# Questions Asked onJune 22, 2014

1. ## physics

An object dropped from a cliff falls with a constant acceleration of 10m/s2. Find its speed 2s after it was dropped? Solution:Given ,accelaration =10m/s time=2s speed=? therfore,speed=distance travelled\total time taken s=10\2=5(ans) . is it ok.

2. ## chemistry who step by step for me

1.2g mixture of na2c03 and k2c03 was dissolved in water to form 100cm3 of solution, 20 cm3 of this solution required 40cm3 of 0.1 hcl for neutralization. Calculate the weight na2c03 and k2c03 in the mixture? My calculation 20cm3/100cm3 = 0.2 x/53 +

3. ## Chemistry

The equation for the reaction of sucrose(sugar)with oxygen is C12H22O11+12O2--->12CO2+11H2O how many g of co2 is produced per g of sucrose used?how many mol of oxygen gas is needed to react with 1.0g sucrose?(C12H22O11=342g/mol)

4. ## math

Find the simple interest on N280.00 for 2 and half years at 3% per annum.

5. ## math

the functions f and g are defined as follows f(x)=5x-1 and g(x)=-4x^2-3 f(-6)= g(5)= simplify your answer as much as possible i have the first answer which is -31 for the next part i keep coming up with 97 which is wrong

6. ## Physics

A plate carries a charge of -2.0 µC, while a rod carries a charge of +3.0 µC. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge?

7. ## Marry gold english 2

What does the child in the poem think about his drawing?

8. ## Physics

A plate carries a charge of -2.0 µC, while a rod carries a charge of +3.0 µC. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge?

9. ## Physics

A heavier mass m1 and a lighter mass m2 are 20.5 cm apart and experience a gravitational force of attraction that is 8.60 10-9 N in magnitude. The two masses have a combined value of 5.80 kg. Determine the value of each individual mass.

10. ## Marigold Engsligh 2

what does the child wonder about his teacher?

11. ## math

Brett has been studying a type of bacteria that doubles every month. Originally, there were 5 bacterial cells. He wants to know how many there will be after 42 months. Which equation should he use? a42 = 5(2)42 − 1 a42 = 5(2)(42) a42 = 5(2)42 a42 =

12. ## Math

The cypress trees are 60 to 80 feet long. If there are 14,285 trees at an average length of 70 feet, how many feet of wood will the company?

13. ## Columbus State

CO(g) + 2H2(g) ↔ CH3OH(g) Kc=14.5 (500K) a. In which direction will the reaction proceed if the reaction vessel contains 0.500 atm CO, 0.500 atm H2, and 0.500 atm CH3OH? Show your calculations for full credit. Remember that Q and K both have to be

14. ## Survey of Mathematics

On January 5, Ebony Davis borrowed \$6,500 on a simple interest loan from a lending institution to finance her catering business. She borrows the money at a rate of 8.5% with a term ending on December 9. a. Calculate Ebony's interest on the simple interest

15. ## math

If 50ml of a 7.5% (w/v) sodium bicarbonate injection are added to 500ml of a5% dextrose injection , what is the percentage strength (w/v)of sodium bicarbonate in product?

16. ## Frequency

Calculate the relative frequency P(E) using the given information. 400 adults are polled and 320 of them support universal health care coverage. E is the event that an adult does not support universal health coverage. P(E)=?

17. ## English

1. He is busy during the weekend. 2. He is busy during the weekends. ------------ What is the difference between them?

18. ## Algebra 2

Every day, there are 5 times more likes on an internet video of a dog which is modeled by the function c(n) = (5)n − 1, where n is the number of days since the video posted. On the first day, there were 103 likes. What is the function that shows the

19. ## algebra

When 4 times a number is added to 7 times the number, the result is 33. which one is correct? ( -4.7, 1, -3, 4.7 )

20. ## physics

Which equation would you use when you were describing a flowing viscous fluid? Select one: a. The Bernouilli Equation b. The Poiseuille Equation c. The equation of continuity d. And of the Equation of continuity or the Bernouilli Equation or the Poiseuille

21. ## Criminal Justice - Policing

What is a characteristic of women who are least likely to be arrested? A. Physically attractive. B. Ladylike behavior. C. Aggressive. D. Honest and tactless I think it's B, but not sure

22. ## Statistics

No idea where to begin... Do men or women watch more T.V. per day? To answer the question two samples were select with the help of SPSS and the following results were produced. Is there a significant difference between men and women in watching T.V.?

23. ## Math

If the cost to recover the 60 to 70 foot cypress trees is \$375 each and the cost to harvest the larger trees is 500, how much it cost to recover all of the trees if 2/5 of the trees are more than 70 feet long?

24. ## Computers

What is the name of a personal digital assistant in apples smart phone

25. ## Compute

Compute the indicated quantity P(A probability B) = .1, P(B) = .5. Find P(A interception B).

26. ## Chemistry

I have an exam in a day and I'm confused on how to solve this question. Do I use PV=nRT? Do I find out the molecular formula of the gas from the percentage of nitrogen and oxygen? A sample of a mixture of gases contains 80.0% nitrogen gas and 20.0% oxygen

27. ## chemistry

Which one of the following statements regarding ideal gas laws is FALSE? Select one: a. An ideal gas has an infinite heat capacity b. The macroscopic ideal gas equation is PV = nRT c. The temperature must always be measured in Kelvin (K) d. A single

28. ## Physics

a train travels the first 30 km of 120 km track with a uniform speed of 30km/h.What should be the speed of train to cover the remaining distance of the track so that its average speed is 60km/h for the entire trip

29. ## algebra

Monika had 5 boxes of chocolates with her. If each box contains 25 chocolates. find the total chocolates she had.

30. ## math

Apharmacist incorporates 6g of coal tar into 120g of a5% coal tar ointment calculate the percetage (w/w) of coal tar in finshed product

31. ## Math

Find the range of value of X for each for the following inequalities 8-4x/x+5>1-x

32. ## Physics

A 17.9 kg block is dragged over a rough, hor- izontal surface by a constant force of 74.1 N acting at an angle of angle 32.3◦ above the horizontal. The block is displaced 72.4 m and the coefficient of kinetic friction is 0.242. Find the work done by the

33. ## Physics

Zak, helping his mother rearrange the furni- ture in their living room, moves a 48.9 kg sofa 3.3 m with a constant force of 21 N. What is the work done by Zak on the sofa? Neglect friction. Answer in units of J

34. ## Physics

In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.45 × 106 m/s. Find the central force acting on the electron as it revolves in a circular orbit of radius 5.18 × 10−11 m. Answer in units of N

35. ## Org Chem

Caffeine has a distribuation coefficient of about 8 between Me Cl2 and water. Given 30ml of water containing 10 grams of caffeine. a. How much caffeine can be extracted with one 30mL portion of MeCl2? b. How much caffeine can be extracted with three 10mL

36. ## math

can someone please explain this to me i am confused and don't know what to do Suppose that the function g is defined , for all real numbers, as follows g(x)={1/4x-1 if x≤-2 { -(x-1)^ +3 if -22 g(1)= g(2)= g(5)=

37. ## Math

At Smith's club the pay-per-visit fee is \$5 per day. would Smith save money paying per visit? Assume that a month has 4.3 weeks. what percentage of his monthly \$90 fee would he spend if he paid on a per-visit basis? 2. IF Smith goes to the gym three times

38. ## Statistics

I'm taking stats online which is making it even more difficult for me and I have nowhere to begin when answering this question. 1. A pharmaceutical industry claimed that their new product will lower the cholesterol level by an average of 14.5. To verify

39. ## Pre-Algebra

Q: A building lot in a city is shaped as a 30° -60° -90° triangle. The side opposite the 30° angle measures 41 feet. a. Find the length of the side of the lot opposite the 60° angle. b. Find the length of the hypotenuse of the triangular lot. C.Find

40. ## chemistry step by step for me

0.6g mixture of licl and bal was treated with 40ml of 0.2N agn03 and the excess ag on titration required 25ml of 0.1N kcns for the end point using ferric alum as the indicator. What is the percentage of iodine in the mixture Who helps me step by step for

41. ## pharmacy math who helps me step by step for me

How much 30% alcohol, 45% alcohol, 60% alcohol and 95% alcohol could be mixed to make 200ml of alcohol? the right answer 30% is 112.5ml 45% is 25ml 60% is 12.5ml 95% is 50ml Who helps me step by step clearly Please some professional tutor solve it

42. ## algebra

In this equation or question: translate the following text into an equation involving ratios and solve it. " Anne is paid \$45 per hour, if she worked 55 hours in a particular week, how much will she be paid that week? 45/1 = x/55: cross multiply and solve

43. ## chemistry

29.8 ml of ethanol (density = 0.789 g/ ml) initially at 9.9 degree celsius is mixed with 33.8 mL of water (density = 1.0 g/mL) initially at 27.8 degree celcius in an insulated beaker. Assuming that no heat is lost, what is the final temperature of mixture?

45. ## Math

IF Smith went to the gym every day, how much he pay per day on the monthly payment plan? Assume 30 days in a month. If Smith went every day and paid \$5 per day, how much he be spending per? how much more is to the \$90 monthly rate rounded to the nearest

46. ## algebra

solve for linear equation: -2x-2+7(x+1)=2x

47. ## Math - 3rd grade summer work

A Super-Duper ball bounces twice its height when it is dropped. Carl dropped a Super-Duper ball from the roof of a 12-foot garage. How high will the ball bounce after 5 bounces?

48. ## Physics

A string under a tension of 68 N is used to whirl a rock in a horizontal circle of radius 3.7 m at a speed of 16.53 m/s. The string is pulled in, and the speed of the rock increases. When the string is 0.896 m long and the speed of the rock is 71.5 m/s,

49. ## Physics

Two blocks connected by a string are pulled across a rough horizontal surface by a force applied to one of the blocks, as shown. The acceleration of gravity is 9.8 m/s2 . If each block has an acceleration of 5.2 m/s2 to the right, what is the magnitude of

50. ## math

If my dog and cat has a combine weight of 24kg and my rabbit and my dog has a combine weight of 20kg and my cat and rabbit has a combine weight of 10kg.whats the combine weight of my rabbit,dog and cat

51. ## Finance

An investor in the 28% tax bracket is trying to decide which of two bonds to select: one is a 5.5% U.S. Treasury bond selling at par; the other is a municipal bond with a 4.25% coupon, which is also selling at par. Which of these two bonds should the

52. ## chemistry

Sulphuric acid (H2SO4) solution reacts with magnesium metal (Mg) to magnesium sulphate and hydrogen according to: H2SO4 + Mg → MgSO4 + H2 How many litres of 5.00 M sulphuric acid would be required to dissolve 20.00 g of magnesium and how many mol of

53. ## chemistry

Indicate which of the following quantum states are allowed and which are disallowed under the rules governing the electronic structure of atoms. n = 2, l = 1, ml = 0, ms = ½ n = 3, l = 3, ml = -2, ms = -½ n = 4, l = 3, ml = -2, ms = ½ n = 3, l = 2, ml =

54. ## chemistry

Draw “arrows in a box” diagrams to illustrate the ground-state electronic configuration of the following species: 12 6C , 32 2 16 S − 28 14 Si , 57 2 28 Ni + , 35.5 17Cl− , 40 2 20Ca + , 31 15P

55. ## chemistry

Calculate the atomic mass of naturally occurring molybdenum (Mo) which contains the following isotopes. Isotope Abundance (%) Atomic mass (a.u.) 92Mo 15.8 91.91 94Mo 9.0 93.90 95Mo 15.7 94.91 96Mo 16.5 95.91 97Mo 9.5 96.91 98Mo 23.5 97.91 100Mo 9.7 99.91

56. ## Probability

Four Coins are tossed. Describe the sample space S, probability of getting more tails than heads and probability of getting at least two heads.

57. ## Probability

Let A and B be two events with P(A interception B)= 0.2, P(B) =0.15, and P(A U B)= 0.75. Find P(A)

58. ## Probability

I P(B) = 0.4, find P(B')

59. ## Trig laws help

mÚA=15.52, c=18ft, b=16ft, then a=? ft

60. ## Probability

Consider D ={red, blue, green} and F = {ball, car} find DXF

61. ## Probability

How many ordered lists are possible that contain five objects chosen from seven?

62. ## algebra

1.-2X-2 +7(x+1)=2x 2. 9x-1=-5+8x 3.7x-3= 4. when 4 times a number is subtracted from 7 times the number, the result is 30. What is the number? 5. when 4 times a number is added to 7 times the number, the result is 33. What is the number? 6. When 20% of a

63. ## algebra

The y-value is 5 more than 3 times the x-value. Which answer? 1. y=3x+5 2. y=-3x+5 3. y=-3x-5 4. y=3x-5

64. ## Probability

How many unordered sets are possible that contain four objects chosen from thirteen?

65. ## Probability

If the events A and B are disjoint, A Intersection B =0, P(B) = 0.17 and P(A U B)=0.55. Find P(A)

66. ## Probability

Four coins are tossed. What is the probability of getting more tails than heads and getting at least two heads?

67. ## Probability

Calculate the (modeled) probability P(E) using the given information, assuming that all outcomes are equally likely. n(S) =8, n(E) =4

You are interested in buying a new car and Bob let's you borrow one of the new cars on his lot for a week to test drive. You decide you like the car and when you visit Bob to drop off the car, he hands you the following document and a pen: May 1, 201x I

69. ## Algebra 1

v=lwh to find the volume of the box. L is 12 in, w is 6 in , h is 7in

70. ## Trig laws

Given the area ABC=7.52m©÷. Find a, when m¡ÐB=40¡Æ and c=6m.

71. ## math

What is the value of the variable cost ? If the break even point is \$ 130, the fixed cost is \$ 330, selling price per unit is \$ 25. (3 marks)

72. ## algebra

Solving the linear equation -2x-2+7(x+1)=2x

73. ## algebra

When 4 times a number is subtracted from 7 times the number, the result is 30. which one is correct? {3, -15, 10, or 0.9

74. ## algebra

When 20% of a number is added to the number, the result is 60. Which one is the correct answer? ( 10, 50, 17, 120 )

75. ## algebra

How would I write this sentence as an equation in two variables? The-value is 5 more than 3 times the x-value

76. ## science

How do you calculate field of view

77. ## finite math

how do I work this problem simple intrest I=Prt P= \$54 r=4% and t=9months

78. ## Algebra

Find a recursive rule for the sequence 3, 6, 12, 24, … I can't decide if it's a sub n= (2)n times sub n-1 or a sub n= 1/2 times sub n-1

79. ## HELP!!!

Given the area of ABC=7.52m^2. Find a to the nearest hundredth meter when m

80. ## Chemistry

A 5.00 mL aliquot of vinegar (acetic acid, FW = 63 g/mol) was diluted and titrated with 0.1104 M NaOH requiring 32.88 mL. If the vinegar has a density of 1.055 g/mL, calculate its acidity as % acetic acid

81. ## Chemistry

10. For the titration of 20.00 mL 0.1000 M lactic acid with 0.1000 M NaOH, calculate the pH: a. before any titrant is added b. 10.00 mL prior to the equivalent point c. at the equivalent point d. 10.00 mL after the equivalence point. Plot the points

82. ## Geography

Conduct reseach to examane the sphere of influence of an organisation that renders a services in a community e.g clinic,hospatals

83. ## physics

The definition of an incompressible fluid is Select one: a. A fluid with a constant density at all pressures b. A fluid with no viscosity c. A fluid with a constant pressure d. A fluid with viscosity

84. ## chemistry

Which one of these is NOT a mechanism of heat transfer Select one: a. Reflection b. Radiation c. Convection d. Conduction

85. ## visual logic

The Daily Gazette accepts classified ads in several categories. For most ads, the newspaper charges 10 cents per word for the first 50 words, and 8 cents per word for every word after that. Design Visual Logic Flowchart for a program that accepts data

86. ## science

Why can we see ourselves in a mirror but not a wall

87. ## math

1. Elizabeth planned to make 6 pans of apple crisp for the day, using extra tart granny smith apples-just like her grandmother had. But after peeling, coring, and slicing she had a major problem: she only had 10 cups of apple slices. it was getting late

88. ## math

1. Elizabeth planned to make 6 pans of apple crisp for the day, using extra tart granny smith apples-just like her grandmother had. But after peeling, coring, and slicing she had a major problem: she only had 10 cups of apple slices. it was getting late

89. ## math

1. At Smith's club the pay-per-visit fee is \$5 per day. would Smith save money paying per visit? Assume that a month has 4.3 weeks. what percentage of his monthly \$90 fee would he spend if he paid on a per-visit basis? 2. IF Smith goes to the gym three

90. ## science

Find the mass of potassium chloride and volume of oxygen at STP liberated when 0.5 moles of potassium chlorate are heated.Also find the moles and mass of oxygen evolved.

91. ## Shakespeare, English

Hi i need to write about 3 more paragraphs about: Compare different ways that Shakespeare describes dreams in the three extracts (Puck's final speech, Clarence's Dream & Caliban's Dream) using PEE i have done 4 if anyone gives me at least 2 more that would

92. ## chem

how many NaOH are needed to to react with 98.1 mol AlO3