Questions Asked on
June 29, 2012

  1. Physics

    A motorist traveling with a constant speed of 15m/s passes a school-crossing corner, where the speed limit is 10m/s. Just as the motorist passes, a police officer on a motorcycle at the corner starts off in pursuit with constant acceleration of 3m/s^2.

    asked by :)
  2. Chemistry

    Calculate the molarity and normality of a solution containing 9.8 g of H2SO4 on 250 cm cube of the solutiom

    asked by Shafket
  3. Physics

    Two masses Ma= 2.0 and Mb= 5.0 are on inclines and are connected together by a string as shown in the figure(Figure 1) . The coefficient of kinetic friction between each mass and its incline is u= 0.30. If Ma moves up, and Mb moves down, determine their

    asked by Truman
  4. pre cal

    simplify sin (8x) using only sin(x) and cos (x)

    asked by Terri
  5. Physics

    A motorist traveling with a constant speed of 15m/s passes a school-crossing corner, where the speed limit is 10m/s. Just as the motorist passes, a police officer on a motorcycle at the corner starts off in pursuit with constant acceleration of 3m/s^2.

    asked by :)
  6. geometry

    Jackson is creating a water garden surrounded by a triangular patch of grass. If the pond will take up the space indicated by the circle, how many square feet of sod will he need to complete the garden (use 3.14 for and round your answer up to the next

    asked by shanice
  7. Math

    Find 9 tens more than 327508

    asked by Anonymous
  8. trig

    If tan A = 2 and A belongs to [pie,3pie/2] then the expression cos A divided by sin cubed A +cos cubed A is equal to what?

    asked by susmita
  9. US government

    Courts issued court orders, or (i-j--cti---), to make sure that people of color were allowed to vote. what is this word ???

    asked by Jessica
  10. Physics

    A race car completes the final lap of a race on a 2-kilometer circular track. At the start of the lap, it crosses the line at 60 meters/second. It completes the lap 28.57 seconds later, crossing the line at 85 meters/second. Calculate the displacement and

    asked by Henry
  11. algebra/functions

    a farmer has 600 meters of fencing and plans to use it to build two adjacent rectangular pens as show above. the farmer would like the total area of the two pens to be 1000 square meters. write an equation to determine the value of x? My solution is: 3X^2

    asked by luckybee
  12. Physics

    you measure the diameter of a circle then you calculate the radius of the circle using this diameter. (1) Which one has a greater uncertainty, the diameter or the radius? Why? you measure the radius of a circle then you calculate the diameter of the circle

    asked by Denji
  13. Algebra

    Another bank offers a different savings rate. If an account with $400 earns interest of $6, how much interest is earned by an account with $1800?

    asked by Anonymous
  14. physics

    An oil drop is stationary within an electric field of 490 V/m that is set up between two parallel plates. If the volume of the oil drop is 4 X 10 (-19) m3, how many excess electrons does it carry? (I'll give ya'll just one hint: the fundamental unit of

    asked by ALICIA
  15. maths

    fractions -in a school,3/5 of the students are girls, number of boys in the school is 200. find the total number of students in the school

    asked by Anonymous
  16. Physics

    Saturn makes one complete orbit of the Sun every 29.4 years. Calculate the radius of the orbit of Saturn. Hint: It is a very good approximation to assume this orbit is circular.

    asked by Sierra
  17. english

    Hi, I Proofread for wording errors and grammar, but I need help to see if my grammar is proper now. I personally respect every religion, and I love reading holy books. Holy books inspire many people. Holy books taught me many morals and stories on our

    asked by z
  18. statistics

    For the major airlines, 21% of all flights depart at least 15 minutes late with a standard deviation of 5%. Currently, 24% of all American Airlines flights depart at least 15 minutes late. If American wants to be in the top 10% of all major airlines with

    asked by carolyn
  19. algebra

    Andrea Betty Joyce Karen and Paula are starters on their school basketball team . How many different groups of three can be chosen for a photo?

    asked by Anonymous
  20. algebra

    Find the greatest common factor of 270 and 360. (Give the answer in the numerical form in the top box and in exponential form by filling in the boxes for exponents.)

    asked by tyjia
  21. Chemistry

    Calculate the volume at s.t.p. occupied by a gas 'Q' originally occupying 153.7cc at 287K and 750mm pressure [vapor pressure of gas 'Q'at 287K is 12mm of Hg]

    asked by Mayank Goswami
  22. geometry

    a packaging company manufactures a cardboard box with a volume of 864 cubic inches. the length of the box is 24 inches, and the ends of the box are square. what is the height of the box in inches?

    asked by luckybee
  23. Middle Math

    Cooking To make a batch of fruit punch, Larry needs 2 2/3 cups of blackberry juice. If she wants to make 2 3/4 batches of punch, how many cups of blackberry juice will she need. Thanks My answer is 7.3 or 8 cups of blackberry.

    asked by Samie
  24. Physics

    Suppose the circular track in the figure below has a radius of 104 m and the runner has a speed of 3.3 m/s.

    asked by Sierra
  25. spanish

    1.También tengo mi propio auto. 2. Me llamo Mario Verdejo. 3. Soy el mejor chofer de Santiago. 4. Mi nuevo cliente se llama Jaime Talavera y es de los Estados Unidos. 5.Mañana vamos al Valle de Maipo. can some one help me put this in order cant seem to

    asked by CHRIS
  26. geometry

    Xenia is ordering a cake for her friend’s wedding. She knows that there will be 110 guests at the wedding, and she is trying to decide how large a cake to order. She has been told that each guest should get a piece of cake that is 4 inches by 4 inches.

    asked by shanice
  27. logic

    a student is using a geometry program to investigate the midsegments of a triangle. the student uses the program to draw triangle ABC, bisect the sides of the triangle, and draw segments connecting the midpoints to form triangle KLM. the student then uses

    asked by luckybee
  28. geometry

    Given these sets a=(3,4,5,6,7) b=(6,7,8,9) c= (2,4,6,8) List the elements of this set CN (AUB)

    asked by angela
  29. Human Resources

    What do you think are three most prominent characteristics of a human service professional?

    asked by Angie
  30. algebra/functions

    Dave started his coin collection with 25 coins. the first wee he added 2 coins, the next week he added 4 coins, and the third wee he added 6 coins. If Dave continues adding coins in the same way, how many coins will he have in his collection after one year

    asked by luckybee
  31. math

    In my math book I got a question that said Keith plans on eating 1 1/4 cups of tuna per day for five days.How much tuna does he need?Are four cans enough. He needs 6.25 cans of tuna. Am I correct.

    asked by Americal
  32. Physics

    A stone of mass 0.31 kg is tied to a string of length 0.65 m and is swung in a horizontal circle with speed v. The string has a breaking-point force of 70 N. What is the largest value v can have without the string breaking?

    asked by Sierra
  33. MATHS

    TWO OPPOSITE ANGLES OF A PARALLELOGRAM ARE (3X-2)DEGREE AND (50-X)DEGREE FIND THE MEASURE OF EACH ANGLES

    asked by ASDFG
  34. senn high school

    Please wite a paragraph (5sentences)to show you comprehend what analogies and idioms are.Use at least one analogy and one idiom in the paragraph?

    asked by jacky
  35. Chemistry

    How would you find that water is more acidic than ammonia with out using pka values? would you use resonance effect, inductive effect, hybridization effect, or element effect?

    asked by UCI Student
  36. chemistry

    detail how to dilute a stock solution of nitric acid, 81 m HNO3, to prepare 675 ml of a 2.5 M solution

    asked by Jenny
  37. Science

    1.The estimated doubling time for the black sea urchin population is approximately 1.5 years. What is the annual growth rate of the urchin? help please?

    asked by Nina
  38. mathematics

    use Simpson's Rule with n=10 to approximate the area of the surface obtained by rotating the curve about the x-axis. y = xln(x) from 1 < x < 2

    asked by rohan
  39. system of equations

    X^2 + Y^2 =70 Y = 2X + 5 MY ANSWER: -5.6, 1.6 is this correct?

    asked by luckybee
  40. probability

    a student rolls three standard six-sided dice. what is the probability that the sum of the numbers that come up will be 18? is the answer 1/216

    asked by luckybee
  41. Physics

    A Spanish galleon is about to be boarded by bloodthirsty pirates in the shallows of a Caribbean island. To save a box of treasure on board, the captain orders his crew to secretly toss the box overboard, planning to come back for it later. The rectangular

    asked by angela
  42. Physics

    In recent years, a number of nearby stars have been found to possess planets. Suppose, the orbital radius of such a planet is found to be 3.0 1011 m, with a period of 1000 days. Find the mass of the star.

    asked by Sierra
  43. Physics

    Eris, the largest dwarf planet known in the Solar System, has a radius R = 1200 km and an acceleration due to gravity on its surface of magnitude g = 0.77 m/s2. (a) Use these numbers to calculate the escape speed from the surface of Eris. (b) If an object

    asked by James
  44. science

    please give me 3 kinds of blood vessels

    asked by leane hart garcia
  45. Physics

    Speed of a satellite orbit (physics problem)? What is the speed of a satellite in a geosynchronous orbit about Earth? _________m/s Compare it with the speed of the Earth as it orbits the Sun. _________m/s

    asked by Sierra
  46. Physics

    which do you prefer to use, an instrument which is more precise or one which is more accurate? WHY? thanks po! :)

    asked by Gen
  47. Physics

    A Spanish galleon is about to be boarded by bloodthirsty pirates in the shallows of a Caribbean island. To save a box of treasure on board, the captain orders his crew to secretly toss the box overboard, planning to come back for it later. The rectangular

    asked by Tracy
  48. physics

    the jet has a speed of 250 miles/hr, carried a bomb of 20 kgs, im 3000 ft. how seconds the bomb fall in to 3000 ft?

    asked by jade
  49. physics

    the jet has a speed of 250 miles/hr, carried a bomb of 20 kgs, in 3000 ft. how seconds the bomb fall in to 3000 ft?

    asked by jade
  50. geometry

    Determine the following AU(CUB)start by finding C and B then find CUB.

    asked by angela
  51. Physics

    Suppose the circular track in the figure below has a radius of 104 m and the runner has a speed of 3.3 m/s.

    asked by Sierra
  52. geometry

    A manufacturer wants to package samples of a product in a box with a square base. the package is to have a volume of 100 cubic centimeters. what is the func that will describe the surface area of the box S(x) in ters of the length of a side of the base, X?

    asked by luckybee
  53. science

    what substance is being reduced in the following redox reaction? HgCl2 + Sn^2 = Sn^4 + Hg2Cl2 + Cl-

    asked by akos
  54. Maths

    Reena draws a triangle with its sides are 3 cm and 5 cm. Is the triangle drawn by Reena a right angled triangle? Why?

    asked by Nishant Nain
  55. math

    How many ways can 8 cars be parked in two big spaces? Three cars can fit in one and two can fit in the other.

    asked by Andy
  56. algebra

    marcus rides his bicycle of 3 1/8 hour per day. what is the number of seconds that marcus spends riding his bike each day? My answer: 11,250 is this correct?

    asked by luckybee
  57. math

    In my math book i got a question that said 45 1/4 times 23 3/4 i got an answer of 16,652. I don't know how to do the problem can you help he

    asked by Americal
  58. algebra

    a tank used to operate equipment can be filled with air in 3 hours. when the outlet valve is open, the same tank can be emptied in 5 hours. if the tank is filled with the outlet valve open approximately how long will it take to fill the tank? 71/2 hours.

    asked by luckybee
  59. STATISTICS

    WHAT IS THE MEANING OF X~N(42,5,103.71)

    asked by JUSTUS
  60. algebra/functions

    a quadractic function y=3x^2-6x+5 is expressed in the form (y-k)= A(x-h)^2, where the poing (h,k) is the vertex of the parobla. What are the value of h and k? (1,2) is this correct?

    asked by luckybee
  61. Physics

    A Spanish galleon is about to be boarded by bloodthirsty pirates in the shallows of a Caribbean island. To save a box of treasure on board, the captain orders his crew to secretly toss the box overboard, planning to come back for it later. The rectangular

    asked by Tracy
  62. Physics

    Consider points on the Earth's surface as sketched in the figure below. Because of the Earth's rotation, these points undergo uniform circular motion. Compute the centripetal acceleration at the following points.

    asked by Sierra
  63. Finance

    a client comes to you for an investment advice on his 500,000 winnings from the lottery. he has been offered the following options. what would be the best option 6% compounded interest quarterly for 5 years or 8% compounded annually for 5 years or 14.5%

    asked by Angel
  64. algebra

    what is the graph of 6X^2+6X-12>0? My solution is: an open circle over -2 going to infinite an open circle over +1 going to infinite is this correct?

    asked by luckybee
  65. intermeidate algebra

    solve using elimination method -3x+4y=1, -6x+6y=-3

    asked by Mary
  66. math

    half of a strawberry crop was ruined by a sudden frost. About one-quarter of the undamaged fruit spoiled while being hauled to market. How much of the original strawberry crop could the farmer sell at the produce market

    asked by briyana
  67. Maths

    45% is 28 100%=? Please show me the concept and the working out as well please

    asked by Jiskhaa
  68. math

    A 10-item multiple choice test with 4 options (A,B,C,D) is given to a class in English, what is the probability that the student’s answers are of the same letters

    asked by mae
  69. maths

    if a bowling green is 1350meters square and the chemical is 0.4 litres a hectare how much do you put on

    asked by edward
  70. government

    1.what is the procedure of voter identification intended to help prevent fraudulent voting and keep the process organized? 2. what do you call all the persons entitled to vote in any given election? 3.what is another term for suffrage?

    asked by victoria
  71. government

    in 3-4 sentences, explain why is voting important in a democratic society.

    asked by sydney
  72. History

    What is the "Just War" Theory?

    asked by Vanessa
  73. Pre cal

    Sec^2x=2 With 10 different answers

    asked by Terri
  74. Math

    My class is mixing 3 1/5 batches of paint. If one batch calls for calls for 2 3/4 tablespoons of detergent to be added to the powder, how many tablespoons of detergent will my class need? My class will need about 8 3/4 tablespoons of detergent. Is this

    asked by Americal
  75. chemistry

    How Many H bonds in Oblate Polyhedra?

    asked by Jenna
  76. algebra1

    subtract: 7-z/z-5 - 4z-9/5-z

    asked by jimmy
  77. health

    when comparing the daily requirement for vitamains and minerals across all life-stage group,it can be said that.

    asked by carol
  78. trig

    a circular chimney pipe with an 8-inch diameter passes vertically from a heater through a metal plate in the roof. the plate has an elliptical hole that measures 8 inches along one axis. if the roof is slanted at an angel of 40 degrees with the horizontal,

    asked by luckybee
  79. algebra

    a passenger train traveling at 50 mph leaves the station 6 hours after a freight train and ovetakes it in 4 hours . How fast is the freight train traveling ?

    asked by naaman
  80. Finance

    The target capital structure for QM Industries is 38% common stock, 5% preferred stock, and 57% debt. If the cost of common equity for the firm is 17.7%, the cost of preferred stock is 10.4%, the before-tax cost of debt is 7.8%, and the firm's tax rate is

    asked by Janice
  81. trig

    using a right triangle with one angle 24 degrees and the opposite side being 57 feet, write an expression to fine the hypotenuse, X? X=57/sin(24) is this correct?

    asked by luckybee
  82. trig

    the horizontal speed of an airplane is 173 miles per hour. the magnitude of the planes velocity is 200 miles per hour. what angle is the plane climbing? My answer is Cos-1 173/200. is this correct

    asked by luckybee
  83. Health

    How many calories do you lose if you drink a glass of water????

    asked by Laruen
  84. logic

    1+3=4=2^2 1+3+5=9=3^2 1+3+5+7=16=4^2 is this an example of inductive or deductive reasoning. I believe it is deductive because it's proven

    asked by luckybee
  85. math

    Ms.sue i forgot to tell you that 4 cans of tuna = 5 3/5 cups. Is 6.25 cups correct.THANKS

    asked by Americal
  86. science

    how do inference help scientist in their discoveries?

    asked by thessalonica