1. Math - Cubes

    Consider a cube of side 100cm. Consider two diaganolly opposite points (the main body diagnol) as A and B. The cube is kept flat on the ground, and is filled with water upto a 40cm height. Now, the cube is tilted such that AB is vertical. What's the height

    asked by Arora on December 29, 2017
  2. Math 6 Help!!!

    Danny poured 78 liters of water into containers X, Y, and Z. The ratio of the volume of water in Container X to the volume of water in Container Y is 5 : 2. The ratio of the volume of water in Container Y to the volume of water in Container Z is 8 : 11. a)

    asked by Rod on December 12, 2012
  3. Physics

    A power boat of mass 495 kg is cruising at a constant speed of 8.9 m/s. The propeller provides a drive force of 780 N. The driver of the boat shuts off the engine, and the boat coasts to a halt. Assume-contrary to fact-that the resistive force due to the

    asked by John on February 25, 2008
  4. physics

    A power boat of mass 465 kg is cruising at a constant speed of 8.9 m/s. The propeller provides a drive force of 765 N. The driver of the boat shuts off the engine, and the boat coasts to a halt. Assume-contrary to fact-that the resistive force due to the

    asked by Xavier on October 23, 2010
  5. Physics

    A power boat of mass 460 kg is cruising at a constant speed of 8.9 m/s. The propeller provides a drive force of 765 N. The driver of the boat shuts off the engine, and the boat coasts to a halt. Assume-contrary to fact-that the resistive force due to the

    asked by Peter on February 25, 2008
  6. Literacy

    A quick way to get the definition of "mensa" when working on the Internet would be to type A. "allintitle:mensa" into the search engine. B. "info:mensa" into the search engine. C. an e-mail to the librarian. D. "define:mensa" into the search engine. my

    asked by Heather on January 17, 2012
  7. Physics

    The pressure-volume graph shows an engine cycle where the working substance is an ideal monatomic gas (γ = 5/3). The process A-B is adiabatic. At point A, the pressure is 2.70×105 Pa and the volume is 0.0180 m3. At point B, the volume is 0.0450 m3.

    asked by Jamie on June 25, 2012
  8. Science

    Imagine a rock submerged in a glass of water. If the volume of water measured equals 15 ml and the volume of a rock plus the water equals 18 ml, what is the volume of the rock by itself? 3

    asked by Hayden on April 23, 2018
  9. physics

    In a diesel engine, the piston compresses air at 302 K to a volume that is 0.0628 of the original volume and a pressure that is 48.2 times the original pressure. What is the temperature of the air after the compression? I know pv = nRT, but I don't know

    asked by Karen on April 26, 2008
  10. Chem

    Classify each situation by the equation that would quantify it. A. A container of ammonia cleaner is stored in the janitor's closet off a lecture hall after being used at night for cleaning. The container has a very small hole in the lid. The next morning

    asked by Kaylee on October 26, 2010
  11. Math

    In 500cmcube of alcohol solution the percentage of alcohol by volume is 80%. Find the volume of water that must be added to the solution so that the ratio of the volume of alcohol to that of water becomes 5:2? Please some one give me answer

    asked by Mani on November 18, 2012
  12. General Math

    This is something about rational functions and I was given an assignment to be answered: Liway has 6 liters of a pineapple juice blend. What is 50% pure pineapple juice. How many liters of pure pineapple juice and to be added to make the blend 75%

    asked by Jeremy Nell on July 7, 2016
  13. Chemistry

    Ross pours water at 6.0 C into a container with a pressure of 23. torr. He then boils the water to a temperature of 34 C. The volume changes to 18. mL and pressure to 78. torr. What was the initial volume of the water?

    asked by anon on March 6, 2017
  14. Chemistry

    Ross pours water at 6.0 C into a container with a pressure of 23. torr. He then boils the water to a temperature of 34 C. The volume changes to 18. mL and pressure to 78. torr. What was the initial volume of the water?

    asked by Anonymous on March 7, 2017
  15. geometry math

    There is an upside-down cone that is 12m high and has a circular base with a radius of 4m that is being filled with liquid. Make V, the volume, a function of the height of the liquid, h. What is the volume of the cone when the water is 5m deep? V =

    asked by CrazyFeet on July 8, 2007
  16. physical science

    A merchant in Kathmandu sells you a solid gold 1-kg statue for a very reasonable price. When you get home, you wonder whether you got taken, so you lower the statue into a container of water and measure the volume of displaced water. Show that for 1 kg of

    asked by Rachel on February 24, 2008
  17. engineering

    A steel cylinder has a volume of 0.26 L and holds 4 kg of water at 25˚C and 200 kPa. (a) Find the total mass and total volume of the system (cylinder + water). (b) Give the values for two EXTENSIVE properties and two INTENSIVE properties of the water.

    asked by nick on August 29, 2012
  18. Physics

    A steam engine's boiler completely converts 155 kg of water to steam. This process involves the transfer of 3.5 x 10^8 J by heat. If steam escaping a safety valve does 1.76 x 10^8 J of work against the outside atmosphere, what is the net internal energy of

    asked by Lindsay on March 26, 2008
  19. Physics

    Table 1: Temperature and volume data Trial Temperature (Celsius) Volume (mL) Starting Volume Room Temperature = Hot Water Trial 1 106 5.2ml Hot Water Trial 2 107 5.4ml Cold Water Trial 1 lo 4.3ml Cold Water Trial 2 lo 4.3ml PLOT AREA (Insert a graph that

    asked by Char on April 20, 2014
  20. Math help?

    I am stuck. Mike's truck engine holds 1 1/4 gallons of oil. If there are 3 quarts of oil in the engine now, how many more quarts of oil does Mike need to add to fill the engine to capacity? Having trouble on do I subtract or?? what do I do

    asked by Moby on January 28, 2013
  21. math

    a freight train is traveling 30mph. An automobile starts out from the same place 1 hour later and overtakes the train in 3 hours. What was the rate of the automobile?

    asked by Beth on February 8, 2013
  22. College Physics

    Which one of the following statements about a thermodynamic engine is not true, i.e., which one of the statements is false? 1)The internal energy is always the same at the beginning and at the end of one cycle. 2)The absorbed and the exhausted heat have

    asked by Tracy on November 22, 2010
  23. physics

    An automobile of mass 1.46 E3 kg rounds a curve of radius 25.0 m with a velocity of 15.0 m/s. The centripetal force exerted on the automobile while rounding the curve is?

    asked by Anonymous on December 17, 2012
  24. Physics

    A lawnmower engine with an efficiency of 0.29 rejects 5500 J of heat every second. What is the magnitude of the work that the engine does in one second?

    asked by Tim on May 5, 2013
  25. science

    A toyota engine has an efficiency of 45% and produces 3010J of work. How much heat does the engine reject?

    asked by Davidson on February 22, 2013
  26. SCIENCE

    a. An engine has a reservoir of 8000 J and has a sink of 1000 J.i. Find the work generated by the engine.

    asked by KAIT on August 18, 2011
  27. Physics

    An engine does 15kJ of work while rejecting 37 kJ to the cold reservoir. What is the efficiency of the engine?

    asked by P on November 22, 2012
  28. Physics

    An engine does 15kJ of work while rejecting 37 kJ to the cold reservoir. What is the efficiency of the engine?

    asked by B on November 23, 2012
  29. RATIOS

    A MODEL TRAIN IS 1;48 ON SCALE. THE ENGINE IS 13 5/8 INCHES. HOW MANY FEET IS THE ACTUAL ENGINE?

    asked by alice on February 24, 2013
  30. chemistry

    A spark plug fires before the gases in a cylinder are fully compressed. How will the engine be affected? A. The engine will get better gas mileage as less fuel is burned during each cycle. B. There will be fewer pollutants as the fuel has more time to

    asked by Cortney on March 25, 2015
  31. chemistry

    A spark plug fires before the gases in a cylinder are fully compressed. How will the engine be affected? A. The engine will get better gas mileage as less fuel is burned during each cycle. B. There will be fewer pollutants as the fuel has more time to

    asked by Cortney on March 25, 2015
  32. chemistry

    A spark plug fires before the gases in a cylinder are fully compressed. How will the engine be affected? A. The engine will get better gas mileage as less fuel is burned during each cycle. B. There will be fewer pollutants as the fuel has more time to

    asked by Cortney on March 24, 2015
  33. physics

    an unknown force pushes an automobile of mass 1700kg. The automobile is ground level and accelerates at a rate of 3 meters per second squared.what is the magnitude of the force?

    asked by tg on September 3, 2011
  34. physics

    Calculate the acceleration of a 2000-kg, single-engine airplane just before takeoff when the thrust of its engine is 500 N.

    asked by iggy on February 9, 2010
  35. Physical Science

    A heat engine exhauts 122.0 kal after taking 499.0 how much mechanical work was done by the engine?

    asked by Barbara on September 16, 2014
  36. PHYSICS PLEASE HELP DUE SOON

    Carnot engine operates between 170°C and 23°C. How much ice can the engine melt from its exhaust after it has done 4.5 104 J of work?

    asked by amela on November 30, 2012
  37. physical science

    if an engine must do 500 joules of work to pull a 10 kg load up to to a height of 4 meters ,what is the efficiency of the engine ?

    asked by llulia on August 4, 2010
  38. science

    if an engine must do 500 joules of ork to pull a 10 kg load up to a height of 4 meters what is the efficiency of the engine

    asked by johanna on March 24, 2009
  39. HELP! Physics

    A heat engine operates between two reservoirs at temperatures of 19.7oC and 294oC. What is the maximum efficiency possible for this engine?

    asked by Erika on November 17, 2012
  40. Physics

    A Carnot engine operates between 170°C and 23°C. How much ice can the engine melt from its exhaust after it has done 4.5 104 J of work? (kg)

    asked by Sam on November 26, 2012
  41. PHYSICS DUE SOON

    A Carnot engine operates between 170°C and 23°C. How much ice can the engine melt from its exhaust after it has done 4.5 104 J of work?

    asked by Ame on November 29, 2012
  42. physics

    Carnot engine operates between 170°C and 23°C. How much ice can the engine melt from its exhaust after it has done 4.5 104 J of work?

    asked by amela on November 30, 2012
  43. chemistry

    The volume of 02 collected over water at 25 Celcius and 740 torr was 250 mL. What volume will the dry 0x occupy at STP (Vapor pressure of water at 25 celcuis is 23.8 torr)

    asked by dody on December 3, 2010
  44. Chemistry

    The volume of 02 collected over water at 25 degree C and 740 torr, was 250 mL. What volume will the dry 02 occupy at STP? (Vapor pressure of water at 25 degre C is 23.8 torr).

    asked by dody on December 5, 2010
  45. PHYSICS

    The density of ice is 0.92 g cm-3 & that of sea water is 1.025 g cm-3.Find total volume of an iceberg which floats with its volume 800 cm3 above water. ANSWER:7809.5 cm3

    asked by MOHIT on February 10, 2012
  46. Physics

    A piece of metal of volume 250 centimetre cube floats in water when 85 percent of its volume is under water.Calculate the upthrust on the metal. [pw=1.0gcm^-3]

    asked by George on January 8, 2017
  47. SS

    What best explains why Canada is characterized as a mosaic rather than as a melting pot? Throughout Canada the only language spoken is French. Canadian culture encourages immigrants to blend together to form a single culture. Canadian culture is based only

    asked by Anonymous on March 26, 2018
  48. Physics

    In one cycle a heat engine absorbs 450 J from a high-temperature reservoir and expels 290 J to a low-temperature reservoir. If the efficiency of this engine is 57% of the efficiency of a Carnot engine, what is the ratio of the low temperature to the high

    asked by Melissa on June 20, 2011
  49. Physics

    In one cycle a heat engine absorbs 530 J from a high-temperature reservoir and expels 310 J to a low-temperature reservoir. If the efficiency of this engine is 55% of the efficiency of a Carnot engine, what is the ratio of the low temperature to the high

    asked by Stefan on December 4, 2010
  50. Algebra

    A coffee distributor needs to mix a(n) House coffee blend that normally sells for $8.40 per pound with a Mexican Shade Grown coffee blend that normally sells for $14.70 per pound to create 70 pounds of a coffee that can sell for $14.61 per pound. How many

    asked by Starlet on February 7, 2016
  51. chem

    Calculate the final concentration of a. 4.0 L of a 4.0 M HNO3 solution is added to water so that the final volume is 8.0L b. Water is added to 0.35L of a 6.0M KOH solution to make 2.0L of a diluted KOH solution. c.A 20.0 mL sample of 8.0% (m/v)NaOH is

    asked by tracy on November 8, 2012
  52. Science

    Table 1: Temperature and volume data Trial Temperature (Celsius) Volume (mL) Starting Volume Room Temperature = Hot Water Trial 1 107 5.6ml Hot Water Trial 2 108.3 5.4ml Cold Water Trial 1 lo 4.4ml Cold Water Trial 2 lo 4.4ml PLOT AREA (Insert a graph that

    asked by ThuyD on January 30, 2012
  53. Physical Science

    If an engine must do 500 joules of work to pull a 100 N load up to a height of 4 meters, What is the efficiency of the engine?

    asked by Brittany on November 14, 2009
  54. Physics Can you please help me due soon

    A Carnot engine operates between 170°C and 23°C. How much ice can the engine melt from its exhaust after it has done 4.5 104 J of work? _____kg

    asked by amela on November 30, 2012
  55. Chemistry

    A spark plug fires before the gases in a cylinder are fully compressed. How will the engine be affected? A. The engine will get better gas mileage as less fuel is burned during each cycle. B. There will be fewer pollutants as the fuel has more time to

    asked by Cortney on March 24, 2015
  56. chemisty problem help

    Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 70 pm. Calculate the volume of the nucleus and the volume of the atom. What percentage of the carbon atom's volume is occupied by the nucleus? Can someone tell me how

    asked by Tagen on February 9, 2007
  57. Physics

    An automobile has four tires, each one inflated to a gauge pressure of 176,357 Pa. Each tire is slightly flattened by its contact witht he ground, so that the area of contact is 21.9 cm by 17.9 cm. What is the weight of the automobile?

    asked by Kirsten on July 24, 2015
  58. Physics

    A 5.00-grain aspirin tablet has a mass of 320 mg. For how many kilometers would the energy equivalent of this mass power an automobile? Assume 12.75 km/L and a heat of combustion of 3.65x10^7 J/L for the gasoline used in the automobile.

    asked by Brian on December 16, 2012
  59. Chem

    Volume of nitrogen gas is 125ml atmospheric pressure is 763mm Hg the water temperature inside the eudiometer is the same as the level of the water in the beaker. Calculate the volume if the nitrogen at STP. P1V1/T1=P2V2/T2

    asked by Steve on April 9, 2015
  60. physics

    How would you calculate the diameter of an oil molecule.A droplet of oil of given volume (cm cubed)is dropped onto a surface of water and spreads to fill area (cm square).The thickness of water is equal to the diameter of the molecule.Is there a formula to

    asked by mo. on February 18, 2007
  61. physics

    an engine block of mass 275kg rest on a plane which is inclined at 13 degrees to the horizontal.if the plane can be tilted to a maximum angle of 21 degrees before the engine block slide due to its weight.calculate the minimum force parallel to the plane

    asked by charles on October 6, 2010
  62. Science

    How can a graduated cylinder marked in milliliters be used to measure the volume of a small wooden block? Hurry up and answer this for me!!!!!! put 100ml water into the cylinder, then put the block into the water and measure how many ml are indicated on

    asked by Margaret on September 14, 2006
  63. Physics

    A piece of wood of mass 60kg and density 600kg/m3 flows in water of density of 1000kg/m3.calculate (a) volume of water that the wood displaced (b) the fraction of volume of mass and water

    asked by Pauliho on August 27, 2016
  64. physics

    What equation should I used for a water bottle rocket lab? I am using distance vs volume of water. Of course, the volume of water is my independent variable. What equation should I use for this lab?

    asked by Julia on August 31, 2010
  65. chemistry

    Divers know that the pressure exerted buy the water increases about 100kpa with every 10.2 m of depth. This means that at 10.2 m below the surface, the pressure is 201 kpa; at 20.4 m , the pressure is 301 Kpa; and so forth. Given that the volume of a

    asked by Natasha on February 7, 2014
  66. Physics

    A Silver bowl has a mass of 1.78kg. It is shaped like a cylinder and has a diameter of 35.0 cm and a height of 8.00cm. It is placed in water. Find (a)the volume of water it displaces, (b) The buoyant force exerted on it by the water, and(c)how deeply it

    asked by ed on November 7, 2011
  67. Physics

    The four tires of an automobile are inflated to a gauge pressure of 1.8E10^5 Pa. Each tire has an area of 0.025 m2 in contact with the ground. Determine the weight of the automobile. I was helped with this before, but the answer was wrong. Can someone

    asked by Elisa on July 22, 2008
  68. Science

    How do you measure body volume? I need two ways. Thanks. Displacement is a common method. Fill a barrel full of water, then dunk the body (letting the water overflow), remove the body, and then measure the water level. Another method is to use air

    asked by Laura on September 4, 2006
  69. physics

    How much paraffin oil would be needed to heat the same volume of water? • Heat capacity of water = 4200 j kg-1 K-1 • Mass of 1 litre of water = 1kg • Heat value of paraffin = 45M J kg-1 • Density of paraffin = 800kg m -3 • 1 cubic centimetre

    asked by Paul on December 15, 2010
  70. science**

    Which of the following would act as the best insulator of electric current? 1- water. 2- a tree. 3- a copper wire. 4- an automobile tire. 5- a human.

    asked by Anonymous on July 11, 2011
  71. science

    which of the following would act as the best insulator of electric current? a. water b. a tree c. a copper wire d. an automobile tire e. a human

    asked by belk on August 30, 2011
  72. physis

    an engine was used to lift up a load of 200kg to a platform 40m high in 20sec. calculate the power out put by the engine (take g =100n /kg).

    asked by afeez on October 7, 2011
  73. math

    Hi! Can anyone give me some tips on how i would determine the shape of a vessel from a graph of volume vs time? "a set volume of water is poured steadily into a vessel, the height at set volume intervals is recorded." "determine a possible vessel shape

    asked by bob on August 14, 2008
  74. Physics

    A jet engine produces a sound level of 150 dB from a distance of 30 m (assuming spherical dissipation). The average human ear has an effective area of 12.0 cm2. What is the sound level at 60 m from a jet engine is? What would the power intercepted by an

    asked by Teagan on May 28, 2014
  75. algebra

    A coffee distributor needs to mix a(n) Queen City coffee blend that normally sells for $9.60 per pound with a Tanzanian coffee blend that normally sells for $11.20 per pound to create 80 pounds of a coffee that can sell for $9.84 per pound. How many pounds

    asked by Tina on October 26, 2015
  76. Math

    A coffee dealer mixed 12 pounds of one grade coffee with 10 pounds of another grade of coffee to obtain a blend worth $54. He then made a second blend worth $61 by mixing 8 pounds of the first grade with 15 pounds of the second grade. Find the price per

    asked by Jamese on October 21, 2012
  77. math

    A glass in the form of a frustum of a cone is represented by the diagram below. The glass contains water to height of 9 cm. The bottom of the glass is circle of radius 2cm while the surface of the water is a circle of radius 6 cm. (a) Calculate the volume

    asked by Anonymous on June 3, 2012
  78. Chemistry

    Can you check my answers? Thanks!!!! What would happen to the volume-to-temperature ratio if: 1. One student failed to replenish the boiling water in the boiling-water bath as the flask was being heated. At the end of the 6 min of heating, the boiling

    asked by Steve on November 7, 2016
  79. Chemistry (Combustion) formula question

    Data; Volume of water, 100ml Room temp, 24C Initial water temp, 15C Final water temp, 30C Question: Calculate the mass of water heated. Hint: The density of the liquid water is 1.0g/ml. I have no idea how to do this. Can someone help? Thanks!

    asked by Allyson on February 5, 2013
  80. Science

    How might a sucker mouth help a tadpole survive in a river ecosystem? A. It helps the tadpole stay in place while feeding. B. It lets the tadpole move quickly through water currents. C. It enables the tadpole to defend itself from its predators. D. It

    asked by Anonymous on December 20, 2012
  81. PHYSICS

    what work must a diesel engine in an 18,000kg truck do to increase its speed from 30.m/s to 40 m/s in 5.0s? what average force did the engine exert? what power was needed (in horsepower)

    asked by EMMA on August 6, 2014
  82. Physics

    In one cycle, an engine burning a mixture of air and methanol (methyl alcohol) absorbs 525 J and expels 413 J. How much work is done by this engine?

    asked by please help on January 13, 2013
  83. Chemistry Lab

    Data and Calculations: 1. Volume of water in calorimeter: 100.0 mL 2. Mass of water in calorimeter (water's density 1.00g/mL): 100.0g 3. Initial Temperature of water in calorimeter:19.5 degrees Celsius 4. Final Temperature of water in calorimeter: 3.0

    asked by Coolest on February 7, 2017
  84. physics

    A person is driving an automobile at 95 km/h and throws a bottle of mass .600 kg straight out the window. a) With what momentum does the bottle hit the roadway sign? b) With what momentum does the bottle hit an oncoming automobile traveling in the opposite

    asked by Oja on July 16, 2012
  85. Thermodynamics

    A 10m height cylinder with cross sectional area of 0.1 m2 has a massless piston at the bottom as shown in Figure Q2. Water is at the top of the piston with air at 20oC over it. Under the piston there is air at 300K. The volume of the air is 0.3m3. Heat is

    asked by Hao on April 14, 2014
  86. Thermodynamics

    A 10m height cylinder with cross sectional area of 0.1 m2 has a massless piston at the bottom as shown in Figure Q2. Water is at the top of the piston with air at 20oC over it. Under the piston there is air at 300K. The volume of the air is 0.3m3. Heat is

    asked by Hao on April 14, 2014
  87. Chemistry

    I need to duplicate the strength of lye made from wood ash dissolved in water (Potassium Hydroxide) to that of lye made from Sodium Hydroxide disolved in water. The soap recipes I use require lye of various strengths as determined by fluid volume of water

    asked by Jeff on February 28, 2011
  88. Math Probability

    An insurance sales representative selects 3 policies to review. The group of policies she can select from contains 8 life policies, 5 automobile policies, and 2 homeowner policies. Find the probability of selecting” (a) All life policies (b) Both

    asked by Mark on August 16, 2010
  89. physics

    The drawing shows a jet engine suspended beneath the wing of an airplane. The weight W with arrow of the engine is 11900 N and acts as shown in the drawing. In flight the engine produces a thrust T with arrow of 64500 N that is parallel to the ground. The

    asked by nj on April 17, 2016
  90. physics

    A boat floating in fresh water displaces water weighing 35.6 kN. (a) What is the weight of the water this boat displaces when floating in salt water of density 1.10 x 10^3 kg/m^3? (b) What is the difference between the volume of fresh water displaced and

    asked by Meghan on November 14, 2010
  91. Calculus

    The hemispherical tank shown is full of water. Given that water weighs 62.5 lb/ft3, find the work required to pump the water out of the tank. ---------- What is shown is just the tank (a hemisphere) with a radius of 5 ft. ---------- First I calculated the

    asked by COFFEE on June 19, 2007
  92. math

    Beaker A,B and C contain water with a total volume of 1 litre.Beaker B has 125 millilitres less water than beaker A. Beaker B has twice as much water than Beaker C.Find the volume of water in beaker B.

    asked by harry on September 3, 2015
  93. Physics Help!!!!!!!!!!!!!!!!

    Suppose you were asked to develop a concept of "automobile current" ( a current formed by moving cars) for traffic on an interstate or busy street near you. a) what would be the units of "automobile current"? b) what info would be the "automobile current"

    asked by Urgent Help on February 11, 2015
  94. Chemistry 2

    I have to calculate the Ccal using the following info: Initial Temp of water outside calorimeter=22.6 C Initial Temp of water inside the calorimeter= 100 C Volume of water in calorimeter= 50mL Volume of water outside calorimeter= 300mL Final Temp of water

    asked by Lily on July 16, 2011
  95. Chemistry

    The Densities of Liquids and solids O.k. so here is my problem. I will give you the whole problem just incase my mistake is somewhere else, but the volume for the metal and the density for the metal in the end seem to be wrong. (Density of unknown liquid)

    asked by Sara on August 22, 2007
  96. Physics

    This is a very confusing problem, I had never taken physics before and it is going to kill my GPA. can someone please help me solve this problem. I have a quiz coming up. Thanks for the help. The flywheel of an old steam engine is a solid homogeneous metal

    asked by Rhyan on October 31, 2014
  97. Physics

    A diesel engine takes in 0.5 moles of air at 20.0C and at atmospheric pressure. It then compresses it adiabatically to one twentieth of its original volume. which means n = 0.5 T = 20 and Vfinal = V1/20 but where do I go from here? can anyone help?

    asked by Physics on August 3, 2010
  98. Math

    Christine's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Christine $5.85 per pound, and type B coffee costs $4.40 per pound. This month, Christine made 174 pounds of the blend, for a total cost of $906.25. How

    asked by John on June 1, 2015
  99. Physics please check

    Please tell me where i went wrong. During an all-night cram session, a student heats up a one-half liter (0.50 10-3 m3) glass (Pyrex) beaker of cold coffee. Initially, the temperature is 19°C, and the beaker is filled to the brim. A short time later when

    asked by Mary on April 14, 2007
  100. Dilution

    What volume of H2O should be added to 500 ML of a 1.0 mol/L CuSO4 solution to dilute it to 0.5 mol/L? This is what I have so far... H20 + CuSO4 --------> H2SO4 + CuO So you use the formula M1V1 = M2V2 so its (0.500)(1.0) = (0.5)(V) Solve for V, I got 1.0

    asked by Rienna on January 29, 2007