human Geo.

    Are there any squatter settlemets in French Guiana? Is there any terrorist activity in French Guiana, and if so what types? Can you please calculate the Agricultural density of French Guiana and show your work. What is the Natural Increse Rate of French

    asked by Angelique
  123. College Chemistry

    i was told to Convert 1 metric ton to grams ore then to grams TiO2 (using the 0.75% in the ore), then to g TiCl4 (using the 70%%) and finally to TiO2 final product (using the 93.0%)for the following questions, but im stuck after converting the metric ton

    asked by Anonymous
  124. calculus

    A chain saw requires 2 hours of assembly and a wood chipper 5 hours. A maximum of 20 hours of assembly time is available. The profit is 150 on a chain saw and 230 on a chipper. How many of each should be assembled for maximum profit.

    asked by jess
  125. U.S History

    what was the most important decision made by the continental congress? why?

    asked by Jackson
  126. Chemistry Help!!

    Predict whether triangle s would be positive or negative for each of the following; give a reason for your answer.

    asked by Maci
  127. Math/Calculus

    After 5 days, a particular radioactive substance decays to 37% of its original amount. Find the half life of this substance. Is this right? Th= ln 2/ln(1/.37) x 5 days

    asked by Christine
  128. probability

    8. (New Hare-Hunting Problem) In the woods, a hunter is shooting at a hare. The probability of success for his first shot is ½. If he misses the first shot, the probability of success for his second shot is 1/4. If he misses again, the hunter takes his

    asked by Anonymous
  129. math

    I learned that to make fraction into a percent just multiply with 100.However I tried to do 3/2 to percent it become 150 percent. In my understanding 2/3 is 1.5% please clarify

    asked by michael
  130. Ms. Sue

    Dear Ms. Sue, I want to thank you. You have been a great help to many people. You offer great advice. You have touched the lives of many people. You are truly a magnificent person. I honestly hope you live the rest of your life in happiness and bliss. A

    asked by Forever Greatful
  131. Comp 156

    What is the definition of a cause and effect essay? Describe a cause and effect situation related to the effect of video games addiction on society

    asked by Wonk
  132. Calculus

    find the critical numbers of the function: h(p)=p-1/p^2+4

    asked by Debbie
  133. statistics

    what is a t-test

    asked by jackie
  134. physics

    what are the units of measures used to measure heat

    asked by Anonymous
  135. Fibonacci Numbers

    I need to find f24. I know F23=28657 and f25=75025. I have figured out that F24 is 46368 using F(n)=F(n-1)+F(n-2). My problme is asking me for two values of n for which Fn=n. I do not understand what it is asking.

    asked by Rachel
  136. social studies

    What is another name for a tribe's tribal healer/medicine man/ spiritual leader?

    asked by Bell
  137. College Physics

    For the system of two crates and a pulley in Figure P9.14, (m1 = 28.5 kg, m2 = 10 kg, mpulley = 8 kg), what fraction of the total kinetic energy resides in the pulley?

    asked by Sydney
  138. statistics

    A telephone company's goal is to have no more than four monthly line failures on any 50 miles of line. The company currently experiences an average of 4 monthly line failures per 25 miles of line. Let x denote the number of monthly line failures per 50

    asked by Anonymous
  139. hvac

    calculate the amount of heat required to change 5 pounds of ice at 32 degrees to water 32 degrees

    asked by miguel
  140. Biology

    In drosophila , short wings , and black colour are reccessive traits.long wings and grey colour are dominant. show the cross results between a short winged , heterozygous grey fly and a heterzygous long winged grey fly

    asked by Melissa
  141. geometry

    If the sum of the lenghts of two sides of a triangle is 15, what is the largest possible integral value for the third side?

    asked by Brittany
  142. algebra

    15x^2 / 15x+10 simpfly each and exclude the values

    asked by morggg
  143. Chemistry

    Please!!! its extremely urgent. i do not need answers, only how to do it A sample of nitrogen gas (N2) kept in a container of volume 10.1 L and at a temperature of 20.3°C exerts a pressure of 3.1 atm. Calculate the number of grams of gas present. Round to

    asked by Javier
  144. Chemistry

    Doing some practice problems, these are a couple of my answers. Are these written correctly? Write the conjugate acid: a)HPO4(2-) Answer: HPO4(2-) + H(+) --> H2PO4(-) b)NO2(-) Answer: NO2(-)+ H(+) --> HNO2

    asked by Kevin
  145. Writing

    I'm not sure how to edit this business letter. Please help! I'm not sure what to do when there is an address for another business? Please help edit paper! Thank you! Dear Ms. Drager: In connection with an examination of our financial statements by

    asked by Kenji
  146. chemistry

    What pressure (atm) is exerted by a column of ethanol 49.0 cm high? The density of ethanol is 0.789 g/cm3 and 9.8m/s2 as your gravitational constant.

    asked by james
  147. chemistry

    A 45.3 cm3 bubble of air at 1 atm pressure is subjected to a new pressure of 4.7 atm. What will be the new volume (cm3)?

    asked by james
  148. Physical Science

    What kind(s) of particles make up (a) gaseous compound (b) liquid compound (c) solid compound?

    asked by Brooke
  149. algebra

    The perimeter of a rectangular field is 312 yards. If the length of the field is 93 yards what is its width?

    asked by emma
  150. calculus

    Find the cubic function of the form y=ax^3 + bx^2 + cx + d which has a relative maximum point at (0,2) and a point of inflection at (-1,-2). How do I even start this one?

    asked by Anonymous
  151. Chemistry

    125 mL of 1.00 M HCl with 9.00 g of KOH. if the yield of KCL is 7.51 g what is the percent yield of the reaction HCl + KOH -> KCl + H2O

    asked by Nicole
  152. Math

    Can you list all the COMPOSITE numbers less than 100 whose units digit is 3 ?

    asked by StudentJ
  153. Chemistry

    Which of the following gases will occupy the smallest volume at 300 K and 760 torr and why? 80 g diatomic oxygen 80 g methane 80 g hydrogen fluoride

    asked by Sven
  154. geometry

    if ab is perpendicular to bc find the measure of each angle in the figure below

    asked by Tatyana
  155. Statistics

    In terms of the mean and standard deviation: -What does it mean to say that a particular value of x has a standard score of +2.1? -What does it mean to say that a particular value of x has a z-score of -2.4?

    asked by Jen
  156. Chemistry Help!!

    when triangle s (entropy) is positive does that mean that the disorder has increased or decreased? Explain

    asked by Maci
  157. physics

    ojee a benz mechanic tries to remove an engine from a car by attaching a chain to it from a point directly overhead and then pulling sideways with horizontal force F.if the engine has mass 180 kg.what is the tension in the chain when it makes an angle

    asked by motunrayo
  158. Statistics

    SAT I scores around the nation tend to have a mean scale score around 500, a standard deviation of about 100 points, and are approximately normally distributed. What SAT I score within the population would have a percentile rank of approximately 16?

    asked by Jen
  159. chemistry

    How many grams of LiH are needed to fill a 3.3 L life belt with hydrogen gas at 0.93 atm and 28.5°C?

    asked by Sven
  160. Science

    Calculate the mass percent of sand, sodium chloride and copper (II) sulfate in a sample which yields the following data: mass of sample = 1.088g, mass of sand = 0.2255g, mass of copper (II) oxide = 0.1994g (assume 100% yield for each of the copper (II)

    asked by Shangkary
  161. Algebra- Please Help!

    Solve and show work for each proportion. 2x-2/14 = 2x-4/6 x+2/6 = x-1/12

    asked by Brianna
  162. world

    Monotheism, a religious doctrine that recognizes a single supreme god, first arose in Southwest Asia around _________ BC.

    asked by Anonymous
  163. Statistics

    A set of 50 data values has a mean of 35 and a variance of 25. I. Find the standard score (z) for a data value = 26. II. Find the probability of a data value > 26.

    asked by don
  164. Physical Education

    Im just wondering, why isnt it an elective?

    asked by Bryce
  165. chemistry

    a solution of an unknown metal chloride (0.8870 g) was treated with silver nitrate to yield (1.9132 g). calculate the percentage by mass of chloride in the unknown chloride

    asked by TROUBLED
  166. Botany

    what kind of plants have life cycle that last several years?

    asked by jasmine
  167. physics

    A marble block of mass m1 = 500.1 kg and a granite block of mass m2 = 237.4 kg are connected to each other by a rope that runs over a pulley, as shown in the figure. Both blocks are located on inclined planes with angles á = 35.3 degrees and â = 56.7

    asked by Jimmy
  168. geometry

    if a measure of an angle is -2x^2+19x and the measure of it's supplement is 4x^2-6 what's the measure of angle and supplement

    asked by ahmad
  169. physics

    A 450 g block is at rest on a horizontal surface. The coefficient of static friction between the block and the surface is 0.670, and the coefficient of kinetic friction is 0.380. A force of magnitude P pushes the block forward and downward as shown in the

    asked by carlton
  170. trig

    find the exact values of the six trig functions of theta equals six pi divided by 8

    asked by don
  171. chemistry

    a solution of an unknown metal chloride (0.08870 g ) was treated with silver nitrate to yield AgCl ( 1.9132 g ). calculate the percentage by mass of chlorine in the unknown chloride

    asked by TROUBLED
  172. Calculus

    suppose a balloon used in angioplasty is a 30mm long cylinder, with hemispherical caps at both ends.Determine a relationship between the rate of change in the volume of the balloon and the rate of change of its diameter.

    asked by Debbie
  173. language

    Verbs in Predicates A. Write the verb in the complete predicate. 1. They climb mountain. 2. They sit by waterfalls. 3. Rangers share nature stories. 4. Guides explain different areas. 5. Visitor like the area. Answer 1. Climb mountains. 2. Sit by

    asked by jjg
  174. Algebra

    How do I graph a line given its equation? The equation is -3x + 2y = 2

    asked by Sue
  175. Physical Science

    Estimate the volume of an atom of iron 56Fe given atomic number: 26 A.) 8.6 x 10-24 cc B.) 1.2 x 10-23 cc C.) 2.4 x 1024 cc D.) 3.6 x 1024 cc

    asked by Anonymous
  176. Math

    Can you list all composite numbers less than 100 whose unit's digit is 3 ?

    asked by StudentJ
  177. Chemistry

    "Suppose some sort of clamp is applied to hold an electron fixed at the distance of 2.5 Angstroms from a lithium nucleus Li3+ which is also clamped into position. Calculate the magnitude of the force between the two fixed particles." The books says the

    asked by Zach
  178. Chemistry

    A 12 g sample of an unknown compound contains 3.489 g of sodium and 4.870 g of sulfur. The rest is oxygen. Name the compound Thank you!

    asked by Mom
  179. English

    In Playboy of the Western World by J.M. Synge what are some characteristics or moments that would invoke a violent reaction in todays culture?

    asked by Jake
  180. math

    write an equation of the line containing the specified point and perpendicular to the indicated line? (-2,-5),x-2-2y=3

    asked by Sherry
  181. algebra2

    x+1/2y=5 solve the equation for y show steps

    asked by jay
  182. Science

    In drosophila , short wings , and black colour are reccessive traits.long wings and grey colour are dominant. show the cross results between a short winged , heterozygous grey fly and a heterzygous long winged grey fly

    asked by Erin
  183. cultural anthropology

    Which of the following would anthropologists not consider a caste? A) the Eta of Japan B) Blacks in the American South in segregation days C) Anthropologists would classify all of these groups as castes. D) the Camar (leather-workers) of India

    asked by Tasha
  184. algerba 2

    x=4y-1 solve the equation for y show steps

    asked by jay
  185. science

    you and a child are on skates and you give each other a push. if the mass of the child is half your mass, who has the greater acceleration? by what factor? i know it is the child but im not sure about the factor. im pretty sure the answer has something to

    asked by Cowgirl
  186. math

    Lan has 6 books for each book he has 2 science books he has 2 animl books how many books does have

    asked by gad
  187. trig

    if x=4 tan theta, express cos(2 theta) as a function of x

    asked by Lisa
  188. spanish/ pleeease help me

    Say what the salespeople and customers tell each other .(indirect object pronouns)example: yo/a los amigos :yo / buscar / aretes/ plata answer: les digo que busco unos aretes de plata 1 vendor/a mi:aretes/ costar/50/pesos 2 yo/al vendedor: aretes/ ser/caro

    asked by mike
  189. Physics

    A 6.80 g coin is placed 10.0 cm from the center of a turntable. The coin has a coefficient of static friction of 0.80 and a coefficient of kinetic friction of 0.60 with the turntable. The turntable's angular velocity slowly speeds up until the coin starts

    asked by Helpp
  190. Biology

    Which root system is most effect anchor? And which is the most effective for storage of nutrients, why? I thought that the best anchor would be the taproot but I don't know how to figure out which is best for storing nutirents?

    asked by Teddy
  191. U.S History

    What is the Native American group that allied with Pitt's British troops?

    asked by Stevie
  192. geometry

    what is the height of a cone with a volume of 66 cubic centimeters and a base with a radius of 3 centimeters

    asked by sal
  193. Chemistry

    So if i want to write the conjugate base for NH3, NH3 NH2 + H(+)

    asked by Kevin
  194. Chemistry

    What pressure (atm) is exerted by a column of ethanol 49.0 cm high? The density of ethanol is 0.789 g/cm3 and 9.8m/s2 as your gravitational constant.

    asked by Sven
  195. Chemistry

    A 143.8 cm3 bubble under the ocean at 2.8 atm and 14.3oC surfaces to 1.0 atm and 22.6oC. What is the new volume (in cm3)?

    asked by Sven
  196. Chemistry

    At what temperature (oC) will a gas sample occupy 9.8 L if it originally occupies 14.2 L at 25.9oC?

    asked by Sven
  197. Chemistry

    What volume (in ml) of carbon dioxide will form if 19.3 ml of O2 are reacted acccording to the following balanced equation: 2CO(g) + O2(g) --> 2CO2(g) Assume an excess of CO and that all are at the same temperature and pressure.

    asked by Sven
  198. Chemistry

    A sample of nitrogen gas (N2) kept in a container of volume 11.7 L and at a temperature of 23.3°C exerts a pressure of 2.6 atm. Calculate the number of grams of gas present.

    asked by Sven
  199. Biology

    All cell are surrounded by membranes. The main role of the cell membrane is to A.regulate the cell's interactions with the environment b.release any type of molecule out of the cell c.arrange the cell's organelles in the cytoplasm d.prevent water from

    asked by Mario Garcia
  200. Physics

    1. Carlos jogs in a straight line at a constant speed of 1.5 m/s. He passes by Victoria, who, 10 seconds after Carlos had passed her, starts accelerating at a constant rate of 0.50 m/s^2 a) How much time after the passing of Carlos does it take Victoria to

    asked by Raf
  201. social studies

    What was promised in the mayflower compact

    asked by rashawn
  202. physical science

    The ionization energies of Li, Na, K, Rb, and Cs are respectively 5.4, 5.1, 4.3, 4.2, and 3.9 eV. All are in Group 1 of the periodic table. Explain the decrease in ionization energy with increasing atomic number in this group.

    asked by Sheryl
  203. physics

    2000N

    asked by Anonymous
  204. Statistic

    A distribution has a standard deviation of ó = 9.5. Find the z-score for a score above the mean by 4 points. note: round to 2 decimal places, and enter the value of the z-score but do not write "z = " in your answer

    asked by Emilia
  205. Calculus

    F(x) = cos(x) • the integral from 2 to x² + 1 of e^(u² +5)du Find F'(x). When i did this, i got: -2xsin(x)e^((x²+1)² + 5) But my teacher got: -sin(x) • the integral from x² + 1 of e^(u² +5)du + 2xcos(x)e^((x²+1)² + 5) Do you know why the

    asked by Erica
  206. calculus

    -7-2

    asked by Anonymous
  207. social studies

    What make the Spanish go to coast of mexico?

    asked by stephanie
  208. Calculus

    Given that y=x^(5/2)- x^(-1/2) . a) Find the coordinates where the tangent line is parallel to the line y-4x-4=0. b) Find the coordinates where the tangent line is perpendicular to the line 2y-3x-12=0.

    asked by Alia
  209. Health

    Disease Trends and the Delivery of Health Care Services I need a final paper on this topic. any help would be wonderful. will give more information when someone is willing to help. Thanks

    asked by teetee2478
  210. History

    how did the atlantic slave trade reflect the times during which it existed?

    asked by Keithrie
  211. MATH

    0.001=10^___ 1 billion=10^___ 1/10 = 10^___ 13^5 in standard notation 10^9 in standard notation please hellp me answer tese questions

    asked by maryam
  212. dbm 380

    • Create a detailed ERD using the Entities and Attributes for Driver's Log document found on the Huffman Trucking Intranet site.

    asked by mike
  213. English

    I urgently need to express in words the following diagram which illustrates the process of poetic creation. 1. sensory experience. 2. emotion 3. recollection in tranquillity. 4 contemplation of emotion. 5. production of kindred emotion. 6. poetry. The

    asked by Henry
  214. chemistry

    a solution of an unknown metal chloride (0.08870 g ) was treated with silver nitrate to yield AgCl ( 1.9132 g ). calculate the percentage by mass of chlorine in the unknown chloride

    asked by TROUBLED
  215. Physical Science

    A chemist is investigating an unknown gas. She observes that it combines with oxygen. It takes two liters of oxygen to fully react with one liter of the unknown gas, and that the resulting volume of gas is also two liters. What does she conclude? A.) The

    asked by Anonymous
  216. U.S History

    WHAT EVENTS LED UP TO THE BOSTON TEA PARTY

    asked by Jackson
  217. algerba 2

    3x-2y=12 solve the equation for y

    asked by jay
  218. Physics

    A rolling ball has an initial velocity of 1.6 m/s if the ball has a constant acceleration of .33 what is the velocity after 3.6 and the how far did the ball travel

    asked by JJJ
  219. Interest Rate

    Is there an easier way to comprend how inflation, expectations, and risk combine to determine interest rates? I understand how risk plays a factor but I am unclear on expectations plays a role.

    asked by Finance
  220. managerial accounting

    Werntz furniture had actual sales for July and august and forecasted sales for September, October, November and December as follows: Actual: July………………………………………………………….$ 98,000

    asked by mz nailz
  221. Biology

    Which internal organs of the fetal pig appear to have the greatest amounts of blood supplied to them? Why does this make sense?

    asked by Grace
  222. English

    I left out 2 sentences I'd like you to check. Thank you. 1)Sybil is the only thing Dorian cares about (is for possible?). French artists devoted themselves to the search of beauty. 2) They persued any kind of sensations. After lookig at the picture, Lord

    asked by Henry
  223. Fluid Mechanics

    . A plate of mass M is suspended between two opposing jets, each of area A, velocity Vo and density . The plate is suddenly given a velocity Vo parallel to one of the jets. Determine the subsequent motion of the plate (x(t)), and the maximum

    asked by Paul
  224. algebra 2

    where do these two lines intersect?2x+3y=54 and 6x+9y=-54

    asked by sisi
  225. Physics

    A 70 kg block is pulled at a constant speed of 6.4 m/s across a horizontal floor by an applied force of 102 N directed 37° above the horizontal. What is the rate at which the force does work on the block?

    asked by Maja
  226. History

    what was the goal of roosevelt's corollary to the monroe doctrine

    asked by sadie
  227. hvac

    what is the required input in watts to operate a 70 percent efficient three-horsepower electric motor

    asked by miguel
  228. language

    B. Write the complete predicate in each sentence. Underline the verb in the complete predicate. 1. People share beautiful parks. 2. They make plans for their neighborhood activities together. 3. Voters give their opinions on mayor issues. 4. Businesses

    asked by jg
  229. biology

    A woman has difficulty becoming pregnant and when her karyotype is examined it is found that she is heterozygous for a large reciprocal translocation between her second and seventh chromosomes. a) is it possible for her to have a child? b) How can her

    asked by Akhil
  230. spanish help please

    combina las palabras y escribe una oracion que indica lo que dicen los vendedores y los clientes example yo/ a los amigos :yo /buscar/ aretes / plata answer les digo que busco unos aretes de plata 1 vendor/a mi:aretes/ costar/50/pesos 2 yo/al vendedor:

    asked by mike
  231. statistics

    The Frayed Nerves Anxiety Scale (FNAS) is used to measure the anxiety level of people on a scale from 0 to 1000. Four students were randomly chosen and given the FNAS before their second exam. Their scores were 700, 653, 740, and 707. The standard

    asked by Anand
  232. algerbra 2

    x^5*x^3 simplify the expression

    asked by jay
  233. algerbra 2

    x^5*x^3 simplify the expression

    asked by jay
  234. History

    what did conscientious objectors do during world war one

    asked by miranda
  235. social studies

    How did the spice trade inspire people to come to america

    asked by rashawn
  236. social studies

    When king henry died who took the throne

    asked by rashawn
  237. social studies

    How did reading help the middle class

    asked by rashawn
  238. trig

    cos 8 degrees fo feet 25 inches??

    asked by ..
  239. physics please help!!

    Two acrobats, each of 78.0 kg, launch themselves together from a swing, holding hands. Their velocity at launch was 6.80 m/s and the angle of their initial velocity relative to the horizontal was 28.0 degrees upwards. At the top of their trajectory, their

    asked by archi
  240. math

    my equation is m 2=c. I want to use my equation to find the cost of a 60-mile trip.

    asked by Christina
  241. social studies

    What did they discover on the way back to europe

    asked by rashawn
  242. chemistry

    A balloon is filled with 2.2 cm3 helium gas at 132.4 atm pressure. What will be the new pressure (atm) if the volume is changed to 68.6 cm3?

    asked by james
  243. spelling

    ____ rules are loosely enforced

    asked by Anonymous
  244. Physics

    Commercial aircrafts usually bank at an angle of no more than 30.0 degrees when turning. At 30.0 degrees of bank, how many g's of lift must the aircraft pull if it is to maintain uniform circular motion without losing altitude?

    asked by Lauren
  245. Physics

    A ferry is crossing a river. The ferry is headed due north with a speed of 2.8 m/s relative to the water and the river’s velocity is 4.9 m/s to the east. a) What is magnitude of the boat’s velocity relative to Earth

    asked by Dana
  246. Physics

    A ferry is crossing a river. The ferry is headed due north with a speed of 2.8 m/s relative to the water and the river’s velocity is 4.9 m/s to the east. a) What is magnitude of the boat’s velocity relative to Earth

    asked by Dana
  247. Math

    A craft store needs 5,126 yards of special order ribbon and 2,654 yards of a velvet ribbon. The ribbons come pre-packaged on rolls of 30 yards each. How many rolls will be in the order?

    asked by HELP HELP
  248. chemistry

    What is the pH of a 0.150 M NH4CN

    asked by Anonymous
  249. temperture

    c= 5over9 (f-32)

    asked by sal
  250. social studies

    What was the religious reason why people left europe

    asked by rashawn
  251. Bio Lit

    Haiku on a Cell

    asked by jenny
  252. physics

    How do you find a velocity-time graph from a position-time graph. pls help. i do not understand how to do it

    asked by ted
  253. Bio lit

    limerick on cell

    asked by jenny
  254. physics

    How do you find a velocity-time graph from a position-time graph. pls help. i do not understand how to do it

    asked by ted
  255. physics

    How do you find a velocity-time graph from a position-time graph. pls help. i do not understand how to do it

    asked by ted
  256. bio lit

    Concrete Poem on a cell

    asked by jenny
  257. social studies

    How did the spice trade inspire people to come to america

    asked by rashawn
  258. Stats

    For a particular sample of 63 scores on a psychology exam, the following results were obtained. First quartile = 57 Third quartile = 87 Standard deviation = 9 Range = 51 Mean = 72 Median = 72 Mode = 98 Midrange = 57 Answer each of the following: I. What

    asked by Jen
  259. physical science

    Would you expect magnesium or calcium to be the more active metal? Explain your answer in terms of atomic structure.

    asked by Sheryl
  260. Geography

    I just want to make sure that I have the correct answers for 2 questions: 1. The western part of North America is more mountainous than the eastern part. 2. Chile is the longest country in South America.

    asked by Sean
  261. Statistics

    A student scored 81 percent on a test, and was in the 77th percentile. Explain these two numbers.

    asked by Jen
  262. Statistics

    In each of the four examples listed below, one of the given variables is independent (x) and one of the given variables is dependent (y). Indicate in each case which variable is independent and which variable is dependent. I. Rainfall; Crop yield II. Taxi

    asked by Jen
  263. physics

    ojee a benz mechanic tries to remove an engine from a car by attaching a chain to it from a point directly overhead and then pulling sideways with horizontal force F.if the engine has mass 180 kg.what is the tension in the chain when it makes an angle

    asked by motunrayo
  264. math

    how do you show work for 69 divided by 50

    asked by janan
  265. math

    how do you show work for 69 divided by 50

    asked by janan
  266. Physics

    Can the coefficient of static friction be greater than one? Less than zero? How about for the coefficient of kinetic friction? Please explain.

    asked by A
  267. english

    hi can you please proof read this and make sure it sounds alright. thanks. Playboy of the Western World is a novel that invoked hostility from nationalist crowds in Dublin. Throughout the book there were several occasions where violent reactions could have

    asked by Jake
  268. social studies

    who were the first slaves in the new world? How did the first African slaves reach the Americas?

    asked by stephanie
  269. English

    I forgot to include the following sentences. Thank you. 1) Wordsworth recollects/recounts the experience of a walk he went on/for with his sister Dorothy, near their home in the Lake District. 2) The poet is completely detached from the outside world. He

    asked by Henry
  270. Education

    What is the background of poor porfamance primary schools?

    asked by Education
  271. gen/105

    Suppose you had to write a paper on academic honesty in higher learning. Conduct an Internet search on this topic and answer the following questions: What search engines did you use? What search techniques did you use? What Web sites did you visit? Comment

    asked by KIm
  272. English

    I am in the 4th grade and do not understand transition words. Please help.

    asked by Kaden
  273. SULOCHANDEVI SINGHANIA SCHOOL

    Express 0.143 as a rational number

    asked by DSHRUMIL
  274. Education

    What is the background of poor porfamance primary schools?

    asked by Education
  275. Science

    when heat and change of temperature happens this occurs what?

    asked by Joey
  276. math

    what is 13+x=0 ?

    asked by Anonymous
  277. chemistry

    a solution of an unknown metal chloride (0.8870 g) was treated with silver nitrate to yield (1.9132 g). calculate the percentage by mass of chloride in the unknown chloride

    asked by TROUBLED
  278. physics

    A bowling ball weighing 40.0 N initially moves at a speed of 4.90 m/s. How long must a force of 54.0 N be applied to the ball to stop it?

    asked by klbiesec
  279. botany

    why are green algae classified as plants and noy proyists?

    asked by jasmine
  280. Science

    If earths mass were reduced by 1/2 , but its radious satyed the same , how much would your weight change ? Would it also be reduced by half ?

    asked by Rob
  281. Spelling Skills

    Use the spelling words in the boxes below to complete the story. Then use proofreading marks to correct mistakes in the use of capital letters and periods.

    asked by Kelsey
  282. social studies

    Who were the first slaves in the New World?

    asked by stephanie
  283. Hum Media 176

    What media sources are used to obtain news?

    asked by Wonk
  284. Science, Geology

    How are polonium halos evidence for rapid hydrothermal flow and rapid metamorphism in the Smoky Mountains?

    asked by Bruno
  285. math

    3a to the third plus 12a squared minus 63a

    asked by Emily
  286. Hum Media 176

    Do we have too many media choices? Do 24-hour cable-news networks such as CNN and Fox News enhance our ability to find information or hamper it? Are 24-hours news stations necessary?

    asked by Wonk
  287. Math( help please ! )

    determine the maximum or the minimum of a)2x^2+12x

    asked by Erin
  288. Science

    what type of plants that leave several years?

    asked by jasmine
  289. science

    how do iron bits attract magent

    asked by vern
  290. math

    how can i estimate 28times8times89.

    asked by j'zon
  291. Biology

    What is Ethology?

    asked by Meron
  292. statistics

    given the data set below what would be the percentile rank of the number 6 2;8;6;9;5

    asked by Anonymous
  293. business

    You have decided to develop a worksheet for each manufacturing facility manager to submit each week. It should show total production and revenue, and total scrap and cost for each product for the week, if a facility drops below 5,000 units of production on

    asked by catrice
  294. geography

    Can you please help me with climate zones?

    asked by Michelle
  295. physics

    is it possible to launch satelite whìch rotates just above kathmandu?

    asked by gallium
  296. Math

    Let k be a positive integer and p a prime number. Show that if p^2 is a factor of k, but p^3 is not a factor of k, this implies that k^(1/3) is not a rational number. Regards

    asked by David Vader Smith Wise Brown
  297. History

    Did wilson put trade restrictions on germany as one of his 14 points?

    asked by daina
  298. Anthropology, sociology and psychology

    How can communication shape human behavior? pls help

    asked by ted
  299. geography

    Question:If it is winter in New York what is it in Minnesota?PLEASE HELP!!!!!!!!!!!!!!

    asked by Michelle
  300. calculus

    for a given patient it is determined that the blood vessel may rupture if its diameter increases faster than 200 um/s. The blood vessel starts with diameter 4mm and needs to expand to a diameter of 7mm. Is it safe to inflate the balloon at a constant rate

    asked by Debbie
  301. Biology

    Is the pancreas an exocrine or endocrine gland? Indicate the anatomical evidence on your fetal pig. What are its contributions to digestion and where are they added to the digestive tract?

    asked by Grace
  302. math

    How can you divide m by 3 using an input and out put table?

    asked by David
  303. geography

    If it is summer in Africa whatis it saudi arabia?HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    asked by Michelle
  304. History

    what were 5 new weapons used in world war 1?

    asked by ali
  305. Anatomy

    Given the idea that muscles pulling on bones causes movement of the body. Explain the actions that occur as a person takes two steps. (Describe muscle contractions and relaxations in both the leg leaving the ground and the one remaining on the ground.)

    asked by Timmi
  306. Physics

    A 70 kg block is pulled at a constant speed of 6.4 m/s across a horizontal floor by an applied force of 102 N directed 37° above the horizontal. What is the rate at which the force does work on the block?

    asked by Maja
  307. Spanish-9th grade

    Could you please check if these are correct? Thank you- 1.¿Necesitas monedas para coleccionar monedas? Sí. Las necesito para coleccionar monedas. 2. .¿Necesitas el bate para jugar al tenis? No,lo necesito para jugar al tenis. 3. Me hablas? Sí, te

    asked by Beth
  308. science

    how long does a teenager need to sleep at night?? my teacher asked this question and if you get it right, you get 2 extra points on a test, so please help me!!

    asked by hannah
  309. spanish

    Dónde pone la Sra. Quintana la tarea

    asked by Anonymous
  310. physics

    if a bus traverses a distance of 10,000 cm with the uniform velocity of 10 m/sec, what is its total time of travel?

    asked by shyvia sims
  311. Human Geo

    what languages are spoken in French Guiana? For each language can you provide the percentage of it.

    asked by Angelique
  312. science

    A model rocket blasts off from the ground, rising straight upward with a constant acceleration that has a magnitude of 86.9 m/s2 for 1.69 seconds, at which point its fuel abruptly runs out. Air resistance has no effect on its flight. What maximum altitude

    asked by Anonymous
  313. Biology

    Name all the structures that bile passes through (in order) from its creation to where it actually functions.

    asked by Teddy
  314. Calculus

    (A) Given that P = {X0, X1, X2.......Xn} is an arbitrary partition of [a,b], find the lower and upper sum for f(x)=x+3. (B) Use your answers to part (a) to evaluate the integral of f(x) from a to b.

    asked by Shayna
  315. Quote

    can anyone please explain what this quote means? thank you "Man is nothing else but what he makes of himself.” ~Jean-Paul Sartre

    asked by John
  316. stats

    Find the probability that the company will meet its goal on a particular 50 miles of line

    asked by Anonymous
  317. trig

    A third point C lies on the ground 5.4m from N the angle of depression of C from R is X degrees. Calculate to the nearest degrees the value of X.

    asked by Anonymous
  318. biology

    Suppose we want to maintain a large number of homozygous lethal chromosomes, exposed to chemical mutagens, for a mutation screening experiment in a small orb web building spider species. One of these lines has a dominant mutant named Disordered (D) that

    asked by Akhil
  319. pre calculus.

    x is a first quadrant angle. In what quadrant(s) does the terminal side for 2x lie?

    asked by Sarah
  320. biology

    An individual with Down's syndrome has repeat length alleles of size 8, 13, and 14 for a microsatellite near the centromere of chromosome 23. Her mother is homozygous for the 13 repeat allele. Her father is heterozygous for 8 and 14. What can we say about

    asked by Akhil
  321. Physics

    A 70 kg block is pulled at a constant speed of 6.4 m/s across a horizontal floor by an applied force of 102 N directed 37° above the horizontal. What is the rate at which the force does work on the block?

    asked by Maja
  322. Calculus

    Find f'(x) for f(x)=sec^2x^2

    asked by Luke
  323. american history

    who won the election of 1920 and what was his promise to the nation?

    asked by jenny
  324. math

    my equation is y= -x-3. the y-intercept is (0,-3) and the slope is -1. if i were to draw a chart starting from x being -3. would it be like this: (-3,0) (-2,-1) (-1,-2) (0,-3) (1,-4) (2,-5) (3,-6) just want to know if it is correct

    asked by kara
  325. trig

    the basic N of an antenna rests on horizontal ground. the angle of elevation of the top R from a pt H on the ground is 42 degrees

    asked by Anonymous
  326. Math( help please ! )

    Determine the maximum of or the minimum value of y=2x^2+12x

    asked by Melissa
  327. home insurance

    The U.S congress added disability insurance to the social security act in 19___. A.35 B.54 C.65 D.72 i got A

    asked by Ciara
  328. HS - English

    I need an example of how to write an annotated bibliography for the book No Country For Old Men. everytime I redo the assignment my teacher says I am just writing a summary not really an annotated bibliography

    asked by raiyn
  329. physics

    one gram of gold can be drawn into a wire 2.25 km long. What is the resistance of such a wire at 20°C?

    asked by Anonymous
  330. Science

    WHY is chlorophyll neccessary in photosynthesis?

    asked by Izzy