1. physics

    A sample of monatomic gas (£^ = 5/3) is expanded adiabatically from an initial temperature, volume, and pressure of 230. ¢XC, 6.00 litres, and 5.00 kPa, respectively, to a final volume of 7.00 litres. (a) What is the final pressure of the gas? (b) How

    asked by sarah on April 30, 2010
  2. PHYSIC 220

    An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 750 m, horizontal distance 20.0 km, and 25.0° south of west. The second aircraft is at altitude 1050 m, horizontal distance 17.0 km, and 17.0° west of south.

    asked by HELP PLZ on February 12, 2016
  3. Physics

    An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 750 m, horizontal distance 20.0 km, and 25.0° south of west. The second aircraft is at altitude 1050 m, horizontal distance 17.0 km, and 17.0° west of south.

    asked by Anonymous on February 12, 2016
  4. Math (Finance)

    The company used $45,000 in cash to purchase land on the west side of Hatu Lake. a. List the accounts impacted by the transaction. b. For each account, indicate whether the transaction increased or decreased the account. c. For each account, indicate how

    asked by Brian on September 11, 2007
  5. Math

    An n-sided polygon has interior angles of which 4 of them are of sizes 125,220,40 and 295 degrees . The remaining interior angles are of sizes 20 degrees each. Find the value of n, My working: let the number of sides for the polygon be n and the remaining

    asked by Nurul on December 5, 2014
  6. Physical science

    Two rectangular blocks are stacked on a table. The upper block has a mass of m2 and the lower mass is m1 > m2. The coefficient of kinetic friction between the lower block and the table is ųk. The coefficient of static friction between the two blocks is

    asked by Jessica on March 8, 2015
  7. physics

    52.(52G) A 110-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 350 N. For the first 15 m the floor is frictionless, and for the next 15 m the coefficient of friction is 0.30. What is the final speed of the crate?

    asked by Martha on March 23, 2014
  8. math

    A chemical distillation tower, 110 m high is supported by cables of length L that reach from the top of the column to the ground at a distance D from the base of the tower. If D is 1/3 the length of a cable, find L and D.

    asked by david on September 13, 2012
  9. Chemistry

    How many joules ar required to heat a frozen can of juice (360 grams) from -5 degrees C (the temp of an overcooled refrigerator) to 110 degrees C (the highest practical temp within a microwave oven)?

    asked by Tom on January 5, 2013
  10. physics

    In college softball, the distance from the pitcher's mound to the batter is 43 feet.If the ball leaves the bat at 110 mph, how much time elapses between the hit and the ball reaching the pitcher?

    asked by Sasha on February 19, 2011
  11. Math

    Two ships leave the same port at the same time. One ship sails on a course of 110 degree at 32 mi/h. The other sails on a course of 230 degree at 40 mi/h. Find the distance between them after 2 hours. Express your answer to the nearest mile.

    asked by Jane on March 5, 2018
  12. Physical chemistry

    Estimate the vapor pressure of sea water at 20C given that the vapor pressure of pure water is 2.338 kPa at that temperature and the solute is largely Na+ and Cl- ions, each present in about .50 mol/dm^3. I'm pretty sure the formula to use is pj=xjpj'.

    asked by Melissa on September 30, 2010
  13. physics

    A cannonball is shot from a cannon on a cliff at a height of 18.9 m at a ship on the ocean. The cannonball is shot with an initial velocity of 15.1 m/s at an angle of 24.7 degrees above the horizontal. #1- What is the total maximum height of the cannonball

    asked by veronica on November 24, 2009
  14. Physics

    Suppose 2100 J of heat are added to 3.3 mol of argon gas at a constant pressure of 120 kPa. (Assume that the argon can be treated as an ideal monatomic gas.) A) Find the change in internal energy. B) Find the change in temperature for this gas. C)Calculate

    asked by sarah on April 17, 2015
  15. Physic 220

    An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 750 m, horizontal distance 20.0 km, and 25.0° south of west. The second aircraft is at altitude 1050 m, horizontal distance 17.0 km, and 17.0° west of south.

    asked by SFSU on February 12, 2016
  16. math

    A bag has balls of four colours - red,blue,green and pink.Half the total number of balls are pink. One-fourth of the number of green balls equals one-third of the numher of blue balls. The number of pink balls is 4 less than twice the total number of green

    asked by Suzanne on November 13, 2014
  17. chemistry

    A compressed gas cylinder of H2 containing 25 l at 200,000 kPa of pressure is emptied due a leak in a gas chromatography laboratory, with the following dimensions: 5 m long, 4 meters wide and 2.5 m height. Calculate the % oxygen and hydrogen in the

    asked by Uwaoma on June 27, 2012
  18. ap physics

    A beam resting on two pivots has a length of L = 6.00 m and mass M = 87.0 kg. The pivot under the left end exerts a normal force n1 on the beam, and the second pivot placed a distance ℓ = 4.00 m from the left end exerts a normal force n2. A woman of mass

    asked by amar on March 8, 2015
  19. Physical Chemistry

    A mixture of ethane and ethene occupied 35.5 L at 1.000 bar and 405 K. This mixture reacted completely with 110.3 g of O2 to produce CO2 and H2O. What was the composition of the original mixture? Assume ideal gas behavior

    asked by Dia B on September 12, 2012
  20. Chemistry

    A mixture of ethane and ethene occupied 35.5 L at 1.000 bar and 405 K. This mixture reacted completely with 110.3 g of O2 to produce CO2 and H2O. What was the composition of the original mixture? Assume ideal gas behavior

    asked by Joseph on September 21, 2015
  21. math

    If x represents the total number of bags a person checks and each person checks more than two bags, the equation below can be used to determine C, the total fee for all the bags. 20 + 25 + 50(x - 2) = C Arianna paid a total of $145 to check all her bags on

    asked by Kelvin on July 12, 2011
  22. MICROECONOMICS

    Question One: Assume Susan has $80 to spend on candies and chips each week and both goods must be purchased whole units (no fraction). The price of candies is $8 each and chips is $20. CANDIES CHIPS # of cans Total Utility (TU) Marginal Utility (MU) MU/P

    asked by KERRY on March 8, 2016
  23. Chemistry

    I'm confused on this problem A gaseous mixture inside a rigid steel vessel contains 75% CO2 and 25% H2O by volume at 175 degrees C and 225 kPa. The mixture is then cooled to 0 degrees C, thereby condensing the water vapor. What is the pressure of the CO2

    asked by Angel on November 27, 2011
  24. English

    I urgently need you to chech the question and the answer to it. I considered your corrections. 1) Explain the meaning of the word compromise applied to the Victorian way of life. (Explain how the word compromise applied to the Victorian way of life). Then

    asked by Henry2 on June 26, 2011
  25. Physics... Please help me

    A shell is shot with an inital velocity of 20m/s at an angle 60 degrees with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment whose speed is immediately after the explosion zero falls

    asked by Brian on January 30, 2007
  26. chem

    a sealed cylinder of a gas contains nitrogen gas at 1.00*10^3 kPa pressure and a temperature of 20C. They cylinder is left in the sun and the temperature of the gas increases to 50C. What is the new pressure in the cylinder?

    asked by Skye on January 24, 2012
  27. Chemistry

    At STP potassium chlorate (KClO3) decomposes to produce solid potassium chloride (KCL) and oxygen gas (O2) according to the balanced chemical equation: 2KClO3(s)->2KCl(s)+3O2(g) What volume of oxygen gas, measured at 40 degrees celsius and 85.4 kPa, will

    asked by Abby on April 11, 2016
  28. Statistics

    I have a problem I need some help on. I answered some. For many years the numbers of accidents per week at a hazardous intersection have been studied. The number of accidents per week varies with mean 2.2 and standard deveiation 1.4. 1. Could the exact

    asked by Kayse on August 4, 2007
  29. math

    marcy has a total of 100 dimes and quarters. if the total value of the coins is $14.05, how many quarters does she have? You need two equations to substitute into each other. You need one for the total number of coins, and one for the amount. d=# of dimes

    asked by help me on April 26, 2007
  30. geometry

    An aeroplane when 6000 m high passes vertically above another plane at an instant when their angles of elevation at the same observing point are 60° and 45° respectively. How many meters higher is the one than the other?

    asked by amar on November 15, 2011
  31. grade 11 math

    Determine two angles between 0 and 360 that have a cosecant of -8. I don't understand what steps I should take in order to solve the question. Im not looking for the answer just a formula to do questions like this.

    asked by Phillip on May 15, 2017
  32. Math

    An aeroplane starts from P and flies due west on the same latitude covering a distance of 1232KM to point T. Calculate the difference in angles between P and T

    asked by Yas on April 29, 2017
  33. Trig

    Last question! Just seeing why I’m getting these wrong In a right triangle with a leg of 4 and a hypotenuse of 8, find the measure of all angles. Correct answer: 30deg, 60deg, 90deg How?

    asked by Kay on February 26, 2018
  34. geometry

    I got this problem wrong on a test and i want to know how to fix it. In triangle ABC, angle A is 20 degrees and side AC is 7.89 units, find the other sides and angles

    asked by peter on March 29, 2011
  35. Geometry

    The measures of 6 of the interior angles of a heptagon are: 120°, 150°, 135°, 170°, 90°, and 125°. What is the measure of the largest exterior angle? 90° 80° 75° 85°

    asked by dana on January 23, 2012
  36. Geometry

    If the measures of the angles of a triangle are in the ratio 1:3:5 , what is the measure in degrees of the smallest angle ? a. 10 b. 20 c. 60 d. 180 thanks , and would be greatly appreciated if answered ASAP .

    asked by Chyna on February 28, 2012
  37. Math

    I don't know if anybody has done lesson five polygons and angles but I need help solving some problems and it would be easier if they could pull it up on there screen and help me solve because there are graphs....so if you do wich you probably dont i could

    asked by hedrtfghyujiko,l;. on January 25, 2019
  38. Trigonometry

    Law of Sines sigma=27 deg 30' c= 52.8 a=28.1 Please show two solutions (beta1, beta2,...) due to acute and obtuse angles. Thank you so much for helping!

    asked by Anonymous on January 24, 2015
  39. college physics

    Three identical charges (q = +5.0mC) are along a circle with radius of 2.0m at angles of 30, 150, and 270 degrees. What is the the resultant electric field at the center?

    asked by Cristina on July 31, 2010
  40. Geometry

    The measures of 6 of the interior angles of a heptagon are: 120°, 150°, 135°, 170°, 90°, and 125°. What is the measure of the largest exterior angle? 90° 80° 75° 85°

    asked by dana on January 23, 2012
  41. geometry

    Find the measure of the vertex angle of an isosceles triangle if either of the exterior angles formed by extending the base measures of 112

    asked by tina on December 1, 2011
  42. geometry

    A parallelogram ABCD has lengths of sides and angles given below. Find the length of the diagonals AC and BD. (Round your answers to two decimal places.) AB = DC = 6 and AD = BC = 5, angleA = 40°

    asked by deanna on November 9, 2011
  43. Trigonometry

    A=30 degrees, a=9 and b=8. Find the missing sides/angles. I did cos39=x/8 and reduced that to 8cos39=x. I got 6.92. But that's not a valid answer, so I can't go from there. What did I do wrong? Can you show me how to get the other answers as well, please?

    asked by Janie on January 24, 2010
  44. math

    A parallelogram ABCD has lengths of sides and angles given below. Find the length of the diagonals AC and BD. (Round your answers to two decimal places.) AB = DC = 6 and AD = BC = 5, angleA = 40°

    asked by deanna on November 9, 2011
  45. trig

    find the next two positive and negative angles coterminal with the quadrantal angle. 90 degrees. would the answer be..... would it be 450, 810?????? and -630, -270 ????

    asked by Alison on August 29, 2011
  46. Geometru

    The measures of 6 of the interior angles of a heptagon are: 120°, 150°, 135°, 170°, 90°, and 125°. What is the measure of the largest exterior angle?

    asked by Izabelle on June 12, 2013
  47. pre-calc HELP PLEASE

    solve using identities for all angles (dont use multiple angle method)show work please cuz i am so confused. 2sin2x-3sinx=0

    asked by Kimberly on April 24, 2012
  48. physics

    A space station, in the form of a wheel 110 m in diameter, rotates to provide an "artificial gravity" of 3.00 m/s2 for persons who walk around on the inner wall of the outer rim. Find the rate of rotation of the wheel (in revolutions per minute) that will

    asked by laura on July 10, 2010
  49. math

    The estimated monthly profit (in dollars) realizable by Cannon Precision Instruments for manufacturing and selling x units of its model M1 digital camera is as follows. P(x) = -0.06 x^2 + 480 x - 110,000 To maximize its profits, how many cameras should

    asked by mody on April 28, 2017
  50. Algebra

    At a price of $10 the local pizza sells 800 pizzas. At a price of $8 the pizza place sells 1000 pizzas. When the quantity equals 100 pizzas, total costs equaled $1300. When quantity equaled 200 pizzas, total costs equaled $ 2200. When quantity equaled 300

    asked by Rajeev on October 16, 2011
  51. physics

    A 44 m diameter wheel accelerates uniformly about its center from 110 rpm to 320 rpm in 3.9 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.0 s after it has started accelerating.

    asked by Eden on October 31, 2010
  52. Physics

    A 44 m diameter wheel accelerates uniformly about its center from 110 rpm to 320 rpm in 3.9 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.0 s after it has started accelerating.

    asked by Corey on October 31, 2010
  53. physics

    A 44 m diameter wheel accelerates uniformly about its center from 110 rpm to 320 rpm in 3.9 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.0 s after it has started accelerating.

    asked by Eden on October 30, 2010
  54. chemistry

    A mixture of 3.00 volumes of H2 and 1.00 volume of N2 reacts at 344 C to form ammonia. The equilibrium mixture at 110.0 atm contains 47.00 % NH3 by volume. Calculate Kp for the reaction, assuming that the gases behave ideally.

    asked by Anonymous on March 8, 2015
  55. physics

    A jet plane lands with a speed of 110 m/s and can decelerate uniformly at a maximum rate of 4.1 m/s2 as it comes to rest. Can this plane land at an airport where the runway is 0.80 km long? Answer this by calculating. Answer in units of km

    asked by christian on September 22, 2011
  56. Physcis

    A microwave runs off a 110. V circuit and draws 7.00 A of current. How much water would be required to run the microwave for 10.0 minutes if it is powered by a 10.0­m high water wheel? I really don't this question nor know what exactly i'm suppose to be

    asked by john jhon on April 25, 2016
  57. Chemistry

    Write the balanced equation for (aq) Pb(ClO3)2 and (aq) NaI. Include phases. What mass of precipitate will form if 1.50 L of concentrated Pb(ClO3)2 is mixed with .250 L of .110 M NaI? Assume the reaction goes to completion.

    asked by Chelsea on October 4, 2013
  58. physics

    A 44 m diameter wheel accelerates uniformly about its center from 110 rpm to 320 rpm in 3.9 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.0 s after it has started accelerating.

    asked by Corey on October 31, 2010
  59. Physics

    A jet plane lands with a speed of 110 m/s and can decelerate uniformly at a maximum rate of 4.4 m/s^2 as it comes to rest. Can this plane land at an airport where the runway is 0.84 km long? Answer this by calculating. Answer in units of k

    asked by Avril on October 16, 2011
  60. economics

    Consider a market in which consumption of the good being traded generates a positive externality. There are 100 identical consumers, each with a utility function given by 1/2 √q+m+√G, where G denotes the total level of consumption in the market. The

    asked by hamna on March 23, 2014
  61. CALCULUS ECONOMICS

    Consider a market in which consumption of the good being traded generates a positive externality. There are 100 identical consumers, each with a utility function given by (1/2)*(q^(1/2))+m +(G^(1/2)) where G denotes the total level of consumption in the

    asked by Jenney on March 13, 2014
  62. physics

    Two blocks of 10kg and 4 kg ,respectively, are in contact with each other on frictionless,horizontal plane.They are moving at 20 metre per second.A 28N force is now applied horizontally to the opposite direction.Draw separate force diagrams for the two

    asked by mothusi on February 14, 2018
  63. Maths

    Find the equation of the normal to the curve y = 3x^2 - 5x that is perpendicular to the line y = x + 4.

    asked by Annie on October 23, 2009
  64. Biology - Genetics

    What would be the molar concentration of DNA in a normal human cell?

    asked by Aditi on November 10, 2017
  65. maths

    Find the equation of the normal to the curve y=2x^2+3x+4 which is perpendicular to the line y=7x-5

    asked by Adam on October 23, 2010
  66. physics

    where are the incident and refracted rays located in relation to the normal

    asked by siva on December 5, 2013
  67. Biology

    Is it possible for a person to have a normal vital capacity but an abnormal FEV1.0?

    asked by JYD on April 18, 2007
  68. Trigonometry

    In a right triangle normal is 40cm,hypotenuse is 44.Find the value of base?

    asked by Anonymous on November 30, 2015
  69. stats

    how to find the are for a standard normal curve that cuts off the upper 1.1%

    asked by Anonymous on November 17, 2013
  70. Calculus

    Find the tangential and normal components of the acceleration vector. r(t) = t i + t2 j + 4t k aT= aN=

    asked by Anon on September 12, 2016
  71. Physics

    When is your weight normal, higher, or lower while moving up and down in an elevator?

    asked by Beth on November 1, 2007
  72. Biology

    What are the different types of microscopes? Does a normal light microscope allow you to see DNA?

    asked by Will on April 7, 2008
  73. science

    what normal kitchen ingredient will extract water from a grape

    asked by Michael on February 28, 2008
  74. Statistics

    What is the lowest z-value for the highest 2% of observations on the standard normal distribution?

    asked by Alisha on April 22, 2015
  75. spanish

    using preterite describe a normal morning routine until i get to class

    asked by marlene on December 6, 2012
  76. statistics

    Find the z-score for the standard normal distribution where: P(z< -a) = 0.2451

    asked by Huffette on November 30, 2012
  77. Calculus

    The normal (perpendicular) line to the curve y=sqrt(8-x^2) at (-2,2) has slope A. -2 B. 1/2 C. -1/2 D. 1 E. -1 I got A

    asked by Sarah on March 14, 2015
  78. math

    If a normal studentblinks 25 times per minute how old yould you be your next birthday?

    asked by mike on December 6, 2010
  79. Stats

    If X is a normal random variable with mean 60, and a standard deviation of 2, find: A: P (X63) C: P(57

    asked by April on March 26, 2009
  80. calculus

    DETERMINE THE EQUATION OF THE NORMAL LINE TO THE CURVE Y=2^(1/X) AT THE POINT WHERE X=1.

    asked by Aliza on April 20, 2010
  81. Statistics

    find z such that 97.5% of the standard normal curve lies to the left of z

    asked by John on June 14, 2010
  82. statistics

    If the random variable z is the standard normal score and a > 0, is it true that P(z > -a) = P(z < a)? Why or why not?

    asked by tina on November 26, 2011
  83. Statistics

    find z such that 5.2% of the standard normal curve lies to the left of z

    asked by John on June 14, 2010
  84. statistics

    In a standard Normal model, what value of z cut off the region described as the lowest 1.5%?

    asked by Jamie on September 26, 2010
  85. stats

    (a) Suppose n = 26 and p = 0.30. Can we approximate p̂ by a normal distribution? Why? (Use 2 decimal places.)

    asked by neyrod on October 6, 2014
  86. science

    what makes the moon shine? what is the normal temprature of ourbody?

    asked by mansi on May 9, 2008
  87. Math

    Find the equation of normal to the curve 3x^2 - y^2 =8 which is parallel to the line x + 3y =4.

    asked by Chockalingam on June 22, 2013
  88. 12th grade calculus

    find the lines that are (a) tangent and (b) normal to the curve at the given point x^2 + xy - y^2 = 1

    asked by dt on October 19, 2008
  89. Statistics

    how do I find z such it lies 5.3% to the left of the standard normal curve?

    asked by Donzella Washington on December 2, 2018
  90. Calc

    The coordinates of the point where the normal to the curve y= 1/3 x^3 + 1/2 x^2 + x at x=1 intersects the y-axis are what?

    asked by Anonymous on January 3, 2012
  91. Statistics

    Find the 35th percentile of the normal distribution with mean 270 and SD 25.

    asked by James on March 7, 2013
  92. Math

    Find the area under the normal distribution curve to the left of z = –1.50.

    asked by Shelagh on July 12, 2014
  93. statistics

    Find z such that 7.1% of the standard normal curve lies to the left of z ?

    asked by leia on March 19, 2014
  94. Math Statistics

    Are there any advantages or disadvantages to using data that follow a normal distribution?

    asked by Misty on October 19, 2012
  95. Calculus

    The slope of the line normal to the curve e^x − x^3 + y^2 =10 at the point (0, 3) is ____

    asked by Pax on May 14, 2015
  96. Statistics

    What is the lowest z-value for the highest 2% of observations on the standard normal distribution?

    asked by Anonymous on April 22, 2015
  97. calculus

    find an equation for a line that is normal to the graph y=e^x*x and goes through the origin.

    asked by sylvia on December 1, 2008
  98. lıfe scıences

    Gıve two reasons why sodıum ıs ımportant ın normal dıet.

    asked by z&#305;mkh&#305;tha on June 5, 2014
  99. Human physiology

    find effective osmotic pressure of normal saline.

    asked by raj on September 25, 2012
  100. Statistics

    What is the highest z-value for the lowest 10% of observations on the standard normal distribution?

    asked by Rem on April 24, 2013