1. 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
  2. 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
  3. 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
  4. 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
  5. 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.
  6. math

    A truck has 5.9L engine in it. 5.9L of the overall displacement in 6 cylinders each 102mm bore (diameter) and 120mm stroke (length). Engine operates at 16.3:1 compression ratio and with 6psi (0.41atm) of boost cruising at 1600rpm. What is the volume of ONE
  7. Geometry

    Need help solving this problem so confused The tries of an automobile have a diameter of 22 inches. If the wheels revolve ten times, how far does the automobile move? Round your answer to the nearest tenth of a foot and show your work
  8. physics

    n automobile traveling at a speed of 29.3 m/s applies its brakes and comes to a stop in 4.9 s. If the automobile has a mass of 1.2 103 kg, what is the average horizontal force exerted on it during braking? Assume the road is level. magnitude N direction
  9. 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
  10. 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
  11. 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
  12. 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?
  13. 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 =
  14. 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
  15. 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
  16. 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.
  17. 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
  18. 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?
  19. 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.
  20. Phyics

    A Carnot engine has 200 g of helium as its working substance and operates between two reservoirs which are at temperatures of 500C and 30C. The initial volume of the gas is 20 litres while the volume after isothermal expansion is 60 litres.
  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?
  22. RATIOS

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

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

    An engine does 15kJ of work while rejecting 37 kJ to the cold reservoir. What is the efficiency of the engine?
  25. 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
  26. 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
  27. 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
  28. 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
  29. science

    A toyota engine has an efficiency of 45% and produces 3010J of work. How much heat does the engine reject?
  30. 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?
  31. 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.
  32. 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
  33. 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
  34. 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]
  35. 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
  36. 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)
  37. 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).
  38. 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
  39. 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
  40. 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
  41. 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?
  42. physics

    Calculate the acceleration of a 2000-kg, single-engine airplane just before takeoff when the thrust of its engine is 500 N.
  43. 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?
  44. 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?
  45. 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
  46. 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)
  47. physics

    An automobile cooling system holds 16 L of water. The specific heat of water is 4186 J/kg⋅C∘.How much heat does it absorb if its temperature rises from 16∘C to 94∘C?
  48. 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
  49. 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
  50. 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
  51. physics - engine

    A car V8 has a bore of 4 in. and a stroke of 2.5 in., what is the engine size?
  52. Automotive Engine Types

    A 2.2 liter engine would have a displacement of approximately
  53. 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
  54. Physics (Heat Engines)

    21. A heat engine operates in a cycle between temperatures 700 K and 400 K. The heat input to the engine during each cycle is 2800 J. What is the maximum possible work done by the engine in each cycle? (A) 1200 J (B) 1600 J (C) 2100 J (D) 2800 J (E) 4400 J
  55. 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
  56. 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
  57. 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?
  58. 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 ?
  59. 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?
  60. Physical Science

    A heat engine exhauts 122.0 kal after taking 499.0 how much mechanical work was done by the engine?
  61. 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
  62. 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
  63. 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
  64. 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
  65. 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
  66. 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
  67. 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?
  68. 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.
  69. 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
  70. 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?
  71. 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
  72. 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
  73. 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
  74. 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
  75. 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
  76. 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
  77. 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
  78. 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
  79. math

    a new automobile depreciated 20% of its value after 1 year. if the automobile is priced at $18,000 after 1 year, what was its cost when it was new?
  80. Calculus Maxima/Minima

    An automobile traveling at the rate of 30 ft/sec is approaching an intersection. When the automobile is 120 ft. from the intersection, a truck, traveling at the rate of 40 ft/sec on a road at right angles with the automobile’s road crosses the
  81. 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
  82. 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).
  83. 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
  84. 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
  85. 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
  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
  87. 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
  88. 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
  89. 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"
  90. 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.
  91. 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
  92. 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
  93. Science ~CHECK MY WORK PLEASE~

    Felipe made a toy boat out of clay, but it kept sinking in water. He changed the boat's design by making it slightly wider than before. Why did Felipe's newly designed boat float on water? A. He decreased the density by increasing the volume. B. He
  94. 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)
  95. 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?
  96. 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)
  97. Calculus @ Henry

    I worked some on this earlier, and botched it a bit, so here goes again. A water tank is made by rotating f(x)=2^x-1 between [0,2] about the y-axis. The water tank is initially full, when a hole is opened at the bottom tip so that the water drains at a
  98. 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
  99. 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
  100. Analytical Chemistry

    Solute S has a partition coefficient of 4.3 between water (phase 1) and hexane (phase 2). (a) Calculate the concentration of S in hexane if [Swater] is 0.030 M (b) If the volume of water is 71.0 mL and the volume of hexane is 16.0 mL, find the quotient