Questions Asked on
November 2, 2011

  1. physics

    A driver in a 2000 kg Porsche wishes to pass a slow moving school bus on a 4 lane road. What is the average power in watts required to accelerate the sports car from 30 m/s to 60 m/s in 9 seconds?

    asked by Anonymous
  2. chemistry

    Pentaborane-9(B5H9) IS a colorless highly reactive liquid that will burst into flames when exposed to oxygen.The reaction is ' 2B5H9(l)+ 12O2--> 5B2O2(s)+9H2O(l) Calculate the kilojoules of heat released per gram of the compound reacted with oxygen.The

    asked by asembi
  3. chemistry

    If im given mass percent and mass solvent how do I find mass solute and mass solution. example: Mass percent = 3.8% and Mass solvent 45.8 g. Find mass solute and mass solution

    asked by Monique
  4. Chemistry

    For the list of chemicals below, write complete, balanced equations for all possible reactions that would lead to an insoluble salt. KCl, BaCl2, AgNO3, Pb(No3)2, K2SO4, HNO3

    asked by Helen
  5. Calculus

    The curve y = x/(1 + x^2) is called a serpentine. Find an equation of the tangent line to this curve at the point(2, 0.40).(Round the slope and y-intercept to two decimal places.)

    asked by Andy
  6. Chem

    In a coffee cup calorimeter, 50.0 mL of 0.100 M AgNO3 and 50.0 mL of 0.100 M HCl are mixed to yield the following reaction: Ag+ (aq) + Cl- (aq) -----------------> AgCl (s) The two solutions were initially at 22.60 °C, and the final temperature is 23.40

    asked by Joe
  7. algebra

    Suppose you work in a clothing store. Each week you earn $250 plus a commission equal to 2.5% of your sales. This week your goal is to earn no less than $350. Write and solve an inequality to find the amount of sales you must have to reach your goal.

    asked by shan
  8. Physics

    In a slow-pitch softball game, a 0.200 kg softball crossed the plate at 10.00 m/s at an angle of 45.0° below the horizontal. The batter hits the ball toward center field, giving it a velocity of 44.0 m/s at 30.0° above the horizontal. If the force on the

    asked by Eddy
  9. Math

    An airline runs a commuter flight between Portland and Seattle, which are 145 miles apart. If the average air speed could be increased by 40 miles per hour, the travel time would be decreased by 12 minutes. What air speed is required to obtain this

    asked by Amy
  10. chemistry-wavelengths

    what is the wavelength in nm of radiation having a frequency of 2.45x10^9Hz

    asked by plssss!
  11. Chemistry

    1) What is the charge on the ion that Selenium forms in an ionic compound? I am not sure about this. 2) What noble gas is isoelectronic with this ion. I was thinking Krypton because it is a noble gas and it is the closest to Selenium but I am not sure. 3)

    asked by Hannah
  12. calc

    You have been hired as a marketing consultant to Johannesburg Burger Supply, Inc., and you wish to come up with a unit price for its hamburgers in order to maximize its weekly revenue. To make life as simple as possible, you assume that the demand equation

    asked by lc
  13. Science

    a bus trip covers 191 km and takes 4 hours and 15 miniutes. What is the average speed of the bus in kilometers per hour?

    asked by Mary
  14. GOVERNMENT USA HELP FAST

    The military-industrial complex a. consists of an alliance of the military and industry that is pitted against officials in Congress and the executive branch. b. suffered a rare defeat in 2009 when funding for additional F-22 fighter jets was rejected by

    asked by HM
  15. chemistry

    a student mixes 88.6g of water at 74.3 degree Celsius with 57.9g of water at 24.8 degree Celsius in an insulated flask.What is the final temperature of the combined water.

    asked by asembi
  16. CALCULUS HELP ASAP! please:)

    If C(x) = 15000 + 600x − 0.6x^2 + 0.004x^3 is the cost function and p(x) = 1800 − 6x is the demand function, find the production level that will maximize profit. (Hint: If the profit is maximized, then the marginal revenue equals the marginal cost.)

    asked by Latisha
  17. physics help

    In this experiment you will be asked to plot a graph of mhg versus ac and fit your data to a straight line. What is the slope of the graph equal to in terms of the rotating mass MR? (Use any variable or symbol stated above as necessary.)

    asked by Sarah
  18. Chemistry

    2.) Part A.2. Suppose 6 M HCl is substituted for the 3 M HCl in the procedure. What would be the consequence of this substitution?

    asked by Andy
  19. chemistry

    A sample of O2 gas is collected over water at 23C at a barometric pressure of 751 mmHg (vapor pressure of water at 23C is 21 mmHg). The partial pressure of O2 gas in the sample collected is: (a) 21 mmHg (b) 751 mm Hg (c) 0.96 atm; or (d) 1.02 atm The

    asked by Holly
  20. Alg 1.

    The local zoo keeps track of how many dragonflies are breeding in their insect exhibit each day. Day: 1, 2, 3, 4, 5 Dragonflies: 9, 18, 36, 72, 144 It's exponential growth. A. Write an equation for the function that models the data. B. Use your equation to

    asked by Vanessa
  21. Chemistry

    In the cchemistry lab we conducted an experiment called atomic spectroscopy. We had to find the color, energy, wavelength, and 1/lamda for Hydrogen, neon, and mercury. For hydrogen: red 1.90ev 650nm 1.54e^-3 red 2.02ev 610nm 1.64e^-3 green 2.30ev 545nm

    asked by Hannah
  22. maths

    what is a dual intercept method and how is it applied?

    asked by Karabo
  23. Chem!!

    Consider the dissolution of CaCl2: CaCl2(s) -----------> Ca2+(aq) + 2Cl-(aq) ΔH=-81.5 kJ/mol An 11.0 gram sample of CaCl2 is dissolved in 125 g water with both substances at 25.0 °C. Calculate the final temperature of the solution assuming the solution

    asked by Bob
  24. Physics

    Your teacher tosses a basketball. The ball gets through the hoop (lucky shot). Height of hoop= 3.048m height of person= 2.342 m the ball is thrown at 17 m/s at an angle of 46 degress Part 1: How long does it take the ball to reach its max height? Part 2:

    asked by Tina
  25. Reasonableness

    The flag that Nico waves has an odd number in the ones place and an even number in the tens place. RED flag 25- blue flag 14- yellow flag-32-green flag 6--oranges flag--17

    asked by Harry
  26. Economics

    The handmade snuffbox industry is composed of 100 identical firms, each having short – run total costs given by STC = 0.5q2 + 10q + 5 and short – run marginal costs by SMC = q + 10 where q is the output of snuffboxes per day. a) What is the short

    asked by Pravinesh
  27. physical science

    A certain radioactive substance has a half-life of 1 hour. If you start with 1 gram of the material at noon, how much will be left at 3:00 P.M.? At 6:00 P.M.? At 10:00 P.M.?

    asked by cheryl
  28. math alg - inequality

    2 word problems write an inequality for each problem. solve the ineequality. 1) the school record for the most points scored in a football season is 85. lawrence has 44 points so far this season. how many more points does he need to break the record? i

    asked by marko
  29. s.s

    Which of the following was not an innovation that came about do to militarization in the 1800's? A. canned food and milk B. Larger farms C. Factory production of bread D. Margarine * I chose D Margarine do you agree if not what would you choose and why?

    asked by schoolfreak
  30. Chemistry

    The sugar arabinose, C5H10O5, Molar Mass = 150.15 g/mole, was completely combusted with excess oxygen in a calorimeter. Combustion of a 0.548 g sample of arabinose caused the temperature to increase from 20.00 degrees C to 20.54 degrees C in a calorimeter

    asked by Anonymous
  31. Chemistry

    Chemical analysis show that hemoglobin contains 0.34 percent Fe by mass. What is the minimum possible molar mass of hemoglobin? The actual molar mass of hemoglobin is four times this minimum value. What conclusion can you draw from these data?

    asked by Amber
  32. environmental science

    Explain the main point concerning exponential growth and whether it is good or bad. Compare exponential growth to a logistic growth curve and explain how these might apply to human population growth. What promotes exponential growth? What constrains

    asked by len
  33. Government US

    22. The phrase that best describes the shift in America’s world position from the pre- to the post- World War II eras is a. internationalism to isolationism. b. isolationism to internationalism. c. containment to isolationism. d. interventionism to

    asked by EricaSalazar
  34. math

    when a 3- digit number is divided by 1-digit, the estimated quotient is 50. Think of two possible numbers that can give this quotient.

    asked by anthony
  35. chemistry

    A diesel engine's piston compresses 16 cm3 of fuel-air mixture into 1 cm3. The pressure changes from 1 atmosphere to 48 atmospheres. If the initial temperature of the gas was 305 K, what was the final temperature?

    asked by Nikoli
  36. Further calculus

    1) A price p (in dollars) and demand x for a product are related by 2x^2+6xp+50p^2=10600. If the price is increasing at a rate of 4 dollars per month when the price is 30 dollars, find the rate of change of the demand. 2) a) The price (in dollars) p and

    asked by Alison
  37. physics

    a 3.0 kg wood box slides from rest down a 30.0 degree inclined plane. How long does it take the box to reach the bottom of the 4.75 m wood incline? The coefficent of friction is 0.30.

    asked by Michelle
  38. Chemistry

    1) A Cobalt (II) ion has the electron configuration ____? and is ____? The answer choices were: [Ar] 3d5 4s2 diamagnetic [Ar] 3d7 paramagnetic [Ar] 3d5 4s2 para [Ar] 3d7 dia None of these I chose [Ar] 3d5 4s2 diamagnetic 2) Choose the corect statement

    asked by Hannah
  39. Physics

    A 72.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe", a track that is one-quarter of a circle with a radius of 4.65 m. What speed (in m/s) does he need at the bottom assuming that the local acceleration due to gravity is 9.80

    asked by dan
  40. Physics

    A 2 kg steel ball strikes a wall with a speed of 8.15 m/s at an angle of 54.4◦ with the normal to the wall. It bounces off with the same speed and angle, as shown in the figure. If the ball is in contact with the wall for 0.243 s, what is the magnitude

    asked by Seth
  41. Physics helppp

    A 67.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe", a track that is one-quarter of a circle with a radius of 2.55 m. What speed (in m/s) does he need at the bottom assuming that the local acceleration due to gravity is 9.80

    asked by Me
  42. chemistry

    Assume that you have 2.10 of the deadly gas hydrogen cyanide, . What is the volume of the gas at STP?

    asked by Jennifer
  43. chemistry

    If some of the CaCO3 in the sample had already formed some Ca(HCO3)2, will the volume of CO2(g) generated in the reaction be greater,less than or the same as in the experiment? Explain

    asked by Gloria
  44. ALGEBRA

    can you help with these: for each inequality tell whether the number after symbol ; is a solution. x -3 ; 3 i said yes k ¡Ý 5 ; 0 i said no 3z ¡Ü 12 ; 4 i said yes n - 5 >3 ; 6 i said no 2g + 8 ¡Ý 3 ; -1 i said yes also i need to write real word

    asked by MARKO
  45. Calculus

    Suppose oil spills from a ruptured tanker and spreads in a circular pattern. If the radius of the oil spill increases at a constant rate of 2m/s, how fast is the area of the spill increasing when the radius is 15m?

    asked by Web7
  46. physics

    m1 = 2.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 40 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.6 kg that hangs vertically. The system starts from rest with

    asked by joe
  47. communication

    When you acively make judgments about whether or not the message you are hearing is worthwile, you are a assessing the accuracy of the speakers conclusions b engaging in unethical listening behavior c engaging in a barrier to effective listening d engaging

    asked by sharib
  48. biology

    if offspring exhibit a 3:1 phenotype ratio, what are the genotypes of the parents?

    asked by Adrian
  49. OChem

    A sample of limonene has a specific rotation of +81.5. (Given that R-(+)-limonene = +125.5 and, S-(-)-limonene = -122.1). What is the %ee? ______%ee What is the molecular composition of this same sample? S isomer = ______% R isomer = ______% This is how I

    asked by Susie
  50. algebra

    Suppose you measured the diameter of a tree trunk to be 5 cm. The actual diameter can vary by at most 0.4 cm, due to the error in measuring a non-flat surface. Write an absolute value inequality for the range of acceptable diameters and solve the

    asked by shan
  51. Physics

    A worker pushes 25Kg crate a distance of 5m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic frication between the crate and the floor is 0.23. (a) What magnitude of force must the worker apply? (b) How

    asked by Abdul Waheed
  52. Physics

    A 0.250 kg block on a vertical spring with a spring constant of 4.09 × 103 N/m is pushed downward, compressing the spring 0.0900 m. When released, the block leaves the spring and travels upward vertically. The acceleration of gravity is 9.81 m/s2 . How

    asked by Abby Miller
  53. grammar

    change the boring verbs and ordinary adjectives paul was sad when the football burst

    asked by nouran
  54. Math

    Help, I can't find the pattern rule for this sequence(eg. -6,-3,2,9,18 and the pattern rule is n squared-7) The pattern: 6,28,64,114,178. What's the pattern rule? The pattern: 96,84,64,36. What's the pattern rule? The pattern: 0,24,216,960. What's the

    asked by Abigail
  55. organic chemistry

    Determine the structure of the compound C7H14O based on its 13C NMR spectrum.

    asked by jennel
  56. PHYSICS

    An astronaut of mass 78.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.500 m/s. With the

    asked by EDDY
  57. CHEMISTRY

    how many elements in (NH4)2SO4

    asked by chloe
  58. physicss help!

    m1 = 2.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 40 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.6 kg that hangs vertically. The system starts from rest with

    asked by joe
  59. Gov USA

    19. Which of the following is true about the trade imbalance in the United States? a. The United States has not had a trade surplus since 1975. b. The United States has run deficits of more than $500 billion in recent years. c. The United States has the

    asked by EricaSalazar
  60. MATH

    MIKE HAS 2 MATS THAT ARE IN THE SHAPE OF TRIANGLES THE SCALE FACTOR OF THE 2 TRIANGULAR MATS IS 7/9 WHAT IS THE RATIO OF THE PERIMETERS?

    asked by TODD
  61. Physics Lab

    (a) For the rotating mass in the lab setup by what ratio will the velocity change if the period is quadrupled? (b) For the rotating mass in the lab setup by what ratio will the velocity change if the period is decreased by a factor of four? (d) For the

    asked by Sarah
  62. physical science

    a charge of + 2x10-7c is 10cm from a charge of -6x10-6c find magnitude and direction of force on each charge

    asked by Carol
  63. chemistry

    The greatest pressure of the following is that exerted by: (a) a column of Hg 75.0 cm high (d=13.6 g/cm^3) (b) 10.0 g H2 gas at STP (c) a column of air 10 miles high; or (d) a column of CCl4 60.0 cm high (d=1.59 g/cm^3) The answer is b. I know that

    asked by Holly
  64. Government US

    Which of the following is the measure of success in an unconventional war? a. winning the support of the people b. territory gained c. enemy soldiers killed d. combat units destroyed e. regime change I WOULD SAY E?

    asked by HM
  65. Chemistry

    Calculate the molecular mass of sulphur if 35.5 g of sulphure dissolves in 1 00 g of CS2 to produce a solution that has a boiling point of 49.48 c.

    asked by Ethio
  66. chemistry

    In 1774 Joseph Priestly conducted one of his most famous experiments which lead to a method for the preparation of oxygen. The experiment involved heating a sample of mercury II oxide with a large lens. The equation for this reaction is shown below:

    asked by lissa
  67. event driven programming

    8. Write a visual basic program that accepts basic pay, allowances and tax of ten employees computes gross pay and net pay of each of the employee.

    asked by peter
  68. Statistics

    In each of the following situations, state whether or not the given assignment of probabilities to individual outcomes is legitimate, that is, satisfies the rules of probability. If not, give specific reasons for your answer. a.) when a coin is spun,

    asked by Mandy
  69. math

    I need help in solving two-step inequalities. 7 - 4w

    asked by jared
  70. physics

    You push a 4.6 kg block against a horizontal spring, compressing the spring by 27 cm. Then you release the block, and the spring sends it sliding across a tabletop. It stops 63 cm from where you released it. The spring constant is 250 N/m. What is the

    asked by Keelia
  71. CALCULUS HELP ASAP!:(

    Find a cubic function, in the form below, that has a local maximum value of 3 at -4 and a local minimum value of 0 at 3.

    asked by Marguerita
  72. Computer Applications

    How is Microsoft Word, Excel, and PowerPoint used in Criminal Justice?

    asked by Mary
  73. Chemistry

    the de broglie wavelength of an electron with a velocity of 6.00 x 10^6 m/s is ____m. the mass of the electron is 9.11 x 10^-28g.

    asked by Hector
  74. Calculus

    a) A boat is pulled into a dock by a rope attached to the bow ("front") of the boat and passing through a pulley on the dock that is 1m higher than the bow of the boat. If the rope is pulled in at a rate of 1m/s, how fast is the boat approaching the dock

    asked by Web7
  75. Chemistry

    Use standard enthalpies of formation to calculate the heat produced by the combustion of one mole of ethanol by the following equation: C2H5OH (l) + 3 O2 (g) --> 2 CO2 (g) + 3 H2O (g).

    asked by Anonymous
  76. physics

    A forse of 75 N due north and 105 N due east is acting on a point. What is the magnitude and direction of the resultant force? What is the magnitde and direction of the equilibrant?

    asked by Sarah
  77. Organic Chem

    Bromine will react with limonene according to this reaction (there's a picture, but I can't get that on here. So I'll do my best to write it out). 136.23 g/mol + Br2 ------> 296.04 g/mol Suppose 627 mg of limonene was reacted with 3.7 mL of a 7.7% (v/v)

    asked by Marvin
  78. Chemistry

    Assuming that the smallest measurable wavelength in an experiment is 0.410 fm (femtometers), what is the maximum mass of an object traveling at 815 m*s^-1 for which the de Broglie wavelength is observable?

    asked by Casey
  79. physics

    A uniform disk with a mass of 27.3 kg and a radius of 0.309 m is free to rotate about a frictionless axle. Forces of 90.0 N and 125 N are applied to the disk, as the drawing indicates. (a) What is the net torque produced by the two forces? (b) What is the

    asked by Sami
  80. PROBABILITY MATH

    a spinner has regions numbered through 1-21 what is the probability that the spinner will stop on an even number or a multiple of 3.. I am confused. I keep coming up with 17/21 but the real answer is 2/3 how how how ?

    asked by HM
  81. Anime

    How would you differentiate anime from American animated series/films? Is it in the story-line, art, etc.? Do they influence one another? Also, how has anime evolved over time, and what exactly is its purpose?

    asked by Anon
  82. statistics

    The average teenager spends 7.5 hours per week playing computer and video games. In a random sample of 110 teenagers, what is the probability that their mean time for playing games is more than 8 hours per week?

    asked by ron
  83. Culture Diversity

    I have a paper due soon where I need to interview three Japanese Americans. Could any Japanese American answer the following questions for me? I would greatly appreciate it! If you don't feel comfortable answering some of them just leave them blank,

    asked by Megan
  84. Physics...help please

    A 65.0 kg student is standing atop a spring in an elevator as it accelerates upward at 3.85 m/s2. The spring constant is 3000 N/m. By how much (in m) is the spring compressed, assuming that the local acceleration due to gravity is 9.80 m/s2?

    asked by ....
  85. PHYSICS: Conservative Forces and Potential Energy

    A mass m = 18 kg is pulled along a horizontal floor with NO friction for a distance d =6.6 m. Then the mass is pulled up an incline that makes an angle θ = 38° with the horizontal and has a coefficient of kinetic friction μk = 0.44. The entire time the

    asked by Mary
  86. Quick question about the website

    I became a member, but how come I can't post links in an answer? Gives me an error message. Thanks -Allyson

    asked by Allyson
  87. Statistics

    Upon examining its records, a hospital computes the distribution of the number of days a patient stays at the hospital. They find that 50% of patients stayed just one day before leaving. 30% stayed two days, and 10% stayed 3 days. a.) A patient is selected

    asked by Mandy
  88. calc

    The demand curve for the comics is given by the following equation, where q is the number of copies the publisher can sell per week if it sets the price at $p. q=(388-p)**2/50 text( ) \(0

    asked by lc
  89. Algebra II

    A plane is headed due west with an air speed of 212 km/h. It it driven from its course by a wind from due north blowing at 23.6 km/h. Find ground speed of the plane and the actual direction of travel.

    asked by Arielle
  90. science

    In the lab you need to make 1.00 L of a 0.300 M NaCl solution. You had previously made a 0.950 M NaCl solution that you can dilute to form your new solution. How many mL of the concentrated solution would you use to make the dilute solution?

    asked by liz
  91. Physics

    A hallway display of energy is constructed in which several people pull on a rope that lifts a block 1.15 m. The display indicates that 0.95 J of work is done. What is the mass of the block? Walk through would be great

    asked by Zdeno
  92. English

    I forgot to include the following examples. Thank you. 1) She risked being run over by a lorry while she was crossing the road. Macbeth is regretful but not repentant (of his sins???). 2) Can repentant be followed by a preposition? Shall I write "he

    asked by Henry2
  93. Science

    What is the source of energy in fossil fuels?

    asked by Bob
  94. Business Communication

    outline a writing plan for a request refusal: Buffer: Reasons: Bad News: Closing:

    asked by Roshundria
  95. English

    Iam writing a comparison essay between katy perry fireworks and the climb by miley cyrus. I need help starting off a good introduction. Thesis statment:An analysis of he literacy devices in katy perry"fireworks" and miley cyrus"the climb" reveals Miley

    asked by lalala
  96. World History

    Which of the following did reforms first try to end in the slave industry? A.Slavery in Caribbean agriculture. B.The culture of slavery in north america. C.The trade in slaves itself. D.Liberation and compensation of slaves. * this is a review for my test

    asked by schoolfreak
  97. english

    What would be some good questions to ask high school students about bullying? I have to make surveys and hand them out to students in classrooms.

    asked by Rebecca
  98. Math

    The secret number has a 7 in the ones place, The tens number is an odd number

    asked by Harry
  99. Chem

    A 0.1098 g sample of copper metal is dissolved in 34 mL of concentrated HNO3 to form Cu2+ ions and then water is added to make a total volume of 209.5 mL. (Calculate the molarity of Cu2+.)

    asked by ALMA
  100. Calculus

    Answer the following questions for the function f(x) = sin^2(x/3) defined on the interval [ -9.424778, 2.356194]. Rememer that you can enter pi for \pi as part of your answer. a.) f(x) is concave down on the interval . b.) A global minimum for this

    asked by Anonymous
  101. physics

    Consider a 8·kg rod with a length of 0.6·m and rotating about an axis passing through its center. (a) What is its rotational inertia? (B) Suppose the rod is rotating counterclockwise and speeding up with a rotational acceleration of 7·rad/s2. What is

    asked by jen
  102. Science

    Explain changes of state between solids and liquids and between liquids and gases?

    asked by Frances
  103. psychology

    dr. gibson has created a new energy drink which he hopes will also make a person smarter when testing his new drink what is the independent variable and what is the dependent variable?

    asked by stephanie
  104. pre-algebra

    After earning interest the balance of an account is $420. The new balance is 7/6 of the orginial balance. How much interest was earned?

    asked by Elly
  105. Chemistry

    10 mL of 60oC water is mixed with 10 mL of 0oC water in a perfect calorimeter. What is the final temperature?

    asked by John
  106. chem

    The mass of an electron is 9.11\times 10^{-31}~\rm kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31\times 10^{-10}~\rm m, how fast is the electron moving relative to the speed of light? The speed of light is 3.00\times10^8 ~\rm

    asked by Lindsay
  107. social studies

    how did the natavists make life difficult for immigrants in the 1900's

    asked by anonamous
  108. mathematics integration

    Perform a change of variable and integrate the following elliptical integral I = Square root [(1-x^2)*(2-x)] limits lower,-1 and upper +1 could you show working

    asked by Rikki
  109. physics

    water at 20°C has viscosity n=1.0*10^-3 Ns/m^2. sand grains have density 2400kg/m^3. suppose a 1.1 mm diameter sand grain is dropped into a 51m deep lake whose water is a constant 20°C. If the sand grain reaches terminal speed almost instantly (a quite

    asked by anna
  110. geometry

    Arc AB measures 5x + 2. Angle ACB measures 3x + 14. Find the value of x.

    asked by Anonymous
  111. Physics

    A baseball was hit at 45m/s at an angle of 45 degrees above the horizontal. How long did it remain in the air? How far did it travel horizontally?

    asked by Sarah
  112. english

    what is SCS,SCV?

    asked by sam
  113. Physics

    Runner A is initially 7.0 km west of a flagpole and is running with a constant velocity of 6.5 km/h due east. Runner B is initially 8.0 km east of the flagpole and is running with a constant velocity of 7.5 km/h due west. How far are the runners from the

    asked by Cassie
  114. world history

    The greatest extension of the frontier of food production in the 1800s ocurred in what areas? A.The open lands of south america, north america, and austrailia. B.Rice paddies of china, japan, and vietnam. C.The sub-saharan areas of africa. D.The steppes in

    asked by schoolfreak
  115. History of Immigration, proof read my essay?

    Hi, I've just finished looking over my rough draft of my essay on the History of Immigration, and was wondering if someone could proof-read it for me. Although I've had a teacher do it and everything, I thought I'd get someone elses help. So I've reached

    asked by Allyson
  116. calculus

    a closed box with square base is to have a V= 2000in^3. The material for the top and bottom of the box is to cost $3 per square inch and the material for the sides is the cost $1.50 per square inch. If the cost of the material is to be the least, find the

    asked by lauren
  117. math

    What is the future, rounded to whole dollars, of $25,000 after 7 1/2 years, if money earns at an annual rate of 5.75% compounded continuosly?

    asked by nan
  118. mathematics

    what is the equation for exponetial decay(radioactive decay) and how to use the half life in the equation

    asked by anonymous
  119. Chemistry

    How can I calculate the energy required for the ionization of an electron from the ground state of the hydrogen atom?

    asked by Lorry
  120. Statistics

    In a city with no cars of mixed color, 30% of the cars on the road are brown. Forty percent are either brown or green, and 10% are white. a.) What is the probability that a randomly selected car is green? b.) What is the probability that a randomly

    asked by Mandy
  121. Government USA-Help

    The U.S. lesson learned from the Vietnam War was that a. public opinion could be ignored by leaders during wartime. b. nuclear weapons had utility in a war of insurgency. c. there were limits on America's ability to get its own way in the world. d. the

    asked by HM
  122. Pre-algebra

    Jack runs 275 miles per day during soccer season. He has already run 25 miles this morning. He plans to run 2.5 miles each day. What is the fewest number of days he will need to reach his goal?

    asked by rosalind
  123. engineering

    I need help with a Fire Science Engineering homework. A fuel has heat of combustion equal to 30 kj/g. How much energy is released when 5 kilograms are oxidized? Assuming the fuel is reacted in 10 minutes, what is the average heat release rate for the fire?

    asked by Deborah
  124. Trig

    Solve 2cosxsinx + sinx = 0 using unit circle.

    asked by don
  125. physics180

    A satellite is in circular orbit at a height R above earth's surface. a)find orbital period. b)what height is required for a circular orbit with a period double that found in part (a)?

    asked by jaymie
  126. Health

    So, what happens when a Bully picks on another bully? What'll happen to the bully that bullied another bully for bullying a young kid?

    asked by Kaylin
  127. Algebra 2

    (x^2 + 6x + 9)-y^2 Factor. Thanks.

    asked by Brandon
  128. Science

    when you ride in a train that passes a train moving in the opposite direction, the other train appears to rush past you at a greater speed than if you were watching from a parked car at a crossing. how does the speed of your train affect your impression of

    asked by Andrew
  129. Chemistry

    Calculate the molecular mass of sulphur if 35.5 g of sulphure dissolves in 1 00 g of CS2 to produce a solution that has a boiling point of 49.48 c. Thanks to ur helps.

    asked by Ethio
  130. government

    why has the national government's power increased since the constitution was ratified? Explain fully.

    asked by Sangita
  131. Math

    Find the future value of a $10,000 investment at 10 % annual interest compounded semiannually for 4 years. (a) $ 14,000 (b) $ 12,000 (c) $ 24,774.55 (d) $ 14,774.55 (e) $ 24,477.55 Can someone please help me find the future value? I am stuck on this

    asked by Adam
  132. Calculus

    Answer the following questions for the function f(x) = sin^2(x/3) defined on the interval [ -9.424778, 2.356194]. Rememer that you can enter pi for \pi as part of your answer. a.) f(x) is concave down on the interval . I'm really stuck on this one

    asked by Anonymous
  133. s.s

    With regards to the mining and agriculture industry, in the nineteenth century, which of the following statements is false? A. specialization became more common. B. Private investment grew. C. Large companies tried to be paternalistic to keep workers from

    asked by schoolfreak
  134. chemistry

    ethanol(C2H5OH)and gasoline(assumed to be octane,C8H18) are both used as automobile fuel.if gasoline is selling for $2.20/gal,what would the price of ethanol have to be in order to provide the same amount of heat per dollar?The density and ΔHf of octane

    asked by asembi
  135. Astronomy

    How many degrees of longitude does the Sun move in each hour?

    asked by James
  136. trigonometry

    R and S are in the same horizontal plane as the base of a cliff, but R is 132.6 meters nearer it than is S. They find the angles of elevation of the top of the cliff to be 32 degrees and 36 minutes and 63 degrees and 13 minutes. how high is the cliff?

    asked by danica
  137. math

    5th grade class of 16 students, one-half of the student arrived at school early, one-fourth arrived on time, and one-eighth arrived late. how many students were absent.

    asked by david
  138. Chemistry

    Ethanol, C2H5OH, MW = 46.1 g/mole, is a popular alternative to hydrocarbon fuels. Calculate the grams of ethanol that must be burned to provide 4082 kJ of heat.

    asked by Anonymous
  139. Math

    Robert gave one-half of his marbles to Dean. Then he gave two-thirds of the remaining ones to Mark. If he ended up with 10, how many did he have when he stsrted?

    asked by Dylan
  140. math

    I am confused on this problem. k/5 + 3/20 < 3/10 I am not sure how to solve.

    asked by rosalind
  141. science

    was is density if mass = 10g and volume = 2cm squared?

    asked by kathy
  142. s.s

    Even greater than their use for human food, fish are a vital source of? A.Lamp oil B.Fertilizer C.Industrial lubricants D.Lotion and creams *Well I thought the answer would be A or C because fish oil is used and mixed with alot of things.What do you think?

    asked by schoolfreak
  143. Pre Calculas

    verify the following 1+1/csc^2x-1=sec^2x

    asked by Raven
  144. algebra

    A pilot heading his polane due north finds the actual direction of travel to be 5.2 NE. The planes's air speed is 315 mi/h, and the wind is from die west. Find the plane's ground speed and the velocity of the wind.

    asked by Arielle
  145. s.s

    The San hunters of southern africa weren’t overwelmed during the nineteenth century because they? A.Were protected by a treaty. B.Were moved to reservations where they could be protected. C.Managed to effectively fight off western colonists. D.Live in a

    asked by schoolfreak
  146. Chris

    The curve y = x/(1 + x^2) is called a serpentine. Find an equation of the tangent line to this curve at the point (2, 0.40). (Round the slope and y-intercept to two decimal places.)

    asked by Calculus
  147. math

    mass = 20 g volume = 20 ml density = ? how do you solve?

    asked by jayson
  148. physics

    A 250-ohm resistor is connected in parallel with a 190-ohm resistor. What is their equivalent resistance?

    asked by elisabeth
  149. algebra

    the dart from a high-powered dart gun follows a path given by h(t)=-4t^2+62t+10 where h is the height in inches t seconds after it is fired. What is the maximum height reached? how many seconds did it take to reach this height?

    asked by tommy
  150. Physics

    How do you get the velocity of a particle given a potential energy diagram and its mass?

    asked by Me
  151. Please help with steps: Geometry

    Two mountain bikers have been separated and are hoping to find each other. One biker reads on her GPS that she is located at 102.9 degrees west and 44.1 degrees north. She decides to ride towards the mountain peak, which on the map has the coordinates

    asked by Erika
  152. 3rd grade math

    leo saw 8 times more snails than starfish at the aquarium. he saw 10 more sea horses than starfish. leo saw 70 animals. how many of each did he see?

    asked by delaney
  153. algebra

    write an equation of the line parallel to the line given by 3x-2y=8 and having the same y-intercepts as the line given by 2y+3x=-4

    asked by Sharday
  154. 'opinions please'

    I wrote a post earlier, I was hoping a few more people could write their opinion (side) on it. I really appreciate it!

    asked by y912f
  155. science

    you push a 12.5 kg cart with a force of 14 N if the cart starts from rest how far does it move in 3 seconds?

    asked by Eve
  156. research & Evaluation

    I have an airplane that has an ignition system that works like this. There are 2 energy producing devices, called magnetos that "fire" the spark plugs, 2 per cylinder. There is a 1 in a 1000 chance that one will fail. What is the chance that Magneto A OR

    asked by Sam
  157. psychology

    dr. gibson has created a new energy drink which he hopes will also make a person smarter when testing his new drink what is the independent variable and what is the dependent variable?

    asked by stephanie
  158. psychology

    Nisa has grown up in a small village in the foothills. There was no electricity and water had to be hand pumped. They seldom saw people from the "outside." When she entered school the bus had to pick her up at 6:30 am in order for her to arrive at school

    asked by tj
  159. I NEED HELP. PLEASE

    I do not understand point-slope and standard form. Please help me.

    asked by Jade
  160. Physics

    I posted this question before and i really need help on it... A pitcher throws a baseball to a batter at 95 mph from a distance, d, away. The batter swings and hits the ball. (5280 ft = 1 mi, g = 32.174 ft/s/s). a) Assuming the pitch travels the full

    asked by Skyler
  161. Algebra II

    The resultant of two forces of 1120 N and 2210 N is 2870 N. What angle does the resultant make with each of the two forces?

    asked by Arielle
  162. Social Studies

    what an indigenous group who left their cities around 800 A.D.

    asked by Davidson
  163. psychology

    . Based on the theory of multiple intelligences by Gardner most people exhibit: (Points: 5) intelligences which function in isolation. a single intelligence. one dominate intelligence. all eight intelligences in different degrees.

    asked by Anonymous
  164. psychology

    The use of the lateral prefrontal cortex during intelligence testing indicates that: (Points: 5) a global "workspace" exists in the brain. there is little neuroflexibility. the prefrontal cortex is the central receiving area for all incoming stimuli. there

    asked by Anonymous
  165. English

    What books would connect to chapter 7 of the Great Gatsby? I can't seem to connect any books to that chapter. Any ideas?

    asked by Anonymous
  166. Algebra II

    The heading of a plane is 27.7 degrees NE, and its air speed is 255 mi.h. If the wind is blowing from the south with a velocity of 42.0 mi/h, find the actual direction of travel of the plane, and its ground speed.

    asked by Arielle
  167. university mathematics

    Integration Applications: find the area enclosed by the following curves:- Y= lnx and y= -2x+3 and the ordinate x=3

    asked by Avi
  168. Algebra II

    A plane flies with a heading of 48 degrees NW and an air speed of 584 km/h. It is driven from its course by a wind of 58.0 km/h from 12.0 degrees SE. Find the ground speed and the drift angle of the plane.

    asked by Arielle
  169. Math C30

    Solving Equations Containing Circular Functions ... Solve 2cos^2=1

    asked by don
  170. Maths

    A finance company borrows money on which it pays interest at the rate of 14% pa. If it pays interest half yearly, find the return per half year on an investment of $1700 Please show working out thanks

    asked by 10M1
  171. Help with math

    I am stuck on a probability question. Please help and tell me the easiest way to find the answer to this.. I am confused and keep getting 5/6 A fair die is rolled..what is the probability of rolling an odd number or a number less than 3? the actual answer

    asked by HM
  172. Industrial Revolution Beneficial?

    Why was the Industrial Revolution beneficial? And what would be a counter-argument? I need to write a persuasive essay!

    asked by Skylar
  173. Language Arts

    What types of Figurative language is this? 1Emily was and oxygen-dependent mammal, a hairless ape.

    asked by Anonymous
  174. chemistry ASAP

    can anybody please explain nomenclature to me ? how to name? for example: Na3PO3 NH4CLO2 AuNO2

    asked by maya
  175. Calculus

    A 20' ladder leans against a building. The bottom of the ladder is sliding away horizontally at a rate of 2 feet per second. How fast is the top of the ladder sliding down the building when it is 12' above the ground?

    asked by Amy
  176. world history

    The main goal in the Habsburg Empire in World War 1 was?

    asked by schoolfreak
  177. AP European History

    Im supposed to do this outine on the Glorious Revolution and for the 2 part it says list and explan 3 The public policy changes that took place does that mean like William and MArys Bill of rights, and the toleration act as well as the Act of settlement im

    asked by Chelsea
  178. world history

    The economic success of the Mughals in India was dependent upon

    asked by tasha
  179. AP Government

    Who assigns bills the the committees? Why is this an important power to have and how can this person use this influence?

    asked by Angela
  180. English

    Is this sentence still correct though if I use "had to" instead of "must"? 1) Macbeth admits that if he had to acknowledge his deed, then it would be best for him to lose all knowledge of himself. Thank you. English - SraJMcGin, Tuesday, November

    asked by Henry2
  181. Science

    Examine the obvious environmental impacts as well as significant social and physical ramifications of urban sprawl. What is the relationship between landscape and psychological well being? After defining this relationship, discuss how the presence or

    asked by Lisa
  182. English

    I am writing a comparison essay between katy's perry "Fireworks" and "The Climb" by Miley Cyrus. Can somebody help me start with 2 sentences for a strong introduction

    asked by lalala
  183. Math Challenge check

    I can appreciate your honesty. However, I thought this was a blog to help people not to insult them. What may seem obvious to one person may not be to the next. Especially so for young students who come here for help with homework problems.

    asked by To: Steve /Please Help
  184. physics

    The velocity of a 1.5 kg block sliding down a frictionless inclined plane is found to be 1.13 m/s. 1.2 s later, it has a velocity of 4.37 m/s. What is the angle of the plane with respect to the horizontal (in degrees)?

    asked by Anonymous
  185. reading

    I am helping my sister with her hw. They are to write the meaning of a group of words or in that case idioms. What does BET DOLLARS TO DOUGHNUTS, and GETAROUN TO CALLING mean? Please help!!!! Thank you!!! :-)

    asked by saranghae12
  186. Pre Calculas

    how would you varify the following sinx+sinx cot^2x=cscx

    asked by Raven
  187. psychology

    Nisa has grown up in a small village in the foothills. There was no electricity and water had to be hand pumped. They seldom saw people from the "outside." When she entered school the bus had to pick her up at 6:30 am in order for her to arrive at school

    asked by tj
  188. math

    if 5 friends want to share 18 ounces of chocolate equally by weight how many ounces should each friend get?write an equation show your work?

    asked by chelse combs
  189. s.s

    By 1900, _______ made up 25 percent of Japan's total industrial output. A. Raw silk B. Steel C. Cotton yarn D. Tea I chose Cotton Yarn because in 1900 yarn started being reconized more. I believe tea would have been alot more than just 25%.

    asked by schoolfreak
  190. math

    Consider a 8·kg rod with a length of 0.6·m and rotating about an axis passing through its center. (a) What is its rotational inertia?

    asked by jen
  191. Physics

    the coefficient of friction between a 78 kg box and a warehouse floor is .21. what is the friction force?

    asked by Bailee
  192. mathematical induction

    solve this using the mathematical induction : 1/1(3)+1/3(5)+1/5(7)+......+1/(2n-1)(2n+1)=n/(2n+1)

    asked by aya
  193. statistics

    The external validity of the results from a research study refers to the?

    asked by Anonymous
  194. Basic Technology

    The processes on how to construct a rhombus with a complete diagram on a constructed rhombus.

    asked by Inikori
  195. Science

    Why is water only compound occuring naturally on earth in three states?

    asked by Frances
  196. algEBRA

    Could you recommend practice sites for inequalities using less than and greater than and word problems

    asked by MARKO
  197. Math

    barry puts TVs on a 15-foot shelf in his electronics store. He allows 2 1/2 feet of space for each TV. He will be able to put 5.5 TVs on the shelf. Is this reasonable or not

    asked by kev
  198. science

    how to calculate percent error

    asked by anonymous
  199. Social Studies-Amrican History

    here is a list of individual people who helprd Aamerica gain independence from Britian... Can you add to it??? Please an Thank you. Martha Washington John Adams Charles Cornwallis Thomas Jefferson Frederick William, baron von Steuben John Jay George III

    asked by Finally 14.
  200. Statistics

    The basketball player Steve Nash is the all-time career free throw shooter among active players. He makes about 90% of his free throws. In today's game, Nash misses his first two free throws. The TV commentator says, "Nash's technique looks out of rhythm

    asked by Mandy
  201. physics

    A 350-ohm resistor is connected in series with a 270-ohm resistor. What is their equivalent resistance in ohms?

    asked by elisabeth
  202. Caculus

    y = 500/1+75e^-.625 x = egg mass y = number of tree (thousand) The function is show the forest defoliation1. Find the percent of forest defoliation if the egg mass are 100? (Using derivative) Thank you

    asked by alex
  203. research & Evaluation I

    I have a car that has gone 50,000 miles, on average without a breakdown. What is the chance, in the next 5000 miles I have a breakdown?

    asked by Sam
  204. English

    Subject: Get Ready! We are hoping to be back at work soon, with everything running smoothly, same production schedule and no late projects or missed deadlines. So you need to clean out your desk, put your stuff in boxes, and clean off the walls. You can

    asked by Colby
  205. Algebra II

    Forces of 675 lb and 828 ob act on a body. The smaller force acts due north; the larger force acts N 52.3 degrees E. Find the direction and the magnitude of the resultant.

    asked by Arielle
  206. calculus

    For what values of theta, on the polar curve r=theta, 0

    asked by Anonymous
  207. MATH

    Using the Law of Cosines for vectors, give a vector proof that if quadrilateral ABCD is a rhombus, diagonal AC bisects

    asked by Pam
  208. science

    How does soil most impact living things? A. different soils cause temperature extremes. B. different soils support different types of plants. C. different soils absorb different amounts of sunlight. D. different soils are different colors. My answer is B

    asked by lidia
  209. math

    How would you use the substitution method to answer 1/3x-2=1 x-6y=3, and what would be the solution?

    asked by Penny
  210. math

    I need help with a problem. One third of a number, decreaesd by thirty-six, is at most twenty-two. Find the number.

    asked by Johnnie
  211. Spanish- SraJMcGin please recheck

    I'm not sure what you meant by correcting this sentence--Thank you for any further explanation you can give-- 3. Tocar el piano es______tocar la guitarra. (+bueno) Tocar el piano es mejor que tocar la guitarra. You said in an earlier post: mejor

    asked by Allie
  212. U.S History

    Describe how the french navy helped George Washington at Yorktown. Thank's

    asked by Andrew
  213. Opinions wanted

    My book flew across the room as another huge wave crashed against the ship. This was the worst vacation of my my life. My fairy warned me this wasn't the time for a trip around the world, but did I listen? NOOOO, I was convinced that there was no wrong

    asked by Finally 14.
  214. physics

    A rope is used to pull a 2.54 kg block at constant speed 4.48 m along a horizontal floor. The force on the block from the rope is 5.87 N and directed 29.8° above the horizontal. What are (a) the work done by the rope's force, (b) the increase in thermal

    asked by Keelia
  215. Math

    One canned juice drink contains 30% orange juice; another is 10% orange juice. How many liters of each should be mixed together in order to get 20L that is 28% orange juice? I want step by step help.

    asked by GATOR
  216. geometry

    A picture frame is shaped as a heptagon. The measure of one angle is 126°. The remaining interior angles are congruent. What is the measure of each remaining interior angle in the picture frame?

    asked by vvfdhdh
  217. math

    What is tan(arccos3/4)

    asked by ryan
  218. Chemistry

    15 mL of 60oC water is mixed with 10 mL of 0oC water in a perfect calorimeter. What is the final temperature?

    asked by Paul
  219. Grade 11 Functions

    A baseball player hits a foul ball into the stands. He wants to know where the ball would've landed if the stands had not been there. The points they give you are: The y-intercept (0,1), (2,2.5) and (134,18). I'm pretty sure you are looking for the zeroes.

    asked by Jim
  220. english

    Some people say that victims of bullying eventually become the bullies. Why do you think this happens?

    asked by Rebecca
  221. business writing

    I have to write a business letter, a memo and an e-mail on one document regarding human resources administrative assistant organizing seminar on sexual harrassment.

    asked by brenda
  222. math

    come si fanno le frazioni di un numero

    asked by stefan
  223. Math C30

    Last Question disregard .. ooops Solving Equations Containing Circular Functions .. Solve 2cos^2x=1

    asked by don
  224. Algebra-Graphing

    I need to find the vertex, axis of symmetry, and if the graph will open upward or downword f(x)=-3x^2-5

    asked by MiNdy
  225. Algebra 2

    x^4n - y^6n+2. Factor. Thanks.

    asked by Brandon
  226. Science

    Plural Noun That Change Spelling .Write the plural noun for each singular noun. Wolf man tooth

    asked by mary
  227. Computer science

    THIS IS C PROGRAMMING I NEED TO CREATE A METHOD! Create a method areaOfaTrapeziod when given a, b, and h (all doubles), will return the area (double) of a trapezoid. Use the equation pictured below. THANKS IN ADVANCE :)

    asked by Nan
  228. English

    I have to write a Haiku with has to do with Science, please let me know if this is good. Science is great fun you get to use chemicals, but safety is first. Thank you.

    asked by Kyle
  229. Algebra

    Write the slope-intercept equation for the line that passes through (-3,-15)and is perpendicular to -6x+8y=3

    asked by Jackie
  230. social studies

    how to find the mummification process.

    asked by tristan
  231. s.s

    Which of the following was the only african state that increased in size and power in the 1800's? A. South Africa B. Zimbabwe C. Ethiopia D. Sumatra * I chose B Zimbabwe do you agree or disagree if this is wrong in your mind what would you have chosen and

    asked by schoolfreak
  232. Algebra

    Solve the equation 5x+7=13-7x graphically. then check your solution algebraically.

    asked by Adri
  233. world history

    Ignatius Loyola was a

    asked by tasha
  234. English

    I forgot to add two doubts. Thank you very much. 1) Macbeth regrets having killed Duncan but doesn't repent of his sin. As a matter of fact, the word Amen stuck in his throat. 2)Do you say "clean his hands of the burden of the guilt which weighs on his

    asked by Henry2
  235. psychology

    I need help to Compare and contrast Humanistic and Existential therapies.

    asked by Sharon
  236. math

    using these digits 1,9,3,6 Whatis the least 2-digit you can make? What is the greatest 2-digit you can make?

    asked by lori
  237. global healh and nursing

    how and why do nurses use the epidemiology methods and data?

    asked by maria
  238. math

    Howard leaves the dock and sails 2.5miles west He turns south and sails 3.5 Then he turns east and sails 2.5 miles In what direction should howard turn if he wants to use the most direct route to return to the dock ? If Howard use this route ,how many

    asked by Angie
  239. math

    What is the future, rounded to whole dollars, of $25,000 after 7 1/2 years, if money earns at an annual rate of 5.75% compounded continuosly?

    asked by nan
  240. algebra ineqUALITIES

    can you check these tell if the number after the: color is a solution x < 7; 7 i say yes p > -3;3 i say yes k is greater than or equal to 5; 0 i say no 3z is less than or equal to 12;4 i say yes n - 5 > 3; 6 i say no 2g + 8 is geater than or equal to 3;-1

    asked by marko
  241. world history

    By 1890, united states factories produced _______ as those of Britians? A.Twice as much. B.Half as much. C.One- quarter as much. D.Three- quarters as much. * The answer I chose was D three-quarters as much would you agree or disagree and what would you

    asked by schoolfreak
  242. algibra 2

    -2x+3y=14 x+2y=7

    asked by odaine
  243. statistics

    A population of scores is normally distributed with a μ = 40, and a σ = 13. What is the probability of randomly selecting a score greater than 54

    asked by Anonymous
  244. calc

    The likelihood that a child will attend a live musical performance can be modeled by the following equation. q=0.01(0.0007 x**2+0.4 x +33) text( ) \(15

    asked by lc
  245. Geography

    What would some consequences be if latin america legalized marijuana for recreational use?

    asked by Kayla
  246. Government US

    28. One reason why the Soviet Union eventually collapsed was its a. heavy defense expenditures. b. isolation from western technology and markets. c. inefficient centralized command economy. d. perestroika initiative. e. All these answers are correct. I

    asked by EricaSalazar
  247. English

    Shall I use the present simple when describing the various parts of the Mariner's tale? Thank you for your corrections. 1) The ancient mariner narrates of how he and his fellow mariners reach(ed) the equator ad the Polar regions after a violent storm.

    asked by Henry2
  248. Astronomy

    Explain how you could determine, given the following 3 pieces of information, (you need all 3 together not each one individually) the radius of the Earth. 1) Jakarta and Port Moresby, the capital of Paua New Guinea, are two cities on the equator. 2) A

    asked by James
  249. mathematics

    calculate the following integral: Perform a change of variable and integrate the following elliptical integral I = Square root [(1-x^2)*(2-x)] limits between -1 to 1 please showing any working

    asked by ryan
  250. History

    I know that I posted this quetsion earlier How did the Spanish change the way that the Pre-Colombian people lived?we don't have a book. Is there any way you can help me start off someway so I know what to search or get a general idea. Thank you.

    asked by Samantha
  251. Government US

    38. Regarding Soviet foreign policy, President Harry Truman believed that the Soviet Union was a. an implacable foe that required direct opposition. b. a regional threat. c. not a threat to its neighbors, Europe, or the United States. d. likely to evolve

    asked by EricaSalazar
  252. Math/DataSets

    I am looking for a good problem about data sets. Something along the lines of having to crtically look at a large chart of numbers and glean the appropriate ones. Make sense?

    asked by Jeff
  253. statistics

    A machine produces 49 titanium bolts every 2 hours. At this rate how many bolts does the machine produce in 36 minutes?

    asked by April
  254. Industrial Revolution

    Can I have a 8-10 sentence summary on the basics of the industrial revolution?

    asked by Skye
  255. atomic energy

    what are the uses of atomic energy?

    asked by vamsi
  256. HELP MATH

    I am stuck on a probability question. Please help and tell me the easiest way to find the answer to this.. I am confused and keep getting 5/6 A fair die is rolled..what is the probability of rolling an odd number or a number less than 3? the actual answer

    asked by HM
  257. Algebra II

    A certain escalator travels at a rate of 10.6 m/min, and its angle of inclination is 32.5 degrees. What is the vertical component of the velocity? How long will it take a passenger to travel 10.0 m vertically?

    asked by Arielle
  258. English

    Had to write a haiku related to science, is this ok? Chemicals make boom Chemicals should not be ate It makes good science Thank you!

    asked by Beau
  259. English

    Could you please check the following sentences? 1) Why not meet at six o'clock? 2) Why don't we meet at six o'clock? In what way is sentence 1 different from 2? Is the speaker not included in sentence 2? 3) She tells her husband he must pretend to be

    asked by Henry2
  260. From Theory To Practice

    2. According to Leeds, at snack time, children should be given _______ of each food for each year of their lives. A. two tablespoons C. one-quarter cup B. one tablespoon D. one cup

    asked by amor
  261. Algebra II

    A projectile is launched at an angle of 55.6 degrees to the horizontal and follows a straight path with a speed of 7550 m/min. Find the vertical and horizontale components of this velocity.

    asked by Arielle
  262. physics

    The record for a marathon is 1 h, 21 min, 21 s. The marathon distance is 25.84 km. Determine the average speed in m/s of a runner achieving this record.

    asked by joy
  263. math

    write a matrix for x-y=8,-2x-5y-6z=-27, 9x+10y-z=54

    asked by megan
  264. reading

    I am helping my sister with her hw. She is doing special meanings on a group of words on each of the problems what does DIDN'T GET AROUND TO CALLING mean? Please help!!! Thank you!!!

    asked by saranghae12
  265. Physics

    To win the game, a place kicker must kick a football from a point 20 m (21.872 yd) from the goal, amd the ball must clear the crossbar, which is 3.05 m high, When kicked, the ball leaves the ground with a speed of 16 m/s at an angle of 58.1 degrees from

    asked by Tina
  266. statistics

    a firm has 10 sales reps. In how many ways can they be assigned to two territories, with 7 reps in one territory and 3 in the other?

    asked by sue
  267. physics

    . Hydrogen generated from the reaction between magnesium and nitric acid was collected. At a temperature of 30°C and pressure of 1.2 x 105 Nm-2, 340cm3 of gas was collected. What would the volume of this gas be at s.t.p.?

    asked by blaire
  268. Spanish

    Please check these- Fill in comarative form for the first three: 1.Surfear es ____ interesante (cazar.) Surfear es más divertido que cazar. 2.El fútbol es ____ el golf.(interesante) El fútbol es más interesante que el golf. 3. Tocar el piano

    asked by Allie
  269. math

    Explain why 0.7=0.70.

    asked by Christian
  270. CHemistry

    Methods of measuring the rate of change? 1. - change in pH? can you explain me plz :)

    asked by hmmm
  271. calculus

    A bridge worker on the top deck of a double decked bridge needs to lift a 30 kg tool box, with a cable of uniform density 2 kg/meter, from the ground 15 meters below him to the lower deck of the bridge which is 10 meters above the ground. How much work is

    asked by Steve
  272. math

    Explain why 2tenths is larger than 2 hundreths.

    asked by Christian
  273. math

    Consider a 8·kg rod with a length of 0.6·m and rotating about an axis passing through its center. (a) What is its rotational inertia?

    asked by jen
  274. English

    Could you please check these sentences? Thank you. 1) Have you thought about (of?) selling your second-holiday home? Have you considered selling your house? 2) She mentioned selling her house and moving into a smaller one. She doesn't feel like having an

    asked by Henry2
  275. bio

    what is a mechanism for how EB1 can mediate the extension of ER cisternae along microtubules?

    asked by Allie
  276. MATH HELP HELP HELP HELP HELP

    Suppose that a set S is bounded above. Let r be any real number and t be any positive real number. Let T = {r + tx : x e S}. Show that sup T = r + t sup S

    asked by MATH HELP HELPPP
  277. bio

    how does the explosive polymerization of G-actin propels L. monocytogenes through the cytoplasm?

    asked by Allie
  278. Translation

    I am in a translation class and the sentence contains this phrase can you tell me what it means The city was brutal in its reaction wiping 50 3/4p off the share price what does 50 3/4p stand for

    asked by John
  279. bio

    what is the cisternal maturation hypothesis for Golgi apparatus function?

    asked by Allie
  280. Ochem

    If you start with 2.97 g of zest and obtain 459 mg of pure limonene, what is your percent recovery? I was thinking of dividing .459g by 2.97g and then multiplying by 100 to get the percent recovery. But then I realized that the zest and limonene aren't the

    asked by Lucille
  281. English

    Thank you very much. I'm posting the whole summary to you again because I think there are a few more things to check. 1.In the first part the ancient Mariner stops a wedding guest to tell him his dreadful tale. He tells how he and his fellow mariners

    asked by Henry2
  282. Spanish 8th grade

    Could you please check these? 1.¿ Qué te encanta hacer en el invierno? Me encanta el esqui. 2. ¿Cuál es tu pasatiempo favorito y por qué? Mi pasatiempo favorito es practico al fútbol americano . 3. ¿Es el fútbol o el fútbol americano más

    asked by Matthew W.
  283. English

    I left out the last two parts. Thank you very much. 1.The fifth part continues the process of soul’s revival. The ship begins to move and celestial spirits stand by the corpses of the dead men. 2. In the sixth part the process of healing seems to be made

    asked by Henry2
  284. History

    How did the Spanish change the way that the Pre-Colombian people lived?

    asked by Samantha
  285. Physics

    A tire contains air at a pressure of 2 bar at 15 degrees Celsius. If the tires volume is unchanged, what will the air pressure in it be when the tire warms up to 40 degrees Celsius as the car is driven?

    asked by Diana
  286. Business

    What is the difference between production and productivity? Give a real world example of both as they apply to you. Make sure that you support your answers with research from the text book or other sources. Provide substantive responses to at least two

    asked by jon
  287. Math-PLEASE HELP ME

    I do not understand point-slope and standard form. Please help me.

    asked by Jade
  288. math

    Explain why 0.7=0.70.

    asked by Christian
  289. algebra

    If you have a^ + b^= (a+b)(a+b). Is this always true, never true, or sometimes true? Explain.

    asked by christy
  290. Physics

    Hi, here's a problem that I have difficulty with to solve. Block M2, w/c has a 20 kg mass, is on a frictionless table and it is firmly attached to one end of a spring with k = 2.5 N/m. The other end of the spring is anchored to the wall. Another block, M1

    asked by Chika
  291. Algebra

    how do you solve this problem? (24b^3+16b^2+24b+39)/(4b+4)

    asked by Cathy T
  292. Science

    -What is Pot of Gold? -What did inferences could scientist make from Pot of Gold on Mars?

    asked by Ady
  293. psychology

    Both Albert's mother and father had dropped out of high school. His brother left school in the eighth grade. Based on the performance of his family members Albert does not expect that he will complete high school. He has developed a(n)

    asked by Anonymous
  294. psychology

    . One attribute that the Stanford-Binet, WAIS-III, and WISC-IV have in common is that they are all: (Points: 5) timed. written. administered individually. group tests.

    asked by tj
  295. chemistry

    can anybody please explain nomenclature to me ? how to name? for example: Na3PO3 NH4CLO2 AuNO2

    asked by maya
  296. AP CHEM (URGENT)!!!!!

    How can ionization potential and electron affinity be used to predict whether or not a simple synthesis reaction will occur between a metal and a non-metal.

    asked by Valm
  297. Chemistry

    We have to conduct a lab experiment for a photochemical reaction. We will be using a redand violet film and filter paper labeled 40W and 60W. On each piece of paper we will add 1 drop of NaCl and AgNO3 and then let it sit under a lamp to see what happens.

    asked by Hannah
  298. psychology

    The testing company has hired qualified people in the field to administer the new test bank to subjects of different ages and ethnic backgrounds. They need a sizable number of scores from inner city, urban, and country/small town subjects. Their goal is to

    asked by tj
  299. Math

    How does knowing 26=30 - 4 help you find 7+26?

    asked by Kevin
  300. statistics

    I have an airplane that has an ignition system that works like this. There are 2 energy producing devices, called magnetos that "fire" the spark plugs, 2 per cylinder. There is a 1 in a 1000 chance that one will fail. What is the chance that Magneto A OR

    asked by Sam
  301. sentences

    what sentence can i use using the word "monk''

    asked by jennifer white
  302. calculus

    For what values of theta, on the polar curve r=theta, 0

    asked by Anonymous
  303. research & Evaluation

    The housing market in my area has seen a 12% trend downward in the average price. Further, the time to closing appears to have taken more time as compared to 3 years ago. Here are the values for the average time to close for the houses in the area. Mean =

    asked by Sam
  304. psychology

    How are a cat and a dog alike?" An answer to this question requires: (Points: 5) crystallized intelligence. intrapersonal intelligence. fluid intelligence. Eastern intelligence.

    asked by Anonymous
  305. Algebra 1

    Look for a pattern in each table of values to determine which model best describes the data. Then write an equation for tue function that models the data. X: -1, 0, 1, 2, 3 Y: 6, 0, 6, 24, 54

    asked by Austin
  306. psychology

    In their book The Bell Curve, Murray and Herrnstein supported their claim of intelligence differences between races as attributable to

    asked by tj
  307. math

    the basic unit of mass in the metric system

    asked by ST
  308. Stats

    If there are only two possible outcomes to an experiment then... A.) the two corresponding probabilities must each be.50. B.) the two corresponding probabilities could be any numbers between 0 and 1, but must add up to 1. C.) the two corresponding

    asked by Mandy
  309. opinions pleasee

    I'm doing a speech on abortion, and I'm on the side that's against it. I wanted to know some reasons why people are pro-life. I mean I'm against abortion because I have 2 little siblings and I feel like it's murder. I feel like abortion should be illegal,

    asked by y912f
  310. MATH

    Given a binomial distribution with n = 21 and p = 0.76, would the normal distribution provide a reasonable approximation? Why or why not?

    asked by Jen
  311. psychology

    "Who was the first vice president of the United States?" The correct answer to this question requires: (Points: 5) crystallized intelligence. intrapersonal intelligence. fluid intelligence. Eastern intelligence.

    asked by Anonymous
  312. psychology

    One of the arguments against inherited racial differences in intelligence is based on data that shows: (Points: 5) a college education reduces the gap between the IQ scores of white and black races. nutrition reduces the gap. scores for black test takers

    asked by tj
  313. psychology

    The experimental rats were being raised in separate environments. One group lived in the traditional cage in a quiet, but well lighted room. They were supplied with plenty of food and water. The second group inhabited "Rat Disney Land." There were colorful

    asked by tj
  314. History

    What language was spoken/written by the venerable bede/ pre Beowulf period?

    asked by Chris
  315. Physics

    Hi, here's a problem that I have difficulty with to solve. Block M2, w/c has a 20 kg mass, is on a frictionless table and it is firmly attached to one end of a spring with k = 2.5 N/m. The other end of the spring is anchored to the wall. Another block, M1

    asked by Chika
  316. psychology

    Time Remaining: 1. If the concept is truck, the prototype might be: (Points: 5) a Ford pick up. bulldozer. gravel eighteen wheeler. personnel carrier. 2. If the prototype is block or ball, the concept is: (Points: 5) construction. toy. child. play. 3. All

    asked by tj
  317. chemistry 111

    How many moles are in 6.35 g of NaOH

    asked by Anonymous
  318. CSS/ Web programming

    Test the following CSS code: p.standout{font-size: 24pt; color:blue;background-color:red}; To really make it stand out, use a red background What background color do you see when displayed by IE? How about Firebox? Explain why.

    asked by Mike
  319. Psychology

    could some please help me to compare and contrast these two thrapeutic approaches=humanistic/existential and Cognitive behavior therapy

    asked by Sharon
  320. math pre cal

    Your industry currently employs 3,800,000 workers. If this labor force is growing expotentially at an annual rate of 2.3% how long will it be before the number of employees reaches 5,000,000?

    asked by nan
  321. SOCIAL STUDIES

    What library is the largest with over 120 million items?

    asked by Jacy
  322. Trig

    Solve 2cos sq x = 1 using the unit circle.

    asked by don
  323. History

    Were Habsburgs protestant or catholic? Majority if not all? Were Valois protestant or catholic? Majority if not all?

    asked by European History
  324. algerbra

    one adult for every 25 freinds

    asked by Anonymous
  325. Math

    A loan of $ 100 at 6% is made for 3 years, compounded annually. What is the total loan value at the end of 3 years? (a)$ 119.10 (b)$ 401.76 (c)$ 448.00 (d) $ 501.76 (e)$ 510.76 I need help with this question not asking for the answer.

    asked by Anonymous
  326. Math

    The annual interest rate on an investment is 8%. What is the quarterly rate? (a) 1% (b)12% (c) 16% (d)2% (e)3% Can someone help me figure out the formula for finding out the quarterly rate?

    asked by George
  327. 8th grade math

    collect like terms 3a+2a^2+a-a^2

    asked by Hector
  328. government

    How does the supremacy clause make federalism work? Discuss.

    asked by Sangita
  329. reading

    what is the idiom of CHAIN UP, THE LINE WAS DEAD, and LIKE HIS INSIDES WERE FALLING OUT? Please help!!!!! Thank you!!!!

    asked by kpop rules
  330. science

    Observe one hour in a classroom (preschool, pre-kindergarten, kindergarten

    asked by tt
  331. social studies

    between 1400000 and 500000 years ago early hominids learned how to?

    asked by lydia
  332. English

    I have to write a Haiku related to science, not sure what I need to do. Please help.

    asked by Beau
  333. geometry

    find the measures of the interior angles.. (triangle) 110-x , 3x-10, 2x write equation too .

    asked by Shelby
  334. calculus

    find the intervals on which the function is increasing, decreasing, or constant. (-7,2)(-6,2)(-5,2)(-4,2)(-3,2)(-2,2)(-1,2)(1,3)(3,4)(5,5)

    asked by Terry
  335. statistics

    Out of a group of 100 US residents, how many would you expect to have travelled no more than 386.9 miles in any given year?

    asked by kwilcox
  336. probability and statistics

    Out of a group of 100 US residents, how many would you expect to have travelled no more than 386.9 miles in any given year?

    asked by kwilcox
  337. adult education

    : Sharing learning through narrative communication

    asked by Fran Henry
  338. math

    what are triangular number's

    asked by louise
  339. Math

    What does it mean to maesure and compaer inches to the foot?

    asked by Towanda
  340. English

    I just wanted you to clarify a few doubts. You have already checked the first sentence. I just wanted to know if the use of the present is correct. 1) He imagines that even all the water from Neptune's ocean could not wash away the burden of guilt that

    asked by Henry2
  341. 6th drade math

    There are 7oz of suger in a suger 16oz box of honey.What percent of honey is suger? Round to the nearest percent.

    asked by rob
  342. English

    I urgently need you to check these sentences. I included my doubts in parentheses. Thank you. 1) The bride, as red as a rose, has entered into (?) the hall (OR the hall /without into) 2) The ice split as (?) the sound of thunder and the helmsman steered

    asked by Henry2
  343. Enriched College Writing

    I am reading an essay from Robert Bellah called, "Community, Commitment, and Individuality" and he mentions the phrase "community of memory and hope". What does he mean by this? Explaining it in simpler words would be very helpful! :) Thanks!!!!!!

    asked by Scarlet
  344. psy

    How do the major schools of psychology impact our daily lives? What are two of the main points of your Week 1 Foundations of Psychology Paper that you can apply to your life? How will you apply these aspects of psychology in your personal and professional

    asked by fvd