Questions Asked on
November 22, 2011

  1. pre-calc

    A ferris wheel is 28 meters in diameter and makes one revolution every 10 minutes. For how many minutes of any revolution will your seat be above 21 meters?

    asked by ikora
  2. chemistry

    write the equations for the substitution reaction of methene with bromine under the following conditions. a) reaction in the presence of sunlight CH4+Br2 sunlight=? b) reaction in the absence of sunlight CH4+Br2 =?

    asked by denis
  3. Physics

    A 25 kg child slides down a playground slide at a constant speed. The slide has a height of 3.0 m and is 7.0 m long. Using energy considerations, find the magnitude of the kinetic friction force acting on the child.

    asked by Lindsey
  4. Calculus 1

    If you have 280 meters of fencing and want to enclose a rectangular area up against a long, straight wall, what is the largest area you can enclose?

    asked by D
  5. anatomy

    In the body, lever systems involve the interaction of __1__, which provide the force, and __2__, which provide the lever arms. The force is exerted where __3__. The site at which movement occurs in each case is the intervening __4__, which acts as a

    asked by Katie
  6. reading

    (1) Making rice pudding can be very easy. (2) First, get a large, heavy saucepan. In the pan, measure 3 cups of whole milk, 1 cup of water, 1/2 stick of margarine or butter, and 1/2 cup of rice. (3) Bring this mixture to a quick boil. (4) Lower heat and

    asked by young treph
  7. Chemistry

    Consider 15 mL of an aqueous solution containing 2.0 g of an organic solute. If the distribution coefficient for the solute between ether and water is 20, calculate the percent of the compound that can be recovered with a single extraction with 13.9 mL of

    asked by Anonymous
  8. Math

    Reasonableness. Use the clues to solve the. Riddle. I am between 24and34. You say my name when you count by twos from zero. You say my name when you count by fives from zero. What number am I? 20 21 22 23 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

    asked by Harry
  9. Physics

    An Alaskan rescue plane drops a package of emergency rations to a stranded party of explorers, as illustrated below in Figure 18. The plane is traveling horizontally at 30m/s at a height of 200m above the ground. a. What horizontal distance does the

    asked by Rychelle
  10. Physics

    In the winter sport of curling, players give a 20 kg stone a push across a sheet of ice. A curler accelerates a stone to a speed of 3.0 m/s over a time of 2 s. a)How much force does the curler exert on the stone? b)What average power does the curler use to

    asked by Lindsey
  11. Math

    6,11,16,21,....Algebraic expression______ 12th term- 30th term-

    asked by Miss Sweet:)
  12. Physics

    Write an expression for a transverse harmonic wave that has a wavelength of 2.8 m and propagates to the right with a speed of 14.2 m/s. The amplitude of the wave is 0.13 m, and its displacement at t=0 and x=0 is 0.13 m.

    asked by Cooper
  13. physics

    A thin uniform rod is rotating at an angular velocity of 6.7 rad/s about an axis that is perpendicular to the rod at its center. As the drawing indicates, the rod is hinged at two places, one-quarter of the length from each end. Without the aid of external

    asked by Anne
  14. Psychology

    Is my answer correct I said the correct answer is D Regarding cultural differences in self-esteem, which of the following statements is/are TRUE? a. People from Eastern cultures are more likely to engage in self-criticism. b. The self-esteem for people

    asked by Marilyn
  15. Physics

    Two ships in a heavy fog are blowing their horns, both of which produce sound with a frequency of 165.0 Hz One ship is at rest; the other moves on a straight line that passes through the one at rest. If people on the stationary ship hear a beat frequency

    asked by Cooper
  16. chemistry

    write the equations for the addition reaction of ethene with bromine under the following conditions. a) reaction in the presence of sunlight H2C=CH2+Br2 sunlight=? b) reaction in the absence of sunlight H2C=CH2+Br2=?

    asked by denis
  17. Physics

    A solid cylindrical disk has a radius of 0.18 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 40-N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular

    asked by Kelsey
  18. Pre-calculus

    An airplane has an airspeed of 150 km/hr. It is to make a flight in a direction of 70 degrees while there is a 25 km/hr wind from 340 degrees. What will the airplane's actual heading be? Please Explain this Problem to me!!!!

    asked by Desperate!!!!
  19. physics

    seagulls are often observed dropping clams and other shellfish from a height to the rock below, as a means of opening the shells. If a seagulls drops a shell from rest at a height of 14m, how fast is the shell moving when it hits the rock?

    asked by taylor
  20. Mathematics

    The difference between two numbers is 9 and the product of the numbers is 162. Find the two numbers. Explain your working

    asked by Mandy
  21. chemistry

    how many half lives will it take for 50 g of 99Tc to decay to 6.25 g?

    asked by Anonymous
  22. chemistry

    Balancing Redox Reaction in Basic Solution CN- + MnO-4 --> CNO- + MnO2 H2O + CN- --> CNO- + 2H +2e 3e + 4H + MnO4- --> MnO2 + 2H2O My confusion is with adding the OH- please explain

    asked by Monique
  23. physics

    A car is safely negotiating an unbanked circular turn at a speed of 17.2 m/s. The maximum static frictional force acts on the tires. Suddenly a wet patch in the road reduces the maximum static frictional force by a factor of three. If the car is to

    asked by Bri
  24. Calculus please help

    Find the centroid of the area bounded by the parabola y=4-x^2 and the x-axis A.(0,1.6) B.(0,1.7) C.(0,1.8) D.(0,1.9)

    asked by Tracy
  25. Physics ASAP

    Tarzan, mass 85kg swings down from a tree limb on the end of a 20m vine. his feet touch the ground 4.0m below the limb. A. how fast is Tarzan moving when he reaches the ground? B. Does your answer depend on Tarzan's mass? C. Does your answer depend on the

    asked by Fizzylicous
  26. physics

    A book with 67 joules of gravitational potential energy fell from a shelf and landed on the flood. what was its kinetic energy when it landed on the floor?

    asked by scarlett
  27. university of ghana

    similarities between good governance and democracy

    asked by felicity
  28. Psychology

    Is this the correct answer I said C is the correct answer Jasmine is a college student, who is self-conscious and anxious in social situations and who tends to be a bit too trusting and tender-hearted when it comes to loaning money and clothing to her

    asked by Keller
  29. Physics

    Assume that the earth is a uniform sphere and that its path around the sun is circular. a) Calculate the kinetic energy that the earth has because of its rotation about its own axis. For comparison, the total energy used in the United States in one year is

    asked by Anne
  30. physics

    1)A fire hose held near the ground shoots water at a speed of6.5 mps At what angle should the nozzle point in order that the water land 2.5 meters away? Answers: 18 degrees and 72 degrees 2) A long jumper leaves the ground at 45 degrees above the

    asked by Maggie
  31. physics

    the first active volcano observed outside the earth was discovered in 1979 on Io, one of the moons of jupiter. the volcano was observed to be ejecting material to a height of about 2.00x10^5m. given that the acceleration of gravity on Io is 1.80 m/s^2,

    asked by taylor
  32. Physics

    A daredevil decides to jump a canyon of width 10 m. To do so, he drives a motorcycle up an incline sloped at an angle of 15 degrees. What minimum speed must he have in order to clear the canyon?

    asked by nam maurer
  33. calculus, math

    Use Newton's method to approximate the value of (543)^(1/5) as follows: Let x1=2 be the initial approximation. find x2 and x3 =? approximation

    asked by kayla
  34. physics

    Water is leaving a hose at 6.8 m/s. If the target is 2 m away horizontally, What angle should the water have initially?

    asked by nam maurer
  35. SCIENCE

    the brachialis is a short stout muscle inserting cloes to the fulcrum of the elbow joint' the brachioradialis is a slender muscle inserting distally, well way from the fulcrum of the elbow joint. Which is a mechanical advantage and which is a disadvantage

    asked by Katie
  36. Physics

    a projectile has an initial velocity of 15.0 m/s at an angle of 30 degrees above the horizontal. What is the location of the projectile 2.0 seconds later?

    asked by nam maurer
  37. Physics

    A pair of in-phase stereo speakers is placed side by side, 0.85 m apart. You stand directly in front of one of the speakers, 1.2 m from the speaker. What is the lowest frequency that will produce constructive interference at your location?

    asked by Cooper
  38. algebra 1

    A piece of lumber which is 55 inches long is cut into two parts such that 2 times the larger part will be 12 more than 5 times the smaller part. How long are each of the pieces of lumber?

    asked by carole
  39. chemistry

    draw a diagram showing the arrangement of the valency electrons in one molecule of the covalent compound selenium chloride. use x to represent an electron from an atom of selenium. use o to represent an electron from an atom of chlorine

    asked by sahar
  40. medical Coding

    Can someone tell me if I coded this right. This 23-year-old female is brought to the emergency department after being found by her college roommate. Sometime within the last hour and a half after the roommate left, the patient ingested her entire bottle of

    asked by rjrj2196
  41. Finance

    1) A potato chip manufacturer has been accused of shortchanging their customers with their 10-ounce bags of potato chips. A sample of 50 of that company’s 10-ounce bags was taken, and it was found that the average weight was 9.8 ounces with a standard

    asked by Jaison
  42. math

    All of the following are equilavent to 3:8 = x:32 except 8:3=32:x 3:8=8:32 x:8=3:32 8:32=3:x

    asked by Alex Z
  43. Algebra II

    The maximum safe load of a rectangle beam varies jointly as its width and the square of its depth and inversely as the length of the beam. If a beam 8.00 in. wide, 11.5 in. Deep, and 16.0 ft long can safely support 15.000 lb, find the safe load for a beam

    asked by Ashley
  44. university

    A surfer is catching a wave. Suppose she starts at the top of a wave with a speed of 1.37 m/s and moves down the wave until her speed increases to 9.90 m/s. The drop in her vertical height is 2.64 m. If her mass is 63.3 kg, how much work is done by the

    asked by nelson
  45. Math

    An alligator’s tail length, T, varies directly at its body length, B. An alligator with a body length of 3.2 feet has a tail length of 2 feet. What is the tail length of an alligator whose body length is 4.8 feet?

    asked by Carla
  46. physics

    A ball, of mass 0.13Kg, is held on the inside of a smooth hemispherical bowl at a height 0.25 m above the base. It is then released. Assuming there is no friction, the acceleration due to gravity, g, is 10 m/s2 and the potential energy is zero at the base

    asked by Jimmy
  47. college math

    a license plate is to consist of three digits followed by two uppercase letters. determine the number of different license plates possible. the first digit cannot be zero and repition is not permitted.

    asked by ashley
  48. Chemistry

    how many moles of o2 are needed to produce 3.91 mol fe2o3

    asked by Anonymous
  49. physics

    total internal reflection between two materials is seen to occur if a critical angle of 60 degrees is exceeded. if the index of refraction of the material that the light is entering is 1.98,find the inndex of refraction of the material in which the light

    asked by deondre thomas
  50. math

    If (x+2)/2=y/5, then which of the following must be true? x/2=(y-2)/5 x/2=(y-5)/5 (x+2)/5=y/25

    asked by Alex Z
  51. English (The Wife of Bath)

    What do you think of the Wife of Bath's opinion about what women want most? If she were asked what men want most, how do you suppose she would respond?

    asked by Amanda M.
  52. Math

    If both masses are increased by 60% and the distance between them is halved, by what percent will the force of attraction increase?

    asked by Zoey
  53. Physics

    The drawing shows a model for the motion of the human forearm in throwing a dart. Because of the force applied by the triceps muscle, the forearm can rotate about an axis at the elbow joint. Assume that the forearm has the dimensions shown in the drawing

    asked by Anne
  54. chemistry

    Question: how to solve for a 28.4 L sample of methane gas is heated from 35.0° C to 76.0° C. The initial pressure of the gas is 1.00 atm at 35.0° C. Assuming constant volume, what is the final pressure of the gas? Could someone give me the setup for

    asked by sandy
  55. chemistry

    summarize the solubilty behavior of hydrocarbons in water (a polar solvent) and in non polar organic solvents

    asked by denis
  56. Algebra II

    The kinetic energy of a moving body is directly proportional to its mass and the square of its speed. If the mass of a bullet is halved, by what factor must its speed be increased to have the same kinetic energy as before?

    asked by Ashley
  57. Physics

    A ball, of mass 0.15 Kg, is held on the inside of a smooth hemispherical bowl at a height 0.16 m above the base. It is then released. Assuming there is no friction, the acceleration due to gravity, g, is 10 m/s2 and the potential energy is zero at the base

    asked by billy
  58. Economics

    Suppose the production function is Y = 100(K3/10)(EN)7/10 and capital lasts an average of fifteen years. The rate of population growth is 0.5%. The rate of technological progress is 2.5%. The saving rate is 5%. A. Derive the equation for output per

    asked by Matty
  59. physics

    A parallel plate capacitor has square plates of side L= 12 cm and a distance d= 2 cm between the plates. Half of the capacitor areae is filled with a dielectric with k1 = 35. the other half is filled with a different dielectric with k2 = 8. The effective(

    asked by Jam
  60. Statistics

    4) The table below shows the study times and test scores for a number of students. Study Time (minutes) (x) 9 16 21 26 33 Test Score (y) 59 61 64 65 73 a)What line best relates study time to the test score? b)Calculate r and r^2. c)Determine whether r is

    asked by Lucy
  61. microsoft office aplication-computers

    what is an advantage of inputting text on a slide via a text in powerpointx a )any font can be selected within a text box b)text within a text box can be formatted by color or style c)you can position the text anywhere on the slide by dragging the text box

    asked by vedrana
  62. math

    Emily surmises that the probability that she will pass math or chemistry is .95, the probability of her passing math is .7, and the probability of passing both is .55. Find her estimate of the probability of passing chemistry?

    asked by Sam
  63. Physics

    A fleck moving horizontally to the right at 2.5 m/s begins to accelerate downward at 0.75 m/s2 . Where is the fleck 4.0 s later?

    asked by nam maurer
  64. geometry

    Given l parallel to m, find the measures of each angle.

    asked by lisa
  65. physics

    bill steps off a 3.0-m-high diving board and drops to the water below. At the same time Ted jumps upward with a speed of 4.2 m/s from a 1.0-m-high diving board. choosing the origin to be at the water's surface and upward to be the positive direction, write

    asked by taylor
  66. physics

    A hot air balloon is traveling vertically upward at a constant speed of 3.9 m/s. When it is 10 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 Anonymous
  67. Statistics

    4) The table below shows the study times and test scores for a number of students. Study Time (minutes) (x) 9 16 21 26 33 Test Score (y) 59 61 64 65 73 a)What line best relates study time to the test score? b)Calculate r and r^2. c)Determine whether r is

    asked by Lucy
  68. chemistry

    Conjugate base of acid H3PO4= I have H2PO-4 Is this correct?

    asked by Sarah
  69. chemistry

    Acid dissociation constant for HNO3+H2O-H3O+ +NO3= I have [H3O+][NO1-3]/[HNO3] Do I have this right?

    asked by Sarah
  70. physics

    a car starts from rest and accelerates at in a straight line at a constant rate of 4.5m/s/s. How far will the car travel in 35 seconds.

    asked by al
  71. chemistry

    How many molecules are in 3.78 moles of carbon dioxide?

    asked by Tori
  72. physics

    A block of mass m sliding on a frictionless table is attached to a string that passes through a narrow hole through the center of the table. The block is sliding with speed v0 in a circle of radius r0. (Use any variable or symbol stated above as

    asked by Mike
  73. calculus

    Find the length in the first quadrant of the circle described by the polar equation r=(2 sin theta)+(4 cos theta) A. (sqrt2)(pi) B. (sqrt5)(pi) C. (2)(pi) D. (5)(pi)

    asked by Tracy
  74. Physics

    A ball, of mass 0.3Kg, is held on the inside of a smooth hemispherical bowl at a height 0.15 m above the base. It is then released. Assuming there is no friction, the acceleration due to gravity, g, is 10 m/s2 and the potential energy is zero at the base

    asked by Peter
  75. Statistics

    A battery manufacturer is positive that its AA batteries last for 1,000 hours. However, you’re working for Consumer Reports and you don’t agree with what they say about their product. So, you buy 400 batteries and you test them out. Your findings are

    asked by Mike
  76. Physics Drwls

    I was wanting help with my physics post and since no one replied I thought there wasn't a physics tutor on Jiskha, but came back on today cause I really need to get a hang of my physics stuff and luckily seen you Drwls. A bike rider approachea a hill with

    asked by Fizzylicous
  77. math/Right triangle trig

    Your favorite team is attempting a field goal. The ball is kicked at an angle of 45 degrees with the field. The ball covers a horizontal distance of 85 inches before the kick is blocked. What is the minimum height the opposing team's player can be to block

    asked by Anonymous
  78. Calculus still confused

    Find the length in the first quadrant of the circle described by the polar equation r=(2 sin theta)+(4 cos theta) A. (sqrt2)(pi) B. (sqrt5)(pi) C. (2)(pi) D. (5)(pi)

    asked by Tracy
  79. chemistry

    mix 10ml NaBr 3.i000M wth 10ml water & 10ml AgNo3 3.3.1000M KspAgBr=5.25.1000 .what is the situation at equilibrium

    asked by rene
  80. chemistry

    how to solve for a 28.4 L sample of methane gas is heated from 35.0° C to 76.0° C. The initial pressure of the gas is 1.00 atm at 35.0° C. Assuming constant volume, what is the final pressure of the gas? OK, I did the following: P₁ = 28.4 L P₂ = ?

    asked by sandy
  81. socials

    Invasion of Italy were allies the U.S, Britain the Soviet Union? how Canada involved in this? they team up with Britain? i thought Canada be independence on own and no fight no more but they fight for what? They overtake Sicily. this place in europe? then

    asked by Mohammad
  82. physics

    A 2.0 nF parallel plate capacitor with a sheet of mylar (k= 3.1) filling the space between the plates is charged to a potential difference of 90 V and is them disconnected. How much work would be required to completely remove the sheet of mylar from the

    asked by Jam
  83. Physics

    During World War I, the Germans had a gun called Big Bertha that was used to shell Paris. The shell had an initial speed of 2.11 km/s at an initial inclination of 39.4◦ to the horizontal. The acceleration of gravity is 9.8 m/s2 . How far away did the

    asked by Anonymous
  84. Algebra 1

    In a bike race, a rider covers a 5 mi flat stretch of road at a speed of s mi/h. She then doubles her speed down a hill 1 mi long. Finally, she reduces her downhill speed bu 12 mi/h as she rides the last 3 mi of the race. What function gives the time t it

    asked by Vannah
  85. business

    Your team is a group of leading US business consultants and you have been tasked with proposing an M-Commerce application to a well-regarded regional pharmacy chain consisting of 200 stores. The pharmacy chain wants to better connect with their customers

    asked by tye
  86. physics

    A student has six textbooks, each with a thickness of 3.6 cm and a weight of 38 N. What is the minimum work the student would have to do to place all the books in a single vertical stack, starting with all the books on the surface of the table?

    asked by Anonymous
  87. statistics

    Some test use a median of 50 and a standard deviation of 10. What proportion of the population will be between the standard score of 90 and 110?

    asked by Hm
  88. Algebra II

    If y varies directly as the square root of w and inversely as the cube of x, by what factor will y change if w is tripled and x is halved?

    asked by Shauna
  89. Algebra II

    If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?

    asked by Marie
  90. chemistry

    Acid, base, or salt? I have H2SO4= Acid, KOH= Salt, MgCl2= Salt, and NH3= Base Are these correct?

    asked by Sarah
  91. math

    I have a question that says one rectangle has a 3x4 centimeter area. If I make another rectangle, what's the area if the scale factor is 4?

    asked by Tre
  92. physics

    A 6.0 kg mass moves along an inclined plane that makes an angle of 36 degrees with the horizontal. The mass is connected by a cable to a second mass of 10.0 kg, which is suspended over a frictionless, massless, pulley and is free to move. The second mass

    asked by Alex
  93. Math

    The time needed to empty a vertical cylindrical tank varies directly as the square root of the height of the tank and the square of its radius. By what factor will the emptying time change if the height is doubled and the radius increased by 25%?

    asked by Jake
  94. Math

    Solve the logarithmic equation for x. Log3(x^2 − 5x − 9) = 3 I Have no idea

    asked by Anonymous
  95. English

    Could you please check these sentences, please? Thank you. 1) It is advisable for you to do the exercise. 2) It would be better/best if he did the exercise. (but NOT for him to do) 3) It is difficult for him to do the exercise. It is easy for him to do the

    asked by Henry2
  96. astronomy

    Using the densities below, find what percentage of the Earth's mass is contained in its core. If Earth's core were adjusted in radius so that the core contained forty percent of the mass, by what factor would the radius of the Earth change compared with

    asked by roach
  97. Math

    If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?

    asked by Zoey
  98. physics

    Legend has it that Isacc Newton was hit on the head by a falling apple, thus triggering his thoughts on gravity. Assuming the story is to be true, estimate the speed of the apple when it struck Newton.

    asked by taylor
  99. Physics

    A motorcycle and a police car are moving toward one another. The police car emits sound with a frequency of 512 Hz and has a speed of 28.0 m/s. The motorcycle has a speed of 13.0 m/s. What frequency does the motorcyclist hear?

    asked by Cooper
  100. statistics

    2)A political candidate is positive that she will get 60% of the vote in an upcoming election. A sample of 100 people is taken, and 52 say that they will they will vote for her. Using a 5% significance level, is the politician right in her claim?

    asked by Mike
  101. math

    In a right angle triangle, two acute angles are in the ratio 2:3. Find the angles?

    asked by Benjamin
  102. physics

    A student has six textbooks, each with a thickness of 3.6 cm and a weight of 38 N. What is the minimum work the student would have to do to place all the books in a single vertical stack, starting with all the books on the surface of the table?

    asked by Anonymous
  103. computers

    Which type of data communication system is composed of a group of devices in close proximity? (Points: 5) CAN LAN MAN WAN Is it LAN

    asked by john
  104. chemistry

    what gas is produced in the reaction between calcium carbide and water?write the balanced equation for the reaction.

    asked by denis
  105. Math

    Solve by completing the square x^2+4x-21=0 Help how do I do this???

    asked by Allison A
  106. physics

    many vacuum flasks have steel walls instead of glass. how would this effect how gfast some hot coffee cools

    asked by lissa
  107. Algebra II

    The intensity of illumination at a given point is directly proportional to the intensity of the light source and inversely proportional to the square of the distance from the light source. If a desk is properly illuminated by a 74.0 w lamp 8.00 ft from the

    asked by Marie
  108. Algebra II

    The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

    asked by Jake
  109. Algebra II

    The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

    asked by Jake
  110. english

    Please help me with the correct grammar, punctuation, and capitalization on the following paragraph. You will not notice any appreciable change in the pain level for about a week; however, you should be able to anticipate some relief during the second week

    asked by Yelena
  111. trig

    In a rignt angle base is 20 mtr,adjacent side is 6 mtr, hypotenus is 20.88 mtr, what is the degree of angle of hypotenus and base

    asked by Anonymous
  112. Astronomy

    If we assume the Sun is made totally out of hydrogen, how many hydrogen atoms are contained with the Sun? If the Sun converts half of these hydrogen atoms into helium over its lifetime of about ten billion years, how many hydrogen atoms are converted per

    asked by Kaitlyn
  113. English

    When can I use "further" as a sentence connector? Thank you. I have a few more doubts. 1) One million people died of the famine (never: one million of people): 2) The uilleann pipes originally known as the Union bagpipe of Ireland. The uilleann pipes bag

    asked by Henry2
  114. physics

    The cost of gasoline per hour for running a certain car is directly proportional to the square of the speed. I f the cost is $2.40 per hour for a speed of 40 km/h, what is the cost per hour for a speed of 60 km/h?

    asked by Anonymous
  115. Physics

    A projectile was launched 64° above the horizontal, attaining a height of 10 m. What is the projectile's initial speed?

    asked by nam maurer
  116. chemestry

    what is the molarity of a solution made by dissolving 3.86 moles of NaCl in 2.50 L of solution?

    asked by Anonymous
  117. science

    hydrogen and oxygen combine in the ratio of 1:8 by mass to form water.what mass of oxygen gas would be required to react completely with 3grams of hydrogen gas?

    asked by sai
  118. Math

    If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?

    asked by Jake
  119. statistics

    Using our data set from Unit 1, compose a 3-page e-mail to the head of the American Intellectual Union, which includes the following: 1.Begin your e-mail to AIU by first providing an overview of the database, that is, a story about the characteristics that

    asked by hilda
  120. Algebra II

    The maximum safe load of a rectangle beam varies jointly as its width and the square of its depth and inversely as the length of the beam. If a beam 8.00 in. wide, 11.5 in. Deep, and 16.0 ft long can safely support 15.000 lb, find the safe load for a beam

    asked by Ashley
  121. English

    Thank you. Could I use the simple past instead of the present in the sentence I posted you? It would be best if our science teacher spoke with you .... Can I say: I think it woud be best for our science teacher to speak with you directy?

    asked by Henry2
  122. Algebra II

    The intensity of illumination at a given point is directly proportional to the intensity of the light source and inversely proportional to the square of the distance from the light source. If a desk is properly illuminated by a 74.0 w lamp 8.00 ft from the

    asked by Ashley
  123. Math

    The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

    asked by Zoey
  124. Algebra

    -4^2+44x-160=0 If you graphed the above equation, would the graph open up or down? How can you tell without graphing it?

    asked by Kelly
  125. Religion

    Movie: Romero Q. how do you think that believing in Jesus affected what Romero did??

    asked by Vanessa
  126. math

    what is the square of 65

    asked by aldwin
  127. MATH

    A bag contains 2 red marbles, 4 blue marbles, and 8 green marbles. What is the probability of choosing a blue marble?

    asked by Anonymous
  128. jfk high school

    if one side of a regular octagon is represented by 2x-1, the perimeter of the octagon can be represented by what?

    asked by gabby
  129. Mathematic

    . The number of vibrations per second made when a stretched wire is plucked varies directly as the square root of the tension in the wire and inversely as the length. If a 1.23 m long wire will vibrate 325 times each second when the tension is 115 N,

    asked by Robert
  130. computers

    In which type of network configuration is each device connected to exactly two other devices? (Points: 5) Bus Mesh Ring Star im confused between B and C plz help

    asked by john
  131. physics

    Suppose the simple pendulum shown below were released from an angle of θ = 74°, with L = 0.73 m and m = 0.25 kg..What angle of release would give half the speed of that for the 74° release angle at the bottom of the swing?

    asked by Anonymous
  132. physics

    many vacuum flasks have steel walls instead of glass. how would this effect how fast some hot coffee cools?

    asked by lissa
  133. Algebra

    "Did you hear about..." Its 12 words btw

    asked by Sarah
  134. physics

    Suppose the simple pendulum shown below were released from an angle of θ = 74°, with L = 0.73 m and m = 0.25 kg..What angle of release would give half the speed of that for the 74° release angle at the bottom of the swing?

    asked by Anonymous
  135. Blank Verse

    I needed the scansion for the word "Cordelia" I believe cordelia is /-/- stressed unstressed stressed unstressed let me know if my thought process is right I appreciate any help!

    asked by Jasmin
  136. math

    What is the distance between two parallel lines whose equation is L1,3x-4y+10=0 and L2,3x-4y+2=0

    asked by Abas
  137. microsoft office aplication-computers

    YOU HAVE JUST INSERTED A TABLE WITHIN POWERPOINT SLIDE.You will then place the text within the of the table: A)records b)cells c)legends d)placements IS B CORRECT ANSWER?THANK YOU:)

    asked by vedrana
  138. Social Studies

    What was the 1st automobile to be mass produced in the U.S.? It was the 1901 one

    asked by Mika
  139. English

    1. He pretended he was carrying the glass necklace /and started down the stairs. Did the two actions happen at the same time(before 'and' and after 'and)? 2. Pretending he was carrying the glass necklace, he started down the stairs. 3. While he pretended

    asked by rfvv
  140. scien

    the relative density is 6.5. find the mass of the solid cube of side 2ocm

    asked by k.k
  141. math

    curve y=f(x),minimum point (1,q),q is a constant...then the quadratic function is 3x(x+p)^2 + 2....find 1.)value p,2.)value q

    asked by Jesslyn
  142. math

    rewrite this ad so it will be more effective: Three thousand five hundred dentists surveyed recommend sugarless gum to their parents who chew gum

    asked by marie
  143. math

    Would you use mental math to solve 2984+1997+406? Explain?

    asked by sandra
  144. chemistry

    Oxidation CN- C=2+ N=3- Can you explain how C is 2+

    asked by Monique
  145. Math

    The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

    asked by Jake
  146. Math

    The intensity of illumination at a given point is directly proportional to the intensity of the light source and inversely proportional to the square of the distance from the light source. If a desk is properly illuminated by a 74.0 w lamp 8.00 ft from the

    asked by Jake
  147. Geometry

    A ladder leans against a house at a 60° angle to the ground. If the ladder extends to a length of 166 inches, what is the height of the house to the nearest hundredth of an inch?

    asked by Lil
  148. physics

    A 160g stone, tied to a thread, swings in a horizontal circle with a 100 cm diameter. If the maximum tension the thread can withstand before snapping is 28n, find the A) Maximum speed of the stone. B) Acceleration of the stone at this speed. For A I used

    asked by mack
  149. College Pre-Algebra

    Solve -14x-7(4-x)< 3(2x-15). Write your solution using set builder notation. Please show all of your work.

    asked by Kameesha
  150. math

    the area is 16msquared it has to be a rectangle. what is the permitter

    asked by Dylan Hughes
  151. physics

    Legned has it that Isacc Newton was hit on the head by a falling apple, thus triggering his thoughts on gravity. Assuming the story is to be true, estimate the speed of the apple when it struck Newton.

    asked by taylor
  152. Algebra II

    The volume of a given weight of gas varies directly as its absolute temperature t and inversely as its pressure p. If the volume is 4.45 m^3 when p=225 kilo pascals (kpa) and t = 305 K, find the volumn when p = 325 kpa and t = 354 k.

    asked by Ashley
  153. busi/stats

    The Quality Assurance Department selected a sample of 12 printed circuit boards and tested them. The number of defects in each circuit board was 3, 3, 0, 5, 1, 1, 5, 6, 6, 2, 0, and 1. What kind of control chart should be constructed to monitor the

    asked by Tim
  154. English

    1. He must be a doctor. 2. He has to be a doctor. (Are both the same? Is #2 grammatical?)

    asked by rfvv
  155. statistics

    The following data on the number of iron workers in the United States for the years 1978 through 2008 are provided by the U.S. Bureau of Labor Statistics. Using regression techniques discussed in this section, analyze the data for trend. Develop a scatter

    asked by nia
  156. calculus

    what is the derivative of x^2(x^2-4)

    asked by Maria
  157. Trig

    Triangle ABC has B= 137degrees, A=31.6 in., and C=42.8 in. Find B.

    asked by Gaius
  158. Algebra

    a colection of stamps consist of 2 cent stamps, 8 cent stamps, and 14 cent stamps. The number of 2 cent stamps is five more then twice the number of 8 cent stamps.the number of 14 cent stamps is three times the number of 8 cent stamps. The total value of

    asked by Neva
  159. algebra

    brad wants to buy flowers for his friend with 27 $ . the daises are $1 each and the roses are $3 each. he buys 3 more daises then roses. how much did the roses cost?

    asked by paige
  160. Physics

    During World War I, the Germans had a gun called Big Bertha that was used to shell Paris. The shell had an initial speed of 2.11 km/s at an initial inclination of 39.4◦ to the horizontal. The acceleration of gravity is 9.8 m/s2 . How far away did the

    asked by Anonymous
  161. ETH501

    Sethi, S., Veral, E., Shapiro, H., & Emelianova, O.. (2011). Mattel, Inc.: Global Manufacturing Principles (GMP) - A Life-Cycle Analysis of a Company-Based Code of Conduct in the Toy Industry. Journal of Business Ethics, 99(4), 483-517. Retrieved August 2,

    asked by Bernard
  162. Calculus

    Let f(x)=x^3+3x and g(x=5x^2-x Determine the area of the region enclosed by the graphs of f and g.

    asked by Anonymous
  163. science

    How plant and animal life dependent on the water cycle?

    asked by june
  164. Math

    A chemist has two ethylene glycol and water solutions: one that contains 11.98% ethylene glycol and another with 7.30% ethylene glycol. How many litres of each must be mixed to make 7.50 x 102 L containing 10.50% ethylene glycol?

    asked by Mathieu
  165. health care

    What is the difference between descriptive and inferential statistics? Provide example how you could apply both in your work environment

    asked by pj
  166. MATH

    So none of these are correct? 2/3 divided 3/5 = 1 1/9 or 2/5?

    asked by JOSH
  167. Physics

    If an outburst of northern lights occurs 3.5 days after a large solar flare is seen, what is the average velocity of the solar wind? Give the answer in meters per second.

    asked by Jobeth
  168. Algebra 2

    The radius of a right cylinder is 15 inches and its height is 6 inches. What single amount can be added to either the radius or the height so that the volumes will increase the same amount?

    asked by unanimous
  169. world geography

    i'm stuck on this one whats the answer? 7. Which European colonial power took control of Malaya and built the port at Singapore? A. Spain B. Portugal C. Netherlands D. The United Kingdom

    asked by siinna
  170. Math

    Write a quadratic equation having the given number as solutions -7 and -4 I cant think of how to do this?

    asked by Allison A
  171. MATH

    A RADIO USES THE ENERGY EQUIVALENT 1/20 TON OF COAL PER YEAR. FIND THE ENERGY EQUIVALENT IN TONS OF COAL FOR OPERATING A RADIO FOR FOUR YEARS.??

    asked by MEL
  172. english

    Any suggestions on punctuation, grammar and sentence structure? Springfield Homeless Camps and the Law The growing homeless population in Springfield Missouri is unavoidable. They are seen everywhere, especially in more populated towns and cities. As they

    asked by Shell
  173. general chemistry

    Calculate the molar mass that would be obtained from the actual experimental data under the following conditions. The unknown is methyl propyl ether (CH3OC3H7) which has a vapor pressure of 375.2 torr at room temperature, 20C. The volume of the flask is

    asked by cinderrrr
  174. Algebra II

    The amount paid to a work crew varies jointly as the number of persons working and the length of time worked. If 5 workers earn $5123.73 in 3.0 weeks, in how many weeks will 6 workers earn a total of $6148.48?

    asked by Jake
  175. Intergrated science

    What are the various solvents for the following solutes? a. wax b. plant pigment c. glucose d. coaltar e. fat

    asked by Makinin
  176. trig

    In a rignt angle base is 20 mtr,adjacent side is 6 mtr, hypotenus is 20.88 mtr, what is the degree of angle of hypotenus and base

    asked by sanatan
  177. college math

    solve the equation 1). (x+4)(x-12)=5x 2). 4x^2+2x-14=16-17x

    asked by luna
  178. math

    the third and fourth terms of the sequence are 21 and 38. If the second differences are a constant 2, what are the first five terms of the sequence?

    asked by matt
  179. physics please help!!

    You're standing several meters away from a regular (plane) mirror. The mirror has water spots on its surface. Can you see both the spots and yourself in focus at the same time?

    asked by archi
  180. Maths

    Solve the equation. 2y^2 - 6y = 56

    asked by Gilda
  181. business

    Identify a sacco organization involved in online business

    asked by joe
  182. english

    Once you click on the paint palette icon, you will be given a list of potential resources. How many resources are under the “Arts and Humanities” category?

    asked by Anonymous
  183. math

    Will pays $85 membership fee to become a member of a gym. He then pays only $37 every month. Write an equation to show how many months he could work out if he has $560.

    asked by yvette
  184. Javascript

    I would like the function test to get the input from the user and display the like the counter function and to display if it passed or not. var negatives =0; var zeroes =0; var positives=0 ; function counter(array){ var i=0; for(i=0;i 0) : positives ++;

    asked by Adam
  185. physics

    An object of mass 10 kg is pulled along a horizontal floor of a distance 3 m. The friction force between the object and the floor is 50 N. What is the minimum work done by the pulling force?

    asked by Abel
  186. healthcare administration

    ◦What do you feel are the biggest weaknesses of the health care plan, and why? ◦Be sure to provide 2–3 weaknesses for each group (i.e. providers and patients), and explain your rationale for choosing each by supporting your thoughts with properly

    asked by Walter
  187. statistics

    x= 70 115 105 82 93 125 88 y= 3 45 21 7 16 62 12 compute r using the computation formula nearest thousandth

    asked by andrea
  188. statistics

    x= 70 115 105 82 93 125 88 y= 3 45 21 7 16 62 12 compute r using the computation formula nearest thousandth

    asked by andrea
  189. math

    in art class there are 5 sheets of drawing paper for 9 people. how much paper will each person get?

    asked by tony
  190. Geology

    What type of rock is grey with white veins along the BOTTOM of the walls? What is the rock's origin?

    asked by Kelley91
  191. Physics

    A projectile is shot from the ground at an angle of 60 degrees with respect to the horizontal, and it lands on the ground 5 seconds later. Find: a. the horizontal component of initial velocity b. the vertical component of initial velocity c. initial speed

    asked by nam maurer
  192. Math

    How do you calculate interest earned using the initial money and ending savings?

    asked by Anonymous
  193. Algebra

    Wat is the factorization of 2x^4+3x^3-38x^2-27x+180=0

    asked by Precious
  194. Business/healthcare

    Under what conditions is a flexible budget more effective than a forecast budget?

    asked by DonnaK
  195. math/science

    what is dimensional analysis and how does it work?

    asked by math
  196. English

    I urgently need you to check these sentences for me because I made some variations. Thank you very much. 1) The head of our science department would like to discuss the theme in further detail with you before deciding which students to include in the

    asked by Henry2
  197. MAth grade 8

    how do you convert 2 4/5 to decimals

    asked by 17halimk
  198. MAth grade 8

    x+5/6 = 3x-5/8 Solve for x

    asked by 17halimk
  199. english

    can you give me a good common sentence that has these words:to,two,and too

    asked by john
  200. Math

    The amount paid to a work crew varies jointly as the number of persons working and the length of time worked. If 5 workers earn $5123.73 in 3.0 weeks, in how many weeks will 6 workers earn a total of $6148.48?

    asked by Jake
  201. math

    85min earlier than 18:50

    asked by faseeh
  202. math

    100minutes earliar than 19:40

    asked by faseeh
  203. English

    I still have a doubt, Could you check this sentence, please? 1) I think it would be best if our science department (head??) teacher would get in touch with you directly so that you can discuss every detail before drawing up the project.

    asked by Henry2
  204. chemistry

    How much of the water (in grams or mL) is consumed to produce 15 mL of the H2 gas

    asked by Ashley
  205. geometry

    h ttp://img64.imageshack.us/img64/574/plotformula.jpg (please remove the space in the link above, because I could not post the full problem) I think that I should use the following: a

    asked by danielle
  206. statistics

    If a company is thinking of giving one department a 1000 bonus. Based on their means and standard deviation scores which set of employess will do better based on this information? Who should get the bonus? Employee A mean 16.875 standard deviation 4.45413

    asked by Linda
  207. Math

    find the x and y intercepts f(x)=9x^2+24x+16 Help

    asked by Allison A
  208. math

    1 hour and 35 minutes before12:00

    asked by faseeh
  209. math

    the area is 16msquare it has to be a square what is the perimeter

    asked by Dylan Hughes
  210. math

    1 hour and 50 minutes before01:30

    asked by faseeh
  211. math

    924cm is how many meters. my shape has to be square what are my measurements converted to meters

    asked by Dylan Hughes
  212. math

    the perimeter is 1000cm. my shape has to be rectangle and convered to meters. what are my deminsions

    asked by Dylan Hughes
  213. math

    solve for x x^2+18x+4=0 is the answer -18 + or -square root symbol 90

    asked by Allison A
  214. Algebra II

    If y varies jointly as w and x, and y is 483 when x is 742 and w is 383, find y when x is 274 and w is 756.

    asked by Ashley
  215. Algebra II

    The amount paid to a work crew varies jointly as the number of persons working and the length of time worked. If 5 workers earn $5123.73 in 3.0 weeks, in how many weeks will 6 workers earn a total of $6148.48?

    asked by Ashley
  216. English

    I added a few more things on a listening comprehension I find it difficult to simplify.I hope you can help me. 1) The House of Lords represented the aristocracy and the Church of England, whereas the House of Commons represented the merchants and the

    asked by Henry2
  217. English- dracula

    What are some examples of moral seriousness in dracula?

    asked by Rebekah
  218. Anthropology11

    does anyone know any good videos on generalized anxiety disorder?

    asked by rebecca
  219. English

    1. It had to be a real diamond. 2. It must have been a real diamond. (Does #1 mean #2? Are both the same?)

    asked by rfvv
  220. math

    the permitter has to be 10m, my shape has to be a rectangle what are my deminsions

    asked by Dylan Hughes
  221. math

    give exact and approximate solutions to three decimal places x^2+8x+16=9

    asked by Allison A
  222. law

    I have a mediation question. 14. If How would a mediator know whether information provided by one of the parties may be shared with the other party? How should he handle this? 16. What effect, if any, would an ongoing financial business relationship

    asked by R.T.
  223. law

    Can you say you are terminating a mediation if both parties show up a mediation and announces that they have settled the problem? Should you still have a caucus with both parties? Are do you terminate mediation?

    asked by R.T.
  224. accounting

    Given the case assignment, do items 1 – 4 1. Draw a partial REA diagram of the XYZ Company’s revenue cycle to model there events: taking customer orders, deliveries, and the use of vehicles. Be sure to include cardinalities 2. Create a set of tables

    asked by TY
  225. Trig/Math

    RST is a triangle with right angle S. If s- 21.3 Angstroms and t=8.71 Angstroms, find the measure of the larger acute angle.

    asked by Gregory
  226. home economics

    What is the maximum amount it would be worth to shareholders to elicit high CEO effort all the time rather low CEO effort all the time?

    asked by cindy
  227. economics

    Suppose you decide to elicit high CEO effort when and if good luck occurs by paying the bonus for $1 billion outcomes only. What criticism can you see with this incentive contract plan?

    asked by cindy
  228. maths

    brand 1 beer contain 8% alcohol and brand2 contain 6.5% of alcohol. how many litres of each alcohol must be added to produce 600 l of a new brand containing 7 % alcohol?

    asked by parth
  229. busi/stats

    list 3 ways we can reduce the size of a sample, none of which has any direct relationship to the size of the population

    asked by Tim
  230. English

    Thank you. I have a doubt on Hamlet's plot. 1) Hamlet's father has been dead only two months, but but his mother, Queen Gertrude, has married her brother-in-law, Claudius, who has now become king. 2) Does it mean that "he had died two months before"? I

    asked by Henry2
  231. english

    which one is correct: 1. the box contains two slides labeled "A" or "B" 2. the box contains two slides labeled "A" and "B"

    asked by Chris
  232. economics

    1. What is the maximum amount it would be worth to shareholders to elicit high CEO effort all the time rather low CEO effort all the time?

    asked by cindy
  233. ISB

    Find the angles of atriangle which are in the ratio 2:3:5. Could someone explain how to do this also. Thnaks.

    asked by Benjamin
  234. English

    Ms. Sue, thanks for your answer. Is there a rule in grammar that I can use to convince someone that #2 is correct? Which one is correct: 1. The box contains two slides labeled "A" or "B". 2. The box contains two slides labeled "A" and "B".

    asked by Chris
  235. Math

    give exact and apporeriate solutions to three decimal places (x-2)^2=12

    asked by Allison A
  236. social studies 7th gr

    Im learning about types of government and need to write advantages and disadvantages for each of the following: do you have website that could help me' 1) theocracy 2) monarchy, 3) dictatorship 4) facisims 5) democracty 6)cnsititutional monarchy 7)

    asked by marko
  237. riddle

    Did you hear about . . . the words are something like away five ten music were who tigers a two cash got the store dough etc .

    asked by Shaila
  238. Environmental Science

    Relate the Fourth Principle of Ecosystem Sustainability to: a. endangered species:, b. agriculture:, c. biotechnology:, d. medicine:

    asked by Hana
  239. Algebra 2

    Factor 6x^2-6y^2 6(x+y(x-y) or 6(x-y)^2 ??

    asked by Anonymous
  240. Math

    can you please let me know if these are correct: 1. 5 5/6 x 2 4/5 = 16 2. 2/3 divided 3/5 = 1 1/9 or 2/5? 3. 7/12 divided 2/3 = 7/8 4. 3 1/2 divided 3/4 = 4 2/3 or 2 5/7 5. 4 2/3 divided 7 = 2/3 6. 4 1/5 divided 1 2/5 = 3 7. 2/5 x 5/14 = 1//7 8. 2/3 + 1/7

    asked by JOSH
  241. Math Problem

    please solve y=3x-5

    asked by Lavern
  242. physics

    explain why air moving over an object can increase its rate of cooling.

    asked by lissa
  243. math

    Find the angles of atriangle which are in the ratio 2:3:5. Could someone explain how to do this also. Thanks.

    asked by Benjamin
  244. XECO/212

    Can you locate recent articles in the New York Times or Wall Street Journal in which economists are quoted using positive and normative statements? Provide one quote and its context for both a positive and normative statement.

    asked by Taunitta
  245. computers

    What type of network is a collection of devices that equally share the processing and storage without having a centralized server? (Points: 5) Client/server File server Peer-to-peer Web-based is it C

    asked by john