Questions Asked on
August 28, 2015

  1. Math

    An airplane is flying at an airspeed of 500 km/hr in a wind blowing at 50 km/hr toward the southeast. In what direction should the plane head to end up going due east? (Round your answer to two decimal places.)What is the airplane's speed relative to the

    asked by Kristen
  2. How many milliliters of a stock solution of 6.00 M

    How many milliliters of a stock solution of 6.00 M HNO3 would you have to use to prepare 0.190 L of 0.490 M HNO3? I used the equation M1V1=M2V2 6M*V1 = 0.190L*0.490 M lead me to this V1=0.190L*0.490M/6.00 M =0.0931 L per M/6.00M =0.0155166L

    asked by Sara
  3. chemistry

    Calculate the mean speed, using equation 1.13 and 1.17 of (a) He atoms and (b) CH4 molecules at (i) 79 K, (ii) 315K, and (iii) 1500K. Vrms= (2(Ek)/m)^1/2 Vrms= (3RT/M)^1/2 M(He)= 4.0*10^-3 kg/mol M(CH4)= 16.0*10^-3 kg/mol

    asked by help?!?!?
  4. Bogalusa high school

    A loaf of bread has a mass of 500 grams and volume of 2500 cm3. What is the density of the bread?

    asked by Darris fields
  5. heith

    Shirley has two containers of water for a camping trip. One container holds 2 times as much as the other. The total amount of water is 30 gallons. How much water is in each container?

    asked by zach
  6. Chemistry

    What can be said about a substance with a triple point above 1atm 1) The liquid state of the substance cannot exist. 2) The gaseous state at 1 atm pressure cannot be condensed to the solid at the triple point temperature. 3) The melting point of the solid

    asked by Trinh
  7. Math

    Looking to find the missing digit for each statement true. The number 874_ is divisible by 4. Please help how to solve

    asked by Cyle
  8. government

    How much power and autonomy should Texas have in relation to the federal government? Why?

    asked by Anonymous
  9. math

    A town has a population of 2000 people at time t = 0. In each of the following cases, write a formula for the population, P, of the town as a function of year t. (a) The population increases by 60 people per year. I thought it would be P= 2000 (1.03)^t (b)

    asked by Natalie
  10. good Samaritan school

    The density of the ice is 918kgm-3 and that of water is 1030kgm-3. An iceberg floats with a portion of 224 litre outside water. Find the volume of the iceberg.

    asked by tanmay
  11. Political Science

    Develop an argument for a strong national government, or for greater state sovereignty and independence.

    asked by Daniel
  12. Political Science

    Does the representation system in the U.S. Senate still make sense today? Why or why not?

    asked by Daniel
  13. Geometry

    Perimeter of isosceles is 36 find the 2 unequal sides

    asked by Moez
  14. New Light Academy

    A uniform cylindrical pipe has an external diameter of 3.6cm and an internal diameter of 2.8cm. a)Calculate the volume of the material required to construct a metre length of the pipe. b)One cubic metre of material used has a mass of 44kg.Calculate the

    asked by Kenneth
  15. MATH

    PROVE THAT sin3Asin6A+sinAsin2A/sin3Acos6A+sinAcos2A

    asked by VALENTINE
  16. Maths

    A, B and C made 795 machines at the same time. To make one machine, A needs 6 minutes, B needs 5 minutes and C needs 4.5 minutes. So, how many machines did C make?

    asked by Alvina
  17. Math

    x^-5 * x^7= x^5 can someone explain why and check if it is correct

    asked by Jake
  18. SCIENCE!

    more on hypotheses hypotheses help explain puzzling situations or events. hypotheses answer "how", "what, and "why" questions. explain each of the following situations with a hypothesis: 1. you hang a bird feeder, fill it with food, but no birds come to

    asked by anon
  19. Punjabi

    Who made social studies.

    asked by pravesh
  20. algebra

    write an expression to represent each situation. then find the value of each expression to solve the problem. 1. on saturday, mrs. armor bought 7 pairs of socks for $3 each, and a sweater for her dog of $12. then she found a $5 bill on the sidewalk. over

    asked by anon
  21. English

    I have to write a thematic essay and a characteristic essay. I have a few questions in the writing. I am in grade 11 right now. 1) what should I include in the introduction? Whenever I write anything about the story, my tutor says that is summarizing and I

    asked by Anonymous
  22. CHEMISTRY

    Explain the terms, Molar mass and Avogadro's number?

    asked by BARNABAS
  23. mathematics

    A man takes a 500km trip in his car, He rotates his tyres (four on the car and one spare) so that in the end of the trip each tyre has been used for the same number of kilometres. How many kilometres did each tyre cover?

    asked by Samuel
  24. Statistics

    In advance of the 1936 Presidential Elections, a magazine titled Literary Digest released the results of an opinion poll predicting that the republican candidate Alf Landon would win by a large margin. The magazine send post cards to approximately

    asked by Ashley
  25. language arts

    Based on "The Raven and the First Men: The Beginnings of the Haida,” the reader can infer that the Haida A.were lacking in basic necessities. B.had plenty of food and water available. C.relied mainly on the ocean for provisions. D.waited for the Raven to

    asked by taytay
  26. Math

    Simplify by writing each fraction in lowest terms: X^2-y^2/(x-y)^2 My work: X^2-y^2/(x-y)^2 =X^2-y^2/(x-y)(x-y) =X^2-y^2/x^2-2x2y-y^2 I don't know what to do next.

    asked by Anonymous
  27. Math

    A lottery game has balls numbered through 19. What is the probability of selecting an even numbered ball or a 4 ?

    asked by jacqueline
  28. Math

    if the probability that an identified hurricane will make a direct hit on a certain stretch of beach is 0.20, what are the odds against a direct hit? 1 : 0.20 I :19 i think its like this way?

    asked by jacqueline
  29. English

    Which value is reflected in Heracles ? .

    asked by Anthony
  30. life orientation

    Assess the extend to which bad road use has a direct impact on the physical, emotional, social and economic aspect to the family , the community and the country

    asked by judy jobs
  31. PHYSICS

    The x and y components of a vector A are 4 and -5 respectively and Vector B are -2 and 1 respectively. If A-B+3C=0, find the Cartesian coordinates for vector C?

    asked by BARNABAS
  32. Math (Ms.Sue)

    .   The Main Street Cinema holds 1,356 people. Last Saturday night, they were sold out for two showings of Super Alien 5. There was a special price of $5 for every seat for each showing. How much money did the theater take in that night?  A. $10,888 B.

    asked by Brooklyn
  33. Physics

    An airplane has a takeoff speed of 66m/s. Assuming a constant acceleration of 1.62m/s^2, how long is the plane accelerating down the runway?

    asked by Marty
  34. math

    Julia is offered a job selling advertising for two different companies. Company A offers a base salary of $30,000 per year plus a year-end bonus equal to 3% of her total sales. Company B offers a base salary of $25,000 per year plus a year-end bonus equal

    asked by anthony nichols
  35. English

    write a story that illustrates the saying "Every dark cloud has a silver lining"

    asked by Vera
  36. Math

    the odds in favor of an earthquake are 7 to 1. what is probability that an earthquake will occur? So is it 1/7 ? im confused

    asked by Jacqueline
  37. Math

    The odds of rolling two dice and the sum being greater than 9 are 6 to 30. What is the probability that the sum of two rolled dice is less than or equal to 9? I got 1/5 because its greater? help.

    asked by Jacqueline
  38. payroll acct

    Mary makes $12.50 per hr she worked 44.5 hrs so i did 40 times 12.50 then 4.5 times $18.75 the added the totals But her !@#$%^&. wages was $27,675.13 i need to know the taxable wages for OSADI and MEDICARE what is the amt being taken out for OASDI and

    asked by ruby
  39. Calculus

    Let f be a function defined for all real numbers. Which of the following statements must be true about f? Which might be true? Which must be false? Justify your answers. (a) lim of f(x) as x approaches a = f(a) (b) If the lim of f(x)/x as x approaches 0 =

    asked by Anonymous
  40. calculus

    A snowball is melting at the rate of 2 inches per hour. How fast is the surface area of the snowball changing at the instant the snowball has a radius of 3 inches i tried (d/dt) = 4pir^2 (dr/dt) its multiple choice and -72pi isnt there so im just trying to

    asked by Thomas
  41. chemistry

    calculate kole fraction of hcl in solution of hcl contaning 24.8% of hcl by mass

    asked by dipak
  42. algebra

    How many possible license plates can be formed consisting of three letters in the first letter must be either M,N, or P?

    asked by Jacqueline
  43. physics

    You are trying to lose weight by working out on a rowing machine. Each time you pull the rowing bar (which simulates the "oars") toward you, it moves a distance of 1.17 m in a time of 1.84 s. The readout on the display indicates that the average power you

    asked by kate
  44. physics

    An archer, about to shoot an arrow, is applying a force of +250 N to a drawn bow string. The bow behaves like an ideal spring whose spring constant is 510 N/m. What is the displacement of the bow string?

    asked by kate
  45. physics

    The drawing shows an intravenous feeding. With the distance shown, nutrient solution (ñ = 1040 kg/m3) can just barely enter the blood in the vein. What is the gauge pressure of the venous blood? Express your answer in millimeters of mercury.

    asked by kate
  46. physics

    The human lungs can function satisfactorily up to a limit where the pressure difference between the outside and inside of the lungs is 1/21 of an atmosphere. If a diver uses a snorkel for breathing, how far below the water can she swim? Assume the diver is

    asked by kate
  47. physics

    If a scuba diver descends too quickly into the sea, the internal pressure on each eardrum remains at atmospheric pressure while the external pressure increases due to the increased water depth. At sufficient depths, the difference between the external and

    asked by kate
  48. physics

    The aorta carries blood away from the heart at a speed of about 43 cm/s and has a radius of approximately 1.1 cm. The aorta branches eventually into a large number of tiny capillaries that distribute the blood to the various body organs. In a capillary,

    asked by archer
  49. math

    why did airhead eat the dollar he brought to school

    asked by ela
  50. physics

    A 58.0-kg man is riding an escalator in a shopping mall. The escalator moves the man at a constant velocity from ground level to the floor above, a vertical height of 3.70 m. What is the work done on the man by (a) the gravitational force and (b) the

    asked by archer
  51. Nothing

    Just wanted to say hope everyone has a great year of school this year.

    asked by TayB
  52. physics

    Starting from rest, a 2.4x10-4 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exerts an average upward force of 0.42 N on it. This force does 1.5x10-4 J of work on the flea. (a) What is the flea's speed when it

    asked by archer
  53. Math (Ms.Sue)

    10.   Solve this inequality: 8z + 3 – 2z < 51  A. z < 14 B. z < 9 C. z < 8 D. z < 5.4 8z + 3 - 2z < 51 6z + 3 - < 51 - 3 - 3 6z/6 < 48/6 z < 8 Am I correct?

    asked by Brooklyn
  54. business math

    Calculators cost the manufacturer $2.16 each to produce. If a markup of $2.16 is added to the cost,whatbis the selling price

    asked by debra
  55. physics

    A pistol of mass 2kg fires a bullet of mass 50g. The bullet strikes a block of mass 0.5kg. If the block with bullet embedded in it moves with a velocity of 4m/s the recoil velocity of the gun will be..??

    asked by yash
  56. finance

    Here are data on $1,000 par value bonds issued by Microsoft, Ford, and Xerox at the end of 2008. Assume you are thinking about buying these bonds as of January 2009. Answer the following questions: a.) Calculate the values of the bonds if your required

    asked by Yatie