Questions Asked on
October 10, 2011

  1. Physics

    A tennis ball on Mars, where the acceleration due to gravity is 0.379 of a and air resistance is negligible, is hit directly upward and returns to the same level 6.20 later. (a)How high above its original point did the ball go? (b)How fast was it moving

    asked by Bojian
  2. Math Grade 3

    Write a subtraction problem involving regrouping that has ted reading 304 pages?

    asked by Hong
  3. physics

    Two positive charges, each of magnitude q, are on the y-axis at points y = + a and y = -a. Where would a third positive charge of the same magnitude be located for the net force on the third charge to be zero? a) at the origin b) at y = 2a c) at y = -2a d)

    asked by aichan
  4. physics

    the instruments attached to a weather balloon have a mass of 5.0 kg. the balloon is released and exerts an upward force of 98 N on the instruments. (a) what is the acceleration of the balloon and instruments? (answer is 9.8 m/s^2.. just don't know how to

    asked by tayler
  5. Chemistry

    Consider the following generic chemical equation 2A + 4B ¨ 3C What is the limiting reactant when 3 moles of A and 4 moles of B are allowed to react?

    asked by Anonymous
  6. calculus

    if F(x)=f(xf(xf(x))), where f(1)=2, f(2)=3, f'(1)=4, f'(2)=5, and f'(3)=6, find F'(1).

    asked by vicki
  7. calc

    A new software company wants to start selling DVDs with their product. The manager notices that when the price for a DVD is 16 dollars, the company sells 134 units per week. When the price is 27 dollars, the number of DVDs sold decreases to 89 units per

    asked by boob
  8. Anatomy

    what is the white matter tracts in the ventral portion of the midbrain?

    asked by Angelica
  9. Physics

    A golf ball is hit with a velocity of 24.5 m/s at 35.0 degrees above the horizontal. Find a) the range of the ball, and b) the maximum height of the ball

    asked by Joy

    At a certain temperature , 0.960 mol of SO3 is placed in a 3.50 L container. 2SO3 ----> 2SO2 + O2 At equilibrium , 0.190 mol of O2 is present. Calculate kc. i know that it starts off by 2SO3 -----> 2SO2 + O2 I 0.960 0 0 C -2x +2x x _____________________ E

    asked by Alexis Moran
  11. Science

    Which of the following pairs of elements would have the most similar chemical properties? A.Boron (B) and Fluorine (F) B.Hydrogen (H) and Helium (He) C.Beryllium (Be) and Magnesium (Mg) D.Carbon (C) and Oxygen (O)

    asked by Anonymous
  12. math

    1. Two roads intersect at an angle of 52.7 degrees, with a field in between. A girl is walking on one of the roads 1.5miles from their intersection. Her house lies 0.85 miles from the intersection along the other road. If she cuts across the field to her

    asked by gaurav
  13. Physics

    Compressed air is used to fire a 41.0 g ball vertically upward from a 1.0-m-tall tube. The air exerts an upward force of 3.7 N on the ball as long as it is in the tube. How high (in m) does the ball go above the top of the tube, assuming that the

    asked by Dan
  14. elementary statistics

    at a particular school with 200 male students, 58 play football 40 plays basketball and 8 plays both. what is the probablity that a randomly selected male student plays neither

    asked by dorothy
  15. Chemistry

    In a combination reaction, 2.22 g of Magnesium is heated with 3.75 g of Nitrogen a) which reactant is present in excess? b) how many moles of product are formed? c) after reaction, how many grams of each reactant and product are present?

    asked by Saige
  16. math

    In the triangle ABC ,AB=11 cm ,BC=9cm an CA=10 cm..Find area of the triangle ABC

    asked by Anonymous
  17. Physics

    Each of 108 identical blocks sitting on a frictionless surface is connected to the next block by a massless string. The first block is pulled with a force of 108N. What is the tension in the string connecting block 108 to block 107?

    asked by Josh
  18. chemistry 105

    Consider the following reaction: Li2S(aq)+Co(NO3)2(aq)-->2LiNO3(aq)+CoS(s) What volume of 0.150 M Li2S solution is required to completely react with 125 mL of 0.150 M Co(NO3)2?

    asked by julie
  19. World History

    On what basis were the Khmer people able to coalesce into a single large kingdom? A. Exploiting the flooding of the Mekong River B. Wealth from mining and timber C. Wealth from its trading fleet D. Development of its pottery industry

    asked by anonymous
  20. chemistry 105

    Complete and balance each of the following equations for gas-evolutions. Express answer as a chemical equation. Identify all the phases in your answer. HCl(aq)+K2SO3(aq)--> HCl(aq)+KHCO3(aq)--> HC2H3O2(aq)+NaHSO3(aq)--> (NH4)2SO4(aq)+KOH(aq)-->

    asked by julie
  21. chemistry 105

    Sulfuric acid dissolves aluminum metal according to the following reaction: 2Al(s)+3H2SO4(aq)-->Al2(SO4)3(aq)+3H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 14.7 g. What minimum mass of H2SO4(in g) would you need? What mass of H2

    asked by julie
  22. physics

    In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is 1.12 m. The mug slides off the counter and strikes the floor 2.00 m from the base of the counter.

    asked by Anonymous
  23. physics

    A box, open at the top, in form of a cube of edge length 40 cm, is constructed from a metal plate. Find the coordinates of the center of mass of the box with respect to x, y, and z coordinate system.

    asked by Karl
  24. World History

    The Emperor Charlemagne spread Christianity among the Saxons by A. excluding pagans from trade and commerce. B. giving pagans a choice of conversion or death. C. imposing taxes on those who didn't convert. D. by way of exemplary faith that set an example.

    asked by anonymous
  25. Physics

    You are holding a 5 kg dumbbell straight out at arm's length. Assuming your arm is 0.63 m long, what torque is the dumbbell exerting on your shoulder?

    asked by Darren
  26. geometry

    line BC in one side of a regular n-gon. the sides next to line BC are extended to meet at point W. Find the measure of angle W in terms of n.

    asked by Anonymous
  27. Government US

    35. All of the following are true of the Head Start program except that it a. began as part of the War on Poverty in the 1960s . CORRECT c. has been weakened by children’s unsupportive environments at home. I DON'T KNOW d. is fully funded at the present

    asked by HM
  28. Chemistry 105

    Which of the following reactions are redox reactions? 1. Al(s)+3Ag^+(aq)-->Al^3+(aq)+3Ag(s) 2. SO3(g)+H2O(l)-->H2SO4(aq) 3. Ba(s)+Cl2(g)-->BaCl2(s) 4. Mg(s)+Br2(l)-->MgBr2(s)

    asked by julie
  29. Physics

    An infinitely long line charge of uniform linear charge density λ = -3.00 µC/m lies parallel to the y axis at x = -2.00 m. A point charge of 4.70 µC is located at x = 1.50 m, y = 2.50 m. Find the electric field at x = 2.50 m, y = 2.00 m. I added the

    asked by Tom
  30. Calculus

    an observer stands 200 m from the launch site of a hot-air balloon. the balloon rises vertically at a constant rate of 4 m/s. how fast is the angle of elevation increasing 30 s after the launch.

    asked by Andres
  31. Math

    A turtle crawls up a 12 foot hill after a heavy rainstorm. The turtle crawls 4 feet, but when it stops to rest, it slides back 1 1/2 feet. How many tries does the turtle make before it makes it up the hill?

    asked by Mathew

    In a particular region of Earth's atmosphere, the electric field above Earth's surface has been measured to be 151 N/C downward at an altitude of 280 m and 167 N/C downward at an altitude of 430 m. Calculate the volume charge density of the atmosphere,

    asked by Tom
  33. Chemistry

    Balance each of the following redox reactions and classify it as a combination, decomposition or displacement reaction. a) Mg(s)+H2O(g)->Mg(OH)2(s)+H2 b) Cr(NO3)(aq)+Al(s)->Al(NO3)(aq)+Cr(s) c) PF3(g)+F2(g)->PF5(g)

    asked by Cassaundra
  34. physics

    A test car with a dummy driver of mass 60 kg was propelled towards a rigid wall. If the speed of the dummy driver just before impact was 40m/s and the time between the collision and the dummy coming to the rest was 0.10 s, calculate: (i) the average

    asked by Mah
  35. chemistry

    calculate how many mL of 6M HCL are needed to prepare 100mL HCL solution with a concentration of ~1M?

    asked by jj
  36. Physics

    Each of 108 identical blocks sitting on a frictionless surface is connected to the next block by a massless string. The first block is pulled with a force of 108N. What is the tension in the string connecting block 108 to block 107?

    asked by Josh
  37. physics

    A water slide is constructed so that swimmers, starting from rest at the top of the slide, leave the end of the slide traveling horizontally. As the drawing shows, one person hits the water 5.00 m from the end of the slide in a time of 0.386 s after

    asked by riley
  38. physics

    For women's volleyball the top of the net is 2.24 m above the floor and the court measures 9.0 m by 9.0 m on each side of the net. Using a jump serve, a player strikes the ball at a point that is 3.03 m above the floor and a horizontal distance of 8.4 m

    asked by Claudia
  39. physics

    what is the net force needed to lift a full grocery sack weighing 210N uniformly?

    asked by john
  40. physics

    the instruments attached to a weather balloon have a mass of 5.0 kg. the balloon is released and exerts an upward force of 98 N on the instruments. (a) what is the acceleration of the balloon and instruments? (answer is 9.8 m/s^2.. just don't know how to

    asked by tayler
  41. science

    Determine the slope of an area, given the following: Start measuring at 700 feet. Measure a distance of four miles, and end at an elevation of 2432 feet.

    asked by jayy
  42. physics

    shows a plot of potential energy U versus position x of a 0.310 kg particle that can travel only along an x axis under the influence of a conservative force. The graph has these values: UA = 9 J, UC = 20 J and UD = 24 J. The particle is released at the

    asked by Anonymous
  43. Physics

    A 2.3 kg steel block is at rest on a steel table. A horizontal string pulls on the block. The coefficient of static friction for steel on steel is 0.80 (page 163) while the coefficient of kinetic friction is 0.60 while the acceleration due to gravity is

    asked by Me
  44. Math

    Charlie estimated 293 - 44 and got a difference of about 250. Is this a reasonable estimate? Explain

    asked by dyne
  45. Physics help!!

    A truck travels beneath an airplane that is moving 120 km/h at an angle of 24◦ to the ground. How fast must the truck travel to stay beneath the airplane? Answer in units of km/h What is the magnitude of the vertical component of the velocity of the

    asked by Jem
  46. chemistry

    On an activity series for metals aluminum is more active than hydrogen. Write the correct reaction to describe putting a piece of aluminum foil (pure aluminum) in 100 mL of hydrochloric acid

    asked by bob
  47. Physics

    In a "Rotor-ride" at a carnival, people are rotated in a cylindrically walled "room." The radius of the room is 5.5 m, The coefficient of static friction is μ=0.1. What is the minimum rotation frequency such that the people will not slide down the wall

    asked by Alex
  48. physics

    Illustrate in diagram a force 150N is inclined a 50 to the horizontal direction find it component in the horizontal

    asked by Mohammad
  49. ap chem

    P4 + F2 = PF3 What mass of F2 is needed to produce 120 gm of PF3, if the reaction has 81.1 % yield?

    asked by Julie
  50. 5th Grade Match

    Writing in Math: Write a word problem using the number sentence 4.23 x 10 = 42.3. I don't understand how to answer this question

    asked by Anonymous
  51. physics

    A ball is thrown horizontally from a height of 18.18 m and hits the ground with a speed that is 4.0 times its initial speed. What was the initial speed?

    asked by chad
  52. Chemistry

    I have no idea where to even start with this problem on my pre-lab! For part of the experiment, you will need to prepare 100 mL of 0.025 M CH3CO2H, starting from commercial "glacial" acetic acid, which has a concentration of 17.4 M. This is best done by

    asked by Jen
  53. physics

    A shell is fired from a gun with a muzzle velocity of 466m/s at an angle of 57.4 degrees with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment, whose speed immediately after the explosion is

    asked by Kelly
  54. Chemistry

    Tartaric acid has two acidic (ionizable) hydrogens. The acid is often present in wines and precipitates from solution as wine ages. A solution containing an unknown concentration of the acid is titrated with NaOH. It requires 22.62 mL of 0.2000 M NaOH

    asked by Destiny
  55. chem

    a volume of 10.0 ml of a 0.00450 M solution of Cl- ions are reacted with 0.500 M solution of AgNO3.What is the maximum mass of AgCl that precipitates?

    asked by sam
  56. physics

    In ammonia (NH3) molecule, the three hydrogen atoms form an equilateral triangle, the distance between the centers of the atoms being 16.28x10^-11 m, so that the center of the triangle is 9.40x10^-11 m from each hydrogen atom. The nitrogen atom is at the

    asked by Brianna
  57. physics

    Traffic shock wave. An abrupt slowdown in concentrated traffic can travel as a pulse, termed a shock wave, along the line of cars, either downstream (in the traffic direction) or upstream, or it can be stationary. Figure 2-22 shows a uniformly spaced line

    asked by turk
  58. Science

    What waste disposal methods are available to humans and how might they be more effective. What initiatives or incentives could governments create to better equip citizens for managing their own waste?

    asked by Tameika
  59. psychology

    The observational learning approach states that stereotypes and prejudices are acquired through what? a)repressing of wants and needs excessively B)experiencing maturation of innate ideas C)watching and imitating a model’s behavior D)pairing conditioned

    asked by vedrana
  60. Science

    Would you normally expect neon (Ne) to form compounds? A. Yes, but neon is a rare gas and difficult to obtain. B. No, neon needs six electrons to fill its outermost level. C. Yes, neon needs six electrons to fill its outermost level. D. No, neon has eight

    asked by Anonymous
  61. Physics

    Two blocks are at rest on a frictionless, 20 degree incline. What are the tensions in the two strings if block 1= 5.3kg and block 2= 2.4kg?

    asked by Josh
  62. Chemistry

    When a 5.50g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee cup calorimeter, the temperature of rises from 21.6 degrees C to 37.8 degrees C. Calculate Change of heat for the reaction in kJ (also in kJ/mol NaOH) for the solution

    asked by Jennifer
  63. physics

    What is the minimum work needed to push a 950 kg car 890 m up along a 8.0 degree incline? Assume the effective coefficient of friction retarding the car is 0.22.

    asked by Luke
  64. Physics

    If you drop a 1.0 kg weight from a height of 1.0 m, how many joules of kinetic energy will it have when it reaches the ground? Can I use the equation for work: W = F*s to find the kinetic energy? Or would I have to find the velocity of the weight as it

    asked by Kyle
  65. PHYSICS HELP!!!!!

    A crate starts from rest and slides 8.35 m down a ramp. When it reaches the bottom it is traveling at a speed of 5.25 m/s. The ramp makes an angle of 20.0o with the horizontal. b) What is the coefficient of kinetic friction between the crate and the ramp?

    asked by Kayla L
  66. bussiness math

    A local Wal-Mart sells sweatpants ($7) and jackets ($14). If total sales were $6,160 and customers bought 8 times as many sweatpants as jackets, what would be the number of jackets sold?

    asked by Anonymous
  67. physics

    A car is traveling at a constant speed of 27.1 m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has a constant acceleration. What acceleration must it

    asked by abbie
  68. chemistry

    A laboratory has a 2.0-mol sample of pure selenium and a 2.0-mol sample of pure chromium. How many more grams of selenium than chromium does this represent?

    asked by Allison
  69. Government US

    Which of the following is true of social security and Medicare? a. Eligibility requirements make sure that all social security beneficiaries have an absolute economic need for the benefit. b. Spending on Medicare and social security exceeds the total of

    asked by HM
  70. Physics

    A Pratt and whitney PW4000 turbofan engine is able to provide a maximum thrust of 2.49 x 100000 N.A Boeing 747-400 airliner has four of these engines. If its mass is 2.72 x 100000 kg, what is its acceleration?

    asked by Mah
  71. physics

    A variable-speed drill, initially turning at 500 rpm, speeds up to 1300 rpm in a time interval of 0.8 s. What is its average rotational acceleration?

    asked by danny
  72. physics

    The power needed to accelerate a projectile from rest to its launch speed v in a time t is 48.0 W. How much power is needed to accelerate the same projectile from rest to a launch speed of 2v in a time of 1/2t

    asked by Acceleration
  73. physics

    A projectile is fired horizontally from a gun that is 45m above flat ground, emerging from the gun with speed 250m/s How long does the projectile remain in the air? At what horizontal distance from the firing point does it strike the ground?.What is the

    asked by Shanice
  74. algebra

    two buses leave at the same time. one travels west at 40 mph. the other goes north at 30 mph. When will they be 400 miles apart?

    asked by Nabil
  75. Chemistry

    Consider the following unbalanced reaction. P4(s) + F2(g) PF3(g) What mass of F2 is needed to produce 212 g of PF3 if the reaction has a 84.2% yield?

    asked by Cole
  76. Organic Chem

    Write a balanced equation showing the reaction of trimyristin and aqueous NaOH

    asked by Ruth
  77. English

    How is Arthur Miller connected to McCarthyism and the McCarthy trials?

    asked by Kelsie
  78. physics

    A cart loaded with bricks has a total mass of 27.7 kg and is pulled at constant speed by a rope. The rope is inclined at 23.7 ◦ above the horizontal and the cart moves 23.1 m on a horizontal floor. The coefficient of kinetic friction between ground and

    asked by edgar
  79. physics

    A vector representing 140 N is oriented at 42◦ with the horizontal. What is the magnitude of its horizontal component?

    asked by Tay
  80. Physics

    A hot air balloon is traveling vertically upward at a constant speed of 3.9 m/s. When it is 20 m above the ground, a package is released from the balloon. After it is released, for how long is the package in the air? The acceleration of gravity is 9.8 m/s

    asked by Ana
  81. Statistics

    In a murder trial in Los Angeles, a shoe expert stated that the range of heights of men with a size 12 shoe is 72 inches to 76 inches. Suppose the heights of all men wearing size 12 shoes are normally distributed with a mean of 73.5 inches and a standard

    asked by Michael
  82. physics

    A railway flat car is rushing along a level frictionless track at a speed of 45m/s. Mounted on the car and aimed forward is a cannon that fires 65 kg cannon balls with a muzzle speed of 625m/s. The total mass of the car, the cannon, and the large supply of

    asked by Alejandro
  83. bio

    Alternation of generations is defined as the switching back and forth between the production of: a. cells by mitosis and meiosis b. asexual and sexual reproductive cells c. gametophytes and saprophytes d. diploid and haploid cells MY ANSWER "A"

    asked by BOO!
  84. physics

    Because Earth's rotation is gradually slowing, the length of each day increases: The day at the end of 1.0 century is 1.0 ms longer than the day at the start of the century. In 58 centuries, what is the total (in hours) of the daily increases in time (that

    asked by turk
  85. Science

    what is the net ionic equation for: Mn+Ni(NO3)2 -> Mn(NO3)2+Ni Is the answer no reaction or is Nickel considered a state change??

    asked by Cassandra
  86. Chemistry

    When acetone, C3H6O, is oxidized via combustion, the following reaction can be envisioned. Balance this reaction and determine the total of the coefficients when added together.

    asked by Anonymous
  87. Precal

    Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. (If an answer does not exist, enter DNE. Round your answers to one decimal place. Below, enter your answers so that A1 is smaller than A2.)

    asked by Anonymous
  88. physics

    A cannon with a muzzle speed of 1008 m/s is used to start an avalanche on a mountain slope. The target is 1900 m from the cannon horizontally and 802 m above the cannon. At what angle, above the horizontal, should the cannon be fired? (Ignore air

    asked by tibby
  89. math

    open top rectangular box made from 35 x 35 inch piece of sheet metal by cutting out equal size squares from the corners and folding up the sides. what size squares should be removed to produce box with maximum volume.

    asked by Sejul
  90. social studies

    When Andrew became a Roman Catholic priest, making the vow of celibacy was difficult, but he remained true to his commitment. Andrew found along the way that he had a talent for sculpting and began creating exquisite pieces of religious art. Sigmund Freud

    asked by missy
  91. chemistry 105

    Complete and balance each of the following equations, some may have no reactions. NaNO3(aq)+KCl(aq)--> NaCl(aq)+Hg2(C2H3O2)2(aq)--> note that Hg(I)^+1 interacts with another Hg(I)^+1 ion to produce the cation Hg2^2+ (NH4)2SO4(aq)+CuCl2(aq)-->

    asked by julie
  92. Chemistry

    Recently I solved for how many mL of 5% BaCl2.2H20 solution was required to precipitate sodium sulfate. Now the question asks what if the sodium sulfate was potassium sulfate instead. Would the volume required be higher or lowered than the sodium sulfate

    asked by Mika
  93. world history

    What major problem did the Roman Empire face in the mid to late Fourth Century? A. Poor infrastructure B. Lack of education within the empire C. Weak leadership D. Immigration and invasion My answer is C.weak leadership?

    asked by anonymous
  94. Chemistry

    Copper (II) fluoride contains 37.42% F. Given this information, determine the mass of fluoride in 70.23 g of copper (II) fluoride.

    asked by Anonymous
  95. MATH


    asked by MAG
  96. physics

    A 1,000.0 Kg car with a speed of 90.0km/h brakes to stop. How many cal of heat are generated by the brakes as a result?

    asked by ANTOINE

    A flowerpot falls from a window sill 39.4 m above the sidewalk. What is the velocity of the flowerpot when it strikes the ground? The acceleration of gravity is 9.81 m/s 2 . Answer in units of m/s

    asked by Anonymous
  98. Government USA-Help

    According to survey data, a. Americans prefer money as the primary form of welfare assistance. b. most Americans believe that welfare recipients could get along without assistance if they tried. c. Americans prefer government jobs through government

    asked by HM
  99. science (optics)

    Explain why inverted imgaes are produced by the eye yet we see upright images. Thanks :)

    asked by pleasehelpme:)
  100. Physics

    The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.70 m and 0.99 m, respectively. The respective rotational speeds are 454 rev/min and 4,147 rev/min. Calculate the speeds of the tips of both rotors. main rotor

    asked by Allie
  101. Physics

    Two boxes on a horizontal surface, as shown in the figure above, are moving together under the influence of a horizontal force, F. The coefficient of kinetic friction between the boxes and the surface is 0.40. Use g = 10 m/s2. In case (a), a horizontal

    asked by Jeanne
  102. algebra

    a wire of 16 inches cut into 2 pieces. Each piece bent into a square. Find the length of the two pieces so the sum of the areas of the two squares in 10 square inches.

    asked by Nabil
  103. physics

    A truck covers 38.7 m in 6.4 s while smoothly slowing down to a final speed of 3.5 m/s. Find its original speed. Answer in units of m/s

    asked by Anonymous
  104. Physics

    What is the maximum total force exerted on a 78 kg astronaut by her seat during the launch of the Space Shuttle?

    asked by Richard
  105. writing expressions

    I need to write algebraic expressions: for these 6 sentecnces 1) four more shirt than s shirts 2) the quotient of p and 5 3) the sum of t tv's and 11 tv's 4) five times your quiz score q 5) nine cards fewer than e cards 6) divide the total points p by 3

    asked by marko
  106. Circular motion

    The drawing shows a version of the loop-the-loop trick for a small car. If the car is given an initial speed of 5.0 m/s, what is the largest value that the radius r can have if the car is to remain in contact with the circular track at all times?

    asked by Acceleration
  107. algebra write word phrase

    i have to write a word phrase for each expression 1) d+2 2) 4/n 3) c-91 4) 6.5 - h 5) 13 (w) 6) 10 + q 7) w/10 8) 3.5 (v) i WROTE: 1) the product of d dimes and 5 nickels 2) four divided by n 3) the total charges less 9.1 4) 6.5 less than h 5) thirteen

    asked by marko
  108. chemistry

    one reaction was between the aluminum and the leftover hydrochloric acid the products are aluminum chloride and hydrogen gas. the other reaction was the aluminum and the copper(II)chloride.. this produced aluminum chloride and copper metal. what was the

    asked by dianne
  109. problem of the week

    Imagine one large cube made of 1000 white centimeter cubes. Suppose the outside of the large cube was painted black. How many of the small white cubes would have the following? 1) 0 faces painted black 2) 1 face painted black 3) 2 faces painted black 4) 3

    asked by jefferson
  110. Healthy Life

    when playing outside,children shouldwear protective clothing and play in shdaded areas to? a)avoid radiation from sunlight b)avoid being stung or bitten by insects c)prevent attacks of scables d)stay coll and maintain psychological equilibrium

    asked by Mesha
  111. Chemistry

    What is the wavelength of a broadcast frequency of 992 kHz? -a nuclear magnetic resonance spectrometer frequency of 400 MHz -radiation that has a frequency of 5.2x10^14(s^-1)

    asked by Danielle
  112. Psychology

    Psychologists who believe in __________ are most likely to attempt to understand diversity in ethnic background as an influence on behavior. A) individual differences B) free will C) determinism D) universal principles I believe the answer is A) individual

    asked by Psychology
  113. chemistry

    If 9.20 g of sodium metal reacts with chlorine gas to make sodium chloride, how mnay grams of chlorine are required to react completely with the sodium?

    asked by Anonymous
  114. chemistry 105

    to what volume should you dilute 20 mL of a 10 M H2SO4 solution to obtain a 0.130 M H2SO4 solution?

    asked by julie
  115. Chemistry

    Regular-strength chlorine bleach is a 5.25% solution of NaClO. how many milliliters of 0.02005 M sodium thiosulfate will be required to reach the equivalence point in the titration of a 1.000ml sample of Bleach by reacting the ClO- ions with I, then

    asked by Jen
  116. Statistics

    An investment broker reports that yearly returns on common stocks are normally distributed with a mean of 12.4 percent and a standard deviation of 20.6 percent. (Round all k amounts to three decimal places. A negative sign should be used instead of the

    asked by Michael
  117. chemistry

    A chemist performed an experiment in which silver nitrate was used to precipitate all of the chromate ion as silver chromate, Ag2CrO4 from 200 mL of a solution of potassium chromate, K2CrO4. This process required 120 mL of 0.200 M AgNO3. Write the balanced

    asked by stephanie
  118. Financial Apps Algebra

    the fixed costs of producing a wild widget are $34000. the variable costs are $5.00 per widget. what is the average cost per widget of 7000 wild widgets? round to the nearest tenths.

    asked by Elya
  119. Physics help!!

    A descent vehicle landing on the moon has a vertical velocity toward the surface of the moon of 35.4 m/s. At the same time, it has a horizontal velocity of 57.2 m/s. At what speed does the vehicle move along its descent path? At what angle with the

    asked by Jem
  120. Calculus

    an observer stands 200 m from the launch site of a hot-air balloon. the balloon rises vertically at a constant rate of 4 m/s. how fast is the angle of elevation increasing 30 s after the launch.

    asked by Andres
  121. World History

    In forming his government, Asoka recruited what group to serve as bureaucrats? A. The military elite B. Traditional Brahman elites C. The Buddhist clergy D. The rising merchant class -I have chosen answer B. Do you agree or disagree?

    asked by anonymous
  122. chemistry

    could the quantitative precipitation be useful to determine the mass percent of copper in a sample that also contains magnesium ions?

    asked by ana
  123. math

    Erica was searching for her sunglasses.she walked 2 blocks north,3 blocks south,4 blocks east, and 3 blocks west.How many blocks did she walk?How far is Erica from where she began her search?

    asked by hasan
  124. POW#4 Read MY Mind

    I am thinking of a three-digit number. It is an odd multiple of three, and the product of its digits is 24. It is larger than 15 squared. What are all the numbers that I could be thinking of?

    asked by Linda
  125. Physics

    A man of mass 75.5 kg walks down the aisle of an airplane at a speed of 1.50 m/s in the forward direction while the plane moves at a speed of 305 m/s relative to the earth. (a) Find the man's kinetic energy relative to the plane. (b) Find the man's kinetic

    asked by Kellie
  126. Physics

    An object m of mass m=1kg is attached to a string that passes through a hole in the center of a table. The object m moves in a circle of radius r=1.3m. An object M of mass M=2.1kg is tied to the other end of the string, and hangs vertically beneath the

    asked by Alex
  127. chemistry 105

    to what volume should you dilute 20 mL of a 10 M H2SO4 solution to obtain a 0.130 M H2SO4 solution?

    asked by julie
  128. physics

    Problem 25.52 A 100-turn, 2.0-cm-diameter coil is at rest in a horizontal plane. A uniform magnetic field 60 degrees away from vertical increases from 0.50 T to 1.50 T in 0.60 s . Part A What is the induced emf in the coil? Express your answer using two

    asked by Paige
  129. calculus

    air expands adiabatically in accordance with the law PV =cost. pound per square inches ,at what rate is pressure changing when the volume is decreasing 1 cubic per second?

    asked by jay
  130. physics

    A ferry is crossing a river. If the ferry is headed due North with speed of 2.5m/s relative to the water and the river's velocity is 3 m/s to the east, what will the boat's velocity be relative to Earth?

    asked by Sam
  131. bio

    Which of the following is NOT true of amoebas? a. They reproduce by binary fusion. b. They move by pseudopodia. c. They have a definite shape. d. They form temporary food vacuoles.

    asked by BOO!
  132. Chemistry

    When a mixture of 10.0 g of acetylene and 10.0 g of oxygen is ignited, a complete combustion of the reactants takes place. What is the limiting reagent of this reaction? How many grams of each of the reactants and products are present at the end of the

    asked by Destiny
  133. Physics

    A box with a mass of 7.00 kg is at rest on a ramp that is at an angle of 20 degrees with the horizontal. The coefficient of static friction between the box and the ramp is 0.800. Use g = 9.80 m/s2. You now want to make the box move by applying a force. To

    asked by Jeanne
  134. algebra 2 word problems

    1) the marching bad is selling cases of fruit for $11 a case. Write an algebraic expression for the total sales in dollars of c case. i wrote: $11e 2) your job pays $7 per hour. Write an algebraic expression for your pay in dollars for working h hours i

    asked by marko
  135. psychology

    Researchers have found that, during childhood: A) girls' gender schemas are more rigid than boys' gender schemas. B)when boys play with girls, the boys lose status. C)boys like it when girls dress and behave like boys. D)girls express stronger preferences

    asked by missy
  136. 11Music

    How could I describe Mozart's music using the elements of music? I want to explain the dynamics, rhythm, pitch and harmony.

    asked by Rebecca
  137. College Chem

    Write a balanced equation for each reaction including the state symbols of all the reactants and products Co(NO3)2. 6H2O + Ni(NO3)2.6H2O

    asked by Sarah
  138. economics

    Suppose that in this city, the price of a spaghetti dinner changes from $10 to $15. Which of the following statements correctly describes what happens in the calculator? I. There is a reduction in the number of dinners that people buy. II. There is a

    asked by mikku
  139. MAth translate please thx

    If 5 times the smaller of two numbers is subtracted from twice the larger the result is 16. If the larger is increased by 3 times the smaller, the result is 63. Find the numbers.

    asked by Tiffany
  140. Engineering Economics

    Sales of bottled water in the U.S totaled 16.3 gallons per person in 2004. Water costs .40 cents per bottle.A municipal company provides tap water for $2.10 per 1000 gallons. If the average person drinks two bottles of water per day or uses 5 gallons per

    asked by Margie
  141. College Organic Chem

    1)what is the name of the common commercial chemical that is always obtained from the reaction of fats and strong bases such as NaOH and KaOH. 2)What is a physical property that you can tell the difference between glyceryl trimyristate abd myristic acid

    asked by Anonymous
  142. Science question help homework.

    What threadlike structures contain the instructions for running a cell?

    asked by Losa
  143. AP Chem

    I'm having trouble balancing these two oxidation-reduction reactions that occur in a basic solution. Can anyone help? Please? The numbers after the formulas are subscripts and any with a minus sign means they are negatively charged (-1). Thanks!! Al(s)+

    asked by rose
  144. Statistics

    The daily water consumption for an Ohio community is normally distributed with a mean consumption of 750,000 gallons and a standard deviation of 80,000 gallons. The community water system will experience a noticeable drop in water pressure when the daily

    asked by Michael
  145. physics

    A 0.105-kg hockey puck moving at 30 m/s is caught and held by a 80-kg goalie at rest. With what speed does the goalie slide on the ice?

    asked by kodi
  146. Organic Chem

    Write the balanced equation for dibenzalacetone and benzoic acid

    asked by Ruth
  147. fsu

    Red light has a wavelength of 691 nm. Convert this wavelength to meters.

    asked by dexter
  148. trigonometry

    the length of a rectangle is 2cm longer than the width. if its length and width are both increased by 4cm, its area is increased by 72 cm^2. find the dimensions of the original rectangle.

    asked by lesley
  149. Math

    Construct a grouped frequency distribution for the following 28 scores using a class width of 4: 64 63 58 46 52 62 47 49 56 47 43 41 45 51 60 62 51 61 50 55 56 53 54 58 48 48 58 46 How do I do this?

    asked by Jen
  150. Chemistry

    75.0 claories of heat were added to 50.0 ml of water, the initial temperature of the water being 25.0 celcius. What is the final temp. of water?

    asked by Anonymous
  151. physics

    An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp. He was supposed to travel due north for 5.7 km, but when the snow clears, he discovers that he

    asked by turk
  152. Math

    (93.789 - 5.40) x 18.057 = answer should be in proper # of SF My answer is 1596.040173 But my choices are A)1596,B)1600,C)1596.239,D)1590,E)1596.2 So would the answer be 1590 because of the 3 SF Thank You!

    asked by Connie
  153. trig

    Consider the angle in standard position whose measure is radians. The terminal side of this angle is in the third quadrant and lies on the line given by y=10x. Find sin and cos.

    asked by yo
  154. Physics

    A hovercraft of mass 77.0 kg can move on a horizontal surface, the x-y plane. A single unbalanced force acts on the hovercraft, but the size of the force is unknown. The hovercraft initially has a velocity of 6.0 m/s in the positive x direction and some

    asked by Suzy
  155. Calc

    Find the areas of the regions bounded by the lines and curves by expressing x as a function of y and integrating with respect to y. x = (y-1)² - 1, x = (y-1)² + 1 from y=0 to y=2. I graphed the two functions and the do not intersect? Does it matter? Or

    asked by Erica
  156. physics

    (a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 8.86 m/s when going down a slope for 3.30 s? (b) How far does the skier travel in this time?

    asked by abbie
  157. Government US

    The primary reason that the existence of Social Security greatly lessens the demand for other forms of social welfare is that a. Social Security is so popular that many people believe other welfare programs are neither necessary nor desirable. WRONG b. the

    asked by HM
  158. Physics

    Let vector A = 4i^ + 4j^, vector B = -2i^ - 5j^, and vector F = vector A - 5(vector B). a) Write vector F in component form. vector F = ? b) What is the magnitude of vector F? F = ? c) What is the direction of vector F? theta = ? Thank you!

    asked by Sara
  159. College Physics

    The driver of a 1600 kg car, initially traveling at 10.6 m/s, applies the brakes, bringing the car to rest in a distance of 23.0 m. (a) Find the net work done on the car. (b) Find the magnitude and direction of the force that does this work. (Assume this

    asked by Suzy
  160. World History

    A major problem in relations between Israel and the Arab states was the a. resettlement of Palestinian refugees. b. failure to develop trade agreements. c. status of Jerusalem as an open city. d. level of influence Great Britain still exercised. A?

    asked by Lily
  161. Organized Crime

    The Yakuza vs. The Triads What accounts for the differences in perception and portrayal between these two criminal organizations. Furthermore, how do they compare to their Italian-American organized crime counterparts? Can you think of any other examples

    asked by Anonymous
  162. Physics

    The Republic of Singapore Air Force uses the AIM-9 Sidewinder air-to-air missile which has a mass of 85.6kg. If the missile can accelerate from 300m/s to 700m/s in 6 seconds, what is the average force exerted on the missile?

    asked by Mah
  163. physics

    A piece of copper is made into a rod with a square cross-section. The side of the square is 2.00 centimeters. The resistivity of copper is 1.7 \cdot 10^{-8} \Omega\cdot {\rm m}. An unknown electric field E, directed along the rod, creates a current of 12.0

    asked by tom
  164. algebra write word phrase

    i have to write a word phrase for each expression 1) d+2 2) 4/n 3) c-91 4) 6.5 - h 5) 13 (w) 6) 10 + q 7) w/10 8) 3.5 (v) i WROTE: 1) the product of d dimes and 5 nickels 2) four divided by n 3) the total charges less 9.1 4) 6.5 less than h 5) thirteen

    asked by marko
  165. Math - translate (please check)

    4. The sum of two numbers is 50. If twice the larger is subtracted from 4 times the smaller the result is 8. Find the numbers is it this x+x(2x-4=8)=50

    asked by Tiffany
  166. English

    Hi, I'm writing a paper for English and my professor crossed off the authors name in one of quotes for the citation of my rough draft as if it was suppose to be there. Something like xxxxxxxxxxxxxxxxxxxxxx (john 59) and she crossed off john as if I wasn't

    asked by Jhon
  167. physics

    The Earth moves toward you through what distance? (Assume the seat is 45.0 cm high.)

    asked by Anonymous
  168. World History

    Since independence, in most Latin American countries a. elected governments have been overthrown by a military coup'etat. b. elected governments have continued to function peacefully. c. Socialist governments have come to power in most countries. d.

    asked by Lily
  169. English

    The politician has a large (amount, number) of supporters. a. amount b. number I would say Number. I just need a heads up..

    asked by HM
  170. Physics

    Two football players start from rest, 12 m apart. They run directly towards each other, both players accelerating. The first player has an acceleration of 5 m/s^2 and the second has an acceleration of 4 m/s^2. a) how much time passes before they collide?

    asked by Courtney
  171. Scientific Notation

    I'm having some trouble solving this problem: 32x10^2 / (4x10^2)^3 Is it possible to have a negative value in scientific notation?

    asked by Maria
  172. vectors

    The summit of a mountain, 2075 m above base camp, is measured on a map to be 4585 m horizontally from the camp in a direction 32.4° west of north. Choose the x axis east, y axis north, and z axis up. What are x, y, and z?

    asked by Millie
  173. chemistry

    there are 2 reactants copper(II) oxide and hydrochloric acid the products are copper(II)chloride and water. what change will you observe in the copper(II)oxide? was there a change in solubility? where is the copper(II)chloride? how can you tell

    asked by dianne
  174. Math

    What is the sequence of conversion factors for units if you change from ft/sec. to km/hour? Is it ft/sec x sec/min x min/hour x ft/m x km/m?

    asked by Connie
  175. algebra help write expression

    I need to write algebraic expressions: for these 6 sentecnces 1) four more shirt than s shirts 2) the quotient of p and 5 3) the sum of t tv's and 11 tv's 4) five times your quiz score q 5) nine cards fewer than e cards 6) divide the total points p by 3

    asked by marko
  176. Chemisty

    Calculate the % error of an experiement if a student obtained a destiny of 1.23g/ml(predicted) and the actual value was 1.30g/ml

    asked by Vic
  177. algebra

    Amy, beth and Carla are solving a quadratic equation. Amy misreads the constant term and finds the roots 8 and 2. Beth misreads the coefficient of x and finds roots -9 and -1. Carla solves it. What are Carla's solutions?

    asked by Anissa
  178. Physical Science

    a.Calculate which one of the reactants will be used up if 20g of Fe is mixed with 10g of S and heated. b.How many grams of the other reactant were in excess?

    asked by Heather
  179. algebra


    asked by JOSH
  180. writing

    I have two coins. Their sum is $0.55. One of them is not a nickel. What coins do i have?

    asked by sophie
  181. world history

    Women were able to own property and hold paying jobs in which empire? A. Asoka's India B. Greece C. Rome D. Persia My answer is B. Greece do you agree or disagree?

    asked by anonymous
  182. Math-Stats

    An insecticide company exposes 10,000 cockroaches to its newest product, and exposes another 10,000 to their previous formula. The researchers use videotape to count how many cockroaches are still alive, and how many appear to be in distress, at 10 second

    asked by Jen
  183. College Physics

    A students stands at the top of a high vertical cliff and throws calculators into the sea. He throws the calculators horizontally with a speed of 7.4 m/s and observes that each reaches the water below 3.7 s after the release. Neglect air resistance and

    asked by Stephanie
  184. English

    Is this okay for a introduction essay on a thesis statement................ Mary Cassatt was an American painter and printmaker. Known to this day as a “painter of mothers and children” She did paintings of Impressionism to record visual reality.

    asked by Anonymous
  185. Pre-Calculus

    Could someone help me with this-we learned this today in school but I'm not getting it now that I'm home with my homework-I have lots of these to do can someone help with this one and then maybe it'll click-thank you Find (sqrt3/2 -1/2i)^4 by using

    asked by Anne
  186. Calculus

    A particle moves along the x-axis with velocity v(t) = -(t-3)² + 5 for [0,6]. a) Find the average velocity of this particle during the interval [0,6]. b) Find a time t* ∈ [0,6] such that the velocity at time t* is equal to the average velocity during

    asked by Erica
  187. education

    in the second circle of hell(canto v), where the lustful or carnal are punished, what beautiful woman from the ilad and what beautiful woman from the aenield both appear?

    asked by jan
  188. physics

    In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed of 8.49 m/s in 1.89 s. Assuming that the player accelerates uniformly, determine the distance he runs.

    asked by abbie
  189. algebra

    length of rectantular rug is 7/6 its width. rug is placed on floor with 1 foot margin all around. area of floor is 4 times that of margin. find the dimensions of the room.

    asked by Sejul
  190. Chemistry

    During a reaction, you see that the heat (q) given off is 4.6 cal calories. Knowing that you used a mass of 100 g and that the temperature change was 7.85°C, what is the specific heat of this reaction?

    asked by Tori
  191. algebra

    height of a projectile thrown straight up from top of 480 ft hill t seconds after bing thrown up with initial velocity vo ft/s is h = -16t^2 +vot + 480 If vo = 96, find times when the projectile will be at a) height of 592 ft above the ground and b) crash

    asked by Nilan
  192. Math

    How do you do asymptoes or what ever you call them? and how do you do the equations for the different graphs for transformation?

    asked by mai
  193. maths pls help urgent

    A supermarket had an equal number of bottles of shampoo and conditioner. After selling 82 bottles of shampoo and 178 bottles of conditioner, the no. of bottles of conditioner was 1/5 of the bottles of shampoo left. How many bottles of shampoo were left?

    asked by jiejie
  194. history project

    I need to know these questions What is Immigration? Why did immigration happen? How did immigration happen? When did immigration happen? Where did immigration take place? and Who was involved in it? please help me

    asked by maryam
  195. physics please help!!

    A 0.267kg ball is thrown straight up from 2.20m above the ground. Its initial vertical speed is 9.20m/s. A short time later, it hits the ground. Calculate the total work done by the force of gravity during that time.

    asked by archi
  196. chem

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

    asked by selina

    I love chocolate and coffee. I begin by making one cup of hot chocolate. I drink half of my cup and then I fill the cup with coffee. I stir the new mixture and drink half of the cup and then fill the cup again with coffee. I continue this pattern until I

    asked by Help Please
  198. English

    1. We know him to live in New York. 1-1. He is known to live in New York. 2. We know him to be living in New York. 2-2. He is known to be living in New York. (What is the difference between #1 and #2?)

    asked by rfvv
  199. Science

    Suppose you had two samples of the same radioactive isotope one that weighs 25g and one that weighs 50g would the same number of particles be ejected from each sample in the first hour,explain.

    asked by Anonymous
  200. algebra

    Find the max or min value for y given the restictions on x. y= x^3 -x^2 -6x a) 0

    asked by Anissa
  201. algebra

    x2-2x-13=0 I need square root on both sides.

    asked by old me
  202. Chemistry

    During a reaction, you see that the heat (q) given off is 4.6 cal calories. Knowing that you used a mass of 100 g and that the temperature change was 7.85°C, what is the specific heat of this reaction?

    asked by Tori
  203. Chemistry

    Is BCI3 polar or non polar ,identify the negative ends

    asked by Danny
  204. MATh ( translate words into number)

    40. The greater of two numbers is 1 ore than twice the smaller. Three times the greater exceeds 5 times the smaller by 10. Find the numbers. How do i start please explain. WHere do i start and how to do do this. AM very confused.

    asked by Tiffany
  205. Thomas Pullen

    it is greater than 30 and less than 40 ifyou add the digits, the sum is 10.

    asked by kaday jarra
  206. Social studies

    Can you please list so reason why the Reformation of the 16th century was a religious movement?

    asked by Kevin
  207. chemistry

    what is the molality of 12.5 solvation of glucose i water?The molecular weight of glucose is 180.00

    asked by mirazol
  208. science

    An average diameter of a star is approximately 109 m and an average diameter of a galaxy is 1021 m. Considering the given data, apply a sense of scale calculation to determine if when a galaxy’s diameter is scaled down to the length of Manhattan (21.6 km

    asked by Aly
  209. math

    Assume r and s are the roots of the quadratic equation ax^2 + bx + c = 0, show that r + s = -b/a and rs = c/a.

    asked by Sushmitha
  210. Government USA-Help

    27. Welfare policy in the United States a. is an issue that often divides the two political parties. b. is based entirely on the principle of need. I am sure about B but why can't it be A ?

    asked by HM
  211. budgeting

    Another term for disposable income is _______income A.spendable B.gross C.taxable D.earned i got A

    asked by Ciara
  212. chemistry

    How many moles of O2 are needed to form 3 moles of Al2O3 from the element

    asked by monique
  213. Physics

    An object of mass 1.4kg is placed 11.5 cm from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the object remains fixed on the turntable until a rate of 37 rpm is reached, at which point the object

    asked by John
  214. Art

    Is there any art websites I like drawing, painting, collage computer art, manga drawings, fashion designs, & drawing cute doodles

    asked by Laruen
  215. writting

    looking for help with apostrohe catastrophe in the following it is, use_________. if not,use_______ there is, use______. if not,use_______ who is, use________. if not, use______ they are, use______. if not, ____ or __ you are, use_______. if not,

    asked by abby
  216. Chemistry

    A decomposition reaction is one in which a reactant decomposes to a limiting reactant and a theoretical reactant. True or False

    asked by Anonymous
  217. chemistry

    If a person runs 1.87 meters per second, how many minutes will it take for them to complete a 5.0 kilometer race

    asked by Anonymous
  218. Chem112

    1ml 0.1M HCl 99ml 1.4M acetic What is the pH of the two?

    asked by Dominique
  219. Cultural Diversity

    I have to identify and describe which, if any, of the following creation and consequence situations the group has faced: (I chose african americans) · Creation: migration, annexation, or colonization · Consequences: extermination, expulsion, secession,

    asked by KIm
  220. chemistry

    What is the mass of hydrogen peroxide, H2O2, in a 250 g sample of a 2.75% by weight solution?

    asked by Anonymous


    asked by NICK C
  222. physics

    A women walks 2m in the direction 60degrees north of east. find her final displacement.

    asked by kei c
  223. Calculus

    Define the quotient rule.

    asked by Jade
  224. algebra


    asked by Bibi
  225. Math

    A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a.

    asked by Jen
  226. Math help please

    factor 50x^2-72

    asked by ariel
  227. trigonometry

    the length of a rectangle is 2cm longer than the width. if its length and width are both increased by 4cm, its area is increased by 72 cm^2. find the dimensions of the original rectangle.

    asked by lesley
  228. writing

    As a rule of thumb ,experts say most married people should carry____times their net pay in life insurance coverage. A.2 B.3 C.4 D.5 i got C

    asked by Ciara
  229. math

    ball thrown up from top of 96 foot high tower with initial velocity of 80 ft/s. when does ball reach max height and how high is it at that time?

    asked by BK
  230. English

    Thank you. Do you say "he will become Thane of Cowdor OR the Thane of Cowdor? I looked up prophesy in the dictionary and found out that it can be both a noun or a verb. (to Prophesy: to say what will happen in the future, especially using religious or

    asked by Henry
  231. Calc

    an observer stands 200 m from the launch site of a hot-air balloon. the balloon rises vertically at a constant rate of 4 m/s. how fast is the angle of elevation increasing 30 s after the launch.

    asked by Andres
  232. Science

    The global water cycle provides renewable water, but a number of factors affect how much freshwater is available for human consumption. Describe these factors and circumstances. When do human interventions in water availability pose serious problems to

    asked by Tameika
  233. business

    In this exercise pick a sector – e.g. food retailing, airlines, chemicals, public administration – and draw a map of their particular version of this process. How does it work out in practice? Where are they likely to need or to place most emphasis?

    asked by klint
  234. Physics

    You swing a 3.24-kg object in a vertical circle of radius 0.920 m. The speed of the object at the top of the circle is 3.25 m/s; the speed of the object at the bottom of the circle is 6.90 m/s. Find the tension in the rope tied to the object at: a) The top

    asked by John
  235. writing

    Freedom Doesn’t Come Free What is something you can never show much gratitude for? Well, veterans have done many wonderful things for our country, especially freedom. Freedom is a debt that can we can never repay veterans for. One reason I said they

    asked by sophie
  236. The Yakuza (Opinion)

    The presence of the Yakuza is still prevalent in modern Japanese society and culture. However, there are many people who want to get rid of the Yakuza in spite of their prevalence - seeing their existence as harmful and detrimental to the Japanese image.

    asked by Anonymous
  237. Chemistry

    A chemist has 250.0 mL of a bright blue (caused by Cu+2) aqueous solution that contains 21.16 g of CuCl2. He adds 12.0 g of finely ground silver to the blue solution and lets the solution sit covered overnight. When he returns he finds:

    asked by Anonymous
  238. maths help plz

    A computer table, 4 bar stools and a cabinet costs a total of $352. Each bar stool costs 1/5 as much as the computer table. The cabinet costs $40 less than the table. a)How much is the computer table b)What is the difference in the cost between the cabinet

    asked by jiejie
  239. math

    When is an exact number needed and when is an estimate okay?

    asked by megan
  240. algebra

    GRAPH .08.04.11

    asked by ROBBIE
  241. English

    How can I write a one paragraph introduction essay on a thesis statement? Thank you

    asked by Anonymous
  242. world history

    The animating principles of Benedict's rules for monks are the quest for salvation and A. the application of personal resistance to God's work. B. the subordination of willfulness. C. knowledge obtained solely through communion with God. D. extremes of

    asked by anonymous
  243. social studies

    Children whose parents encourage them to use gestures in their development of communication: A)ave difficulty mastering a large vocabulary. B)have better comprehension. C)are frustrated in their communication. D) watch people's gestures more than they

    asked by missy
  244. Precalculus

    Can an even degree polynominal have exactly one x intercept?

    asked by Britt
  245. Math

    How do I solve for negative modular arithmetic? Here is an example: -45 mod 13 = 7, but how?

    asked by Francesca
  246. Probability

    Consider an RV X with the following density given parameters α and γ . f (x) = {(1/γ)e^(-(x-α)/γ) if x>α {0 if x ≤ α. a. Find E[X]. b. Find V[X]. c. If α = 4, γ = 2, find P (X > 8). d. Find P (X < α + 3γ ). e. Find the cdf for X , F (x).

    asked by Molly
  247. Probability

    Let Y be a Normal RV with mean 7 and standard devi- ation 4. a. Find P (Y = 7). b. Find P (Y < 5). c. Find P (Y ≥ 10). d. Find P (Y < 0). e. Find E[Y].

    asked by Molly
  248. chemistry

    what quantity of heat is rewuired to raise the temperature of 15g of iron from 0 degrees celsius to 100 degrees celsius?

    asked by lola
  249. Application problems with fractionsþ

    Cheryl is fitting a turquoise stone into a bear claw pendant. Find the diameter of the hole in the pendant. (The diameter, which is 7/8 inches, is the distance across the center of the hole. The two areas outside the hole are 3/16 inches in length.)

    asked by Alex L.
  250. Calc

    Recall that the acceleration a(t) of a particle moving along a straight line is the instantaneous rate of change of the velocity v(t); that is, a(t) = d/dt v(t) Assume that a(t) = 32 ft/s². Express the cumulative change in velocity during the interval [0,

    asked by Erica
  251. maths.reposting as i need a non algebraic way to s

    A computer table, 4 bar stools and a cabinet costs a total of $352. Each bar stool costs 1/5 as much as the computer table. The cabinet costs $40 less than the table. a)How much is the computer table b)What is the difference in the cost between the cabinet

    asked by jiejie
  252. math

    radiators sell for $350. Let x be radiators. profit shown by equation p= -.01x^2 +375x -600,000. What number of radiators will produce the larget possible profit? What is the largest possible profit?

    asked by Sejul
  253. geography

    Can you check my answers please? 1. Which country has the largest land area in the world? The U.S.A. 2. Which ocean is larger, the Arctic or the Indian? The Indian Ocean 3. Beijing is to China as Washington D.C. is to the Inited States. We had to fill in

    asked by Reed
  254. English

    Does Miss and Ms. fit under the category of homonyms or homophones, or are they under another category?

    asked by Nicole


    asked by NICK C
  256. Math

    If there are 9 flavors of ice cream and each student orders 2 scoops with noone getting the same order - how many students are there?

    asked by Colleen
  257. English

    which of the following should you not do in the close of a job interview? A. give a final explanation for a weakness that you have. B. show enthusiasm for the job. C. summarize your accomplishments and strengths. D. smile and relax

    asked by Donna
  258. math

    A person gave bags of jellybeans to 11 students. The mimimum was 8 maximum was 21, mode was 14 and median was 15. What was the number of jellybeans each student could have reported to get the landmarks given

    asked by Patty
  259. p

    Toddlers are able to: A)understand, but not conform to, cultural rules of gender. B)know that a boy stays a boy even with long hair. C)have strong gender identities but not be gender typed. D)label themselves as either boys or girls. I chose A which it

    asked by missy
  260. algebra

    _______________________________________ MATH133 Unit 1 Individual Project 2 A 1) The following graph shows the depreciation for the corporate airplane from 2006 to 2009. The plane was purchased new in 2006; therefore, x = 0 represents the year 2006. X –

    asked by Michelle
  261. Home Insurance

    Disabilty insurance is desighned to replace : A : damaged property B : loss or damage to property C : money damages awarded in a law suit against you. D : lost income. I got B.

    asked by Ciara
  262. math

    what are the first 12 multiples of 7,9,3 ?

    asked by sunshine
  263. math

    one number is 15 more than one third of another number. together the two numbers are 35. find the numbers.

    asked by jessie
  264. Calculus

    Could someone please help me on this question where you find the limit. I'm having a test tomorrow and I'm a little confused. lim -x/√(4-x^2) x-->-2+ Any help would be greatly appreciated. Thanks in advance!!

    asked by Eric
  265. geometry

    given the measure of angle 1=4x+30 and the measure of angle 3=2x+48 then X=?

    asked by Leesha
  266. cja 105

    Chief Draper has noticed that the behavior of many of his officers reflects a lack of understanding of many basic criminal justice concepts. Last week, he received a complaint about a patrol officer with ten years of experience on the force. The complaint

    asked by tanya
  267. Government US

    30. Which of the following social welfare programs was supported by a majority of congressional Republicans at the time of enactment? c. the 1965 Medicaid program e. None of these answers is correct. I would say none, since the republicans never supported

    asked by HM
  268. Math

    (93.789 - 5.40) x 18.057 = answer should be in proper # of SF My answer is 1596.040173 But my choices are A)1596,B)1600,C)1596.239,D)1590,E)1596.2 So would the answer be 1590 because of the 3 SF Thank You!

    asked by Connie
  269. English

    Can some check my personal narrative and give a grade from 1-5? Mario Garcia 10-10-11 Period.3 The Lost Dog I didn’t feel like helping my sister wash my dad’s car. After our dog left this morning we were both sad, we didn’t feel like doing anything

    asked by Mario
  270. math

    The fuel rods for a certain type of nuclear reactor are bundled into a cylindrical shell. Consider this cross-section showing 19 identical fuel rods: a) If the diameter of the cylindrical shell is 12.35 cm, calculate the shaded area of the cross-section.

    asked by gaurav
  271. science

    A football spends a total of 5 seconds in the air. It reaches a peak height of 20 meters. How long does it take to reach its peak height?

    asked by lyndell
  272. Binders

    What sub tabs I can put into my binders for school & my elective binder ?

    asked by Ciara
  273. Calculus

    solve this equation on the given interval expressing the solution for x in terms of inverse trigonometric functions. 6(cosx)^2-cosx-5=0 on (pie/2, pie)

    asked by Josh
  274. maths urgent help!

    The average mass of 2 durians and 3 apples is 1.85kg. The average mass of 3 durians and 3 apples is 1.92kg. What is the mass of 1 durian?

    asked by jiejie
  275. environmental science

    I need some help coming up with ideas for this topic: What are some pros to allowing private logging companies to thin federally owned forests? Cons?

    asked by Sam
  276. English

    Good afternoon. My english professor wants me to give an example of highbrow, lowbrow and middlebrow from another art form - such as music, film or dance. Can you help me out I have no idea what this means. Thank you

    asked by Anonymous
  277. Chemistry

    How many grams of Calcium Chloride can be formed by reacting 50.05 g of Calcium carbonate with 900.00 ml of .8000 M hydrochloric acid

    asked by Anonymous
  278. Chemistry

    A solution of HCL whose pH=2.010 was added to neautralize a 40.00 ml solution of KOH, the molarity of KOH is .2567 M. How many mls of HCl were required?

    asked by Anonymous
  279. chemistry

    The density of sample measurements taken by a tech are: 0.810g/mL, 1.375g/mL, 2.046g/mL. The Actual density is 1.027g/mL. Are these measurements by the tech. precise accurate or neither or both Is the correct answer: Neither??? Thanks,

    asked by Connie
  280. english

    I need to do a summary paragraph on a ediorial in a newspaper or magazine .and i don't were to start in writing the paragraph and the subject i choose waw sex,slavery in america on one girls nightmare

    asked by catherine
  281. algebra

    cannon fired ffrom top of 50 ft hill. height of shell above water: h = -0.0000167x^2 + 0.23x + 50 where x is horizontal distance from the foot of the hill to a point directly under the shell. How high does the shell go, and how far away does it hit the

    asked by Sushmitha
  282. algebra

    for every point (x,y) which is in the first quadrant and is on the graph y = 24 -4x^2, consider the rectangle with corners (-x,0), (-x, y), (x,0) and (x,y). for which value of x does the rectangle have maximal area?

    asked by Nabil
  283. physics

    A ball is thrown vertically upward with a speed of 27.3 m/s from a height of 2.1 m. How long does it take to reach its highest point? The acceleration of gravity is 9.81 m/s2. Answer in units of s

    asked by Anonymous
  284. college easy physics

    Help me out with 2 multiple questions!!!!!!!!!!!!!!!!! ASAP please What is flux in general? 1. A flow of energy, so heat is an example of flux. 2. Flowing matter such as a river or an air current. 3. Flowing energy or flowing matter. 4. An amount of energy

    asked by ice cream
  285. math

    How you can rounded 85 to the nearest ten.

    asked by ashley
  286. calculus

    find the partial derivatives du/dx, du/dy and du/dt. u= root (r^2+s^2, r = y + x cos(t), s = x + y sin(t);when x = 0, y = 2, t = 2

    asked by Ramesh
  287. science

    Atoms share electrons or donates and accepts them to

    asked by Anonymous
  288. physics

    A women walks 2m in the direction 60degrees north of east. find her final displacement.

    asked by kei c
  289. Math

    How do I solve for negative modular arithmetic? Here is an example: -45 mod 13 = 7, but how?

    asked by Francesca
  290. World history

    In the Rome of Marcus Aurelius, a recurrent formula for saving the state from crisis involved A. dividing the government and delegating authority. B. paying tributes to Germanic peoples in Europe. C. politicizing the military. D. enlisting the aid of

    asked by anonymous
  291. special education

    I need an answer to a literture question that i can't find. A judge in canto vii,named minos,use his longtail to assign the penalty for each condemned sinner?

    asked by jan
  292. This Website.

    Why do some people's posts get deleted?

    asked by Jade
  293. Reading

    what is base word for calling, called, calls. what is the base word for burning, burned, burns

    asked by ashley
  294. HELP!!!!

    why do we celebrate hispanic heritage month

    asked by Karan
  295. english

    i need the answer to this riddle: I am used for contracts I can be a manuscrpt or cursive. I am part of a friendly letter. Who am i?

    asked by kyaliah hodge
  296. Fractions

    1) What is 5/6 - 7/9? 2) Della wants to open a daycare center and saved 2/5 of the amount needed for start-up costs. If she saves another 1/8 of the necessary amount and then 1/6 more, find the total portion of start-up costs she had saved.

    asked by Alex L.
  297. Genetics

    Given below is a pedigree in which the inheritance of an autosomal dominant disease gene is being followed. Linked to the disease gene (3 cM = 3% recombination away) is a RFLP marker with 2 alleles (5 kb and 3 kb). Given the DNA marker compositions for

    asked by Karan
  298. math

    you have 25 acres and in every acre theres 10 beds. if my ratio is 6 females to 2 males. how many females and males do i have in the whole 25 acres?

    asked by Antonio
  299. science

    How does deforestation and urban sprawl affect the food web?

    asked by Tameika
  300. English

    can someone help me turn this into a personal narrative? The Lost Dog I didn’t feel like helping my sister wash my dad’s car. After our dog left this morning we were both sad, we didn’t feel like doing anything but to just search for him. “It was

    asked by Mario Garcia
  301. Social Studies (civilizations)

    How was the Persian empire was different from the Assyrian Empire?

    asked by Tiffany
  302. science

    As we reach a possible peak in oil production, what alternatives are forming? Consider the role of OPEC, perhaps, in reorganizing and monitoring oil production. What do you think is the most viable way to address after effects of this possible peak?

    asked by Tameika
  303. geography (Ms. Sue)

    Ms. Sue, I looked at the website and I also looked at a few others. New World encyclopedia as well as a few of the others say it is disputed as to what country has the fourth largest land area. It is between China and the United States. So now I am really

    asked by Reed
  304. science (optics)

    explain the process of accommodation in the human eye. thanks :)

    asked by pleasehelpme:)
  305. maths

    in a number of tests juan scored 42,54,63,42,78.What is the median mark

    asked by Tammy
  306. algebra function

    How do you graph 2x+6y =4 and compute xand yintercept form

    asked by michael
  307. algebra function

    How do you graph 2x+6y =4 and compute xand yintercept form

    asked by michael
  308. Math

    f(x)=3x+8 ; Find x if f(x)=12

    asked by Skyler
  309. Science

    1. What is the question that this study aimed to answer? State the hypothesis that you tested. I completed the lab but I don't understand what it is that I am testing. The lab had me test fragmentation at 0,25,50 and 75%.Included Spiny Grass, Blue bunch

    asked by Tameika
  310. World History

    With the adoption of Christianity by Constantine, the emperor A. was no longer worshipped as a god. B. was called God's deputy on Earth. C. stopped using images of pagan gods. D. ended pagan rituals and ceremonies. My answer is B. but i am not quiet sure

    asked by anonymous
  311. Science

    What are the main goals and strategies of green intelligence. Are they market based approaches that could save the planet?

    asked by Tameika
  312. French

    Quel jour es?[:

    asked by Mariella
  313. History

    Hello I am doing a project about the spanish colonial Floridians Time during the time when there was the 13 original colonies.For the Project I am doing a map of floridaand need to include floridas natural and industrial resources and their locations. I

    asked by Lillian
  314. English

    Here are other mistakes I checked.I'd like you to have a look at them. Thanks. 1) Elizabeth I led a powerful emperor with a strong ship army. Elizabeth made England a powerful seafaring and commercial country. "Does the word ship army exist???" 2) She was

    asked by Henry
  315. EXP 105 Personal Dimensions of Education

    Write two to three paragraphs briefly summarizing the theory and discussing at least two of the “Seven Intelligences” that apply most closely to you, providing examples to illustrate your point.

    asked by George
  316. Science

    I am making an essay about the conditions of our water resources and the issues concerning our water. What is a good title for the essay?

    asked by George
  317. social studies

    I need helping trying to find Russia's traditions, norms, and values from the 1500s. Thank you

    asked by missy
  318. English

    1. May I go to the bathroom? 2. Can I go to the bathroom? (What is the difference between #1 and #2? Betwen may and can?)

    asked by rfvv
  319. HUM/186

    what are the primary roles of media delivering news to the public

    asked by Anonymous
  320. pre calculus

    If f and g are inverse functions and the point (-3, 5) is on the graph of f, then the point ____ is on the graph of g

    asked by vedo
  321. chemistry

    what is the % ab for managese isotopes # 55

    asked by Anonymous
  322. algebra


    asked by annie
  323. English

    I forgot to add a few more sentences. I hope you can check them, too. 1) According to Wordsworth imagination sharpened a special intuition, which enabled the poet to perceive and see things the ordinary man is (or was??) usually blind to. 2) The bird never

    asked by Henry2
  324. English

    I urgently need you to check if all my corrections are OK. Thank you very much in advance. 1) The Elizabethan thetre was made up of three different galleries and three kinds of stages (it was made up of three stages surrounded by three tiers of galleries).

    asked by Henry
  325. English

    which should not be included as a heading in a chronological resume?

    asked by Donna
  326. Spanish

    please unsrcamble the spanish word sonbatiod

    asked by Ty
  327. English

    Thank you. How would you check sentences numer 3 and 4. I'm not sure about my corrections Just two things on my previous post. 1)"as long as Dunsinane hill doesn't move towards him " is better than "until Dunsinane hill moves towards him"? 2) Women weren't

    asked by Henry
  328. english

    Consider the sentence "The peace accord proposed that a neutral army be deployed to act as a buffer between two sides of a dispute." Is "buffer" a correct example of "personification"? Or perhaps another rhetorical device? Thank you.

    asked by Maria
  329. World history

    _______ was the first thinker to postulate that numbers are real, not abstractions. A. Pythagoras B. Hui Shih C. Parmenides D. Aristotle I have chosen A. Do you agree or Disagree?

    asked by anonymous
  330. physics

    you trow a ball to your friend at 30m/s. at what speed does you friend catch the ball?

    asked by Stephanie
  331. Check Fib. Number problem please

    For any prime number p except 2 and 5, either Fp-1 or fp+1 is divisible by p. If I showed that this is true for p=7, the answer should be F8---is this correct because f8 is 21. P=11 would be divisible by 55 which is F10.

    asked by Rachel
  332. French

    Tu t'appelles comment?[:

    asked by Mariella
  333. childcare

    In what ways can a child care centre program provide quality care for the child caregivers.

    asked by sarah
  334. math

    arrays and an expanded algorithm 23*17

    asked by nancy
  335. science

    Mercury is a heavy metal. Using atomic models and the periodic table of elements, explain why it belongs to this category of elements

    asked by Matt
  336. Science

    Atoms share electrons or donates and accepts them to A. bond B. become stable C. to gain mass D. both A and B I think it is C

    asked by Anonymous
  337. Algebra

    What are the steps to solve this problem? -11+10(x+10)=4-5(2x+11)

    asked by Brianna
  338. Adding Fractions

    What is 3/7 + 2/5 + 1/10?

    asked by Alex L.
  339. Government US

    26. U.S. Bureau of Labor statistics reveal that the great majority of those workers who lost their jobs in 2001 did so because a. they are lazy. b. of either a temporary layoff or the permanent elimination of a job position. c. they were undereducated for

    asked by HM
  340. Home owning

    Is it possible to own a home or apartment in some areas without having to pay utilities, making for a less stressful life? If anyone says no, I don't want to feel bad for asking this because I'm a little worried about it.

    asked by Alex L.
  341. Pre-algebra


    asked by Lindz
  342. datebase

    What five or six fields will you include in the database?

    asked by lisa
  343. math


    asked by Raymond
  344. math


    asked by Raymond
  345. math

    if two dice are rolled one time, what is the possibility of getting a number smaller than 5

    asked by ilda
  346. Math

    factor 50x^2-72

    asked by ariel
  347. social studies

    Developmental psychologists know that the sex of the baby is determined: A)definitively at conception. B)by the release or non-release of a hormone during the embryonic stage. C)by the embryo's genes. D)during the fetal period. I chose C. Am I right?

    asked by missy
  348. Pre-algebra


    asked by Lindz
  349. Reading

    what is base word.

    asked by ashley
  350. Math


    asked by Melissa