1. physics

    How do i put them all in sig fig form??? What is the volume in cubic cm of a sphere with radius 2 cm? is it = 33.51032163829112 What is the area in m2 of a triangle with base 2.8 m and height of 10.4 m? is it = 14.56 A sphere has a volume of 106 cm3. What
  2. Gem=neral Chemistry 106

    A gas occupying a volume of 806 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?
  3. Pharmacy math

    Calculate the amount of IV fluid to be added to the volume control chamber Ordered:D5 0.33% NaCl at 66 mL/hr with Fortaz 720 mg every 8 hours to be infused over 40 minutes by volume control set On hand:Fortaz 1g/10 mL
  4. Math

    The edge of a cube was found to have a length of 50 cm with a possible error in measurement of 0.1 cm. Based on the measurement, you determine that the volume is 125,000 cm3. Use tangent line approximation to estimate the percentage error in volume.
  5. physics

    10 moles of a gas initially at temperature 300 K is compressed adiabatically from a volume of 2 cm3 to a volume of 325 cm3. To the nearest tenth of a joule what is the work done by the piston? (It is a monatomic ideal gas.)
  6. Physics

    Consider a glass with full of water of mass density ρ=1,000 kg/m3 and height h=20 cm. There's a circular hole in the bottom of the glass of radius r. The maximum pressure that pushes the water back into the hole is roughly (on the order of)
  7. Physics Help

    Consider a glass with full of water of mass density ρ=1,000 kg/m3 and height h=20 cm. There's a circular hole in the bottom of the glass of radius r. The maximum pressure that pushes the water back into the hole is roughly (on the order of)
  8. MATH

    An automobile travel 3 miles due north then 5 miles due north of reset
  9. Ap Biology

    We performed a lab that studied osmosis in potato cells. We put cylinders of potato into varying molar Sucrose solutions and after recording different types of data were able to find the osmotic and water potential of the sucrose solution and potato cells.
  10. Chemistry

    Please let me know how I am doing with the following three chemistry questions. 1.A sample of a gas in thermometer has a volume of 135mL at 11 degree celcius.Indicat what temperature(in k and degree celcius)would correspond to the foll.volume:
  11. Physics

    River Dam generates electricity with water taken from a depth of 110 m and with an average flow rate of 740 m3/s. a) Calculate the power in this flow. Note that the velocity and height of the water are not changed appreciably by the generators, and the
  12. chemistry 2

    The volume of blood in the body of a certain deep-sea diver is 6.00L. Blood cells make up 55% of the blood volume, and the remaining 45% is the aqueous solution called plasma. What is the maximum volume of nitrogen measured at 1.00 atm and 37 degree
  13. CHEM help needed

    how do i find the Volume of Atoms within Unit Cell in(Å^3)? I think it has something to do with avogadros number but i do not know exactly...so far i know that the volume of the unit cell is 47.045881 Å^3. PLEASE HELP
  14. Math

    A rectangular solid has a volume of 40 cubic centimeters. If the dimensions are all reduced to 1/2 their original size, what will be the new volume of the rectangular solid?
  15. Chemistry

    A sample of gas at 47°C and 1.03 atm occupies a volume of 2.20L. What volume would this gas occupy at 107°C and 0.789 atm?
  16. 5th grade science

    What volume of helium would be in a baloon the size of a soft drink? The same volume that the soft drink occupies.
  17. geometry

    45. Find the similarity ratio of a cube with a volume 512 m3 to a cube with volume 3,375 m3. (1 point) 8 : 15 64 : 225 15 : 8 225 : 64
  18. chemistry

    A sample of oxygen at room temperature occupies a volume of 500. L at 1.75 atm. What would be the volume of this gas at 2.50 atm at the same temperature?
  19. Chem

    A gas at a pressure of 1 atm, a volume of 1 , and a temperature of 25 C. What would happen to the pressure if the volume were reduced to 0.5 and the temperature increased to 250 C ?
  20. Math

    if the length of a rectangular pyramid is made seven times longer, how many times the volume of the original figure is the volume of the new figure?
  21. physics

    A cube with a mass of 40 g is made from a metal with a density of 6 g/cm3. What is the volume of the cube and the length of each edge? ----volume cm^3 -----length cm^3
  22. chemistry

    A gas at a temperature of 600C and 1ATM has a volume of 120 L. So what is the volume of the gas at a temperature of 400C at a constant pressure ?
  23. physics

    The volume of a gas is 2.6 L and its temperature is 338 K . If the volume of the container were changed to 3.2 L, what temperature would the gas be? (All other values remain constant.)
  24. Chemistry

    The volume of a sphere is given by V=(4/3)3.14r^3, where r is the radius. Compute the volume of a sphere with a radius of 329pm. state your answer in units of m^3.
  25. chemistry

    A gas has a volume of 50.0 cm3 at a temperature of -73°C. What volume would the gas occupy at a temperature of -123°C if the pressure stays constant?
  26. Chemistry

    A gas has a volume of 50.0 cm3 at a temperature of -73°C. What volume would the gas occupy at a temperature of -123°C if the pressure stays constant
  27. chemistry

    In a titration, 25.0 mL of KHP is titrated to the equivalence point with NaOH. The final solution volume is 45.5 mL. What was the volume of NaOH used in the titration? 25.0 mL 20.5 mL 70.5 mL 45.5 mL
  28. Chemistry

    A gas sample has an initial volume of 4.5 liters at a pressure of 731 mmHg. If the volume is increased to 8.9 liters, what is the pressure?
  29. Physics

    A container of gas is at a pressure of 1.3x10^5 Pa and a volume of 6.0m^3. How much work is done by the gas if it expands at constant pressure to twice its initial volume? Please help ;_;
  30. geometry

    two smaller prisms have heights 2' and 10'. If the volume of the smaller prism is 32 cubic feet, find the volume of the larger prism.
  31. chemistry

    On passing 2 litres of a mixture of CO and CO2 over red hot charcoal, the volume becomes 2.5 litres. The volume fraction of Co in the mixture is
  32. chemistry

    a sample of gas has a volume of 6.00L at 20.0 degrees celcius . what will be its volume at 40.0 degrees celcius pressure remaining constant
  33. 6 grade Math

    241.5 grams of gold has a volume of 12.5 cubic cm. what is the volume of 193.2 grams of gold How do you set this problem up?
  34. chemistry

    a sample of hydrogen occupies a volume of 950 mL at -15.3 degrees celcius. if the temperature increased to 30.0 degrees celcius, what would be the new volume?
  35. algebra

    Since the purpose of an ice cube is to keep a drink cold, is it better for an ice cube to have a high volume or a low volume? Why? plz help f !!!
  36. chemistry

    A gas at a temperature of 600C and 1ATM has a volume of 120 L. So what is the volume of the gas at a temperature of 400C at a constant pressure ?
  37. geometry

    A rectangular prism has a volume of 250 cubic cm.What would the volume be if one dimension stayed the same, a second dimension was three times as long, and the third was twice as long?
  38. chemistry HELP plz!

    What value should theoretically be obtained for the intercept on a graph of mass vs volume? HINT: The intercept corresponds to zero mass and zero volume.
  39. math

    smallest golf ball has a volume of 2.48 cubic inches. If the diameter is increased bt a factor of 1.1 what will the volume of the golf ball be?
  40. science

    1. The surface tension in a cup of water is caused by _____. (1 point)attractive forces between the water and its container attractive forces between water molecules adhesive forces between water molecules adhesive forces between the water and its
  41. Definition

    In which sentence is the word SPUTTERS used correctly? a.The engine SPUTTERS when it is started in the cold. b.The ball SPUTTERS as it bounces across the court. c.That tree SPUTTERS when it drops its leaves. d.The wave SPUTTERS as it breaks over the beach
  42. English

    If there is much running water from the faucet, the water becomes lukewarm. So you should turn down the faucet a little so that it has little running water, and then the water will become more warm or hot. Then the baby in the bath tub will not feel cold.
  43. Chemistry;HELP

    Volume Problems Answer the following questions. Scan and upload your questions and answers to your student section labeled Volume Volume Problems. Identify the following chemical equations by type. 1. If an electric discharge produces 500 cm3 of ozone
  44. Calculus

    The base of a solid in the region bounded by the graphs of y = e^-x, y = 0, and x = 0, and x = 1. Cross sections of the solid perpendicular to the x-axis are semicircles. What is the volume, in cubic units, of the solid? Answers: 1)(pi/16)e^2
  45. CALCULUS

    The base of S is a circular disk with radius 3r. Parallel cross-sections perpendicular to the base are isosceles triangles with height 8h and unequal side in the base. a. set up an interval for volume of S b. by interpreting the intergal as an area, find
  46. Algebra

    James, Karen, and Lou are hiking. Lou forgot to bring any water. James brought 2 gallons of water and Karen brought 1 and 3/4 gallons of water. The three of them agree to divide all the water equally among them. Lou gives $2 for the water he receives,
  47. 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
  48. Chem

    During which stroke of a four-stroke internal combustion engine is the system's temperature raised because work is done to the gases? A. Compression stroke B. Power stroke C. Exhaust stroke D. Intake stroke
  49. physics

    a pump fills a tank of capacity 300 m^3 in 5 hours.the tank is situated at a height of 20 m.if the efficiency of the tank is 65%. then calculate the power of the engine which has driven the pump.
  50. physics

    An airplane of mass 1.30 104 kg is moving at 52.0 m/s. The pilot then increases the engine's thrust to 7.00 104 N. The resistive force exerted by air on the airplane has a magnitude of 3.00 104 N.
  51. math

    if possible, change each comparison of concentrate to water into a ratio. If not, explain why. a. the mix is 60% concentrate. b. the fraction of the mix that is water is 3/5 c. the difference between the amount of concentrate and water is 4 cups
  52. Physics

    Water is flowing continuously from a tap having an internal diameter 8×10^-3 m. The water velocity as it leaves the tap is 0.4 m/s. The diameter of the water stream at a distance 2×10^-1 m below the tap is close to: A) 5.0×10^-3m B) 7.5×10^-3m C)
  53. AP Chemistry

    2 Questions (Multi-choice and T/F, though not sure if they're right, and these 2 questions have no correspondence to each other) 1.) a.) Consider the following system at equilibrium where Kc = 1.20E-2 and H° = 87.9 kJ/mol at 500 K. PCl5 (g) <=> PCl3
  54. physics

    Proper design of automobile braking systems must account for heat buildup under heavy breaking. Calculate the thermal energy dissipated from brakes in a 1500 kg car that descends a 17° hill. The car begins braking when its speed is 95 km/h and slows to a
  55. Chemistry

    Hello, I just finished an experiment in class dealing with the separation of a sand and salt mixture through the means of filtration (with filter paper and water) and evaporation (using a hotplate). As I was calculating the percent recovery, I yielded
  56. Physics

    A cylindrical container 1.5m tall contains mercury to a certain depth, d. The rest of the cylinder is filled with water. If the pressure at the bottom of the cylinder is two atmospheres, what is the depth d? I used this equation: 2atm = 1atm + (density of
  57. PHYS101

    oil is added to the right hand arm of a U-tube containing water.The oil floats above the water to a height of h=10cm.The top of the oil+water column is a height d=2cm above the top of the water column in the other arm .Calculate the oil density?
  58. physics

    A fire hose ejects a stream of water at an angle of 37.9 ° above the horizontal. The water leaves the nozzle with a speed of 25.5 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit the
  59. Chemistry

    Given that ΔH (fusion) of water is 6025 J/mol, Cp,m(ice) = 37.7 J K–1 mol–1, and Cp,m(water,liquid) = 75.3 J K–1 mol–1, calculate ΔG (in J) for the freezing of 89 moles of water at 1 atm pressure and the constant temperature T = 14.4 °C.
  60. math,eng,phy,chem,bio,geography,economics

    in an experiment of oxgen to hydrogen in water molecule. 9g of iron were heated in a current of hydrogen,6.5g of iron and 2.8g of water were formed using this data. determine the proportion by mass of oxygen to hydrogen in water
  61. Math - Calculus

    Water is flowing in a cylindrical pipe of radius 1 inch. Because water is viscous and sticks to the pipe, the rate of flow varies with distance from the center. The speed of the water at distance r inches from the center is 10(1-(r^2)) per second. What is
  62. Physics

    At a nuclear power plant, water at 6degress Celius from a nearby lake is used in a heat exchange to condense spent steam at a temperature of 115 degees C to water at 80 degrees C. If the cooling water returns to the lake at a temperature of 18 degrees C,
  63. 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
  64. 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?
  65. Physics

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

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

    The efficiency e of a gasoline engine as a function of its compression ratio r is given by e =1− r1−γ , where γ is a constant. Find γ for e = 0.55 and r = 7.5.
  68. Physics

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

    I have two questions and I have answers for them and I don't know if there right or not. The ones that have stars by the answers is the answers I picked. 1. Complete this sentence. If volume remains the same while the mass of a substance ________, the
  70. 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 followed the steps given by you but not getting the answer (0degree celsius) ice at -20 to ice at 0
  71. Precalculus

    "An aquarium with length x, width x-10, and height x-5 holds about 750 cubic feet of water. Find all real solutions of the equation (I wrote it) 750 = x(x-10)(x-5)." I got the volume equation correct, right? I've tried dividing the factors of -750 by the
  72. science

    Given that 25ml of a solution contains 159g of sodium carbonate per dm3 was required for complete neutralization of 4.725g of monobasic acid at s.t.p. (Na=23, C=12, O=16, molar gas volume at s.t.p=22.4dm3) . find the relative molecular mass of the acid and
  73. physics

    A 1.1 pebble is stuck in a tread of a 0.85 diameter automobile tire, held in place by static friction that can be at most 3.9 . The car starts from rest and gradually accelerates on a straight road.How fast is the car moving when the pebble flies out of
  74. Preschool teacher needs your help... thx soo much

    Pre-school teacher NEEDS YOUR HELP!!! thanks sooo much? I am a preschool teacher and the theme for this week is "Land/Air/and water".... My kids are 3 and 4.... what lesson ideas or craft ideas do u have in mind for this theme... I wanted to do a fun
  75. Calculus - Rates of Change

    A water tank has a shape of an inverted cone with a base radius of 2m and a height of 4 m. If water is being pumped into the tank at a rate of 2m3/min, then find the rate at which the water level is rising when the water is 3m deep. Attempted solution: V=
  76. Chemistry

    Please help! A drop of oil (volume 0.05 cm3) is released from a medicine dropper on to the calm surface of a pond where it spreads out to cover an area of 40 cm2. Assume that the oil film has a uniform thickness equal to the diameter of an oil molecule.
  77. Chemistry

    If a balloon has the volume of 5.00 L at 25 C what is its volume when you put the balloon in a freezer at -12 C?
  78. algebra

    the volume of a cylindrical tank is V(h)= pi(h^3+6h^2+9h) The volume of a tank can be modeled by V(L)= L(L-3.2)(L+6.8)
  79. chem

    If 10.0 mol of CO occupies a volume of 20.0 L what volume would 4.0 mol of CO occupy?
  80. Chemistry

    How do you find the -Volume of O2 at STP -Volume of 1 mole of O2 at STP
  81. algebra

    The volume of a sphere is given by V(r) = 4/3*pi*r3. Find the volume of the sphere when the diameter is 8 m.
  82. MATH

    A sphere has five times the volume of a right cone that has a radius of 4.6 cm and a height of 7.7 cm. Determine the radius of the sphere to the tenth of a centimetre. This question is multiple choice and these were the options: A. 2.2cm B. 3.4cm C. 5.9cm
  83. Chemistry

    Hi there - My labs and lectures aren't in synch at the moment so we are now doing a prelab that is asking for info I haven't been taught yet uggg... The prelab question I'm having trouble with is as follows: What is the volume at STP for 0.415 g of argon
  84. Chemistry

    hen excess Ag metal is added to 0.246 L of 1.290 M Fe3+(aq) at 298K, the following equilibrium is established: Ag+(aq) + Fe2+(aq) Ag(s) + Fe3+(aq) (1) If the equilibrium concentration of Ag+ is 0.504 M, what is the value of K? K = (2) Using the value of K
  85. Chemistry

    We are given that the solubility product of platinum (II) sulfide is 9.9x10^-74 We are told to write a balanced equation for dissolving platinum (II) sulfide. I put : PtS(S) <> Pt^2+(aq) + S^2-(aq) and then we had to write the Ksp expression:
  86. chemistr

    10g of nacl were added to 10ml of water. he resulting solution was diluted to be a final volume of 250ml. Calculate the molarity of the solution. My calculation 10g/58g/mol = 0.173M 0.173M/025L =0.689M Given the density of the solution is 0.9864g/ml.
  87. chemistry

    What is the general form of a common automobile battery? How many electrodes does a car battery use? Does it use an acidic aqueous electrolyte solution? Is the battery rechargeable? Is the battery voltaic or electrolytic when discharging? Is the battery
  88. physics

    A solid right circular cone of uniform mass density is initially at rest above a body of water so that its vertex is just touching the waters surface with its axis of symmetry along the vertical. Now, the cone falls into the water, and has zero speed at
  89. physics

    A fight aircraft needs to emergency land due to engine breakdown. The pilot can control the approach velocity to 250 km/hr when the aircraft tires touch the ground. The best deceleration of its braking system is 10 m/s2 . How long will the runway is
  90. Physics

    A car (m = 670.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 35.0 m. Find the average power the engine must deliver to reach a speed of 23.9 m/s at the top of the hill in 22.7 s(NEGLECT frictional losses:
  91. physics

    A car (m = 770.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 45.0 m. Find the average power the engine must deliver to reach a speed of 20.9 m/s at the top of the hill in 19.5 s(NEGLECT frictional losses:
  92. science

    3. Would you use a physical model or a conceptual model to describe the following: brain, mind, solar system, birth of universe, stranger, best friend, gold coin, dollar bill, car engine, virus, spread of sexually transmitted disease?
  93. physics

    A car (m = 690.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 49.0 m. Find the average power the engine must deliver to reach a speed of 24.9 m/s at the top of the hill in 15.7 s(NEGLECT frictional losses:
  94. Physics

    A car (m = 610.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 49.0 m. Find the average power the engine must deliver to reach a speed of 24.7 m/s at the top of the hill in 20.5 s(NEGLECT frictional losses:
  95. physics

    A car (m = 640.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 43.0 m. Find the average power the engine must deliver to reach a speed of 19.9 m/s at the top of the hill in 23.9 s(NEGLECT frictional losses:
  96. English

    How much water do you drink every day? 1. I drink two liters of water per day. 2. I drink 1.5 liters of water a day. 3. I drink ten liters of water every day. 4. I drink a ten-liter carton of water every day. 5. I drink a 5-liter pack of water every day.
  97. Algebra

    A gardener combines x fluid ounces of a 20% liquid fertilizer and 80% water mix with y fluid ounces of a 5% liquid fertilizer and 95% water mix to make 30 fluid ounces of a 10% liquid fertilizer and 90% water mix. a. Write a system of linear equations that
  98. calculus

    A conical drinking cup is made from a circular piece of paper of radius R inches by cutting out a sector and joining the edges CA and CB. Find the radius, height and volume of the cone of greatest volume that can be made this way.
  99. Geometry

    I would greatly appreciate any help I can get with this problem. I need to find the volume of a right triangular prism. The sides of the triangles measure 2cm and the length of the prism is 10cm. I found the surface area to be 64sq cm...is this correct?
  100. Chemistry

    A person accidentally swallows a drop of liquid oxygen, O2 (l), which has a density of 1.149 g/mL. Assuming the drop has a volume of 0.050 mL, what volume (mL) of gas will be produced in the person’s stomach at body temperature (37 °C) and a pressure of