# Questions Asked onJune 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.

2. ## Chemistry

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

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

4. ## pre cal

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

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.

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

7. ## Math

Find 9 tens more than 327508

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?

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 ???

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

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

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

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?

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

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

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.

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

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

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?

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.)

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]

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?

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.

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.

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

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.

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

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)

29. ## Human Resources

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

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

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.

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?

33. ## MATHS

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

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?

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?

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

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?

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

39. ## system of equations

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

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

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

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.

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

44. ## science

please give me 3 kinds of blood vessels

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

46. ## Physics

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

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

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?

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?

50. ## geometry

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

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.

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?

53. ## science

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

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?

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.

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?

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

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.

59. ## STATISTICS

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

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?

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

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.

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%

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?

65. ## intermeidate algebra

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

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

67. ## Maths

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

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

69. ## maths

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

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?

71. ## government

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

72. ## History

What is the "Just War" Theory?

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

75. ## chemistry

How Many H bonds in Oblate Polyhedra?

76. ## algebra1

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

77. ## health

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

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,

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 ?

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

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?

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

83. ## Health

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

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