1. physics

    Suppose 0.0150 kg of steam (at 100.00°C) is added to 0.150 kg of water (initially at 19.3°C.). The water is inside a copper cup of mass 54.1 g. The cup is inside a perfectly insulated calorimetry container that prevents heat flow with the outside

    asked by please help me on April 5, 2011
  2. AP Chemistry

    A typical bathtub can hold 94 gallons of water. Calculate the mass of natural gas that would need to be burned to heat the water for a tub of this size from 59 ◦F to 101 ◦F. Assume that the natural gas is pure methane (CH4) and that the products of

    asked by David on October 27, 2016
  3. Biology

    Are these correct? Cohesion=Water molecules stick to the side of a straw because of this attractive force. Adhesion=Liquid mercury forms drops because of this attractive force Polarity=This property of water enables salt to dissolve in water Base=This is a

    asked by mysterychicken on January 27, 2010
  4. physics

    Suppose 0.0150 kg of steam (at 100.00°C) is added to 0.150 kg of water (initially at 19.3°C.). The water is inside a copper cup of mass 54.1 g. The cup is inside a perfectly insulated calorimetry container that prevents heat flow with the outside

    asked by John on April 5, 2011
  5. physic

    Suppose 0.0150 kg of steam (at 100.00°C) is added to 0.150 kg of water (initially at 19.3°C.). The water is inside a copper cup of mass 54.1 g. The cup is inside a perfectly insulated calorimetry container that prevents heat flow with the outside

    asked by help me please on April 8, 2011
  6. physics

    Suppose 0.0290 kg of steam (at 100.00°C) is added to 0.290 kg of water (initially at 19.7°C.). The water is inside an aluminum cup of mass 44.7 g. The cup is inside a perfectly insulated calorimetry container that prevents heat flow with the outside

    asked by jason on April 9, 2011
  7. Chemistry

    1. How would using 0.42 g CH3CO2Na * 3H2O instead of the amount called for in the procedure change the theoretical yield of Fe(C5H7O2)3 = 3.53g. 2. When a student sees crystals form after she added a few drops of water to the filtrate. Need chemical

    asked by Anonymous on October 29, 2012
  8. Geology

    Imagine that the gasoline that you are burning in your car this week was refined from petroleum that was produced from jurassic-age rocks in Arkansas. What is the primary source of energy that has been reclaimed to power your car? Explain. Hint: What is

    asked by JAYJAY on July 4, 2010
  9. Algebra

    Water coming out from a fountain is modeled by the function f(x) = −x2 + 8x + 2 where f(x) represents the height, in feet, of the water from the fountain at different times x, in seconds. What does the average rate of change of f(x) from x = 1 to x = 4

    asked by memelord on April 14, 2017
  10. Algebra HELP!!

    Water coming out from a fountain is modeled by the function f(x) = -x^2 + 8x + 2 where f(x) represents the height, in feet, of the water from the fountain at different times x, in seconds. What does the average rate of change of f(x) from x = 1 to x = 4

    asked by Dina M on January 18, 2015
  11. Science

    I have been waiting for 30 minutes and noone has answered this question. Please help me! Describe the method you would use to separate eachg mixture. Methods: Picking apart, filtering, using density, using magnetism, dissolving, evaporating. a)sand and

    asked by Saquta on December 17, 2010
  12. Physics

    A cube of solid aluminum has a volume of 1.00 m^3 at 20 degree C. What temperature change is required to produce a 100-cm^3 increase in the volume of the cube? I know you are supposed to use: DeltaV=Beta*Vo*DeltaT. But I don't know what Beta is and the

    asked by HELP on December 13, 2010
  13. chem1B

    How many milliliters of 0.950M sodium hydroxide must be added to 35.0mL of 0.850M acetic acid to reach the equivalence point? should the volume of the hydroxide be the same as the volume of the acid because there is a 1:1 ratio? If so, how do I set up an

    asked by brenda on March 8, 2015
  14. science

    how do i ansewr this question? An aerosol spray can with a volume of 400. mL contains 2.25 g of propane gas (C3H8) as a propellant (a) If the can is at 31°C, what is the pressure in the can? (b) What volume would the propane occupy at STP? (c) The can's

    asked by Samantha on December 15, 2012
  15. science

    A scientist makes the measurements shown in the data table below. She needs to know the total volume of her other samples. which of the following shows the total volume reported with the correct number of digits and units. Samole A 12.14 ML Sample B 3.400

    asked by China one on September 16, 2015
  16. cheminstry

    A sample of neon gas has an initial volume of 2.5L at 300 K. What is the new temperature of the gas(both in K and Celsius degrees) if the pressure remains constant, when the volume is changed to each of the following values: a. 5.00L b. 7.50L c. 1.50L d.

    asked by marielis on April 8, 2015
  17. math

    a rectangular prism has a width of 92ft. and a volume of 240ft^3. Find the volume of a similar prism with a width of 23ft. Round to the nearest tenth if necessary. a)3.8ft^3 b)60ft.^3 c)15ft.^3 d)10.4ft.^3 I am totally cinfused by this. Can somebody please

    asked by Shannon on August 31, 2008
  18. chemistry

    Hi DrBob222, this is regarding my Determining Ka of Acetic acid lab I talked about on April 5, 2008. Refer to the volume of NaOH on your graph from question 2. Calculate half this volume and on your graph, find the pH when the solution was half

    asked by Sarah on April 7, 2008
  19. chemistry

    The air within a piston equipped with a cylinder absorbs 570J of heat and expands from an initial volume of 0.12L to a final volume of 0.88L against an external pressure of 1.0 atm. What is the change in internal energy of the air within the piston?

    asked by savannah on December 19, 2012
  20. chemistry

    The air within a piston equipped with a cylinder absorbs 570J of heat and expands from an initial volume of 0.12L to a final volume of 0.88L against an external pressure of 1.0 atm. What is the change in internal energy of the air within the piston?

    asked by savannah on December 20, 2012
  21. physics help

    An automobile tire has a radius of 0.280 m, and its center moves forward with a linear speed of v = 18.0 m/s. (a) Determine the angular speed of the wheel. (Assume that there is no slipping of the surfaces in contact during the rolling motion.) rad/s (b)

    asked by john on November 27, 2010
  22. Chem - Molarity

    Hi, I have this question related to Molarity and hoping you can help? The question says: 50.0 gram sample of NaCl is added to water to create a 0.50 L solution. What volume of this solution is needed to create a 1.30 L solution that is 0.100 M NaCl? It

    asked by Cassandra on April 22, 2015
  23. Chemistry

    you are a public health officer in the water treatment facility for a city of 50,000 people . A concentration of 1.0 ppm of fluoride in the drinking water is sufficient for the purpose of helping to prevent tooth decay. The compund normally chosen for

    asked by Anonymous on October 1, 2015
  24. CHEMISTRY HELP!!

    We know that chloroform does not dissolve or mix with water. But why does chloroform, under some conditions, dissolve in a mixture of acidic acid and water? Do you mean acetic acid? whoops sorry, i think it is suppose to be acetic acid. I would imagine

    asked by Amy on March 27, 2007
  25. MATH

    Find the volumes of the solids generated by revolving the region in the first quadrant bounded by the following about the given axes. x = y - y3, x = 1, y = 1 (b) Revolved about the y-axis ? Hi Shawn, 97/105 * pi ? :) We need to cut away the volume of the

    asked by Shawn on February 9, 2007
  26. math

    . Find the volume of the sphere with a radius of 9. Use ð = 3.14 and round your answer to the nearest tenth. 4. Find the volume of an ellipsoid with a semi-major axis of length 10 and the first semi-minor axis has length of 6 while the second semi-minor

    asked by BreAnna on April 18, 2011
  27. physics

    Hi, could anyone help me please, Thank. Gas in a container is at a pressure of 1.3 atm and a volume of 1.0 m3. (a) What is the work done on the gas if it expands at constant pressure to twice its initial volume? (b) What is the work done on the gas if it

    asked by Chan on December 7, 2009
  28. physics

    Hi!could anyone help me please, Thank. Gas in a container is at a pressure of 1.3 atm and a volume of 1.0 m3. (a) What is the work done on the gas if it expands at constant pressure to twice its initial volume? (b) What is the work done on the gas if it is

    asked by Chan on December 7, 2009
  29. Calculus

    Given a right circular cone, you put an upside-down cone inside it so that its vertex is at the center of the base of the larger cone, and its base is parallel to the base of the larger cone. If you choose the upside-down cone to have the largest possible

    asked by Mishaka on December 17, 2011
  30. physics

    A 3.6 kg rock is initially at rest at the top of a cliff. Assume that the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water. How high is the cliff if the temperature of 1.1 kg of water is

    asked by Anonymous on February 13, 2015
  31. physics

    If 7.00hp are required to drive a 1500-kg automobile at 66.0 km/h on a level road. What power is necessary to drive the car at 66.0 km/h down a 1.00 % grade? It requires 42.9 hp to drive the car at 66.0 km/h up a 10.0 % grade (a hill rising 10.0 m

    asked by Allison on May 5, 2011
  32. word riddle help please

    to find the clue you must search the text Cause in the Late evening when dark is dim and Peaches are gray walk 1 north and then head east, till you find the pretty thing and tell me what it is! Without the text that needs to be searched, we cannot help

    asked by sharon on December 11, 2006
  33. physics

    Proper design of automobile braking systems must account for heat buildup under heaving braking. Calculate the thermal energy dissipated from brakes in a 1460-kg car that descends a 15.5° hill. The car begins braking when its speed is 92 km/h and slows

    asked by Johnathon on February 14, 2011
  34. Physics

    If 7.00hp are required to drive a 1500-kg automobile at 66.0 km/h on a level road. What power is necessary to drive the car at 66.0 km/h down a 1.00 % grade? It requires 42.9 hp to drive the car at 66.0 km/h up a 10.0 % grade (a hill rising 10.0 m

    asked by Allison on May 4, 2011
  35. Physics

    Proper design of automobile braking systems must account for heat buildup under heaving braking. Calculate the thermal energy dissipated from brakes in a 1360-kg car that descends a 13.5° hill. The car begins braking when its speed is 88 km/h and slows

    asked by Thomas on February 12, 2013
  36. calc

    the volume of a cylindrical tin can with a top and a bottom is to be 16*pi cubic inces. if a minimum amont of tin is to be used to construct the can, what must be the height, in inches, of the can? volume of cyliner is pi*r^2*h do i like take derivitive of

    asked by david on December 8, 2006
  37. Physics

    A heat engine absorbs 126 kcal of heat and exhausts 77 kcal of heat in each cycle. Calculate the efficiency (as a percentage)

    asked by Riley on February 3, 2014
  38. physics30sh

    a 1000 kg car engine exerts a force of 3000 N while the car accelerates from 20 m/s to 30 m/s is 5.0 seconds. How much force of resistance does the car experience?

    asked by Michael on October 16, 2010
  39. crossword help

    -a type of search that uses word with specific meanings -A combination of more than one search engine -Use this type of searching if you find nothing with a simple search

    asked by kim on May 14, 2011
  40. Physics

    A heat engine absorbs 126 kcal of heat and exhausts 77 kcal of heat in each cycle. Calculate the efficiency (as a percentage)

    asked by Chelsea on February 1, 2014
  41. Physics

    A heat engine absorbs 126 kcal of heat and exhausts 77 kcal of heat in each cycle. Calculate the efficiency (as a percentage)

    asked by Chelsea on January 31, 2014
  42. social studies? i think idk

    what new ideas came from the automobile? plz help plz plz plz ASAP

    asked by Geena on December 5, 2015
  43. physics

    A truck in driving up the interstate with a constant velocity. Is work being done by a net external force acting on the truck? Justify answer. Why doesn't the work done by the engine pushing it forward make its kenetic energy increase?

    asked by Anonymous on July 1, 2012
  44. Physics

    A helicopter winches up an injured person from a boat. The person plus equipment has a mass of 104 kg. If the height of the lift is 84 m and it is carried out at a uniform rate over 70 s, what is the power expended by the helicopter's winch motor? Assume

    asked by Anonymous on March 26, 2012
  45. Calculus 3

    Vectors The thrust of an airplane's engine produces a speed of 400 mph in still air. The wind velocity is given by . In what direction should the plane travel to fly due south? Give your answer as an angle from due south.

    asked by Anonymous on May 11, 2011
  46. Physics

    A helicopter winches up an injured person from a boat. The person plus equipment has a mass of 104 kg. If the height of the lift is 84 m and it is carried out at a uniform rate over 70 s, what is the power expended by the helicopter's winch motor? Assume

    asked by Anonymous on March 26, 2012
  47. Physics

    A car accelerates a form an initial speed to higher final sped while the engine puts out constant power. During this time period, magnitude of the car's acceleration was .. a increasing b decresing c constant d unpredictable please explain why also.

    asked by Anonymous on February 11, 2017
  48. Chemistry 10

    The accelerator pedal in the car is pressed, resulting in a faster consumption of fuel in the engine. Now according to previous answers to this question the answers concentration but I do not understand how. I though concentration is the amount of a

    asked by Natasha on October 23, 2011
  49. algebra

    The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,

    asked by Jesse on October 25, 2014
  50. Langauge Arts

    What is the best paraphrase of the final stanza? A. The water slows until it reaches its destiny, a place not too different from mine, where the water stretches to meet the sky. Other people use it like a mirror. They fish and think here. B. The water

    asked by Callie on February 26, 2015
  51. Stoichiometry problem

    I'm stuck and am hoping you can help. Here is the problem: You react 7.92 grams of silver nitrate, AgNO3(aq), with an excess of sodium chloride, NaCl(aq). How many grams of silver chloride, AgCl(s), will precipitate from the solution? Any help would be

    asked by Rachel on September 10, 2006
  52. Chemistry

    The density of pure gold is 19.3 g/centimeter cube. A quantity of what appears to be gold has a mass of 465 grams and a volume of 26.5 mL. Is the substance likely to be pure gold? please tell me how you got your answer. Thanks! density = mass/volume You

    asked by Sarah on February 15, 2007
  53. Chemistry

    1) Determine the Kc for the following experimental conditions: compound A+compound B --> Compund D Compound: A B M 0.003 0.0023 Volume used: 5 mL 8 mL Total volume = 25 mL, using graph 2 and a %T of 24 for compund D molecular weight compund D = 535 g/mol

    asked by Anonymous on March 4, 2013
  54. chemistry

    Predict the effect (Increase, Decrease, No effect, Indeterminate)and explain why 1. Condition: In the determination of water hardness, the water sample contained appreciable amount of ferric ions Paameter: ppm CaCO3 2. Condition: Instead of MgCl2*H2O,

    asked by :kkk: on August 31, 2007
  55. analytical chemistry

    Predict the effect (Increase, Decrease, No effect, Indeterminate)and explain why 1. Condition: In the determination of water hardness, the water sample contained appreciable amount of ferric ions Paameter: ppm CaCO3 2. Condition: Instead of MgCl2*H2O,

    asked by :kkk: on August 31, 2007
  56. CHemistry....Please help...DrBobb

    I posted this up yesterday: I have to use the equation : density= mass/ volume: But i don't know how to find out the volume using the edge length of the unit cell which is 5.88* 10^2 pm. CHemistry....Please help - DrBob222, Sunday, January 25, 2009 at

    asked by Saira on January 26, 2009
  57. Chemistry

    In a titration for the determination of the chloride ion, a solution of 0.1M agno3 is used against a solution, the volume of which is 100ml. At the completion of the titration, the residual concentrations of silver and chloride ions are equal and the total

    asked by Michelle on October 22, 2014
  58. Chemistry

    What is the freezing point (°C) of a solution prepared by dissolving 11.3 g of Ca(NO3)2 in 115 g of water? The molal freezing point depression constant for water is 1.86°C/m. (Note that when Ca(NO3)2 dissolves in water Ca2+ and NO32- ions are produced).

    asked by Henry on May 25, 2012
  59. chemistry

    Calculate the vapor pressure of a solution containing 28.7g of glycerin (C3H8O3) in 136mL of water at 30.0 ∘C. The vapor pressure of pure water at this temperature is 31.8 torr. Assume that glycerin is not volatile and dissolves molecularly (i.e., it is

    asked by Emily on November 24, 2014
  60. science

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

    asked by Anonymous on April 6, 2012
  61. calculus

    A trough is 12 feet long and 3 feet across at the top. It ends are isosceles triangles with a height of 3 feet. If water is being pumped into the trough at 2.5 cubic feet per minute, how fast is the water level rising when the water is 1 foot deep?

    asked by Kelsey on October 16, 2011
  62. Chemistry

    A quantity of ice at 0.0°C was added to 25.6 g of water at 21.0°C to give water at 0.0°C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(g · °C). I don't understand how to set this problem up (what

    asked by Ryan on October 9, 2008
  63. physics

    How do you do this problem? The water used in many fountains is recycled. For instance, a single water particle in a fountain travels through an 85 m system and then returns to the same point. What is the displacement of a water particle during once cycle?

    asked by Anonymous on September 17, 2006
  64. Science

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

    asked by Tameika on October 10, 2011
  65. Science

    In an experiment, BEtsy dissolves 18 grams of powdered dye in 100 grams of pure water. The colored water is then heated on a hot plate, whenthe colored water evaporates completely, how much dye will be left?

    asked by Thalia on February 16, 2011
  66. Chemistry

    The concentration of Ca2+ in a particular water supply is 5.7×10−3M. The concentration of bicarbonate ion, HCO−3, in the same water is 1.7×10−3M. What masses of Ca(OH)2 and Na2CO3 must be added to 5.6×107L of this water to reduce the level of Ca2+

    asked by Rebecca on March 26, 2014
  67. physics

    A pump is installed in the basement of a 10-storey building in order to supply the occupants with water. Each storey is 3m high. How much pressure must the pump exert on the water so that the water reaches the 10th floor with a pressure of 400 kPa?

    asked by Jenna on September 2, 2010
  68. chem

    Suppose you have two 100-mL graduated cylinders. In each cylinder there is 40.0mL of water. You also have two cubes: one is lead, and the other is aluminum. Each cube measures 2.0cm on each side. After you carefully lower each cube into the water of its

    asked by k on September 2, 2014
  69. science

    I'm having trouble with this homework question, I don't really trust sites like these but I don't have any other choice, so here it goes: The sound of speed in water(25 degrees Celsius) is traveling at 1,500m/s. How far can sound travel in water in 2.5

    asked by Bailey on February 1, 2011
  70. Chemistry

    A quantity of ice at 0.0°C was added to 25.6 g of water at 21.0°C to give water at 0.0°C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(g · °C). I don't understand how to set this problem up (what

    asked by Ryan on October 9, 2008
  71. chemistry

    A solution is prepared by adding 30.00 g of lactose (milk sugar) to 110.0 g of water at 55 °C. The vapor pressure of pure water at 55 °C is 118.0 torr. The MW of lactose is 342.3 g/mol. What is the partial pressure of water above the solution?

    asked by Anonymous on November 7, 2011
  72. HVAC

    Two HVAC technicians are discussing the properties of water.Technician A says that if the pressure of water is raised,the boiling point will decrease.Technician B says that placing water in a vacuum will cause its boiling point to increase.Which of the

    asked by simon on December 14, 2017
  73. Biology { PLEASE HELP :D }

    From an ATP production viewpoint, use fact B to make a statement regarding the efficiency of fats vs. carbs. Fact b - Carbs bind and store water. The metabolism of water yields no ATP. Fat has no water bound to it.

    asked by Emily on March 26, 2013
  74. Chem

    41. How much heat energy must you use to raise the temperature of 100 grams of water from 60C to 70C. Show your calculations. 42. You have a pot of 100C liquid water. If you add heat to the water, will the temperature start to raise at once? why or why

    asked by Sierra on September 15, 2014
  75. physics

    water and glass with refractive index of 1.5 are interfaced.if the incident ray are from the water makes an angle 60 degrees with the normal.find the direction of the reflected and refracted rays(given that refractive index of glass to water=1.33)

    asked by joe on November 25, 2015
  76. physics

    A water balloon is dropped from the top of a building. Assume the balloon does not break when it strikes the ground. If the water balloon falls a distance of 21m, what is the maximum temperature rise of the water balloon due to it being dropped?

    asked by Maria on October 12, 2010
  77. Physics

    A bucket is filled with a combination of water (density 1,000 kg/m3) and oil (density 700 kg/m3). These fluids do not mix. (The oil will float on top of the water.) If the layer of oil is 63 cm tall, what is the pressure at the interface between the oil

    asked by Sierra on July 26, 2012
  78. science

    Bess filled a syringe with water and left it by the sink in the sunshine. Ten minutes later she saw a puddle of water under the syring tip so she thought it was broken, but it wasnt. What do you think caused the little puddle of water to appear under the

    asked by Caroline on February 4, 2008
  79. Chemistry Science

    A piece of iron with a mass of 35 g is heated to 1305oC and then placed in a calorimeter containing 600 g of water. The temperature of the water increases from 25oc to 33oC. The specific heat of water is 4.184 J/g X C. Calculate the specific heat of the

    asked by vvfrn on May 28, 2012
  80. chemistry

    A student estimated the volume of liquid in a beaker as 200 mL. When she poured the liquid into a graduated cylinder, she measured the volume as 216 mL. What is the percent error of the estimated volume from the beaker, taking the measurement in the

    asked by paul on October 2, 2011
  81. PHYSICS 102E

    1. A glass flask whose volume is exactly 1000cm^3 at 0 degrees Celsius is completely filled with mercury at this temperature. When the flask and mercury are heated to 100 degrees Celsius, 15.2cm^3 of mercury overflow. If the coefficient of volume expansion

    asked by Akitsuke on December 14, 2008
  82. Chemistry II

    The enthalpy of neutralizatino for the reaction of a strong acid with a strong base is -56 kJ/mol of water produced. How much energy will be released when 230.0 mL of 0.400 M HCl is mixedwith 150.5 mL of 0.500 M NaOH? How much water is produced in the

    asked by Jayd on May 20, 2007
  83. Algebra- I get 1 out of two parts

    Owners of a recreation area are filling a small pond with water. They are adding water at a rate of 25 liters per minute. There are 700 liters in the pond to start. Let W represent the amount of water in the pond (in liters), and let T represent the number

    asked by Rachal on May 12, 2011
  84. Algebra

    Owners of a recreation area are filling a small pond with water. They are adding water at a rate of 25 liters per minute. There are 700 liters in the pond to start. Let W represent the amount of water in the pond (in liters), and let T represent the number

    asked by Rachal on May 12, 2011
  85. physics

    A model rocket is launched from rest with an upward acceleration of 5.50 m/s^2 and, due to a strong wind, a horizontal acceleration of 1.50m/s^2 . How far is the rocket from the launch pad 7.20 later when the rocket engine runs out of fuel?

    asked by katelin on September 24, 2012
  86. Science

    A 1 420kg car coasts in neutral down a 2.0 degrees hill. The car attains a terminal velocity of 24.3 meters per second. How much power must the engine deliver to drive the car on a level road at 24.3 meters per second?

    asked by Lionel on April 11, 2016
  87. math

    a certain company makes inflatable swimming pools that come in four rectangular sizes.the length of each pool is twice the width and twice the depth.the pools are 1 foot ,2 feet,3 feet and 4 feet deep.what is the area of the surface of tge water of each

    asked by bianca on April 11, 2011
  88. Physics

    A fountain has a cylinder with holes placed on the side at heights of 1 m and 2 m. The water level is the cylinder is kept at a height of 3 m by an input type. The water emerges from the holes and strikes the fountain pool at some distance x. a. What

    asked by Alfred on February 6, 2011
  89. Physics please help!!

    Suppose you pour water into a container until it reaches a depth of 30.2 cm. Next, you carefully pour in a 14.8 cm thickness of olive oil so that it floats on top of the water. What is the pressure at the bottom of the container? Assume 1000 kg/m3 and 901

    asked by Megan on March 16, 2011
  90. chemistry

    the enthalpy of fusion of ice is 6.02 kJ/mol. the heat capacity of liquid water is 75.4 J/molC. What is the smallest number of ice cubes at 0 degrees C each containing one mole of water, necessary to cool 500g of liquid water initially at 20.0 degree C to

    asked by el on May 24, 2011
  91. science

    a 150g of a metal at 80degree C is placed in 100cm3 of pure water at 20degree C. the final temperature of the system (metal+water) is 23degree C. what is the specific heat of the metal? i got the ans -0.16 by using formula mCdelta T(water)=mCdeltaT(metal)

    asked by asra on April 9, 2012
  92. Calculus (Help please)

    A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters

    asked by Jordan on January 9, 2012
  93. Math (Calculus)

    A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters

    asked by Jordan on January 9, 2012
  94. Math (Calculus)

    A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters

    asked by Jordan on January 9, 2012
  95. math 3

    Gwen pours 236 milliliters of water into Ravi's beaker. Henry pours 189 milliliters of water into Ravis beaker. Ravis beaker now contain 800 milliliters of water. How much water was in Ravis beaker to begin with? my answer is 375 is this correct?

    asked by bb love on February 12, 2015
  96. Physics

    an empty rd bottle weighs 60 grams but weighs 120 gram when completely filled with water when the bottle is completely with an unknown liquid it weighs 90 gram what will be the volume of the rd bottle

    asked by Rayan on July 19, 2016
  97. economic

    in the United States more than 50 firms produce textile, bur only 3 produce automobiles. This statistic shows that government antimonopoly policy has been applied more harshly to the textile industry than to the automobile industry. Can you give an

    asked by mlk007 on April 1, 2009
  98. Chemistry

    A sample of unknown metal has a mass of 36.7 g. This metal was placed in boiling water at 96.0oC until the metal had reached the temperature of the water. The metal was then placed in a foam cup with 50.0 g of water in it at 20.0oC. The cup absorbs 42.0

    asked by katie on November 10, 2013
  99. Math

    Math Question = an aquarium holds 6 and 1/4 gallons of water. the water level dropped to 4/5 of this amount .how much water should be added to fill the aquarium Above is my son's math question and we can't figure out how to solve it. The possible answers

    asked by Suzanne on September 17, 2013
  100. Chem 111

    A cylindrical tank measuring 6.00 feet in diameter and 17 feet, 6 inches, in length is filled with room temperature water. How many kilograms and pounds does the water weight? The density of room temperature water is 1.00 g/mL.

    asked by mike on January 6, 2017