1. physics

    Challenger Deep in the Marianas Trench of the Pacific Ocean is the deepest known spot in the Earth's oceans, at 10.922 km below sea level. Taking density of seawater at atmospheric pressure (p0 = 101.3 kPa) to be 1024 kg/m3 and its bulk modulus to be B(p)

    asked by Anonymous on April 16, 2011
  2. chemistry

    A student determined the chloride content of a commercial salt by using the Mohr method. A 0.5324 -g sample of the salt was dissolved in distilled water and diluted to a final volume of 250. mL. A 25.-mL aliquot of the analyte solution was then titrated

    asked by tara on April 4, 2011
  3. Physics

    1. Calculate the kinetic energy of a 5.2kg object moving at 2.4 m/s 7. Calculate the potential energy of a 5.2kg object positioned 5.8m above the ground 21. Calculate the speed of a 5.2 kg object that possesses 26.1 J of kinetic energy.

    asked by Mary on February 13, 2017
  4. pr calc 11

    The path of the stream of water coming out of a fire hose can be approximated using function h(x0=-0.09x^2+x+1.2=0, where h is the height of the water stream and x is the horizontal distance from the fire-fighter holding the nozzle in metres. At what

    asked by AMANSANDHUWILLDIE!!! on April 1, 2016
  5. physics

    An open vertical tube is filled with water and a tuning fork vibrates over the top near the open end. As the water level is lowered in the tube, the first resonance is heard when the water level is at 31 cm from the top of the tube. What is the frequency

    asked by Leslie on September 6, 2011
  6. chemistry

    Given that the specific heat capacities of ice and steam are 2.06 J/g degrees celsius and 2.03 J/g degrees celsius, respectively, and considering the information about water given, calculate the total quantity of heat evolved when 10.0g of steam at

    asked by Anonymous on April 16, 2012
  7. Physics

    You are working as a summer intern for the Illinois Department of Natural Resources (DNR) and are assigned to some initial work on water resources project. The department will be overseeing the construction of a dam to create a large fresh water lake that

    asked by jesse on May 1, 2010
  8. projects

    And you ought to do some research on mordants. In this case try the experiment on each dye with and without a tablespoon of vinegar in the solution. maybe if you test water it would probably be the same, good question AND, you may wish to try more than one

    asked by bobpursley on October 30, 2006
  9. Basic Physics

    Determine the minimum gauge pressure needed in the water pipe leading into a building if water is to come out of a faucet on the twelfth floor, 41m above that pipe.

    asked by Ashley on August 25, 2014
  10. Physics

    Water is pumped at 120m^3/min from a lake into a tank 35 m above the lake. (a) What power, in kW, must be delivered by the pump? (b) What is the increase in potential energy of the water each minute?

    asked by Sotha Bun on March 30, 2017
  11. physics

    A microwave runs off a 110. V circuit and draws 7.00 A of current. How much water would be required to run the microwave for 10.0 minutes if it is powered by a 10.0­m high water wheel?

    asked by john jhon on April 25, 2016
  12. AP Physics

    A fire engine must lift 30 kg of water a vertical distance of 20 m each second. What is the amount of power needed for the water pump for this fire hose? Is the answer 5880W? If yes, why so?

    asked by Collins on December 4, 2015
  13. chemistry

    How many joules of heat are required to completely covert 85.0 grams of water at 40.0° C to steam at 100°C? For water: c = 4.179 J/g °C Hfusion = 6.01 kJ/mol Hvap = 40.7 kJ/mol

    asked by har on April 21, 2016
  14. Physics

    Determine the minimum gauge pressure needed in the water pipe leading into a building if water is to come out of a faucet on the twelfth floor, 40m above that pipe. Pa?

    asked by Melissa on December 11, 2012
  15. Physics

    a diver running 1.6m/s dives out horizontally from the edge of a vertical cliff and reaches the water below 3.0s later. how high was the cliff and how far from its base did the driver hit the water?

    asked by someone on August 1, 2009
  16. chemistry

    A 375 g sample of well water is found to contain 17.0 mg of lead. How much lead (in parts per million) is in the well water? Round to the nearest tenth. Don't forget the unit.

    asked by greg on March 4, 2011
  17. Physics

    A container contains 15 liters af water at 96 celsius. A 1 kg of ice cube at -20 celsius is dropped into the water. No heat is lost to the surroundings. What will the final mixing temperature be?

    asked by Thermodynamics on February 17, 2014
  18. Chemistry

    How much ice in grams would have to melt to lower the temperature of 58.2 g of water from 55.0 degrees C to 0 degrees C? Assume the density of water is 1.0 g/mL Any advice on how to tackle this problem would be appreciated. Thanks

    asked by Alex on April 4, 2012
  19. ECONOMICS

    Among perfect competition, monopolistic competition, oligopoly, and monopoly, how would you classify the markets for each of the following drinks ? Tap water Bottled water Cola Beer

    asked by RAJA on April 10, 2013
  20. Physics

    A cubic solid of plastic floats in water with 2/3 of its volume below the water line. What is the density? If the total volume of the block in the above question is 6.4 * 10^-5 m^3 what is the buoyant force on it?

    asked by Mike on April 3, 2008
  21. calculus

    A conical tank has a diameter of 9ft and is 12 ft deep. If the tank is filled with water of density 62.4 ft/cubic ft, how much work is required to pump the water over the top?

    asked by Anonymous on February 15, 2012
  22. science

    how do liquid water, ice, and water vapor differ from one another? A.) They are different states of matter B.) They are different compounds C.) They are made of different kinds of molecules. D.) They are mad of different kinds of atoms.

    asked by jj on May 2, 2016
  23. Math

    A rectangular tub with dimensions 2m x 1m x 0.5m is filled with water using a pail of radius 0.1 m and height 0.35 m. How many pails of water will be required? Give your answer to the nearest whole pail.

    asked by Anonymous on March 17, 2011
  24. PHYS HELP

    Water flows over a section of Niagara Falls at a rate of 1.43 × 10^6 kg/s and falls 62.5 m. The acceleration of gravity is 9.8 m/s^2. How much power is generated by the falling water? Answer in units of MW.

    asked by johana on March 9, 2011
  25. maths

    A Cuboid dimension 14cm*8cm*7cm is completely emerged in cuboid trough with side 28cm containing water 20 cm.what will be the height of water after emerging?

    asked by tuhituhi on November 19, 2012
  26. chemistry

    what is the final temperature of amixture containning 25 grams of ice at -20 degree celciusadded to water at room temperature 22oC mass of water is 50g

    asked by treasa on May 9, 2014
  27. physics

    Mrs. Johnson's kid is trying to drink with a straw that runs through an airtight cork in the top of a bottle of water. Please explain to her kid why he won't get any water.

    asked by Lenny on February 6, 2017
  28. Physics

    A rain cloud contains 2.72 × 10^7 kg of water vapor. The acceleration of gravity is 9.81 m/s^2. How long would it take for a 3.79 kW pump to raise the same amount of water to the cloud’s altitude of 1.85 km? Answer in units of s

    asked by miyuki on December 13, 2012
  29. Chemistry

    What is the value of q when 8.21g of water vaporizes at 373 K? The enthalpy of condensation of water at 373 K is -40.7 kJ/mol. I tried using the equation q= m x Cs x Delta T, but I never got the right answer which is 18.5 kJ apparently, so I need to find

    asked by Sarah on February 4, 2013
  30. Physics

    Water flows at 2.4 m/s through a garden hose of diameter 1.59 cm and emerges from a nozzle of radius 0.64 cm. If the nozzle is directed vertically upward, to what height would the water rise?

    asked by Chai on November 18, 2015
  31. Physics

    How high (in meters) would the water rise in the pipes of a building if the water pressure gauge shows the pressure to be 252 kPa at ground level?

    asked by Anonymous on May 22, 2016
  32. calculus

    A conical tank has height 3 m and radius 2 m at the top. Water flows in at a rate of 1.4 \text{m}^3\text{/min}. How fast is the water level rising when it is 2.6 m?

    asked by MEMO on March 7, 2014
  33. Chemistry

    Hydrogen gas has been suggested as a clean fuel because it produces only water vapor when it burns. If the reaction has a 95.4% yield, What mass of hydrogen forms 94 Kg of water?

    asked by Help on February 3, 2011
  34. chemistry

    Hydrogen gas has been suggested as a clean fuel because it produces only water vapor when it burns. If the reaction has a 95.4% yield, What mass of hydrogen forms 94 Kg of water?

    asked by Cassie on February 3, 2011
  35. Chemistry

    How much energy, in calories, does it take to convert 20.0 grams of solid water, at 0.0 degrees C, into liquid water, at 0.0 degrees C? (The enthalpy of fusion for H2O is 1.44 kcal/mol)

    asked by Jamie on January 25, 2017
  36. CHEMISTRY

    How many liters of softened water, containing a sodium concentration of 0.050% sodium by mass, have to be consumed to exceed the FDA recommendation? (Assume a density of 1.0 g/mL for water.)

    asked by TITO on June 9, 2014
  37. Physics

    A 400-g block of copper at a temperature of 85°C is dropped into 300 g of water at 33°C. The water is contained in a 250-g glass container. What is the final temperature of the mixture?

    asked by Seth on November 30, 2011
  38. Chemisty

    How much heat energy is released to surrounding when 15.0 g of water at 35°C is converted into ice with a temperature of -45°C? vap = 2260 J/g; Hfus = 334 J/g; Cp(ice) = 2.06 J/g • °C; Cp(water) = 4.18 J/g • °C; Cp(steam) = 1.99 J/g •

    asked by Stephen on April 8, 2010
  39. physics

    A ball is thrown with a speed of 20 m/sec at an angle of 60 degrees below the horizontal from a bridge whisch is 30 m above the water. Where does the ball hit the water? How long is it in the air?

    asked by Elise on December 19, 2010
  40. Chemistry

    Water is exposed to infrared radiation of wavelength 3.0×10^−4 cm. Assume that all the radiation is absorbed and converted to heat. How many photons will be required to raise the temperature of 1.7 g of water by 2.2 K?

    asked by Kyle on November 9, 2009
  41. physics

    Mrs. Johnson's kid is trying to drink with a straw that runs through an airtight cork in the top of a bottle of water. Please explain to her kid why he won't get any water.

    asked by Anonymous on February 7, 2017
  42. Geometry

    By the water cooler in an office, there are conical paper cups. The radius is about 1.2 inches and the height is about 3.5 inches. How much water does the cup hold if it is filled to the top?

    asked by Lisa on December 13, 2014
  43. physics

    a wooden board 10cm. thick floats in water (1000kg/m3) with its upper surface parallel to and 3cm above the water surface.what is the density of the wood?

    asked by mr.black on April 27, 2017
  44. physics

    A boat moves through the water with two forces acting on it. One is a 2.32×10^3 N forward push by the motor, and the other is a1.79×10^3 N resistive force due to the water.What is the acceleration of the 1279.5 kg boat?

    asked by john on December 18, 2010
  45. chemistry

    Suppose 95.0 mL of HCl gas at 25 ºC and 707 torr is bubbled into 298 mL of pure water. What will be the pH of the resulting solution, assuming all the HCl dissolves in the water?

    asked by Linda on April 24, 2014
  46. chemistry

    How many kilojoules of heat is required to completely covert 60.0 grams of water at 32.0° C to steam at 100°C? For water: s = 4.179 J/g °C Hfusion = 6.01 kJ/mol Hvap = 40.7 kJ/mol

    asked by Kate on November 29, 2010
  47. Physics

    A certain rain cloud at an altitude of 1.90 km contains 3.20 107 kg of water vapor. How long would it take for a 2.18-kW pump to raise the amount of water from Earth's surface to the cloud's position?

    asked by Dhruba on August 14, 2014
  48. physics

    A rain cloud contains 3.56 x 107 kg of water vapor. How long would it take (in seconds) for a 4.5 kW pump to raise the same amount of water to the cloud which has an altitude of 1741.4 meters?

    asked by raeg on May 6, 2015
  49. socials

    i have to write report on one disease caused by contamination of water. ms. sue can you please give me easy understanding site that tell me causes of disease, effects and how safer water may contain it.

    asked by Mohammad on January 13, 2012
  50. Physics

    Water is lifted out of a well 30.0m deep by a motor rated at 1.00hp. Assuming 90% efficiency, how many kilograms of water can be lifted in 1 min? Answer is 137kg but can not figure it out.

    asked by Kayla on October 12, 2017
  51. physics

    A fire engine must lift 30 kg of water a vertical distance of 20 m each second. What is the amount of power needed for the water pump for this fire hose? P=W/t=Fd/t=mgd/t (30)(9.8)(20)/1= 5880 W is that right?

    asked by bill on January 21, 2015
  52. PHYSICS

    How would I o about solving this: When a load of 1000000 Newtons is placed on a battleship, the ship sinks only 2.5 cm in the water. Estimate the cross-sectional area of te ship at water level.

    asked by MAL on February 21, 2010
  53. Physics

    55) A 200-g block of copper at a temperature of 90 C is dropped into 400g of water at 27 C. The water is contained in a 300-g glass container. What is the final temperature of the mixture?

    asked by Y0gi on November 30, 2010
  54. BIOLOGY

    Table Sugar can react with water to form 2 other compounds, glucose & fructose. But, when you add sugar to a glass of water the reaction is very slow - WHY? What would it need to speed it up?

    asked by JOHN on December 11, 2008
  55. Math

    An irrigation pump can pump 250 liters of water per minute. How many hours should the system work to water a rectangular field 75 m by 135 m to a depth of 3 cm?

    asked by Jason on November 17, 2013
  56. Math

    An irrigation pump can pump 250 liters of water per minute. How many hours should the system work to water a rectangular field 75 m by 135 m to a depth of 3 cm?

    asked by Brandon on November 17, 2013
  57. physics

    Consider Joule's experiment described in the insight below. Assume the mass m = 2.3 kg and the fluid is water with a volume of 1.75 L. What is the increase in the temperature of the water when the mass moves vertically a distance z = 1.55 m?

    asked by chase on January 25, 2016
  58. chemistry

    How many kilojoules of heat is required to completely covert 60.0 grams of water at 32.0° C to steam at 100°C? For water: s = 4.179 J/g °C Hfusion = 6.01 kJ/mol Hvap = 40.7 kJ/mol

    asked by Kate on November 29, 2010
  59. biology

    A slice of pizza has 500 kcal. If we could burn the pizza and use all the heat to warm a 50–L container of cold water, what would be the approximate increase in the temperature of the water?

    asked by Jack on January 30, 2009
  60. Chemistry

    Which of the following is NOT a characteristic of a strong acid and a strong base? A. Has a [H+] higher than water B. Is corrosive to most metals C. Has a pH at the extreme end of the scale D. Completely dissociates in water

    asked by Cherry on August 18, 2016
  61. Fluids

    A pipe of constant diameter d = 10.5 cm carries water up a hill h = 38.1 m high. How much pressure is required at the bottom of the hill if the water is to reach the top? Any help would be great

    asked by Sasha on March 9, 2012
  62. physical science

    how much heat is absorbed by pouring 10 grams of 100 degree C liquid water on a students hand. The water is cooled to body temperature 37 degree C

    asked by Anon on October 23, 2012
  63. chemistry

    A 375 g sample of well water is found to contain 17.0 mg of lead. How much lead (in parts per million) is in the well water? Round to the nearest tenth. Don't forget the unit.

    asked by sara on June 12, 2012
  64. Chemistry

    [10:58am]: Wn 4.5g of liquid water was formed by burning hydrogen gas in oxygen,-72kj of heat was given off.calc d standad heat formation of water

    asked by Hayur on January 27, 2016
  65. chemistry

    in making a solution of an unknown solid substance to test it for the presence of ions, would it matter if you used pure water or tap water to make the solution

    asked by lester on December 17, 2009
  66. Physics

    From a height of 30.5 , a 1.45 bird dives (from rest) into a small fish tank containing 49.0 of water. What is the maximum rise in temperature of the water if the bird gives it all of its mechanical energy?

    asked by Jack on May 17, 2013
  67. Physics

    #1.) A wind turbine has a Cp of 0.42 and extracts 50 kW of power when the wind velocity is 25 m/sec. How long are the blades? (ρ = 1.2 kg/m3) #2.) An electric hot water heater is used to heat 30 gallons of water from 20 °C to 45 °C. a. What heat energy

    asked by Ricky on December 5, 2010
  68. physics

    A 1.00 kg hollow ball with a radius of 2.2^10^-1 m, filled with air, is released from rest at the bottom of a 1.50 m deep pool of water. How high above the water does the ball shoot upward if the upward force exerted by the fluid on the ball 40 N? Neglect

    asked by Sandhya on October 28, 2008
  69. history

    What books are collected in the Hebrew? The Torah, the Prophets, and Writings that were added later. Is this accurate?

    asked by Reed on October 7, 2010
  70. Math

    What is the final price of a textbook that costs $107.20 with an added tax rate of 6%?

    asked by Leah on February 5, 2016
  71. Math

    Find all pairs of integers such that when they are added they equal 100, and when they are multiplied they are at least 2000.

    asked by Erika on February 10, 2015
  72. finace

    How much total interest would Justin pay over the seven years, and what would be a justification for this added cost

    asked by hakeem on August 17, 2015
  73. math help me please!!!!!!!!!!!!!!!!

    luke added 429+699+314 and got 950 is this sum reasonable?

    asked by esha on October 18, 2011
  74. math

    If 6 is added to the numerator and denominator of the fraction 7/9,what will be the value increase or decrease ?by how much ?i need solution answer

    asked by sheirra on September 17, 2016
  75. home economics

    How many eggs should be added in to a standard chocolate cake recipe? :) k cool thankss

    asked by Emileebabee on April 15, 2011
  76. Chem

    What is the pH of the solution formed when 0.040mol NaOH(s) is added to 2.00L of 0.020M HCl?

    asked by IH on November 29, 2010
  77. Chemistry: Salt of weak acids and bases

    If 25 mL of 0.20M NaOH is added to 20 mL of 0.25M boric acid, what is the pH of the resultant solution?

    asked by Wen on April 10, 2016
  78. Graph Theory

    Let S be a sequence of exactly one positive integers, n. what is the least number of 1s needed to be added to make it graphical?

    asked by Bruce on October 29, 2016
  79. chemistry

    How many liters of 0.50M NaOH must be added to 125 mL of 0.75M HCL to neutralize it

    asked by KJ on May 20, 2013
  80. Chem

    What is the pH of the solution formed when 0.040mol NaOH(s) is added to 2.00L of 0.020M HCl?

    asked by IH on November 29, 2010
  81. Chemistry

    What would happen to the color of a dilute solution containing FeCL4 if you added concentrated HCl?

    asked by Christina on April 27, 2010
  82. Math

    isn't 3 added to 5, 5 + 3? i know it doesn't matter, but when it sais to multiply the first number, i must know wether it's 3 or 5.

    asked by Ricky on January 23, 2008
  83. Chem

    What is the percent by mass of a solution if 45 grams of acetic acid is added to 90 g of H2O? Thanks.

    asked by Jenny on March 21, 2011
  84. Math

    What is the final price of a $24 sweatshirt if there is a 20% discount applied and then a 7% sales tax added?

    asked by Julie on February 6, 2016
  85. science

    if .38 kJ of heat is added to 19.6 grams of ice at -12.0 degrees celsius, what will be the final temperature?

    asked by Sydney on January 10, 2015
  86. Chemistry

    3.5 liters of H2O are added to 500 mL of a 2.0 M HNO3 solution. What is the resulting molarity?

    asked by Riley on March 26, 2010
  87. math test review

    7. Given that w=7r+6r+5r+4r+3r. Which of the terms listed below may be added to w to the resulting sum will be divisible by 7 for every positive integer r? A.7r B.6r C.5r D.4r E.3r

    asked by vincent on August 6, 2014
  88. bio chem

    What is the ph when 100 mL of 0.1 M NaOH is added to 150 mL of 0.2 M Hac if pka for acetic acid =4.76?

    asked by brit on July 12, 2011
  89. physical science

    what is the freezing point depression when 153g of bromine is added to 1000g of benzene?

    asked by melanie on August 19, 2011
  90. Science - MIT

    Which of the following is a possible set of n, l, mi, and ms quantum numbers for the last electron added to form a gallium atom (Z=31)? 4,1,1,1/2

    asked by Samboni on December 22, 2014
  91. chemistry

    To 50 mL of this buffer, 10.0 mL 0.76 M soium hydroxide was added, what is the pH of the resulting solution after equilibrium has been re-established

    asked by cel on June 15, 2014
  92. Science

    Why does a toy car go faster and further when it is added weight onto it and is put on a ramp at 45 degrees?

    asked by Megan on September 25, 2011
  93. Ms sue Math

    7 8/10 + 7 9/10 First I did 7+7 14 Then 8+9 = 17 Then 10 10 10 So I did ten divide by 17 equals 1 The one gets added to 14 and the remaining seven stays and it turns to 15 7/10? Am I explain this right

    asked by Anonymous on March 12, 2018
  94. english

    simple subject of this sentence Alex Tanner added a spoonful of vanilla

    asked by sammy on October 14, 2009
  95. chemistry-organic

    what happens when sodium benzoate is added to dichloromethane? what is the organic and aqueous layer of this product?

    asked by Nancy on April 1, 2009
  96. 8 th grade math

    what is length of hypotenuse 16m is bottom measure and 12 m is side i added them together and got 28m is this right

    asked by Anonymous on May 14, 2012
  97. home insurance

    The U.S congress added disability insurance to the social security act in 19___. A.35 B.54 C.65 D.72 i got A

    asked by Ciara on October 18, 2011
  98. physical science

    what is the freezing point depression when 153g of bromide is added to 1000g of benzene?

    asked by melanie on August 19, 2011
  99. math

    Find all pairs of numbers such that when they are added they equal 100, and when they are multiplied they are at least 2000.

    asked by Omar on February 13, 2013
  100. Math

    The first term of a GP is 64 and the common ratio is 1/2.How many terms must be added to obtain a total of 127 1/2?

    asked by Galena on October 16, 2016