Questions Asked on
November 22, 2010

  1. Physics

    The blades in a blender rotate at a rate of 6500 rpm. When the motor is turned off during operation, the blades slow to rest in 2.6 s. 1. What is the angular acceleration as the blades slow down?

    asked by Nick
  2. Calculus

    A water tank has a shape of an inverted circular cone with base radius 3 m and height of 5 m. If the water is being pumped into the tank at a rate of 2 m^3 /min, find the rate at which the water level is rising when the water is 3 m deep.

    asked by Jay
  3. physics

    A 66.0 kg man is ice-skating due north with a velocity of 5.70 m/s when he collides with a 36.0 kg child. The man and child stay together hand have a velocity of 2.20 m/s at an angle of 33.0° north of east immediately after the collision. What was the

    asked by Please Help!
  4. Physics

    A laser beam is directed at the Moon, 380,000 km from Earth. The beam diverges at an angle of 4.6×10−5 rad. 1. What diameter spot will it make on the Moon?

    asked by Nick
  5. chemistry

    A mixture of 2.0 mol H2 and 1.0 mol of O2 is placed in a sealed evacuated container made of a perfect insulating material at 28C. The mixture is ignited with a spark and it reacts to form liquid water. What is the final temperature of the water

    asked by John
  6. Chemistry.

    Ca(HCO3)2(s) decomposes at elevated temperatures according to the stoichiometric equation Ca(HCO3)2(s)-> CaCO3(s) + H2O(g) + CO2(g) a.) If pure Ca(HCO3)2(s) is put into a sealed vessel, the air is pumped out, and the vessel and its contents are heated, the

    asked by Jill
  7. physics

    A 1.3- block of ice is initially at a temperature of -3.5. If 6.6×105 of heat are added to the ice, what is the final temperature of the system? Find the amount of ice, if any, that remains. Suppose the amount of heat added to the ice block is doubled. By

    asked by katelyn
  8. Statistics

    A research group conducted an extensive survey of 3078 wage and salaried workers on issues ranging from relationships with their bosses to household chores. The data were gathered through hour-long telephone interviews with a nationally representative

    asked by Anonymous
  9. physics

    two crates, of mass 75 kg and 113 kg, are in contact and at rest on a horizontal surface. A 727 N force is exerted on the 75 kg crate. If the coefficient of kinetic friction is 0.15, calculate the following: a)the acceleration of the system b) the force

    asked by Haley
  10. chemistry

    A 0.446 g- sample of an unknown monoprotic acid was titrated with 0.105 M KOH. the molar mass is 120 g/mol What is the pKa value?

    asked by james
  11. chemistry

    when a 8.77g mixture of methane, and ethane is burned in oxygen at constant pressure, 476.6kJ of heat is liberated. What is the percentage by mass of CH4 in the mixture? The standard enthalpies of combustion for CH4 and C2H6 are -890.3kJ/mol and

    asked by Anonymous
  12. Chemistry

    3.13g if CuNO3 is dissolved in water to make a 0.270 M solution. What is the volume of the solution?

    asked by Jason
  13. physics

    At what speed do a bicycle and its rider, with a combined mass of 100 kg, have the same momentum as a 1400 car traveling at 6.0 ?

    asked by Anonymous
  14. chemistry

    The solubility of lead (II) chloride (PbCl2) is 1.6 x 10^-2 M. What is the Ksp of PbCl2?

    asked by jack
  15. Chemistry

    At a certain temperature, the pH of a neutral solution is 7.77. What is the value of Kw at that temperature?

    asked by Pete
  16. physics

    A man is pulling on a rope with a force of 53 N directed at an angle of 70◦ to the horizontal. What is the x-component of this force? Answer in units of N.

    asked by jane
  17. Physics

    A uniform piece of wire, 30 cm long, is bent in the center to give it an L-shape. How far from the bend is the center of mass? I know that the center of mass is ([m1]x+[m2]x)/([m1]+m2]), but I don't quite understand how to apply it to this problem.

    asked by Avalon
  18. Chemistry 122

    What is the pH of a solution obtained by dissolving 0.325 g of acetylsalicylic acid, in 0.5 L of water? With a Ka of 3.3 x 10 ^-4.

    asked by Marlynda
  19. Physics

    An anvil hanging vertically from a long rope in a barn is pulled to the side and raised like a pendulum 1.6 m above its equilibrium position. It then swings to its lowermost point where the rope is cut by a sharp blade. The anvil then has a horizontal

    asked by Scooby
  20. Physics

    A snapshot graph of a travelling wave is shown. The wave is travelling to the right at 50.0 m/s. What is the amplitude if the maximum displacement is 38.0 cm and the total distance travelled by the wave is 16.0 m?

    asked by Bala
  21. chemistry

    Compute the freezing point of this Solution: 25.5g C7H11NO7S (4-nitro-2-toluenesulfonoic acid dihydrate) in 1.00*10^2g H2O (nonionizing solute) The freezing point of H2O is lowered 1.86 Celsius per mole of solute. The boiling point of H2O is raised 0.512

    asked by Jose Reyes
  22. chemistry

    What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt by a current of 24 amps? All i need is the moles of Aluminum per moles of electons. thanks

    asked by moe
  23. Chemistry

    The flask shown contains 10.0 mL of HCl and a few drops of phenolphthaein indicator. The buret contains 0.270 M NaOH. What volume of NaOH is needed to reach the end point of the titration? What was the initial concentration of HCl?

    asked by Jason
  24. Microeconomics

    Pharmaceutical drugs have an inelastic demand, and computers have an elastic demand. Suppose that technological advance doubles the supply of both products (that is, the quantity supplied at each price is twice what it was).

    asked by Rob
  25. Physics

    1)A car misses a turn and sinks into a shallow lake to a depth of 11.4 m. If the area of the car door is 0.56 m2, what is the force exerted on the outside of the door by the water? Note: 1 atm = 101 kPa.

    asked by Jamine
  26. physics

    A pendulum is 1.0 m long and is drawn aside 30.0* and let go. Find the velocity at the lowest point.

    asked by Aurora
  27. Chemistry

    Compute the boiling point of this solution: 1.00*10^2g C10H8O6S2 (1,5-naphthalenedisulfonic acid) in 1.00*10^2g H2O (nonionizing solute) The freezing point of H2O is Lowered 1.86 Celsius per mole of solute. The boiling point of H2O is Raised 0.512 Celsius

    asked by Jose Reyes
  28. chemistry

    How many grams of NH3 form when 27.5L of H2 (measured at STP)react with N2 to form NH3 according to: N2(g) + 3H2 (g) = 2NH3 (g)

    asked by Susan
  29. chemistry

    Compute the boiling point of this Solution: 25.5g C7H11NO7S (4-nitro-2-toluenesulfonoic acid dihydrate) in 1.00*10^2g H2O (nonionizing solute) The freezing point of H2O is lowered 1.86 Celsius per mole of solute. The boiling pint os H2O is raised 0.512

    asked by Jose Reyes
  30. CS

    build a program that produce a bar chart showing the population growth of prairieville, a small town in the midwest, at 20 year intervals during the past 100 years. the program should read in the population figures (rounded to the nearest 1000 people) for

    asked by Ashley Sumers
  31. physical science

    a 2.0 kg rock sits on the edge of a cliff 12m above the beach. The rock falls off the cliff. How much kinetic energy will it have just before it hits the beach?

    asked by Brad
  32. Physics

    For a certain transverse wave, the distance between two successive crests is 1.89 m, and 5 crests pass a given point along the direction of travel every 12.84 s. Calculate the wave speed.

    asked by Pete
  33. Chem 2

    Metallic Magnesium can be made from electrolysis of molten MgCl2. What mass of Mg is formed by passing a current of 4.55A through a molten MgCl2 for 3.50 days? Please Help!!

    asked by Missy
  34. Physics

    A snapshot graph of a travelling wave is shown. The wave is travelling to the right at 50.0 m/s. What is the amplitude if the maximum displacement is 38.0 cm and the total distance travelled by the wave is 16.0 m?

    asked by Bala
  35. College Chemistry

    A hydrogen-like ion is an ion containing only one electron. The energy of the electron in a hydrogen-like ion is given by: En=-(2.18x10^(-18)J)Z^2(1/(n^2)) where n is the principal quantum number and Z is the atomic number of the element. Calculate the

    asked by Anonymous
  36. Organic Chemistry

    One synthetic preparation of aniline involves reducing nitrobenzene with iron and HCL, and then steam distilling the resultant aniline at 99C. How much aniline codistills with each gram of water during steam distillation? I do not know how to get the

    asked by Adria
  37. Math

    In traveling across flat land, you notice a mountain in front of you. Its angle of elevation to the peak is 3.5 degrees. After you drive 13 miles closer to the mountain, the angle of elevation is 9 degrees. Approximate the height of the mountain.

    asked by Ashley
  38. physics

    Joe has a mass of 50 kg and Sally has a mass of 30 kg. They sit in class with a separation of 0.5 meters. Find the gravitational attraction between Joe and Sally.

    asked by Dominique
  39. Chemistry

    Calculate the molecular mass of the nonionic solutes. 8.02 grams of solute in 861 grams of water lower the freezing point to -0.430 celsius. the freezing point of H2O is lowered 1.86 celsius per mole of solute. the boiling point of H2O is raised 0.512

    asked by Jose Reyes
  40. Chemistry

    If 75 g of ice at 0.0 C were added to 1.5 L of water at 75 C, what would be the final temperature of the mixture?

    asked by Vanessa
  41. Math

    A goat is tethered to a stake in the ground with a 5 m rope. The goat can graze to the full length of the rope a fulll 360 around the stake. How much area does the goat have in which to graze? What would be the figure?

    asked by Ashley
  42. Physics

    I understand the basics of the center of mass, but I'm having a hard time with this wire one: "A uniform piece of wire, 20 cm long, is bent in the center to give it an L-shape. How far from the bend is the center of mass?" If you could help that'd be

    asked by Trisha
  43. physics

    a 1 kg dart moving horizntally at 10 m/s sticks to a wood block of mass 9 kg which slides across a friction free level surface. what is the speed of the block and dart after collision?

    asked by lisa
  44. english

    Please check my paragraph and tell me if I need to add more. I am supposed to write a paragraph which sustains iron tone. Thannks! Being organized shows a lack of creativity. It spumes boring, takes time and doesn’t come naturally for others.

    asked by Jackie
  45. Physics

    As the initially empty urinary bladder fills with urine and expands, its internal pressure increases by 3600 Pa, which triggers the micturition reflex (the feeling of the need to urinate). The horizontal square section of the bladder wall with an edge

    asked by Mike
  46. math

    jim, standing at one focus of a whispering gallery, is 6 feet from the nearest wall. his friend is standing at the other focus, 100 feet away. what is the length of this whispering gallery? how high is its elliptical ceiling at the center?

    asked by anonymous
  47. physics

    A 0.50 kg ball that is tied to the end of a 1.1 m light cord is revolved in a horizontal plane with the cord making a 30° angle, with the vertical (a) Determine the ball's speed. (b) If, instead, the ball is revolved so that its speed is 4.0 m/s, what

    asked by tj
  48. Algebra

    1. Why does the inequality sign change when both sides of the inequality are multiplied or divided by a negative number? Does this happen with equations? Why or why not? 2. Write an inequality for your classmates to solve. In your inequality, use both the

    asked by TRACY
  49. Algebra

    1. Why does the inequality sign change when both sides of the inequality are multiplied or divided by a negative number? Does this happen with equations? Why or why not? 2. Write an inequality for your classmates to solve. In your inequality, use both the

    asked by TRACY
  50. algebra

    Find the radius of a circle with an area of pi(16x^2+24x+9)

    asked by Kristina
  51. re:english

    Certain experiences can mark the beginings of maturity: 1. getting your first job a) b) c) 2. graduating from high school a) Making decisions b) c) 3. getting your driver's license a) Be aware of drivers while on the road b) Say no to a drunk driver for a

    asked by NeedHelp?
  52. microeconomic

    larry, curly, and moe run the saloon in town. larry wants to sell as many drinks as possible without losing money. curly wants the saloon to bring in as much revenue as possible. moe wants to make the largest possible profits. using a single diagram of the

    asked by lisey
  53. Microeconomics (full version)

    Pharmaceutical drugs have an inelastic demand, and computers have an elastic demand. Suppose that technological advance doubles the supply of both products (that is, the quantity supplied at each price is twice what it was). a. What happens to the

    asked by Rob
  54. Physics

    A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, respectively, 14.8 kg and 1.89 × 10-3 m3. The density of gold is 19 300 kg/m3, and the density of quartz is 2660 kg/m3. Find the mass of

    asked by Mike
  55. spanish

    5. Esas camisetas, ¿son de ustedes? Your response: Sí, son suyos Points earned: 0 out of 1 6. Esos sombreros de playa, ¿son de ustedes? Your response: Sí, son suyas Points earned: 0 out of 1 can any one help me figure those out?? i tried suyos and

    asked by AYUDA ME PORFAVOR!! :)
  56. Physics

    A jet airplane has an intensity of 109.7 W/ m2 when heard at a distance of 26.8 m. What is the maximum sound intensity heard by a person on the ground when the airplane is 8500 m overhead?

    asked by Jill
  57. Chemistry - Help please!

    A hydrogen-like ion is an ion containing only one electron. The energy of the electron in a hydrogen-like ion is given by: En=-(2.18x10^(-18)J)Z^2(1/(n^2)) where n is the principal quantum number and Z is the atomic number of the element. Calculate the

    asked by Anonymous
  58. physics

    In a device known as an Atwood machine, two masses m1=10kg and m2=20kg are connected by rope over a frictionless pulley. What is the acceleration of each mass if the rope is massless?

    asked by Mike
  59. Physics

    Hello I have an assignment to do about the force table. I'm not sure about my answers, hope someone could check it for me if I answered correctly. 1.What kind of forces do you use on the force table? Explain about the used forces. Resultant force,

    asked by Aransaja
  60. Chemistry 122

    A solution is prepared to be 0.10 M acetic acid, HC2H3O2, and 0.20 M sodium acetate, NaC2H3O2. What is the pH of this buffer? Ka for acetic acid is 1.7 x 10^-5. What is the pH after 9.5 mL of 0.10 M hydrochloric acid is added?

    asked by Marlynda
  61. Algebra

    Determine if the equation y = 2^x represents exponential growth or decay I thought at first it was growth but now I think it might be decay because there is no "b" in a parentheses so do I assume b is less than 1 so it's decay? Please help

    asked by Jason
  62. math

    If f(x)=sinxcosx, what are the critical points? on the interval (o, 2pi)

    asked by thomas richards
  63. math

    Robert Mason's account of $98.50 has been delinquent for three months. According to the office procedures manual, after 90 days a 2% service charge, compounded monthly, is added to future bills. What will be the amount owed after nine months?

    asked by lisa
  64. Word Problem - Algebra

    A recipe for spagetti sauce requires four 16-ounce bottles of ketchup to make 2 gallons of sauce. How many bottles of ketchup are needed to make 8 gallons of spagetti sauce?

    asked by Anonymous
  65. college algebra

    Using Systems of Equations. Please help!!! I'm not sure what steps to do, to work this problem. #7) Five hundred tickets were sold for a school play, which generated $3560 in revenue. The prices of the tickets were $5 for children, $7 for students, and $10

    asked by Lee
  66. physics

    If you tried to smuggle gold bricks by filling your backpack, whose dimensions are 66 cm 18 cm 15 cm, what would its mass be

    asked by Anonymous
  67. Microeconomics

    Pharmaceutical drugs have an inelastic demand, and computers have an elastic demand. Suppose that technological advance doubles the supply of both products (that is, the quantity supplied at each price is twice what it was).

    asked by Rob
  68. chem

    Calculate delta G rxn for a redox reaction with n = 2 that has an equilibrium constant of K = 4.4×10−2.

    asked by moe
  69. ela

    if you unscramblethe letters SATLEIVER what word do u get and it has to do with thanksgiving

    asked by BRITTANY
  70. MATH

    In traveling across flat land, you notice a mountain in front of you. Its angle of elevation to the peak is 3.5 degrees. After you drive 13 miles closer to the mountain, the angle of elevation is 9 degrees. Approximate the height of the mountain.

    asked by Kourt
  71. Math

    The minute hand on a watch is 8mm long and the hour hand is 4mm long. How fast is the distance between the tips of the hands changing at one o'clock?

    asked by Anonymous
  72. Statistics

    A confidence interval was used to estimate the proportion of statistics students that are females. A random sample of 72 statistics students generated the following 90% confidence Interval: (.43, .63). based on the interval above, is the population

    asked by Anonymous
  73. psycology

    700- to 1,050-word paper in which you examine the discipline of environmental psychology. As a part of your examination be sure to address the following items: o Define the discipline of environmental psychology. o Compare and contrast at least two major

    asked by Anonymous
  74. Physics

    A centrifuge rotor rotating at 10700 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 2.48 m * N. 1. If the mass of the rotor is 5.61 kg and it can be approximated as a solid cylinder of radius 0.0820 m, through how

    asked by Nick
  75. chemistry

    consider the reaction: CO (aq) + Cl2 (aq) --> COCL2 (aq). Calculate Delta G at non standard conditions for the reaction at 298.15k, if the concentration of COCl2 is reduced to 0.01832M, while the concentrations of CO and cl2 remain at 1M. Delta G rxn =

    asked by Tara
  76. letter to the supermarket

    Write a letter to the supermarket manager explaining what has happened. Tell the manager how you feel about the error and ask him to some this about it.

    asked by sara
  77. Math

    In traveling across flat land, you notice a mountain in front of you. Its angle of elevation to the peak is 3.5 degrees. After you drive 13 miles closer to the mountain, the angle of elevation is 9 degrees. Approximate the height of the mountain.

    asked by Ashley
  78. physics

    Sprinting near the end of a race, a runner with a mass of 70 kg accelerates from a speed of 6 m/s to a speed of 9 m/s in 2 s. (a) What is the runner's average acceleration during this time? (b) To gain speed the runner produces a backward force on the

    asked by confused
  79. Physics

    A bicycle with tires .064 m in diameter travels 8.1 km. 1. How many revolutions do the wheels make?

    asked by Nick
  80. Physics

    A hammer taps on the end of a 4.20 m long metal bar at room temperature. A microphone at the other end of the bar picks up two pulses of sound, one that travels through the metal and one that travels through the air. The pulses are separated in time by

    asked by Gavin
  81. ethics

    Does your organization address ethical issues in a formal and systematic way? If so, is it a cookie-cutter, one-size-fits-all approach or has the organization customized an ethical culture to match its unique needs? Please provide examples. i don't have a

    asked by bob
  82. Chemistry

    Calculate the osmotic pressure of this solution. 18..6 grams of solute with molecular mass of 8940 grams are dissolved in enough water to make 1.00 dm3 of solution at 25 celsius. What is the osmotic pressure of the solution?

    asked by Jose Reyes
  83. Trigonometry

    You observe a plane approaching overhead and assume that its speed is 700 miles per hour. The angle of elevation of the plane is 16° at one time and 58° one minute later. Approximate the altitude of the plane

    asked by Dave
  84. algebra

    a salesperson who must decide between two monthly income options: Option A: Salary of $1642 per month, plus 8% of monthly sales or Option B: Salary of $1900 per month, plus 6.5% of monthly sales For what amount of monthly sales is Option A the better

    asked by suzie
  85. Physics

    A jet airplane has an intensity of 92.4 W/ m2 when heard at a distance of 21.2 m. What is the maximum sound intensity heard by a person on the ground when the airplane is 10700 m overhead?

    asked by Bella
  86. Physics

    A wave has angular frequency 34.3 rad/s and wavelength 2.37 m. What is its wave number?

    asked by Bella
  87. Algebra

    Suppose that a polynomial function of degree 5 with rational coefficients has 0 (with multiplicity 2), 6, and –2 + 3i as zeros. Find the remaining zero. A. –6 B. –2 – 3i C. 0 D. 2 + 3i

    asked by Algebra Q
  88. Chemistry

    You have 150 ml of a solution of benzoic acid in water estimated to contain about 5 g of acid. The distribution coefficient of benzoic acid in benzene and water is approx 10. Calculate the amount of acid that would be left in the water solution after three

    asked by Nat
  89. Math

    In traveling across flat land, you notice a mountain in front of you. Its angle of elevation to the peak is 3.5 degrees. After you drive 13 miles closer to the mountain, the angle of elevation is 9 degrees. Approximate the height of the mountain.

    asked by Ashley
  90. microeconomics

    . For each event, illustrate the impact on the relevant market and determine what will happen to the equilibrium price and quantity in that market. (40 points – 10 points per line item) Event Market for: Show which curve shifts Equilibrium price rise or

    asked by tony swift
  91. Mathematics

    the probability of the home team's winning a basketball game is 80% describe a simulation of the probability the home team will win three homes games in a row

    asked by Alex
  92. Chemistry

    By titration it is found that 68.9 mL of 0.122 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCl solution.

    asked by Jason
  93. chemistry

    a sample of indium chloride is known to be contaminated with sodium chloride. The contaminated sample weighs 2.87 g. When the contaminated sample is treated with excess AgNO3(aq), 5.79 grams of AgCl(s) are obtained. What is the percentage by mass of InCl3

    asked by Anonymous
  94. chemistry

    Calculate the Delta G(not) for the reaction: C(s) + CO2 (g) --> 2 CO Delta Gf : CO2 = -394.4 kj/mol Delta Gf : CO = -137.2 kj/mol

    asked by Tara
  95. chemistry

    For a certain reaction, Delta H(not) = -76.8 kj and delta S(not) = -217 j/k. If n =3, calculate E for the reaction at 25degrees celcius.

    asked by Tara
  96. 6th grade

    A Number rounded to the nearest tenth is 6.1. The same number rounded to the nearest hundredth is 6.08 and rounded to the nearest thousandth is 6.083. What is the original number?

    asked by Liliana
  97. Medical Assisting

    Steri-strips cost $4.95 per box, there are 100 per box. If an orthopedic surgical group uses 200 Steri-strips a month, how much would be saved in a year by making a single purchase for a year's supply rather that 12 monthly purchases.If large lots of 1,000

    asked by Lisa
  98. math

    what are thefactors of 80(5th grade math)?

    asked by helen
  99. College Algebra

    Only 34% of the carbon-14 in a wooden bowl remains. How old is the bowl? (Carbon-14 has a half-life of 5,700 years.)

    asked by Lexi
  100. Physics

    If the flagpole has a mass of 21 kg and length 10 m and the angle the cable makes with the pole is ϕ = 20°, what are the magnitude and direction of the force exerted by the hinge on the flagpole? Assume the mass of the pole is distributed uniformly.

    asked by J Velji
  101. math

    John forgot to pay his $364 income tax on time. The IRS charge a penalty of 12% for the 55 days the money was late. Find te penalty that John paid

    asked by Anonymous
  102. calculus

    find the positive roots of the equation 2x^3-5x^2+6=0 and evaluate the function y=500x^6 at each root. round you answers to the nearest integer, but only in the final step.

    asked by maritza
  103. English

    Certain experiences can mark the beginings of maturity: "getting your first job graduating from high school getting your driver's license" i need help getting some supporting details for the 3 ideas above. i just need some suggestions. please help and

    asked by NeedHelp?
  104. social studies

    what do the egyptians stuff in the eye sockets of mummies?

    asked by Andrea
  105. anayltical chemistry

    I have tried and tried to use the henderson-hasselbalch equation for this problem, but i do not understand how to plug in the data: how much ammonium sulfate should be added to 500mL of .3M ammonia to produce a buffer with a pH of 9.?

    asked by joey
  106. Physics

    Earthquakes are essentially sound waves travelling through the earth. They are called seismic waves. Because the earth is solid, it can support both longitudinal and transverse sismic waves, which travel at different speeds. The speed of longitudinal

    asked by Stella
  107. Business Communications

    Which of the following would be an example of an emotional appeal that is part of a persuasive message? (Points: 5) "All of the ingredients we use are home-grown in the United States." "We can save 20% in labor costs if we relocate our plant to the

    asked by lisa
  108. chem

    Aluminum hydroxide and sulfuric acid neutralize to make water and aluminum sulfate. the first step i have done: Al(OH)3 + H2SO4 -> H2O + Al2(SO4)3 i find this one confusing XD

    asked by hannah
  109. algebra

    the cost of living last year went up 3% fortunately alice swanson got a 3% rais in her salery from last year. This year she is earning $22,660 how much did she make last year

    asked by nora
  110. physics

    1.A firetruck is traveling at a velocity of +20 m/s in the x direction. As the truck passes x=63m it shoots a tennis ball backwards with a speed of 20 m/s relative to the truck at an angle of 39° from a height of 1.4 m. Neglect air resistance. At what x

    asked by sandhu
  111. Math

    Can 252/1663 be simplified? If it can be simplified, what is the new simplified fraction?

    asked by Maddy
  112. i would like to apoligize

    im sorry my five year old little brother posted those questions while i was studying for my geography test

    asked by stan&cartmen
  113. math

    The following graph shows how a 4-color web printing press depreciates from the year 2006 to the year 2010. It was purchased new in the year 2006; therefore x = 0 represents the year 2006. X – axis (horizontal) = years starting from 0 = 2006 and

    asked by Anonymous
  114. English

    can someone please proofready my essay and fix any grammar errors I make have Thanks. Frederick Douglass had rough transition from freedom to slavery. His journey changed from oppression to freedom. He did not know what God had planned for his life, but he

    asked by Keisha
  115. Chemistry 122

    A solution of nicotinic acid, HC6H4NO2, of concentration 0.012 M has a pH of 3.39 at 25 degrees Celsius. Calculate Ka for this acid.

    asked by Marlynda
  116. Geometry

    A regular polygon has an exterior angel measure of (x+3) Degrees and an interior angle measure of (13x-33) degrees Find the measure of each angle How mant sides does this polygon have?

    asked by Monica
  117. physics

    1. How much acceleration does a 747 jumbo jet of mass 31600 kg experience in takeoff when the thrust for each of four engines is 30000 N? 2. Two boxes are seen to accelerate at the same rate when a force F is applied to the first and 5F is applied to

    asked by confused
  118. Chemistry

    Hydrogen peroxide can be prepared by the reaction of barium peroxide with sulfuric acid according to BaO2(s)+ H2SO4(aq)---> BaSO4(s)+ H2O2(aq) How many milliliters of 3.00 M H2SO4(aq) are needed to react completly with 85.1g of BaO2(s)?

    asked by Jason
  119. Math

    Prove :cosx-cosy= -2sin(x+y/2)sin(x-y/2) Prove: 2cot-2tanx= 4-2sec^2x / tanx

    asked by Sarah
  120. ss

    QuadPlex Cinema is the only movie theater in Idaho Falls. The nearest rival movie theater, the Cedar Bluff Twin, is 35 miles away in Pocatello. Thus QuadPlex Cinema possesses a degree of market power. Despite having market power, QuadPlex Cinema is

    asked by ss
  121. Business

    Consider the trash bag problem. Suppose that an independent laboratory has tested trash bags and has found that no 30-gallon bags that are currently on the market have a mean breaking strength of 50 pounds or more. On the basis of these results, the

    asked by Steve
  122. Physics

    A 50-kg block is at rest on a 15 degree slope. A force of 250 N is acting on the block up the slope parallel to it. If the block does not slide up the slope, what is the minimum value of the coefficient of static friction between the block and the slope?

    asked by Brooke
  123. Chemistry

    What is the H+ concentration for an aqueous solution with pOH = 4.13 at 25 ?

    asked by Pete
  124. Math

    6-6*6+6/6=1 where will the parentheses go in order for this to become true?

    asked by Nicole
  125. chemistry

    assuming the following reaction proceeds in the forward direction, what is oxidized and what is reduced? Cu2+ (aq) + Ca(s) --> Cu (s) + Ca2+ (aq)

    asked by Tara
  126. Physics

    Between each pair of vertebrae in the spinal column is a cylindrical disc of cartilage. Typically, this disc has a radius of about 2.6 x 10-2 m and a thickness of about 1.4 x 10-3 m. The shear modulus of cartilage is 1.2 x 107 N/m2. Suppose a shearing

    asked by Mike
  127. summerville high

    how many ways can a jury of six men and six women be selected from twelve men and ten women?

    asked by sam
  128. MATH

    3 OUT OF EVERY 4 STUDENT HAVE A COMPUTER AT HOME IF THERE ARE80 STUDENTS HOW MANY HAVE COMPUTERS AT HOME

    asked by TIFFANY
  129. Math

    In a geometric series, t1=12 and S3=372. What is the greatest possible value for t5? Justify your answer.

    asked by Emily
  130. algebra

    Consider the polynomial f(x) = 3x3 – 2x2 – 7x – 2. (a) By using the Rational Zero Theorem, list all possible rational zeros of the given polynomial. (b) Find all of the zeros of the given polynomial. Be sure to show work, explaining how you have

    asked by Math Loser :(
  131. Thermodynamics

    Oxygen reacts with the dipeptide glycylglycine [C4H8N2O3(s)] to form urea [CH4N2O], carbon dioxide and water: 3O2(g) + C4H8N2O3 (s) -> CH4N2O (s) + 3CO2(g) + 2H2O(l) At T=298.15 K and 1.00atm, solid glycylglycine has the following thermodynamic properties:

    asked by Jill
  132. vocabulary skills

    the greek combining form -pathy means: 1.abnormal discharge. 2.tumor arising in or composed of. 3.disease of. 4.treatment of.

    asked by carl
  133. Math

    My teacher gave us a puzzle. I have worked on it for 2 hours with both my parents and they can not figure it out. 0 o 0 o 0 o 0 o 0 In the above there are 5 squares. Top left, top right, bottom left and bottom right, and the last one formed by the o's

    asked by Tim
  134. Physics

    An elevator operates on a very slow hydraulic jack. Oil is pumped into a cylinder that contains the piston. The piston lifts the elevator as the internal cylinder pressure (P2) rises in comparison to the outside pressure (P1=101,325 Pa or about 14.7 psi).

    asked by Ansermi
  135. Chemistry

    You have 150 ml of a solution of benzoic acid in water estimated to contain about 5 g of acid. The distribution coefficient of benzoic acid in benzene and water is approx 10. Calculate the amount of acid that would be left in the water solution after three

    asked by Nat
  136. art history

    How might the Romans have sought to create believable images in their sculptural works, and how do the Roman works compare with the ones that we ha already studied?

    asked by Anonymous
  137. English

    Can you please check this paragraph on Frankenstein and the tradition of the Gothic novel. Thank you very much. 1)Gothic novels reached their popularity at the end of 18th century. The adjective “Gothic” was first used in architecture and then applied

    asked by Franco
  138. maths

    find the gradient of the curve y=2x^3-5x^2-x+1 at the pt (2,-5). find the x-coordinate of another pt on the curve where the tangent at that pt is parallel to the tangent at the pt (2,-5)

    asked by yani
  139. physics

    At what temperature do the molecules of nitrogen gas have an rms speed of 34 m/s? 34 m/s is a typical highway speed for a car.

    asked by lisa
  140. Business Communications

    What is the BEST reason to omit the reason for the refusal in a negative message? (Points: 5) The reader may not think of the reason. The reason reflects poorly on the company. The reason benefits the reader, but not the writer. The reason is watertight.

    asked by lisa
  141. chemistry

    How many grams of solute are present in 205 mL of .340 M KBr?

    asked by Jason
  142. Math

    Which statement is true about all prisms? A. Prisms have a pair of opposite faces B. The faces of a prism are congruent C. Prims have the same number of verticrs as edges D. The base of a prism is larger then the other faces.

    asked by Bill
  143. Physics

    A wave is travelling to the right at 50.0 m/s. What is the amplitude if the maximum displacement is 38.0 cm and the total distance travelled by the wave is 16.0 m?

    asked by Bala
  144. Algebra

    There are two similar triangles XYZ, and ABC. If x = 8, c = 5, and y = b, find z and a. How am I suppose to solve this problem if y = b? Do I find what b is first? Or will the answer be with a variable?

    asked by Milly
  145. Chemistry

    In an experiment, 3.545 grams of an unknown nonelectrolyte is dissolved in 15.0 grams of water. The extrapolated freezing point is -.56 degrees C. What is the molecular weight of the unknown material?

    asked by Cerra
  146. Physics

    Suppose with 200 N of force applied horizontally to your 1500 N refrigerator that is slides across your kitchen floor at a constant velocity. What are thre friction forces on the refrigerator?

    asked by Mike
  147. Shape and Space

    The circumference of a mysterious crop circle measure 60 meters. What is the approximate radius,rounded to the nearest meter?

    asked by lululemon
  148. Chemistry

    a certain brand of laundry aid called "Oxydoodle" is 12.5% (w/w) sodium percarbonate and 87.5% (w/w) sodium carbonate. Calculate the % (w/w) h2o2 in Oxydoodle

    asked by Shannon
  149. Physics

    A die is designed to punch holes of radii 2.17 x 10-2 m in a metal sheet that is 5.53 x 10-3 m thick. To punch through the sheet, the die must exert a shearing stress of 3.5 x 108 Pa. What force must be applied to the die? (Hint: Consider carefully which

    asked by Mike
  150. physics

    a football is kicked 40 meters. if the ball is in the air for four seconds what is the intial speed it was kicked

    asked by lisa
  151. Physics

    what is the variation of pressure in the sound wave if the sound intensity is 3.85x10^-8 W/m^2 the speed of sound is 343 m/s and the density of air is 1.2 kg/m3?

    asked by Jill
  152. chem

    Balance the skeletal equation for the synthesis of urea. (Enter 0 for any empty boxes. Use the lowest possible coefficients.) _NH3 + _CO2 ¨ _CO(NH2)2 + _H2O in the _ goes a number

    asked by hannah
  153. Chemistry

    Methane is formed in landfills by the action of certain bacteria on buried organic matter. If a sample of methane collected from a landfill has a volume of 500. mL at 744. torr and 22. °C, how many grams of methane are in the sample?

    asked by Marisa
  154. Physics

    A microphone has an area of 6.7 cm2. It receives during a 4.62 s time period a sound energy of 2.5x10-11 J. What is the intensity of the sound?

    asked by Pete
  155. English

    1. I am going to try an English club. (What is the meaning of 'try' here? What other expressions can we use? Would you rephrase this sentence?)

    asked by rfvv
  156. Science

    I have to write a project proposal about the global climate crisis so I can do a report and powerpoint. I need suggestions on what to write about by answering the following questions.... How do I affect the water and carbon cycle and what can I do to

    asked by Nick
  157. Physics

    A jet airplane has an intensity of 92.4 W/ m2 when heard at a distance of 21.2 m. What is the maximum sound intensity heard by a person on the ground when the airplane is 10700 m overhead?

    asked by Bella
  158. Physics

    1) A microphone has an area of 6.7 cm2. It receives during a 4.62 s time period a sound energy of 2.5x10-11 J. What is the intensity of the sound? 2) Using the intensity in the previous question, what is the variation of pressure in the sound wave if the

    asked by Bala
  159. College Physics

    Which one of the following statements about a thermodynamic engine is not true, i.e., which one of the statements is false? 1)The internal energy is always the same at the beginning and at the end of one cycle. 2)The absorbed and the exhausted heat have

    asked by Tracy
  160. algebra

    Use synthetic division to divide the polynomial 2x3 – 45x + 28 by x + 5, and write the quotient polynomial and the remainder. [Be careful – notice that there is no x2 term.]. Show work.

    asked by Math Loser :(
  161. math

    If the total number of coins collected is $6.70 and the total number of nickels is .55, What is the fraction of nickels to the total number of coins?

    asked by Kim
  162. Chem 30

    Why can't the Ka for HCl be obtained from a titration curve like that of acetic acid?

    asked by Alix
  163. 6th garde Math :)

    what is the greatest common factor (GCF) of 25 ; 50

    asked by karol <3
  164. Statistics

    Two ways in which practical statistics outweighs statistical significance?

    asked by Chrissy
  165. College Algebra

    find the average weight in pounds of a type of bird of your choice. Use the rational exponent equation L = 2.43 * W^0.3326 to estimate the wingspan L in feet of the bird that weighs W pounds (Rockswold, 2006). Include in your post the type of bird and the

    asked by Anonymous
  166. math

    Name all the arrays you can make with each set of tiles. 1. 8 tiles 2. 9 tiles 3.16 tiles

    asked by Anonymous
  167. math

    Consider a bowl containing 36 different slips of paper. Ten of the slips of paper contain one of the set of digits 0 through 9 and 26 slips contain one of the 26 letters of the alphabet. Determine the probability of drawing one slip, what is P (even number

    asked by m
  168. spanish

    Con quien acabas de hablar?

    asked by miranda
  169. college Algebra

    Please explain with complete step by step instructions. #8)One type of lawn fertilizer consists of a mixture of nitrogen, phosphorus and potassium. An 80lb sample contains 8 move lbs of nitrogen and phosphorus than potassium. There is 16lb more potasssium

    asked by Lee
  170. Precalculus

    1. Prove csc(symbol for angle) tan(symbol for angle) = sec(symbol for angle) 2. Prove cosx+sinxtanx=secx

    asked by Anonymous
  171. ALGEBRA/ PLEASE HELP

    Am I correct? Find the slope and the y intercept of y = - 10/3x - 9/2. The slope is -10/3 because this is what is in front of x and the y - intercept is (0, -9/2)? The second question is I need to find the slope of a graph that was provided for me. The y

    asked by CANDY
  172. chemistry

    What is another way to write Fe or Ba electron configuration, charge,and number os unpaired e-?

    asked by kim
  173. chemistry

    what mass of phosphine oxide, is produced by the reaction of 15.0 g phosphine, 8.0 L oxygen at 25 degrees celcious and 755 mmHg

    asked by Anonymous
  174. Math

    Meka plans to bake a large circular cookies for her brothers. She wants to decorate the outer edge of the cookie small pieces of choclate. The radius of the cookies is 7 inches.What would be the closest to the curcumference of the cookie?

    asked by Bill
  175. Geometry

    Is it possible for a triangle to have sides with the following lengths: 5, 9, 15?

    asked by Molly
  176. Calculus

    Compute the derivatives of : f(x)= x^7 + 7^x+ 7^7

    asked by JJ
  177. chemristy

    A sample of gas occupies 18 L under a pressure of 1.3 atm. What would the resulting valume be if the pressure were increased to 3.9 atm if the temperature did not change?

    asked by kevin bolton
  178. Physics

    1) A microphone has an area of 6.7 cm2. It receives during a 4.62 s time period a sound energy of 2.5x10-11 J. What is the intensity of the sound? 2) Using the intensity in the previous question, what is the variation of pressure in the sound wave if the

    asked by Bala
  179. 4th grade math

    how do u make mm into cm

    asked by cyress
  180. 6th grade

    what value of p makes this equation true?44*73=44*(p+3)? a)41. b)47. c)70. d)73 if you got it right give your self a clap.

    asked by elaisa
  181. Math

    Kelly has a 2.89 GPA after 54 credits. She is taking 16 credits this quarter. What must her GPA be this quarter to raise her ovarall GPA to 3.0

    asked by Samantha
  182. chemistry

    1) why do copper 2 sulfate chrystals not conduct electricty? 2)why is copper 2 sulfate solution a good conductor of electricity? 3)why is water a poor conductor of electricity ,

    asked by olivia
  183. Physics

    A force of 50 N directed 30 degrees above the hoizontal is applied to a 10-kg block at rest on a rough horizontal surface. What is the coefficient of kinetic friction between the block and the horizontal surface if the acceleration of the block is 2.0

    asked by Heather
  184. physics

    An outfielder throws a baseball from the outfield to the third baseman. In flight, the ball reaches a height of 25 ft above the ground. The outfielder releases the ball from a height of 6 ft above the ground with a speed of 124 ft/sec. The ball is caught 6

    asked by sandhu
  185. Physics

    An elevator operates on a very slow hydraulic jack. Oil is pumped into a cylinder that contains the piston. The piston lifts the elevator as the internal cylinder pressure (P2) rises in comparison to the outside pressure (P1=101,325 Pa or about 14.7 psi).

    asked by Calvin
  186. PHYSICS PLEASE HELP!!!

    Please someone have mercy this is a test grade and I have no idea what to do ! A force of 200 N is being exerted on a blocki, which has a mass of 10 kg and is on 30 degrees inclined plane. The force is acting up the plane and parallel to it. The

    asked by Tyler
  187. ap chemistry

    A volume of 2.0 L of He at 46 degrees celsius and 1.2 atm of pressure was added to a vessel that contained 4.5 L of N2 at STP. What is the total pressure and partial pressure of each gas at STP after the He is added?

    asked by garm
  188. Algebra: Simple Interest

    Problem: Geoff has $5000 to invest. He wants to earn $568 in interest in one year. He will invest part of the money at 12% and the other part at 10%. How will he invest. +I already know how to do Simplest Interest, I just can't read the problem to find

    asked by Milly
  189. 9th grade

    Why isnt a ladder a good model for an atom?

    asked by Kayka
  190. vocabulary skills

    The Greek base ANGI- means?

    asked by theresa
  191. Chemistry

    What is the concentration of HCl when 25.0 mL of HCl completely reacts with 10.0 mL of 0.1M solution of NH4OH (subscript 4)? Solution steps would be helpful so I can solve other similar problems.

    asked by Cody
  192. Algebra

    For f (x) = x4 – 2x2 – 7, use the Intermediate Value Theorem to determine which interval Must contain a zero of f. A. Between 0 and 1 B. Between 1 and 2 C. Between 2 and 3 D. Between 3 and 4

    asked by Help please
  193. Physics

    a 36.1 N crate is resting on the floor. When you push horizontally on the crate with a force of 16.9 N, it accelerates at 0.15 m/s2. How large is the frictional force acting on the crate?

    asked by Maredith
  194. vocabulary skills

    which greek base means eye? 1.neur 2.myel 3.phren 4.ophthalm

    asked by carl
  195. 1st grade

    how i am going to fix this sentence. i go to scott elementary school

    asked by kate
  196. social studies

    What benefits do welfare state offer their citizen?

    asked by tony
  197. Math:Calculus

    Use the Fundamental Theorem of Calculus to find the derivative of g(x)=1/(1+t^5)dt in the interval 1 to x.

    asked by HELP!!!!
  198. social studies

    How do you think having ombudsmen would change the U.S. government

    asked by tony
  199. math

    Consider the experiment of selecting a card from an ordinary deck of 52 playing cards and determine the probability of a red card or a card showing a 5 is drawn. I figured the red cards would be 26/52 and the 5 would be 4/52. Would I add these two together

    asked by m
  200. health

    Bob was given and exercise prescription for 3-5 METS for his home exercise program. He is currently walking, and at the fitness center using a treadmill, walking 3.2 mph up a3% incline. Bob weighs 70kg. is Bob exercising in his prescribed zone?

    asked by kaden
  201. Math

    Bob was given and exercise prescription for 3-5 METS for his home exercise program. He is currently walking, and at the fitness center using a treadmill, walking 3.2 mph up a3% incline. Bob weighs 70kg. is Bob exercising in his prescribed zone? 1 MET = 3.5

    asked by kaden
  202. Precalculus

    1. What quadrant would the terminal side of the angle of t=4pie/3 be? 2. What quadrant would the terminal side of the angle of t=3pie/2

    asked by justin
  203. chemistry

    what is the chemical equation for HCL and NaOH?

    asked by Anonymous
  204. chemistry

    calculate the energy of a wave that has a frequency of 3.5*10^8 m/s

    asked by linda
  205. government

    all of the following are examples of thenonlegislative powers of Congress except

    asked by Anonymous
  206. English

    I forgot to include the followig sentences. I really hope you can have a look at them, too. 1) The crew is trapped for many days. Victor is confined to a desolate place when he is trying to carry out his experiment. Actually, he restricts (?) himself

    asked by Franco
  207. Physics

    1) A microphone has an area of 6.7 cm2. It receives during a 4.62 s time period a sound energy of 2.5x10-11 J. What is the intensity of the sound? 2) Using the intensity in the previous question, what is the variation of pressure in the sound wave if the

    asked by Bala
  208. finances

    Calculate the future value of the following: o $5,000 compounded annually at 6% for 5 years o $5,000 compounded semiannually at 6% for 5 years o $5,000 compounded quarterly at 6% for 5 years o $5,000 compounded annually at 6% for 6 year What conclusions

    asked by Rhalaj
  209. social studies

    How has the climate of the Scandinavian countries helped define their cultures?

    asked by tony
  210. Calculus 1

    Find dy/dx by implicit differentiation. X^2 + y^2 = tan(xy)

    asked by Amy
  211. Math

    Calculate the monthly payment loan amortization table. Loan $26,000 Down Payment $5,000 11% for 36 months

    asked by Math Question
  212. Math

    Meka plans to bake a large circular cookies for her brothers. She wants to decorate the outer edge of the cookie small pieces of choclate. The radius of the cookies is 7 inches.What would be the closest to the curcumference of the cookie?

    asked by Bill
  213. probability

    1. A large video rental chain recently decided to change its rental policy, allowing an unlimited return date instead of requiring that movies be returned the next day. The marketing team reasoned that this would greatly increase the popularity of their

    asked by lisa
  214. English

    I forgot to include the following sentences. Thank you very much for all. 1) He manages to set himself free throwing some of his persuers into the air (?). Finally, he jumps into a cart full of dead corpses headed out of town. 2)He jumps off and finds

    asked by Franco
  215. math

    2 cards are drawn without replacement from an ordinary deck of 52 playing cards. What is the probability that both are spades if the first card drawn was a spade? I think you subtract out the first spade making the probability 12/51 since you take off the

    asked by m
  216. Chemistry

    Calculate the number of moles of solute in 18.33 mL of 0.1115 M K2Cr2O7(aq)

    asked by Jason
  217. physics

    How much work must be done to stop a 1040 kg car traveling at 111 km/h?

    asked by rachel
  218. algebra2

    Using complete sentences, explain which method you would use to solve the following system of equations and why. In your answer, include the solution to one of the variables and how you found it using the method you chose. 2x + y + z = –7 x – 3y + 4z =

    asked by Rayniya
  219. geography

    is the mantle convection current is the process of plate movements? please help and thank you

    asked by needhelp
  220. math

    how to write two equivalent fractions with 3/4>5/18 4/9>1/6 4/17

    asked by ronnie
  221. PHYSICS~Acceleration

    which of the following are possible units for acceleration? ~ the dashed line represents an underline. A. cm/s ----------- s B. m * s ----------- s C. km/h/s D. min ----------- min/km Would A-C all be possible units for acceleration? I don't think D would

    asked by Anabelle
  222. physics (lVERY LONG)

    A force of 200 N is being exerted on a blocki, which has a mass of 10 kg and is on 30 degrees inclined plane. The force is acting up the plane and parallel to it. The coefficient of friction between the block and the plane is .3 and the plane is 12 m long.

    asked by rhet butler
  223. math

    Jane uses a 60 minute tape to record songs on, if each tape is 40 seconds long. How many songs can she tape on the 60 minute tape

    asked by carolyn
  224. math

    4x+7

    asked by TRACY
  225. Algebra

    There are two similar triangles XYZ, and ABC. If x = 12 and z = 3c, find a. How do I work with that problem when z = 3c?

    asked by Milly
  226. math

    If you buy a pamphlet for $20.00 or copy the pamphlet for $.10 per page, and the prices are the same, how many pages does the pamphlet have?

    asked by carolyn
  227. accounting

    Glenmore Corp. purchased a fax machine at the beginning of 2007. The fmx machine cost s1,000 and is expected to last live years Its salvage value is expedted to be $50. It Glenmmore uses straight-line depreciabon, what will the fax mactiines net book value

    asked by ana
  228. geology

    What is the minimum age of Earth. We are given a hint of: If the age of Earth were equal to one calendar year, the 1492 arrival of Christopher Columbus in America would have occurred at five seconds to midnight Dec. 31. That confuses me even more.

    asked by m
  229. Math -- for Sue

    Ok Sue my last problem for the night then I am done!! Yeah 2x + 3 > x + 5 2x-x+3-3

    asked by TRACY
  230. social studies

    a project about population

    asked by atiya
  231. Statistics

    Quality Progress, February 2005, reports on the results achieved by Bank of America in improving customer satisfaction and customer loyalty by listening to the “voice of the customer.” A key measure of customer satisfaction is the response on a scale

    asked by Steve
  232. maths

    how many tickets did i buy if i spent £30 formula is C=20+0.1t

    asked by aj
  233. lit

    which word is not derived from terms used in drama? 1.chorus 2.pants 3.scene 4.size

    asked by carl
  234. physics

    what force is acting on a circular platform rotating opposite of a person standing on the edge?

    asked by ashley
  235. vocabulary skills

    which word did not originate from those used in various occupations? 1.seasons 2.person 3.tease 4.broker

    asked by theresa
  236. Math

    Three large barrels are transported on a railroad car by stacking the third one on top of the other two and using a tight metal band around all three to hold them together. If the outside diameter of each barrel is 3 feet, then what is the length of the

    asked by CC
  237. algebra

    To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. Write an equation using only one variable

    asked by Nikki
  238. Psy 265

    · Write a 700- to 1,050-word response, on the determining factors of gender identification and gender roles. Include the following in your response: · State the factors that determine gender identity. · Explain how a person’s masculine and feminine

    asked by Jackie
  239. PHYSICS~Bobpursely

    Bobpursely can I please receive help from you. My posts are down below.

    asked by Anabelle
  240. Chemistry

    For the voltaic cell Cr(s)/Cr3+(aq)//Ni+2 (aq)/Ni(s), list the reactions at the cathode, anode, and the overall net reaction.

    asked by Tara
  241. Physics

    A wave with frequency 12.2Hz and amplitude 47.7 mm moves in the positive x direction with a speed of 8.9 m/s. What is the waves wavelength?

    asked by Pete
  242. MATH

    IN A CLASS 3 OUT OF EVERY 7 STUDENT ARE MALES IF THERE ARE 27 MALES HOW MANY STUDENT ARE IN THE CLASS

    asked by TIFFANY
  243. biology

    What are some different types of mutant proteins?

    asked by Anton
  244. Physics

    Hey, have a question in Physics From a power magazine released 300,000 gallons of water pr.sekund into a pipeline leading to a turbine plant. Height difference between the magazine and the turbines are 300meter. The turbines provide 0.7 GW power. How large

    asked by Oddbjørn
  245. Economics

    what is meant by the term utility and how does it relate to purposeful behavior?

    asked by CJ
  246. Math

    If you invest 250.00 for 10 years at 6%,coumpounded monthly, what would the interest be. The amount I calculated for the investment is 40,969.83, but I am not sure of the interest.

    asked by Kathy
  247. California State Map

    How many national parks are in the state of California?

    asked by Wyatt
  248. Managerial Communications

    What are some manager audience characteristics that I should consider while presenting quarterly sales information?

    asked by Marie
  249. physics

    The force F = (3.2, -7.1) N acts on a mass of 1.15 kg. At time t = 0 s, the mass has a velocity v0 = (-0.46, 0.36) m/s. What is the initial kinetic energy (in J)? i know that k=.5mv^2 so the answer i got was (.12167,0.07452) but i'm not sure what to do

    asked by help
  250. chemistry

    1 liter of a 1 M lithium hydroxide solution is added to 1 liter of a 1 M barium chloride solution, and a precipitate forms. What ions are left in solution after the reaction is complete? What ions are left in solution after the reaction is complete?

    asked by Elise
  251. Statistics

    1. A large video rental chain recently decided to change its rental policy, allowing an unlimited return date instead of requiring that movies be returned the next day. The marketing team reasoned that this would greatly increase the popularity of their

    asked by lina
  252. maths

    i am divisible by 8 and9.i am a three digit multiple of 10. i am between 200 and 700.

    asked by hannah
  253. 6th grade

    What is 5/8 of 1/50?

    asked by Anonymous
  254. algebra

    Consider the polynomial P(x), shown in standard form and in factored form. (a) State the behavior at the ends (fill in blanks): At the left, as x „_ ¡V„V, P(x) „_ __ (choose ¡V„V or „V). At the right, as x „_ „V, P(x) „_ __ (choose

    asked by Algebra Q
  255. Algebra

    If 3 is a zero of the polynomial f(x), then which of the following is NOT necessarily true? A. (x – 3) is a factor of the polynomial f(x). B. 3 is a solution of the equation f(x) = 0. C. (3, 0) is an x-intercept for f. D. (0, 3) is a y-intercept for f.

    asked by Math is hard!
  256. MAth

    What is 1/80 estimated to the nearest hundred?

    asked by Anonymous
  257. Inequalities

    Express deliveries plan is 15+1.25m PDQ deliveries plan is 25+0.75m For what number of miles (m) is PDQ less expensive?

    asked by Lydie
  258. algebra

    don williams invested some money st 9% simple interest. At the end of the year, the total amount of his original principal and the interest was $6.540. How much did he originally invest

    asked by nora
  259. General Chemistry

    Calculate the E of the following cell if [CIO3] = 1.5M, [H]= 0.5M, [CI]=1.0M and [CU2]= O.25M: CI03 + 3CU + 6H = CI- +3Cu2+ +2h20

    asked by Ashley
  260. Statistics

    The X2 goodness of fit can be used for both qualitative and quantitative data Is this true or false?

    asked by Lisa
  261. statistics

    1. Test the Nation on CBC:“Test the Nation” was the biggest survey ever conducted to see just how smart Canadians are. In this live two-hour special, 1.5 million Canadians participated in a real-time interactive IQ test. Viewers took the test in the

    asked by dave
  262. Please Help

    The method used to calculate depreciation for federal income tax purposes is ?

    asked by Math Question
  263. physics

    An 3730 kg airplane has a center of mass located 32 m from the front of the plane. A 123 kg man sits 25 m from the front of the plane. Where should a 76 kg woman sit so that the center of mass of the loaded plane is the same as the empty airplane? (m from

    asked by sandhu
  264. chemistry class

    What is the pH of an aqueous solution at 25.0 °C that contains 3.98 × 10-9 M hydroxide ion? i posted this before and i tried solving it but i get it wrong 14 = ph + - log (3.98 × 10-9) 14- 8.4 = ph 5.6 = ph but the correct answer is 8.400 what did i do

    asked by jessie
  265. 6th grade

    I am an improper fraction that is more than two and one third and less thatn two and three fourths. The sum of my numerator and denominator is 29. What number am I?

    asked by jonothan
  266. allen school

    write 200 words identifying three challenges that might arise when writing a persuasive paper

    asked by esther
  267. Thank-you Ms. Sue

    But it did not give me the answer I was looking for. Would you have any more links I might try. I would appreciate it very much.

    asked by Math Question
  268. Physics

    1.) A lawnmower engine claims to provide 18 hp of power and 6.25 ft lb of torque. If this is true, what must be the rotational speed in RPM? 2.) The conversion of the shaft power of a wind turbine to electricity is the function of the generator. Assume it

    asked by Pleseansermi
  269. math

    fill in the correct symbol. < = > 6+7 __ 7+6

    asked by kate
  270. Math

    An object is heated to 90 degrees Celcius and is then allowed to cool in a room whose air temperature is 25 degrees celcius. If the temperature of the object is 75 degrees celcius after 10 minutes, when will its temperature be 50 degrees celcius?

    asked by Hannah
  271. biology

    at the end of meiosis 2 are the chromosomes replicated?

    asked by mariam
  272. algebra

    x:12 - x = 10:30 Solve for x.

    asked by Clammyson
  273. Math

    How would I find the zeros of the function x^3 -7x +6 ? I know how to do with a x^2 term but, I'm confused as to how to do it when there isn't an x^2.

    asked by Emily
  274. vocab

    Most stories have good and bad characters. which word would most likely describe the bad characters in most books? a) malnourished b)malodorous c) malignant d) malevolent

    asked by Alana
  275. letter to the bank

    Write a letter to the bank explaining what have happened and say that you would live to do about it

    asked by sara
  276. Help

    What are some of the risk areas that can be identified through the auditing process.

    asked by Auditing
  277. math

    solve 2│2x-7│+11=25

    asked by Mimi
  278. geography

    Paraguay is to Bolivia as ? is to Honduras. My answer is Nicaragua. Is that correct? I say it is Nicaragua because Bolivia is southeast of Paraguay and Honduras is southeast of Nicaragua.

    asked by Reed
  279. math

    If you know that an individual (72kg) has a side job mowing lawns and they do it 10 hours a week, then how many kilo-calories are expended each week doing this activity? [(METSx3.5xbody-weight inkg)/200=kcal/min

    asked by kaden
  280. Physics

    What are the basic uses of a CRO (cathode ray oscilloscope) Thanks

    asked by Billie
  281. Marketing

    Several years ago, a brewing company led a charge of microbreweries in an attack on the established brewers' domestic beers. Explain and describe the following: What is micromarketing? How might it have been used by microbreweries? What communications

    asked by Mike Row
  282. US history

    When Kennedy was elected president, many were: A. pleased because of his clear experience. B. fearful because he had appointed such controversial people to the cabinet. C. pleased because of sound cabinet appointment and his ability to inspire. I think it

    asked by anthony
  283. international business

    what are the advantages and disadvantages of integration

    asked by pj
  284. M,ath

    How do we find the greatest common factor of a polynomial? Demonstrate the process with an example, showing your work. When finding the greatest common factor of a polynomial, can it ever be larger than the smallest coefficient? Can it ever be smaller than

    asked by Anonymous
  285. PreCal

    Let g(x)=2x+6 if k(g(x))=4x+12/3-the square root of 2x-5. Find the formula for k(x)

    asked by Vic
  286. Please Help! Calculus

    We have to find out which of these statements are true. I narrowed it down to 2 answers. a) if f"(0)=0, the the graph of f changes concavity at x=0 b) If the function f is continuous on the interval [a,b] and the integral from a to b of f(x)dx=0, then f

    asked by Leanna
  287. Social St.!!!ASAP!!!!

    What are the 3 worst laws that were passed by the parliament (13 colonies)?????

    asked by Sumaiya
  288. US History

    The fact that John !@#$%^&ennedy was Catholic: A. was not an issue that he felt he needed to discuss. B. was never considered an issue in the election of 1960. C. was dealt with effectively by Kennedy I think it may be C but not completely sure ?

    asked by anthony
  289. Physics

    If I'm travelling with a bag of objects on the seat next to me and I turn right, which direction does the bag fall and why? What does this have to do with friction, centripetal and inertia

    asked by Jake
  290. College Algebra

    For a test question, a mathematics teacher wants to find two constants a and b such that the test item "Simplify a(x + 2y) − b(2x − y)" will have an answer of -4x + 12y. What constants a and b should the teacher use?

    asked by Lexi
  291. Math

    How can the faces of two cubes be numbered so that when they are rolled, the resulting sum is a number 1 to 12 inclusive and each sum has the same probability?

    asked by Brian
  292. math11Plelase check

    Hi I need to write these systems of equalities in slope intercept form so I can graph them. 20x+4.5y

    asked by Sandi
  293. Math

    If there are 16 people at a party and one of the group decided to conduct a poll of who the president of the united states was, explain whether you would expect the answer to be accurate and why?

    asked by Amanda
  294. 11th grade

    accounts cash book find journal entries for. (1) discounted bill of rs .1000 at1% by bank (2) interest allowed by bank rs.5000

    asked by mrudula
  295. Chemsistry

    How many moles are there in 857 grams of sodium?

    asked by Anonymous
  296. ChemIstry

    How any grams are there in 3.69 moles of sliver?

    asked by Anonymous
  297. Math

    The width of a single cour is 3/4 of the width of the double court. Double court which is the base= 36 feet and the height= 78 feet What is the area of the singles court?

    asked by Bill
  298. math

    subtraction of fractions 3 2/5 - 1 3/5

    asked by Batul
  299. Chemistry

    How many moles are there in 569 grams of copper

    asked by Anonymous
  300. Chemistry

    How many moles are there in 52.3 grams of nickel

    asked by Anonymous
  301. History

    I would like to know if you could give me your opinion on why some people might find it wrong that those who celebrate the Day of the Day place wooden skulls on the altars that they create and wear skull masks to honor their loved ones. They used the

    asked by Sarah
  302. Chemistry

    How many moles are there in 965 grams of boron

    asked by Anonymous
  303. English

    Can you please check if the following sentences summarising part of the film Frankenstein are possible? 1) Though the town is affected by cholera Victor decides not to abandon his work. 2) His work comes even before his beloved Elizabeth, who tries to

    asked by Franco
  304. Language Arts

    What is the subject in the sentence: Third graders are very polite and they just finished learning all their manners.

    asked by Jo Jo
  305. math

    a pair of dice are rolled and the sum on their upturned faces is recorded. What is the probability that the sum showing is 8, given that one die is showing a 5? Taking into consideration the numbers 1-6 on the second die wouldn't the probability be 1/6?

    asked by m
  306. english

    Please correct my sentence english is not my native language and I don't feel comfortable to turn in. Also my Summary and Anecdote. Thank u very much! (Anecdote) She lives in land that almost has the same climate in the desert. Starvation is not something

    asked by Mariae
  307. math

    how do you convert fractions to decimals.

    asked by Karen
  308. PHYSICS~Acceleration

    Two students get in an elevator on the ground floor and ride the elevator up to the fifth floor? Describe what happens to their velocity and acceleration during the trip. Would their velocity be increasing? There would be upward acceleration at first and

    asked by Anabelle
  309. Allied Health

    A man sued his surgeon for malpractice. although the surgeon was found guilty, the man was awarded only $25 because he didn't suffer any actual damages. This case is an example of actual, punitive, nominal or compensatory damages. I chose "nominal"

    asked by Abel
  310. Algebra 2 with Trig

    what is the index of three with the square root of negative 432

    asked by Rekiesher
  311. math

    What is the probability of flipping a coin two times and getting no heads? Would that be 1/2x1/2=1 so the probability is 1%?

    asked by m
  312. PHYSICS~Acceleration

    What happens to the velocity of an object as it falls if the only force acting on the object is gravity? What happens to the acceleration of the object? Would the velocity be constant? Would the acceleration increase downward?

    asked by Anabelle
  313. math

    If you exchange 300 usd for euro's how many euros would you have?

    asked by carolyn
  314. math

    What is the cost of a bicycle in USD if the cost in Euro is 700?

    asked by carolyn
  315. Business Communications

    Which of the following is NOT a question you need to answer to choose a persuasive strategy? (Points: 5) What do you want readers to do? What points will the audience agree with? How strong a case can you make? What kind of persuasion does your

    asked by lisa
  316. Healthcare

    How might a novice confuse the following advance directives within the Patient-Self Determination Act when distinguishing information as administrative or clinical?

    asked by HCR 210
  317. math

    If P(A) = 2/3, P(B) = 1/6, and P(A and B) = 0, what can you say about P(A or B)? Not sure how to answer this one.

    asked by m
  318. Physics

    1.) A lawnmower engine claims to provide 18 hp of power and 6.25 ft lb of torque. If this is true, what must be the rotational speed in RPM? 2.) The conversion of the shaft power of a wind turbine to electricity is the function of the generator. Assume it

    asked by Carl
  319. english

    did dwight d eisenhower achieved the american dream?

    asked by sue
  320. Math

    What is 12/6 x 3-5? If following order of operations (PEMDAS) you would multiply 6 times 3 and which is 18 and then divide by 12 but this will not give you a whole number?

    asked by Hayden
  321. 12th Grade Government

    _____ believed that there should be no limits to the power of the government once the will of the people was determined.

    asked by Tiffany
  322. biology

    What are some different types of mutant proteins?

    asked by Anton
  323. biology

    What are some different types of mutant proteins?

    asked by Anton
  324. 12th Grade Government

    Why was it important to the Founding Fathers to justify their actions by evoking traditional English rights?

    asked by Tiffany
  325. chemistry

    whats a compound

    asked by desmond
  326. History

    Is there any website where I could find the picture of the Empresario Grants Coahuila Y Tejas Map?

    asked by Ashley