Questions Asked on
April 15, 2012

  1. Chemistry

    Consider the voltaic cell Zn(s) + Cu{2+}(aq)--> Zn{2+}(aq)+Cu(s) {}=charge Under standard conditions, what is the maximum electrical work, in Joules that can accomplish if 60 g of copper is plated out?

    asked by Ethan
  2. Carolyn Bessette

    Was Carolyn Bessette Kennedy pregnant when she died in 1999?

    asked by kathy
  3. math

    Divers looking for a sunken ship have defined the search area as a triangle with adjacent sides of length 2.75 miles and 1.32 miles. The angle between the sides of the triangle is 35 degrees. To the nearest 100th, find the search area. 2.08mi 2.9mi 1.04mi

    asked by hill
  4. Chem 1010

    Aqueous solutions of sodium sulfide and silver nitrate are mixed to form solid silver sulfide and aqueous sodium nitrate. The complete ionic equation contains which one of the following terms (when balanced in standard form)?

    asked by Sirena
  5. Chemistry

    In a particular redox reaction, BrO– is oxidized to BrO3– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in acidic solution. Two half reactions: 1.) Cu^2+ --> Cu^+ 2.) BrO^- --> BrO3^- Balanced: 1.) Cu^2+ +e^- --> Cu^+

    asked by miaow
  6. Chemistry

    A voltaic cell utilizes the following reaction and operates at 298K 3Ce{4+}(aq)+Cr(s)--->3Ce{3+}(aq)+Cr{3+}(aq) {}=Charge What is the EMF of this cell under standard conditions? What is emf of cell when [Ce{4+}]=2.1M, [Ce{3+}]=.13M, and [Cr{3+}]=2.0*10^-2

    asked by Ethan
  7. Chemistry - Thermodynamics

    Which one of the following reactions would you expect to have highest ΔS°? Answer A. C2H2(g) + 5/2O2(g) → 2CO2(g) + H2O(g) B. C2H4(g) + 3O2(g) → 2CO2(g) + 2H2O(g) C. CH4(g) + 2O2(g) → CO2(g) + 2H2O(g) D. C2H6(g) + 7/2O2(g) → 2CO2(g) + 3H2O(g)

    asked by Anonymous
  8. college chemistry

    The solvay process in an industrial method for preparing baking soda. In the process, CO2, NH3, H2O, and NaCl react to produce NaHCO3. If 25.0 L of carbon dioxide gas at STP and 20.0 L of ammonia gas at STP react in excess water and salt, what is the mass

    asked by Ana g
  9. math

    if x3+ax2-bx+10 is divisible by x2-3x+2 .find the value of a and b

    asked by rohit
  10. English

    help with the poem accident and emergency by Nessa O'Mahony what is the poem about? what does "assess whose recovery/ would seem the better" suggest about the staffs attitudes?

    asked by finonn
  11. Math

    What is the area of a decagon with a side length of 4cm?

    asked by angela
  12. AP US History (Please help ASAP)

    Why did New York Times call the 1964 World's Fair "a glittering mirror of our national opulence"?

    asked by Farrah
  13. Math 7 - NYS Math Exam Review Help! (Q2)

    9. Eric's mother wants to help him with his math homework. She puts 24 cookies in a cookie jar. Twelve (12) of the cookies are chocolate chip, 8 are oatmeal, and 4 are peanut butter. She then has Eric select a cookie from the jar without looking. Next,

    asked by Laruen
  14. Chemistry 1201

    Butane, C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is 2C4H10(g)+13O(g)-> 8CO2(g)+10H2O(l) At 1.00 atm and 23C , what is the volume of carbon dioxide formed by

    asked by John
  15. math

    Fritz benjamin buys a car costing $12300. He agrees to make payment at the end of each month period for 8 years. He pays 7.2% interest compounded monthly. what is the amount of each payment? find the total amount of interest fritz will pay?

    asked by Sherry
  16. chemistry

    A closed container has a mixture of methane, CH4, ethane C2H6, and propane C3H8. If 12.5 g of methane, 36.0 g of ethane, and 14.0 g of propane have a total pressure of 890. mm Hg, what is the partial pressure of each of the gases in the container?

    asked by josh
  17. Geometry

    A rectangle napkin costs $3.25. A similar tablecloth is five times longer and five times wider. How much would you expect to pay for the table cloth? $81.25 $48.74 $16.25 $32.50

    asked by Jill
  18. Geometry

    Similar ratio and ratio perimeter for two regular octagons with area=18in squared and 50in squared. 9:25, 3:5 or 9:25, 9:25

    asked by Jill
  19. Chemistry

    Explain, in terms of particles, concentration, and reaction rate, what you expect to happen when methane gas (CH4) and hydrogen sulfide gas (H2S) are sealed in a flask and reach a state of equilibrium. CH4 (g) +2 H2S (g) CS2 (g) + 4 H2 (g)

    asked by Johnson
  20. physics

    A 1.6-m-long string fixed at both ends vibrates at resonant frequencies of 792 Hz and 990 Hz, with no other resonant frequency between these values. (a) What is the fundamental frequency of this string? (b) When the tension in the string is 1165 N, what is

    asked by Akbar
  21. 6th G-Math

    If the ratio of men to women in a movie theater is 1.00 when written as a decimal, what must be true? A. The ratio of women to men in the theater is 0.50. B. The ratio of women to men in the theater is 2.00. C. The ratio of women to total people in the

    asked by Lauren
  22. Geometry

    Find the area of a decagon with side of 4cm. Find the area of a pentagon with side length of 10cm Find the area of a hexagon with radius of 5in.

    asked by Jill
  23. programming logic

    Find Bugs in the pseudocode // A high school is holding a recycling competition // This program allows a user to enter a student's // year in school (1 through 4) // and number of cans collected // Data is entered continuously until the user wnats to quit

    asked by tina
  24. physics

    A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 680 nm. Determine the angle that locates the first dark fringe when the width of the slit is each of the following. (b) 1.20 10-6 m

    asked by linds
  25. Chemistry

    I need help with this in order to correctly complete my other related problems. Thank you so much in advance =) Arrange the following 0.1 M solutions in order of increasing pH and state why you placed each solution in that position: NaCH3COO, HCl, HCN,

    asked by Samantha
  26. college physics 44

    An unmarked police car traveling a constant 95km/h is passed by a speeder traveling 14km/h .Precisely 2.50s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 2.30m/s^2 , how much time passes before

    asked by ally
  27. Math 7 - NYS Math Exam Review Help!

    19. The circumference of the circle below is 25.12 centimeters ***** There is a circle and then there is a line and written radius C = 2(pi)r Which is the best estimate for the length of the radius of the circle? a) 3 cm b) 4 cm c) 8 cm d) 16 cm please

    asked by Laruen
  28. Physics please help!

    A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 680 nm. Determine the angle that locates the first dark fringe when the width of the slit is each of the following. (b) 1.20 x 10^-6 m

    asked by linds
  29. intro to physics

    a toy rocket moving vertically upward passes by a 2.2m- high window whose sill is 7.0m above the ground. the rocket takes 0.17s to travel the 2.2m height of the wondow part a): what was the launch speed of the rocket ? assume the propellant is burned very

    asked by emilia
  30. chemistry

    Find for this reaction as written. (Use 1.0 for the density of the solution and 4.18 as the specific heat capacity.) When 0.129 of is combined with enough to make 53.8 of solution in a coffee-cup calorimeter, all of the zinc reacts, raising the temperature

    asked by dtost
  31. Chemistry

    I need help with this in order to correctly complete my other related problems. Thank you so much in advance =) Arrange the following 0.1 M solutions in order of increasing pH and state why you placed each solution in that position: NaCH3COO, HCl, HCN,

    asked by Samantha
  32. Geometry Multiple Choice

    A rectangle napkin costs $3.25. A similar tablecloth is five times longer and five times wider. How much would you expect to pay for the table cloth? $81.25 $48.74 $16.25 $32.50

    asked by Jill
  33. thermodynamics

    deremine (a) the work done and (b) the change in internal energy of 1.00 kg of water when it is all boiled to steam at 100c. Assume a constant pressure of 1.00 atm and heat of vaporisation = 2260000 J.

    asked by frank fred
  34. physics help!!

    A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 680 nm. Determine the angle that locates the first dark fringe when the width of the slit is each of the following. (b) 1.20 10-6 m

    asked by Anonymous
  35. Chemistry 1201

    Butane, C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is 2C4H10(g)+13O(g)-> 8CO2(g)+10H2O(l) At 1.00 atm and 23C , what is the volume of carbon dioxide formed by

    asked by John
  36. chem

    Hey could you please help me. Why would K2CO3 be a better drying agent than Na2SO4 when drying out water from clohexanol?

    asked by Bob
  37. physics

    When a tuning fork is held over the open end of a very thin tube, as in the figure below, the smallest value of L that produces resonance is found to be 33.0 cm. (a) What is the wavelength of the sound? [Hint: Assume that the displacement antinode is at

    asked by Jolie
  38. Physics

    An aquarium filled with water has flat glass sides whose index of refraction is 1.48. A beam of light from outside the aquarium strikes the glass at a 43.5º angle to the perpendicular . The angle this light ray enters the glass is 27.7º, what is the

    asked by ####Nadine####
  39. math

    A rectangular piece of posterboard measures 60 centimeters by 80 centimeters. You draw a net of a box on the poster board and cut it out. If the box measures 10 centimeters by 16 centimeters by 27 centimeters, what is the area of the poster board left?

    asked by Me!!
  40. Chemistry(Please help)

    Calculate the concentration of HC6H6O6- in an aqueous solution of 0.0851 M ascorbic acid, H2C6H6O6 (aq). I do not know how to start this

    asked by Hannah
  41. Chemistry

    A voltaic cell utilizes the following reaction and operates at 298K 3Ce{4+}(aq)+Cr(s)--->3Ce{3+}(aq)+Cr{3+}(aq) {}=Charge What is the EMF of this cell under standard conditions? What is emf of cell when [Ce{4+}]=2.1M, [Ce{3+}]=.13M, and [Cr{3+}]=2.0*10^-2

    asked by Ethan
  42. college chemistry

    Lithium metal decomposes in water and releases hydrogen gas. if 275 ml of hydrogen gas is produced at stp. what is the mass of lithium that reacted ? Li(s)+H2O(l)=LiOH(aq)+H2(g)

    asked by Ana g
  43. Chemistry 1201

    When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction CaCO3(s)->CaO(s)+CO2(g) What is the mass of calcium carbonate needed to produce 53 L of carbon dioxide at STP?

    asked by John
  44. physics

    A room has a volume of 164 m3. An air-conditioning system is to replace the air in this room every 26.8 minutes, using ducts that have a square cross section. Assuming that air can be treated as an incompressible fluid, find the length of a side of the

    asked by RC
  45. thermodynamics

    deremine (a) the work done and (b) the change in internal energy of 1.00 kg of water when it is all boiled to steam at 100c. Assume a constant pressure of 1.00 atm and heat of vaporisation = 2260000 J.

    asked by frank fred
  46. Math 7 - HW Question Check (Q3)

    Kevin designs sprinkler system for his yard. One rotation of the sprinkler waters a circle with an area of 225(pi) square feet. What is the radius, r, of the circle the rotating sprinkler waters? a) 15 ft b) 25 ft c) 30 ft d) 47 ft Answer - A Why?: A =

    asked by Laruen
  47. physics please help !

    A helicopter is ascending vertically with a speed of 5.20m/s . At a height of 110m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: for the package equals the speed of the

    asked by maya
  48. physics

    A ship mapping the depth of the ocean emits a sound of 37 kHz. The sound travels to the ocean floor and returns 0.65 s later. (a) How deep is the water at that location? m (b) What is the wavelength of the wave in water? cm (c) What is the wavelength of

    asked by Anonymous
  49. science

    A 1.4 kg ball and a 3.0 kg ball are connected by a 1.0 m long rigid, massless rod. The rod is rotating cw about its center of mass at 24 rpm. What torque will bring the balls to a halt in 4.2 s?

    asked by james
  50. Geometry.

    A park has a circular swimming pool. The diameter of the pool is 18 ft. What is the distance traveled if you swim around the edge of the pool once? Use pi = 3.14 A) 36 ft B) 169.65 ft C) 113.10 ft D) 56.52 ft I think it is [D] but I'm not sure.

    asked by Joe
  51. physics

    Two stars are 3.80 1011 m apart and are equally distant from the earth. A telescope has an objective lens with a diameter of 1.19 m and just detects these stars as separate objects. Assume that light of wavelength 550 nm is being observed. Also assume that

    asked by linds
  52. physics

    Just as a car tops a 51 meter high hill with a speed of 84 km/h it runs out of gas and coasts from there, without friction or drag. How high, to the nearest meter, will the car coast up the next hill?

    asked by 18
  53. Chemistry

    calculate the the pH of a buffer solution containing 0.246 M NH3 and 0.0954 M NH4Cl (for NH3 Kb = 1.74x 10-5)

    asked by David
  54. Calc

    Radioactive radium () has a half-life of 1599 years. What percent of a given amount will remain after years?

    asked by Pamela
  55. trig

    A submersible traveling at a depth of 250 feet dives at an angle of 15 degrees with respect to a line parallel to the water's surface. It travels a horizontal distance of 1500 feet during the dive. What is the depth of the submersile after the dive?Explain

    asked by Sara
  56. calculus

    Evaluate the integral: 37/x^3-125

    asked by stephanie
  57. physics

    a helicopter is ascending vertically with a speed of 5.20 m/s. at a height of 100 m above the Earth, a package is dropped from a window. how much time does it take for the package to reach the ground ? (hint: v0 for the package equals the speed of the

    asked by henry
  58. chemistry

    Balance each of the following equations a)CH4+CL2......>CCl4+HCl b)AL(OH)3+H2SO4.....>Al2(SO4)3+H2O c)Fe+H2O......>fe3O4+H2 d)Al4C3+HCl......>AlCl3+CH4 e)C2H6+O2......>CO2+H2O f)P2H4.......>PH3+P4 g)S2Cl2+NH3......>N4S4+NH4CL+S8

    asked by faisal
  59. Environmental Science

    7. Which of the following terms is used to describe a linear sequence in which energy is transferred from one organism to the next as each organism eats another organism? a. trophic level b. food web c. energy pyramid d. food chain D 10. Which of the

    asked by mysterychicken
  60. CALCULUS PLEASE HELP!!

    suppose m(0) milligrams of a drug are put in the blood of an injection. The amount of drug t hours after the injection is given by m(t)=m(o)e^-kt, for t (=>) 0, where k is the rate constant, which is related to the half life. we also treat oral

    asked by Jake
  61. physics

    a helicopter is ascending vertically with a speed of 5.20 m/s. at a height of 110 m above the Earth, a package is dropped from a window. how much time does it take for the package to reach the ground ? (hint: v0 for the package equals the speed of the

    asked by mary
  62. Environmental Science

    7. Which of the following terms is used to describe a linear sequence in which energy is transferred from one organism to the next as each organism eats another organism? a. trophic level b. food web c. energy pyramid d. food chain D 10. Which of the

    asked by mysterychicken
  63. physics

    If a lead bullet goes fast enough, it can melt completely when it comes to a halt suddenly, and all it's kinetic energy is converted into heat via friction. Find the minimum speed of a lead bullet (initial temp. = 30.0 C) needed for this to happen. So I

    asked by Daniel
  64. Chemistry

    Calculate the Concentration of Ni2+ in a soltion which prepared as mixing 50.0ml 0.0300 M Ni2+ and 50.0mlml 0.0500 M EDTA at pH= 3 At pH=3 , α4= 2.5x10-11 KNiY=4.2x1018

    asked by David
  65. @elena

    i noticed you helped a lot of people with their questions with physics ? can you hep me out please ? In putting, the force with which a golfer strikes a ball is planned so that the ball will stop within some small distance of the cup, say 2.00m long or

    asked by JACK
  66. American Government One Question Please Help!

    Identify goals of American foreign policy that have changed since the end of the Cold War. Describe goals that have remained virtually the same. Thank You I Really Appreciate Your Help!!!!!!!!!!!!! ^-^

    asked by LeXi<3
  67. College Chem 1010

    Which of the following compounds is insoluble? Question 4 options: A) Ca(NO3)2 B) FePO4 C) NH4OH D) Na2SO4 E) NaCl

    asked by Sirena
  68. chemistry

    you dissolve 0.70 moles of HCI in enough water to prepare 250ml of solution. what is the molarity of the solution you have prepared

    asked by aileen
  69. physics - college

    An unmarked police car traveling a constant 95km/h is passed by a speeder traveling 14km/h .Precisely 2.50s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 2.30m/s^2 , how much time passes before

    asked by bill
  70. Chemistry

    Cytochrome, a complicated molecule that we will represent as CyFe2+, reacts with the air we breathe to supply energy required to synthesize adenosine triphosphate (ATP). At pH 7.0 the following reduction potentials pertain to this oxidation of CyFe2+:

    asked by Ethan
  71. Physics

    Student ties 0.060kg lead fishing weight to the end of a piece of string and whirls it around in a horizontal circle.if the radius of the circle is 0.30m and the object move with a speed of 2.0m/s..what is the horizontel component of d force that directs

    asked by Sunshine
  72. physics help !

    a baseball pitcher throws a baseball with a speed of 38m/s. estimate the average acceleration of the ball during the throwing motion,. in throwing the baseball, the pitcher accelerates the ball through a displacement of about 3.5 m from behind the body to

    asked by JACK 33
  73. Calculas

    suppose m(0) milligrams of a drug are put in the blood of an injection. The amount of drug t hours after the injection is given by m(t)=m(o)e^-kt, for t (=>) 0, where k is the rate constant, which is related to the half life. we also treat oral

    asked by Jake
  74. Physics Question

    Some rearview mirrors produce images of cars behind you that are smaller than they would be if the mirror were flat. What is a mirror's radius of curvature if cars 23.0 m away appear .36x their normal size? I got .24 meters but it is wrong??

    asked by ###Nadine####
  75. physics

    Icebergs in the North Atlantic present hazards to shipping, causing the length of shipping routes to increase by about 30 percent during the iceberg season. Attempts to destroy icebergs include planting explosives, bombing, torpedoing, shelling, ramming,

    asked by anonymous
  76. physics - college

    An unmarked police car traveling a constant 95km/h is passed by a speeder traveling 14km/h .Precisely 2.50s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 2.30m/s^2 , how much time passes before

    asked by bill
  77. h.s. physics

    a baseball pitcher throws a baseball with a speed of 38m/s. estimate the average acceleration of the ball during the throwing motion,. in throwing the baseball, the pitcher accelerates the ball through a displacement of about 3.5 m from behind the body to

    asked by JACK
  78. geometry

    Two lines intersect to form two pairs of vertical angles.Angle 1 with measure (20x + 7) degrees and angle 3 with measure (5x + 7y + 49) degrees are vertical angles. Angle 2 with measure (3x - 2y + 30) degrees and angle 4 are vertical angles.Find the values

    asked by Tyler
  79. h.s physics

    a baseball pitcher throws a baseball with a speed of 38m/s. estimate the average acceleration of the ball during the throwing motion,. in throwing the baseball, the pitcher accelerates the ball through a displacement of about 3.5 m from behind the body to

    asked by JACK
  80. math

    1. The sales tax in TN on nonfood items is 7%. Which equation shows the relationship of the price of an item p to the total cost of c? A) p=1.07c B) c=1.07p C) p=7c D) c=7p I think the answer is D. 2. Which relation is not a function? A) y=3x2 B) y=1x+31

    asked by Hayley
  81. physics

    An unmarked police car traveling a constant 95km/h is passed by a speeder traveling 14km/h .Precisely 2.50s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 2.30m/s^2 , how much time passes before

    asked by kelly
  82. intro. to physics

    a helicopter is ascending vertically with a speed of 5.20 m/s. at a height of 100 m above the Earth, a package is dropped from a window. how much time does it take for the package to reach the ground ? (hint: v0 for the package equals the speed of the

    asked by emilia
  83. Geometry

    A park maintenance person stands 23 m from a circular monument. If you assume her lines of site are tangents to the monument and make an angle of 23degrees, what is the measure of the monument that her lines of site intercect?

    asked by Courtney
  84. Geometry

    Two straight pipes intersect under a circular garden and intercept non-adjacent arcs that measure 34 degrees and 108 degrees. What is the measure of the acute vertical angles formed where the two pipes intersect?

    asked by Courtney
  85. math

    Which transformation moves the figure from position A to position B? then it shows a picture of a heart like one that's facing u and the other one is sideways. is the answer a-rotation, b-reflection, c translation d-rotation and translation, i think its d

    asked by Gabby ( 5 grade)
  86. PHYSICS

    A CAR IS TRAVELING TOWARDS YOU AT 70.0 MI/H. THE CAR HORN PRODUCES A SOUND AT A FREQUENCY OF 5000HZ. WHAT FREQUENCY DO YOU HEAR?

    asked by ~ALICE~
  87. Chemistry

    A limiting reactants problem. 6.32g of sodium sulfate is reacted with 12.03g of barium nitrate. How many grams of the precipitate would you expect to collect. The answer my teacher gave me is 16.0g BaSO4, but I cannot get it. The equation I formed is:

    asked by Lindsey
  88. physics please help!

    find the speed of sound (in m/s) at -35°C at 1 atm pressure in dry air

    asked by jeff
  89. math

    which figure does not show a line of symmetry? there's a n isosceles triangle, a wide hexagon, a rectangle and a long pentagon i think its either the rectangle or the wide hexagon.

    asked by Gabby ( 5 grade)
  90. physics

    A monatomic ideal gas (Cv = 3/2 R) undergoes an isothermal expansion at 300 K, as the volume increased from .05 m^3 to .15 m^3 The final pressure is 130kPa The heat transfer to the gas, in kJ, is closest to?

    asked by Marcyel
  91. Physics

    A 1.6-m-long string fixed at both ends vibrates at resonant frequencies of 792 Hz and 990 Hz, with no other resonant frequency between these values. (a) What is the fundamental frequency of this string? (b) When the tension in the string is 1165 N, what is

    asked by Akbar
  92. Reposting Chemistry College

    Based on the balanced equation 4Na + O2 → 2Na2O calculate the number of Na2O formula units formed when 60 Na atoms and 10 O2 molecules react? Thanks.

    asked by Lance
  93. physics

    A 2 kg metal plate slides down a 14-meter high slope. At the bottom its speed is 11.1 m/s. To the nearest Joule, what was the magnitude of the work done by friction?

    asked by 18
  94. math

    A student has a mean score of 88 on five tests taken. What score must she obtain on her next test to have a mean (average) score of 80 on all six tests?

    asked by Tricia
  95. Physics

    An aquarium filled with water has flat glass sides whose index of refraction is 1.48. A beam of light from outside the aquarium strikes the glass at a 43.5º angle to the perpendicular . The angle this light ray enters the glass is 27.7º, what is the

    asked by Charlie
  96. Health

    Hair follicles, sweat glands, and sebacesous glands can all be found in the ------ layer of the skin, which is considered to be true skin A. basal B. Dermal C Epidermal D. Subcutaneous My answer is (c )

    asked by Brenna
  97. math

    scott bought a watch for 48 U.S. dollars. What is the cost of the watch in swiss francs? 1 U.S. dollar = 1.02 swiss francs show ur work 2) scott would like to buy a battery for 10 U.S. dollars. He has 10.20 Swiss francs remaining after buying the watch. On

    asked by Hart
  98. geometry

    two sides of an equilateral trianlge measure (2y+3) units and (y^2-5) units. if the perimeter of the triangle is 33 units, what is the value of y?

    asked by Tyler
  99. physics

    Tension is maintained in a string by attaching one end to a wall and by hanging a 2.34 kg object from the other end of the string after it passes over a pulley that is 2.00 m from the wall. The string has a mass per unit length of 3.45 mg/m. What is the

    asked by Akbar
  100. College Chem

    Based on the balanced equation 4Na + O2 → 2Na2O calculate the number of Na2O formula units formed when 60 Na atoms and 10 O2 molecules react? Thanks.

    asked by Lance
  101. PHYSICS

    A CAR IS TRAVELING AWAY FROM YOU AT 70.0 MI/H. THE CAR HORN PRODUCES A SOUND AT A FREQUENCY OF 5000HZ. WHAT FREQUENCY DO YOU HEAR?

    asked by ~ALICE~
  102. calculus

    Interference Two identical tuning forks are struck, one a fraction of a second after the other. The sounds produced are modeled by f1(t) = C sin(wt) and f2(t) = C sin(wt + Alpha). The two sound waves interfere to produce a single sound modeled by the sum

    asked by Yasha
  103. math

    Prove the identity: cos^4(x)-sin^4(x)=1-2sin^2(x).with explanation im confused on this one cause of the 4th power of the sine. does this mean that we put it in the calculator 4 times? and what exactly does it mean by prove the identity- does it mean like

    asked by Anonymous
  104. chemistry

    What quantity of heat would be evolved if 1.00g of sodium vapor condensed at its normal boiling point?

    asked by Louise
  105. physics

    A pendulum has a mass of 3.6 kg, a length of 2.1 meters, and swings through a (half)arc of 26.2 degrees. What is its amplitude to the nearest centimeter?

    asked by 18
  106. physics

    If the slope in the above problem is 48 degrees, what is the coefficent of friction (to 2 decimal places)?

    asked by 18
  107. l.o

    xenophobia in environmetal factor

    asked by thabani
  108. Physics Question

    Pulsed lasers used in science and medicine produce very short bursts of electromagnetic energy. If the laser light wavelength is 1062 nm (this corresponds to a Neodymium-YAG laser), and the pulse lasts for 40 picoseconds, and 1.1 x 104 wavelenghs are found

    asked by ###Nadine####
  109. Ecomomics

    Under what conditions migh an increase in the minimum wage not reduce the number of low-wage jobs? How much of a job loss is acceptable?

    asked by Anonymous
  110. chem1151

    please me solve During an experiment to measure the efficacy of an antacid tablet, an antacid tablet was dissolved in deionized water. Then 75.0 milliliters of 0.268 M HCl solution were added to the flask containing the dissolved tablet. How many moles of

    asked by linda
  111. Math

    One bag contains 2 green marbles and 4 white marbles and a second bag contains 3 green marbles and 1 white marble. If Jon randomly draws one marble from each bag what is the probability that they are both green?

    asked by William
  112. chem 101

    Biphenyl (C1 2H1 0) burned in a bomb calorimeter in order to determine its heat of combustion. The heat capacity of the calorimeter was 5.86 kJ/°C When 0.514 g of biphenyl was burned, the temperature of the calorimeter increased from 25.8 °C to 29.4 °C.

    asked by Anonymous
  113. chem 101

    This is second part is built off the first question. These are all from a practice test. How much heat is required to raise the temperature of exactly one liter of water fro m 60 °F to 180 °F? correct answer: 279kj How much alcohol must be burned to

    asked by Anonymous
  114. physics

    To the nearest tenth of a Joule, what is its maximum kinetic energy of the pendulum in problem 2?

    asked by 18
  115. Pysics

    An aquarium filled with water has flat glass sides whose index of refraction is 1.48. A beam of light from outside the aquarium strikes the glass at a 43.5º angle to the perpendicular . The angle this light ray enters the glass is 27.7º, what is the

    asked by Charlie
  116. Math

    Math huron scored 84% on her last history test. Of she got 21 answers correct , how many question did the test have?

    asked by Jo
  117. trigonometry

    given that sin alpha/2 = 2/3, and that alpha/2 is in quadrant II, determine the exact values of all trig functions for alpha.

    asked by kiko
  118. physics

    When you increase the number of turns in a coil to induce more voltage, you do which of the following?. A) only get more voltage if the resistance of the larger coil remains unchanged.B) None of the above.C) do more work to induce the greater voltage.D)

    asked by Phillip
  119. Math

    The diameter of a circle is 130 cm, and a chord of the circle is 66 cm long. What is the distance between the chord and the center of the cirlce?

    asked by Courtney
  120. math

    which figure does not show a line of symmetry? there's an isosceles triangle, a wide hexagon, a rectangle and a long pentagon i think its either the rectangle or the wide hexagon.

    asked by Gabby ( 5 grade)
  121. Geometry

    in a circle of radius 11 cm, find the area of the segment bounded by an arc of measure 60 degrees and the chord joining the endpoints of the arc. A. 12.9 cm B. 122.5 cm C. 11.0 cm D. none of these

    asked by Courtney
  122. algebra

    If one runner can run 10 meters in one second and another runner can run 6 meters in one second and the slower runner is given a 70 meter head start, how long will it be before the faster runner catches the slower runner?

    asked by Gloria
  123. Science

    Why are space telescopes able to make better observations in the ultraviolet and infrared ranges than ground-based telescopes? A)space telescopes are closer to the objects that they are observing B) the atmosphere absorbs or reflects much of the UV and IR

    asked by Elena
  124. math

    The javelin event is held on the field inside the track. This field is a rectangle measuring 100 meters by 64 meters, with a semicircle at each end. Early modern Olympic javelins were designed so well that javelin throwers could throw them beyond the field

    asked by ahmed
  125. math

    Use the appropriate sum/difference formula to find the exact value of cos(105°). do we choose one, then make 1 side equal cos of 105°? I don't understand the question.

    asked by Anonymous
  126. physics

    To the nearest tenth of a Joule, what is the total energy of the pendulum in problem 2?

    asked by 18
  127. math

    Suppose you had d dollars in your bank account. You spent $9 but have at least $40 left. How much money did you have initially? Write and solve an inequality that represents this situation.

    asked by Anahi
  128. algebra

    Aaron is 13 years older than shelby. in nine years, Aaron will be twice as old as shelby. how old is shelby?

    asked by Evelyn
  129. History

    Q: What action did the United States NOT take against Japan before the attack on Pearl Harbor? Choices are: A. cut off the sale of oil and metal to Japan B. sent the Japanese ambassador back to Japan C. froze all the Japanese assets in the United States D.

    asked by Samantha
  130. Geometry

    The measure of the central angle of a sector of a circle is 90degrees. The arc length of the sector is 3(pie) cm. What is the radius of the circle?

    asked by Courtney
  131. Geometry!

    The distance around the equator of Saturn is about 378,675 km. What is the equatorial diameter of Saturn? Use pi = 3.14. A) 241,209 B) 241,194 C) 120,584 D) 120,597 I think it is [D] but I'm not sure.

    asked by Joe
  132. geometry

    two sides of an equilateral trianlge measure (2y+3) units and (y^2-5) units. if the perimeter of the triangle is 33 units, what is the value of y?

    asked by Tyler
  133. algebra

    Ginas previous garden she was able to plant 2 rows of corn in a 5 foot long space and 5 rows of corn in a 11 foot long space. find a linear equation for the length of the bed (y) in which she can fit x rows of corn.

    asked by Anonymous
  134. Math

    You have equally likely chance of choosing any number from 1 to 10. What is the probability that you choose a number greater than 6?

    asked by Tim
  135. reading

    the purpose of the 1st paragraph is to introduce the topic of seals washing ashore in large numbers this year that's what i put, give details about how animals are treated at the center, come to conclusion about why so many seals have washed ashore this

    asked by Gabby ( 5 grade)
  136. English

    I left out the following questions. Thank you very much, Writeacher. 1) First, the organization collects information. When it has proof that a person is a prisoner of conscience, it hands over that person’s case to a local group. 2)This group send (or

    asked by Matthew
  137. @ elena - intro to physics

    I posted this question earlier and thank you for respnding, but the answer you give me was incorrect. I try looking at hw you solve and cant find the mistake but when when I check your answer it said it was wrong. Can you please look over it again, I

    asked by emilia
  138. 6th grade comedy

    "Abbott: Oh, I'll tell you their names, but you know it seems to me they give these ball players now-a-days very peculiar names. Costello: You mean funny names? Abbott: Strange names, pet names...like Dizzy Dean... Costello: His brother Daffy. Abbott:

    asked by kathy
  139. English 7 Help! - please read

    In the second paragraph the author writes "Of all the things for which Jamie held a soft spot in her heart, the tree house was perhaps the dearest". What does the phrase "soft spot" mean in this sentence? My Answer - the part that is soft.... ok im having

    asked by Laruen
  140. function of x

    the function f(x) 100,000x/100-x models the cost in dollars for removing x percnet of the pollutants from a bayou in which a company dumped creosol. find the cost of removing 60 and then 80% of the pollutants from the bayou. Can the company every remove

    asked by Anonymous
  141. Transportation and Cargo Secuirty

    Identify an asset such as an airport or a shipping company within the global transportation system. What does this mean? What is an asset of an airport or shipping company?

    asked by chris
  142. algebra

    Assume that Y varies directly as X. If Y = -11 when x = -4, find Y when x = 6.

    asked by cassie
  143. College Chem

    Based on the balanced equation 4Na + O2 → 2Na2O calculate the number of Na2O formula units formed when 60 Na atoms and 10 O2 molecules react? Thanks.

    asked by Lance
  144. books

    We reading animal farm in english class so we have been asked to write an article about the battle of the windmill that takes place in chapter 8 and we are instructed to be biased towards of the animals. Can you please give me any points that I should

    asked by Khabo
  145. math

    Mrs smith sold 200 shares of a stock for 5,975 dollars, when the price per share went down 3 bucks she bought 100 more shares, when the price per share went back up 5 bucks she sold 50 shares . How much did Mrs smith gain or lose in her transactions?????

    asked by big boi john
  146. Pre-calc help please!!!

    1) tan(sin^-1(5/6)-cos^-1(1/7) 2) tan(è + ); cos è = − 1/7,è in Quadrant III, sin = 1/2, in Quadrant II

    asked by Tenshi
  147. chemistry

    An x molal sol. of a compoumd in benzene has mole fraction of solute equal to 0.2 the value of x will be?

    asked by Shbnm
  148. physics

    A block of ice at 0°C whose mass initially is m = 48.4 kg slides along a horizontal surface, starting at a speed vo = 4.91 m/s and finally coming to rest after traveling a distance d = 12.28 m. Compute the mass of ice melted as a result of the friction

    asked by anonymous
  149. Calc Help!!!!!!!!!!!!!!!!1

    tan(sin^-1(5/6)-cos^-1(1/5)

    asked by John
  150. intro to the law of torts

    Requirements to prevail on an intrusion upon seclusion privacy claim include: a) The defendant's use of the plaintiff's identity. b) The intrusion is highly offensive to a reasonable person. c) Facts were disclosed to a third party. d) a and c. e) None of

    asked by michelle
  151. physics

    A 53-kg skier is going down a 30 ° slope. The area of each ski in contact with the snow is 0.12 m2. Determine the pressure that each ski exerts on the snow.

    asked by RC
  152. math

    Ms.Lembright ordered the types of muffins below for a class party -12 blueberry muffins for $7.20 -8 chocolate muffins for $4.40 -6 raisin muffins for $4.50 What type of muffin cost the least? show your work please help me!!?

    asked by ashley
  153. math

    A lady buys three items in the shop. The total cost of the items is $90.09.It so happens that if the prices are multiplied they still come to $90.09! What are the prices?

    asked by steve
  154. Chem 1010

    Determine the molarity of a solution made by dissolving 13.8 g of sodium chloride in enough water to make 750.0 mL of solution. (The MM of NaCl is 58.44 g/mol)

    asked by Sirena
  155. maths

    A TRENCH OF 2.5 MTS AND DEPTH OF 2 MTS IS DUG OUTSIDE AN RECTANGLE FEILD OF LENGTH OF 250 MTS AND BREADTH OF 200 MTS. THE MUD FROM THE TRENCH WAS EVENLY DISTRIBUTED IN THE RECTANGULAR FIELD. FIND THE INCREASE IN THE HEIGHT OF THE FIELD.

    asked by Anonymous
  156. math

    micheal drew a triangle with the sides measuring 12.5cm,30cm,32.5cm. using the pythagoream theorm determine of micheals triangle is a right triangle. explain. PLEASE HELP ME WITH THIS ONE!!

    asked by justin
  157. Chemistry

    What is the percent by weight of a solution prepared by dissolving 25 g of NaCl in 150 g of water? What is the volume of water in a 1 L bottle of 37% rubbing alcohol by volume?

    asked by Hannah
  158. Chemistry

    When 3.00 g potassium carbonate (K2CO3 ) was mixed with 20.0 mL of hydrochloric acid (HCl, 4.0M) in a calorimeter, the temperature raised 3.0 degrees Celsius. B. Calculate the enthalpy change (H) of the reaction for per mole patassium carbonate. Assume

    asked by Luis
  159. Physics

    An unmarked police car traveling a constant 80 km/h is passed by a speeder traveling 125 km/h. Precisely 3.00 s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 2.40 m/s^2, how much time passes

    asked by Kim
  160. banking and financial services management

    The Hypothetical Finance Ltd has structured a hire-purchase deal. The required to make a down payment of 20 per cent of the investment cost. The hire-term is four years with quarterly payment in advance. The flat rate of interest is 13 per cent. The

    asked by kishor
  161. physics

    An electric motor best makes use of the fact that on a current-carrying wire in a magnetic field there exists which of these?. A) electromagnetic energy to be tapped.B) rotation.C) All of these.D) a force.E) a changing voltage. Is this roation or all of

    asked by Christy
  162. math

    it says which tally chart shows the data used in the bar graph? then it shows pictures of graphs and in 1 it shows cakes, cookies, pie, and ice cream. the first 1 shows 30 tally marks 4 cakes 13 tally marks 4 cookies 10 tally marks 4 pie 23 tally marks 4

    asked by Gabby ( 5 grade)
  163. reading

    explain why busy season for marine animal rescuers is a tall tale. use 3 examples from the story to support your answer.what is a tall tale?

    asked by Gabby ( 5 grade)
  164. English

    I left out two sentences because I'm finding it difficult to send you my post all together. 3) It is an organization that will only be satisfied when it has become redundant. Does this sentence mean that it will go on working until its work becomes

    asked by Matthew
  165. HISTORY

    The minister sent to Mexico in 1845 had strict orders to accomplish what as his primary goal? A. Secure Mexican approval of the annexation of Texas B. Purchase California for $25 million C. Get Mexico to grant their claims to Oregon to the US D. Settle the

    asked by student
  166. h.s. physics

    In putting, the force with which a golfer strikes a ball is planned so that the ball will stop within some small distance of the cup, say 2.00m long or short, in case the putt is missed. Accomplishing this from an uphill lie (that is, putting the ball

    asked by JACK
  167. Math 12 (Logs)

    Solve: 3^(2a+3)=7^(a-4) Please Help and Thank you

    asked by Anonymous
  168. transportation and cargo security

    Research the various U.S. transportation systems and identify the appropriate one to use for your case study. Research the selected system carefully and prepare a brief summary. The summary should include the following: An introduction to the system.

    asked by chris
  169. physics

    Calculate the power of a device that requires 1.98 mA at 25.5 V. I know how to do the problem. i am just confused on how to convert megaAmps(which is mA right?) to amps. i think there are 1million amps in one mega amp? is that correct or is it the other

    asked by hannah
  170. Math

    What is the x-coordinate of the image of P(5,11) under R-0,90*-?

    asked by Erin
  171. Chemistry

    In a gas chromatography experiment, an internal standard was used. Which is considered the blank in this experiment:- 1) Internal standard in diluent or 2) Diluent only or are 1) & 2) both acceptable?

    asked by jean
  172. java

    Write a program that will find the lowest common denominator of two numbers. The user will enter the two denominators, the program will output both the lowest common denominator and the multipliers required for each fraction. For example, if the user is

    asked by tj
  173. Chemistry

    How many grams of Calcium Nitride can be produced using the calcium contained in 100 ml of a 4 Molar beryllium solution?

    asked by momo
  174. algebra

    could you please show me how to do this problem? Bob rows 6 miles downstream in 1 hr, joe rows 6 miles upstream in 2 hr. joe rows 1 mile per hour faster. a. what is each of their speed, bob 6/1=6mph joe 6 + 1 = 7mph is this right?? b. what is the current

    asked by ann
  175. geometry

    A circle of radius r is centered at the origin and a rectangle is inscribed. The area of the rectangle as a function is given by what? Can you also explain the processes behind finding the answer it helps me understand.

    asked by david
  176. physic

    A roller coaster car (390 kg) moves from A (5.00 m above the ground) to B (19.0 m above the ground). Two nonconservative forces are present: friction does -2.00 104 J of work on the car, and a chain mechanism does +3.00 104 J of work to help the car up a

    asked by cn
  177. mechanical systems

    how much heat is required to warm 1500 gallons of water from 70 to 140 degrees F?

    asked by Steve
  178. history

    explain why international tensions increased during the crisis over manchuria in 1931-1933?

    asked by ...
  179. English

    how has the world changed for the better? besides technology & medicine

    asked by Jess
  180. math

    mike knits and sells them for $36 at the street fair every other week. it costs him about $19 for the yarn for each scarf and $8 for the other decorations he uses on them.mike estimates that he makes about 75% profit on each scarf he sells. is mike's

    asked by lauren
  181. Economics

    5. A firm's marginal cost of production is constant at $5 per unit, and its fixed costs are $20. Draw its total, average variable and average costs. Marginal Cost (MC): $5 per unit Fixed Cost (FC): $20 Total Cost (TC): $25 Average Variable Cost (AVC): $5

    asked by Daisy
  182. chemistry

    A sample of Cl2 gas having a volume of 0.75 L at 20degrees C and 725mmHg has a mass equal to

    asked by srihitha
  183. math

    1. Which situation is not a function? a) the number of days d below freezing each month b) the total cost of an item that costs x dollars with 7% sales tax c) the number of miles driven at a constant speed of 45 miles per hour after x hours d) the total

    asked by Hayley
  184. history grade 10

    slavery before 1844, how were the slaves treated, did they have any right?

    asked by kyle
  185. chemistry

    The electron pairs in a molecule of NH3 form a tetrahedron. Why does the NH3 molecule have a trigonal pyramidal shape rather than a tetrahedral shape? Explain your answer. PLEASE HELP

    asked by Britt
  186. history grade 10

    Could you help explain if imperialism lead to a better life for immigrants to Canada?

    asked by kyle
  187. life orientation

    A clear explanation of the consequences of this human factor

    asked by Nosipho
  188. history grade 10

    Could you please help explain if imperialism lead to a better life for Canada's indigenous people?

    asked by kyle
  189. Math

    Math huron scored 84% on her last history test. Of she got 21 answers correct , how many question did the test have?

    asked by Jo
  190. physics

    A toy rocket is shot vertically from the base of a multiple level parking garage. the rockets height in feet is modeled by the equation h(T)= -16T squared+ 128 T, where T is the time in seconds if the rocket just reaches the top of the parking garage, how

    asked by Dulce
  191. health

    How can is the importance of health documentation on patient services can affect reimbursement ?

    asked by joan
  192. math

    is 32oz a half gallon

    asked by jay
  193. math

    whats the product of -8x^2y and-2xy^3? use law of exponents to find the product. show your work. please helppp

    asked by Karley
  194. physics

    b. If you are cruising down the road at 50 mph and a policeman with a radar gun (wavelength 1 cm) reflects radar light off your bumper, what wavelength of radar light does he get back? Assume the policeman is stationary, and you are moving towards him.

    asked by DJ
  195. English

    Is the following sentence punctuated correctly? The neighbors’ new dog is small, quiet, and shy.

    asked by April
  196. Statistics

    The makers of the MAGNETIZER Engine Energizer System (EES) claim that it improves gas mileage and reduces emissions in automobiles by using magnetic free energy to increase the amount of oxygen in the fuel for greater combustion efficiency. Following are

    asked by Nicole
  197. physics

    last one for now..this is nowhere in my text !! Which of these cities has the smallest incidence of cosmic rays? A) All about the same.B) New York City.C) Mexico City.D) Singapore.E) Anchorage.

    asked by Christy
  198. psyc355

    Children below the 30th percentile (in the bottom 30%) are in need of special assistance prior to attending school. What raw score marks the cut-off score for these children?

    asked by john
  199. math

    Paul's dresser has 10 loose socks that can make 5 different pairs. If Paul reaches into the drawer and randomly picks 2, socks what is the probability that they match? A1/2 B1/5 C1/10 D1/45 P.s Please explain how u worked it out :) thanks:p

    asked by sk8r Grl
  200. Math 7 - HW Question Check (Q2)

    12. Which number is an irrational number? a) square root 2 b) - 4/3 c) 1.8 (there is a line above 8) d) - square root 8 Answer- D Am I correct ?

    asked by Laruen
  201. math

    find the area of a rectangle that is 4 meters by 8 meters. A-12 SQUARE METERS B-24 SQUARE METERS C-36 SQUARE METERS D- 32 SQUARE METERS I PUT D, IS IT RIGHT?

    asked by Gabby ( 5 grade)
  202. math

    What time will it be in 35 minutes? the clock shows 5:30 will it be 6:00 6:05 5:55 or 7:05? i put 6:05 is it right?

    asked by Gabby ( 5 grade)
  203. math

    the house of flowers bought 72 flats of seedlings from their wholesaler. there were 96 seedlings per flat. what is the best estimate of the number of seedlings that the house of flowers bought? 6,000 7,000 7,500 or 12,500?

    asked by Gabby ( 5 grade)
  204. geometry Please help!

    The radii of the larger wheels on a tractor are 32 cm. If the ratio of the diameter of a large to small wheel is 19:7, find the diameters of the smaller wheels

    asked by Courtney
  205. chemistry

    how to test for iron in an audio tape?

    asked by lilly jean
  206. reading

    the story's theme is huge jobs require huge effort, its lots of fun to be a lumberjack, large people have good hearts, or logging can be dangerous i put the 3rd one (its about the story Paul Bunyan).

    asked by Gabby ( 5 grade)
  207. reading

    the scene before this one in the play is scene 3, act 1, scene 2, act 1 or act 2, scene 1 in the play from almost sisters

    asked by Gabby ( 5 grade)
  208. reading

    what best helps you understand that ma feels proud to be the head of the house hold? i put ma's line he is a widower with a son and daughter around your age but other options were ma's line but i do not want to stay in Gettysburg. sallie's line but ma we

    asked by Gabby ( 5 grade)
  209. reading

    what problem will need to be solved in the rest of the play?i put Sallie is uneasy about leaving her friends and moving to a new home other options were aunt Clara and uncle will don't want to go to Kansas ma cant convince Sallie to move to Kansas or

    asked by Gabby ( 5 grade)
  210. Math

    Abelardo wants to create several different 7-character screen names. He wants to use arrangements of the first 3 letters of his first name(abe, followed by arrangements of 4 digits in 1984, the year of his birth. How many different screen names can he

    asked by Minatsu
  211. reading

    who is most likely to have A DIFFERENT POINT OF VIEW ABOUT RESCUING MARNE ANIMALS? I PUT A PERSON WHO SELLS SEAL FUR FOR A LIVING OTHER OPTIONS ARE A PERSON WHO WORKS AT AN AQUARIUM A PERSON WHO STUDIES THE OCEAN AND ITS CREATURES A MARINE MAMMAL TRAINER

    asked by Gabby ( 5 grade)
  212. English

    I still have a few questions on the listening comprehension. Thank you. 1) "Amnesty works for the release of ‘Prisoners of Conscience’- men, women and children imprisoned anywhere for their beliefs, colour, sex, ethnic origin, language or religion. It

    asked by Matthew
  213. sewing

    What lenght of material with the jacket sleeve in Ms Ms Troy

    asked by Martina
  214. homework check

    which if the following statements is false? a. The points of a circle are coplanar b. Concentric circles intersect in exactally one point c. In are AB C Denotes that an arc of the circle has endpoints A and C and that passes through B d. If a line and a

    asked by Courtney
  215. Statistics help please!!!

    The makers of the MAGNETIZER Engine Energizer System (EES) claim that it improves gas mileage and reduces emissions in automobiles by using magnetic free energy to increase the amount of oxygen in the fuel for greater combustion efficiency. Following are

    asked by Nicole
  216. 12th Grade Life Orientation

    In 15 lines discuss 5 ways in which health problem impacts on the community

    asked by Motsatsi
  217. chemistry

    how to prepare 0.216M of 37%benzaldehyde

    asked by prema
  218. Chemistry help

    hcl+mg(oh)2->mgcl2+h20

    asked by Lee**************
  219. Math

    What are the coordinates of the image of the point P(4,25) under R-o, 180*-, where O is the origin?

    asked by Erin
  220. Chemistry

    Do the following parameters indicate how stable a substance is? 1) Viscosity of a substance 2) Optical rotation of a substance

    asked by jean
  221. Physics

    Tension is maintained in a string by attaching one end to a wall and by hanging a 2.34 kg object from the other end of the string after it passes over a pulley that is 2.00 m from the wall. The string has a mass per unit length of 3.45 mg/m. What is the

    asked by Akbar
  222. Heat Transfer

    A factory would like to produce plain carbon steel strips with pieces of polyethylene plastic film bonded on them. The bonding operation will use a laser that is already available to provide a constant heat flux of q′′0= 85, 000 W/m2for a specified

    asked by Lauren
  223. physics

    An athlete thtrew a short put of mass7.52kg through a distance of 24m when we projected a short put at angle of 30. Assuming there is no air resistance, what is the initial kinetic energy of the athlete.

    asked by John
  224. Chemistry

    If the 3 moles of Calcium Nitride was then dissolved in 2 L of liquid ammonium what would the molarity of the Calcium Nitride /ammonium solution be?

    asked by moata
  225. math

    which unit would be BEST to use to measure the time it takes a school bus to drive from its first stop to school? a)hour b)week c)month d)second

    asked by lidia
  226. social

    In two different pictures 'Christopher receiving gifts' and 'Columbus taking possession of the new country' What are the similarities? What are the differences?

    asked by kyle
  227. Statistics

    A private medical clinic wants to estimate the true mean annual income of its patients. The clinic needs to be within $100 of the true mean. The clinic estimates that the true population standard deviation is around $2,100. If the confidence level is 95%,

    asked by Jason
  228. written media

    the ____ of written media dictates whether the piece is image based or text based

    asked by kathy
  229. Geometry

    Sonia counts the faces on a cube. Then, she connects a cube and counts the faces that she can see on the two cubes . How many faces will be visible if she ends up with a row of 5 cubes? Can you give me more details with answer.thank you

    asked by Mia
  230. genetics/biology

    I am having trouble wording this question. Describe the differences in the outcomes for a dihybrid cross ifgenes are: a. completely linked b. completely unlinked c. incompletely linked.

    asked by Lucylu
  231. Calculus

    Determine if convergent or divergent: Integral 1 to infinity of e to the power of (-1/2).

    asked by Keya
  232. Math

    A buyer is paying a reduced $500 in closing costs on a home with a sale price of $95,000 in the state of Bath, Maine. If the buyer obtains an FHA loan, what would be the monthly payment if the loan is at 9 percent for 10 years?

    asked by Will
  233. physics

    In any region of space where a magnetic field is changing in time, there is which of these?. A) None of these.B) induced electric field, also changing in time.C) All of these.D) even larger magnetic field.E) induced gravitational field.

    asked by Phillip
  234. Math

    If you rotate a right triangle in a complete circle pivoted around one of the right triangles short sides, the space covered forms which solid shape? A)cylinder B)triangular prism C)pyramid D)cone

    asked by HELPP!!!
  235. History

    Q: Which governmental position was NOT held by James F. Byrnes? Choices are: A. U.S. Secretary of State B. U.S. Supreme Court justice C. governor of South Carolina D. vice president of the United States

    asked by Samantha
  236. Math

    While digging for buried treasure, chi finds 9 3/4 lb of gold coins. If the price of gold is $806 per ounce, what is the value of the coins

    asked by Kim
  237. anth

    6. How did Dettwyler deal with her own ethnocentrism while conducting fieldwork?

    asked by Anonymous
  238. Math

    While digging for buried treasure, chi finds 9 3/4 lb of gold coins. If the price of gold is $806 per ounce, what is the value of the coins

    asked by Kim
  239. English

    Sorry, but the same sentences have been sent to you twice, or even three times!! I just have a question to you. 1) Amnesty fights for the release of any prisoner who opposes violence. TRUE. I thought Amnesty does not fight only for prisoners who oppose

    asked by Matthew
  240. Int algebra

    Convert the system of equations into a matrix equation. x+4y-z=7 x+y+z=2 -2x-2y+2z=-8

    asked by den
  241. Economics

    1. The employees of Abs "R" Us, which includes 12 fitness parlors in and around the metro area, feel they can improve the performance of the company. This would be called a ______ buyout. A. Leveraged C. Negotiated B. hostile D. Management Answer: A 2.

    asked by Kourtney
  242. Earth/Space Science

    Earth's axis tilts at an angle of 23.5 degrees relative to its orbit. Analyze the climate conditions that would exist at the poles and the equator if the axis were parallel to the orbit.

    asked by Elena
  243. english

    hello, i am looking for a life-changing poem. the example i have is; a boy thinking war was great and when he got back, he lost a few limbs and then realised that it wasn't so great. thanks

    asked by holly
  244. maths

    4.6x10 26 the 26 is small (the power) this is in meters put it into kilometers give your answer in standard index form

    asked by chantelle
  245. algebra

    If the sides of a square are lengthened by 6 cm the area becomes 196 cm 2 find the length of a side of the original square?

    asked by Terry
  246. math

    which of the following units of metric measurement is best to use to measure the length of a bike path? meter,kiloliter,milligram, or kilometer i think its either meter or kilometer

    asked by Gabby ( 5 grade)
  247. math

    Yugi was keeping track of how many times each team in his baseball league won a game. the rangers had more wins than the tigers. the bullets had more wins than the pirates. THE BULLETS HAD FEWER WINS THAN THE TIGERS. WHICH TEAM HAD THE MOST WINS?

    asked by Gabby ( 5 grade)
  248. Math

    Solve for x in the following proportion x/60= 9/5

    asked by Jane
  249. reading

    the mood of this passage is tense sad humorous mysterious i put mysterious ( the story is about Paul Bunyan).

    asked by Gabby ( 5 grade)
  250. reading

    how many syllables are in the word Mississippi 3 4 5 or 6 i put 4.

    asked by Gabby ( 5 grade)
  251. Math

    If you're rolling two dice, what is the probability that the sum of two dice is a 7?

    asked by Jenna
  252. reading

    which word is the best replacement for big in the first paragraph? enormous important older spacious i put important ( it said lumberjacks are big strong men. but Paul Bunyan was the biggest and strongest of all.he was so big that he used a pine tree to

    asked by Gabby ( 5 grade)
  253. Geometry

    are AB and arc CD have same number of arc degree?

    asked by North Adams
  254. Geometry

    The perimeter of a rectangle is 26 cm and the length is 36 cm. What is the area of the rectangle?

    asked by Anonymous
  255. math

    3 sqrt-64x^3

    asked by jack
  256. math

    The graph of the range of scores for the games is shown below. The inequality for the graph can be expressed as 32 ≤ r ≤ m where r is the minimum range of the scores in any of the games and m is the maximum range. What is the value of m?

    asked by ahmed
  257. Math

    what is the median of the numbers 3,6,10,12,27,62

    asked by Bob
  258. Math

    The image of the point P(-38, 127) when reflected over the line y=x is...

    asked by Erin
  259. Introduction to Business

    1. The employees of Abs "R" Us, which includes 12 fitness parlors in and around the metro area, feel they can improve the performance of the company. This would be called a ______ buyout. A. Leveraged C. Negotiated B. hostile D. Management Answer: A 2.

    asked by Kourtney
  260. Math

    Find the image of the point P(-11, -34) after 6 successive half turns about the point C(-11, 0)

    asked by Erin
  261. Math

    Consider the points P(20, 20), X(a,b) and Y(a+20, b+20). Is Y=T-op-(X), where Ois the origin. explain

    asked by Erin
  262. business communication

    How do i revise a memo?

    asked by Diane
  263. Math

    Solve the equation below for x 20x+5x-20=21x+4 Show your work. PLEASE HELP

    asked by Cacey
  264. Chemistry

    In the lab, as acid concentration got decreased, the Ka got increased. Why ?

    asked by Mima
  265. COLLEGE CALCULUS. HELP!

    the fundamental theorem of calculus, f(x)=∫(0,x) t^3+2t^2+2dt, and find f"(x). my answer was: f'(x)=x^3+x^2+2 f"(x)=x^4/4 + 2x^3/3 + 2x it said its wrong.

    asked by lindsay
  266. Math

    simplify the expression below,using the laws of exponents. (5^4 x 5^7)/ 5^8 Show your work. PLEASE HELP ME!

    asked by Maggie
  267. APUSH

    The major difference in ethnicity, religion, and settlement patterns of California: A. was founded by Spain, was Catholic, and settled very early in the 18th century B. they were completely successful in Christianizing the indians C. the area was dominated

    asked by Anonymous
  268. L.O

    Ways in which the human or environmental problem impacts on the community.

    asked by fulufhelo
  269. MATH

    What is the sum of (x^2-3x+2) and (5x^2-3x-8)? show your work help me!!!

    asked by SAMANTHA
  270. calculus

    evaluate lim of x as it approaches infinity for sqrt of x^2 -1/2x+1

    asked by musuma
  271. Transportation and Cargo Security

    THIS IS THE FULL QUESTION I AM ASKED TO DO. Identify an asset such as an airport or a shipping company within the global transportation system. Develop and describe a security system that you feel would be most appropriate to protect the assets of the

    asked by chris
  272. English

    I still have a sentence on the listening comprehension for you to check. Thank you. 1) It fights for the release of people imprisoned for racism and political prisoners. 2) Its local groups operate by collecting information about prisoners, and then make

    asked by Matthew
  273. algebra

    find the variation constant and an equation of variation where y varies directly as x and y = 54 when x =x6

    asked by Terry
  274. biology

    what all do i need to know for GCSE biology my teacher is absolutely rubbish i tried websites but i don't find them helpful thankyou

    asked by ellen
  275. social studies

    slavery before 1844 was there any rights or rules for slaves or their familys. could they just beat them all the time?

    asked by kyle
  276. economics

    one of the things that works to make sure consumers keep getting better products at better prices is

    asked by jay
  277. math

    aaron is 13 years older than shelby. in nine years aaron will be twice as old as shelby. how old is shelby?

    asked by susan
  278. social

    should the Europeans have tried to change the beliefs of the people in their colonies during imperialist times? WHY?

    asked by kyle
  279. English

    Another doubt. Thank you very much for your help. 1) She said to me (she told me) that I could go to the cinema as long as I finished my homework. 2) Is "she said to me" a mistake? say is normally followed by direct speech.

    asked by Matthew
  280. international law

    Is the US claim to a 12 nm territorial sea and a 200 nm exclusive economic zone valid under international law?why or why not?Should the United States become a party to UNCLOS III by accession?What are the arguments both for and against becoming a party?

    asked by salma
  281. Math

    you have 12 blueberry muffins for $7.20 , 8 chocolatechip for $4.40, and 6 raisin for $4.50 What type of muffin cost the Least?

    asked by Lilly
  282. written media

    how images are manipulated in a text is called what?

    asked by kathy
  283. Calculus

    Please Help! I tried doing this on my own and got the wrong answer. Differentiate: y=4/(x-x^2)^(1/4)

    asked by Liz
  284. World History

    Anyone know the effects of the Great Plague of Marseilles other than the Act of Parliament of Aix, the Mur de la Peste, and the civilian deaths? Also would 40% be the correct number of the population killed in Marseilles?

    asked by Sammi
  285. chemistry 101

    How much alcohol must be burned to generate 279kj of heat to warm the water as described in problem 3? (60F to 180F) I've seen where they say the answer is (mass of alcohol)(heat ofcombustion)=279 and you solve for mass. However how am I to know which heat

    asked by Anonymous
  286. geometry

    Name < DAE a different way

    asked by Belle
  287. Calculus

    INT 1/sqrt e (the constant) dy from 1 to infinity. Determine if it is convergent or divergent

    asked by Keya
  288. Calculus

    Please help!! Differentiate: y=(x^2-1)^(1/2)/x^2

    asked by Liz
  289. physics

    Which of these is not an application of electromagnetic induction? A) Radio.B) None of these.C) Sound.D) Light.E) All of these are

    asked by Phillip
  290. english

    do you say women's role or women's roles in society

    asked by lisa
  291. history grade 10

    Could you please help with should the Europeans have tried to change the beliefs of the people in their colonies durind imperialist times,what do you think the reasons would be?

    asked by kyle
  292. FLORIDA STUDIES WEEKLY

    WHATS THE ANSWER TO #7 DOWN

    asked by SABRINA
  293. Economics

    1. The employees of Abs "R" Us, which includes 12 fitness parlors in and around the metro area, feel they can improve the performance of the company. This would be called a ______ buyout. A. Leveraged C. Negotiated B. hostile D. Management Answer: A 2.

    asked by Kourtney
  294. american politics

    what is tokenism and how does it help control a massmovement

    asked by step
  295. English

    I left out a last thing about the comprehension. Thank you very much Writeacher. 1) Paradoxically, Amnesty is an organization that will only be satisfied when it has become redundant. Meaning: Amnesty will go on working until its work becomes unecessary.

    asked by Matthew
  296. Math

    How to do division with decimal points like 8.1/0.9

    asked by Dwayne
  297. marketing

    who are the organizational buyers of whirlpool products? I have Sears, Lowes, Best buys, and home depot. Is that what the questions is referring to and are there more?

    asked by Patiance
  298. Physics

    If the two protons and the are all at rest after the collision, find the initial speed of the protons.

    asked by Caleb
  299. Geometry

    Point A is 5 feet from the center of the circle and 11 feet from point B. Line AB is tangent to circle O at A. Find OB to the nearest tenth.

    asked by Joe
  300. Introduction to Business

    1. The employees of Abs "R" Us, which includes 12 fitness parlors in and around the metro area, feel they can improve the performance of the company. This would be called a ______ buyout. A. Leveraged C. Negotiated B. hostile D. Management Answer: A 2.

    asked by 400
  301. Bio Anatomy

    I am doing a paper on the occipital lobe and I am supose to talk about the pathology of it. i know that is like the study of disease of the lobe. So should i talk about different diseases that occur in the lobe? like maybe choose three different ones or

    asked by Nicole
  302. Geometry

    Given that circle Q has a radius of 42, and radii line QR and line QS form an angle of 180, find the exact length of arc RS.

    asked by Joe
  303. English

    Writeacher, can you help me check these sentences? Thank you very much for your invaluable help! 5)After making sure a person is a Prisoner of Conscience, the organization starts sending letters to governments and benefits (food, medicine) to the prisoner.

    asked by Matthew
  304. Math 7 - HW Question Check

    7. Which number is an irrational number? a) Square Root 3 (i can't make the symbol) b) - 13.5 c) 7/11 d) 1 over square root 9 (can't make the symbol) My Answer - D Am I correct?

    asked by Laruen
  305. math

    Mick delivered 26 19 23 and 20 newspapers on the blocks of his route. what was the average number of newspapers Mick delivered? is the answer 22 cause that's what i got.

    asked by Gabby ( 5 grade)
  306. chem 101

    In an electron microscope the electrons generate the image. For one of the scanning electron microscopes in our Central Analytical Facility, the electrons are accelerated to have a kinetic energy of 200,000 eV. Electrons with this kinetic energy have a

    asked by Anonymous