# Questions Asked onJuly 1, 2012

1. ## W

A small plastic ball of mass m = 3.00 g is suspended by a string of length L = 24.5 cm in a uniform electric field, as shown in the figure below. If the ball is in equilibrium when the string makes a θ = 16.0° angle with the vertical as indicated, what

2. ## Maths

M squared is greater than or equal to 36 How to find m I only have one set of answers for m and that is m is greater than or equal to 6 How to find the second set? Working out please

3. ## chemistry

What is the molality of a solution containing 7.8 g of MgCl2 in 725 g of water?

4. ## Algebra

Given f(x) = radical x-2 and g(x) = x2 – x – 6. Find (f – g)(6). A. -26 B. 26 C. -22 D. 22 E. 2

5. ## Algebra

Given f(x) = radical x-2 and g(x) = x2 – x – 6. Find (g o f)(6). A. -4 B. 2 C. 24 D. 26 E. 48

6. ## science

two tall buildings are 200m apart .with what speed must a ball be thrown horizontally from the window 540 m above the ground in one building, so that it will enter a window 50m above the ground in the other?

7. ## Engineering Physics

You want to use a spring (k=100 N/m) to send a 500-g mass up a frictionless incline (30 degree to horizontal) to arrive at a platform 3m above the ground. How far should you compress the spring?

8. ## social studies

where is the mountain range in the sourthern hemisphere along 75degrees west?

9. ## science

a hunter aims his gun and fires a bullet directly at a monkey in a tree. at the instant the bullet leaves the barrel of the gun,the monkey drops. will the bullet hit the monkey .substantiate your answer with proper reasoning.

10. ## science

a man wishes to cross a river in a boat .if he crosses the river in minimum time then he takes 10min with a drift of 120 m .if he crosses the river taking shortest route,he takes 12.5min find the velocity of the boat with respect to water.

11. ## science

to prepare 500cm^3 of glucose solution of concerntration 1M. The chemical formula of glucose is C6H12O6.calculate (1)the relative molecular mass and molar mass.(2)the amount of glucose which will be in the solution.(3)the mass of glucose to be weighed

12. ## science

to prepare 500cm^3 of glucose solution of concerntration 1M. The chemical formula of glucose is C6H12O6.calculate (1)the relative molecular mass and molar mass.(2)the amount of glucose which will be in the solution.(3)the mass of glucose to be weighed

13. ## science

a particle is moving with a velocity of 5m/s .after 5sec it is found to be moving with velocity of 12 m/s in a direction perpendicular to the original direction.during these 5sec find 1.change in speed, 2.change in velocity and magnitude of change in

14. ## science

a person walks up a stationary escalator in t1 second if he remains stationary on the escalator then it can take him up in t2 second if the length of the escalator is L,then 1.determine the speed of man with respect to escalator 2.determine the speed of

15. ## science

a boat heading due north crosses a wide river with speed of 12km/h relative to the water the water in the river has a uniform speed of 5 km/h due east relative to the earth.determine the velocity of the boat relative to an observer standing on either bank

16. ## science

a person standing on a road has to hold his umbrella at 60 degree vertical to keep the rain away he throws the umbrella and starts running at 20 m/s he finds that rain drops are falling in him vertically. find the speed of the rain drops with respect to

17. ## maths

two 2 digit numbers reading across and two 2 digit numbers reading down

18. ## Foreign languages

Writeacher, thank you very much! Can you please check these sentences, too? 1) They left for the supermarket a few minutes ago.My child is with them. They need to buy food for lunch and won't be back until noon. We'll spend the afternoon at home because

19. ## psychology

Your friend James would like to stop biting his nails. A therapist suggests applying a topical ointment that will make nail biting an unpleasant experience, in a way, punishing James for his behavior. The therapist is using a _______________ perspective

20. ## mnhs

an open box is to be made from a rectangular piece of tin 12 inches long and 10 inches wide by cutting pieces of x-inches square from each corner and bending up the sides.find the domain of the function ?

21. ## Foreign languages

Can you please check these questions, Witeacher? Thank you. 1) Focus on Chapter 10 of Stevenson's Dr. Jekyll and Mr. Hyde and describes how Dr. Jekyll manages to separate his two identities. 2) What kind of narrative technique does Stevenson adopt? 3) In

22. ## chemistery

how many grams of NaOH are needed to react with two moles of H2SO4

23. ## physics

A radar installation that is used to track airplanes transmits electromagnetic radiation with a wavelength of 4 cm. Calculate the frequency of this radiation in Hz. Calculate the time required for a pulse of radar waves to reach an airplane 4.0 km away and

24. ## geometry

What is the surface area of a rectangular prism with a length of 12 cm, a width of 6 cm, and a height of 4 cm?

25. ## Foreign languages

Thank you. Here are a few other sentences I'd like you to check. 1) How is the theme of the double investigated in Shelley's Frankenstein? As for Shelley's Frankenstein, both Doctor Frankenstein and his creature are complementary: They both suffer from a

26. ## Maths

On August 1, 2011 Blancard Inc. Issued \$250,000 of 10%, seven year bonds. Interest is to be paid semi-annully. Calulate the issue price of the bond if the market interest rate was 12%.

27. ## math

A square pyramid has a surface area of 202 ft2 and a base area of 53 ft2. What is the lateral area of the pyramid? A.149 ft2 B.96 ft2 C.174 ft2 D.151 ft2

28. ## FINA310 unit4 Financial management

Is there any submitions that can help me with this IP on the manufacturing company

29. ## math please do it for me, i need it

f'(sinx)=cos^2x,f'(1)=1 then f(x)=

30. ## Accounting

If a client asks me to do a balance sheet for a given month, but they put a question mark beside Truck and Accounts Payable in the assests column..can I even do the balance sheet since these are part of the assests?

31. ## Foreign languages

Can you please check these questions, too? Thank you, Writeacher! 1) Which characteristics of the old ballad form does The Rime of the Ancient Mariner contain? In what way does the Rime depart from the ballad? 2) How are the elements of nature presentend

32. ## Foreign languages

I left out the following questions. Thank you. 1) What effect did Poe aim to achieve in moast of his short stories? Which theory did Poe work out in his Philosophy of Composition and who was he inspired by? 2) What are the main feautures of Poe's tales?

33. ## Math

. Jacksonville Technical College received \$3,445,553 in state aid on September 15 for the fall academic semester. The vice-president for finance decided to invest \$2,000,000 in a 2-month investment that pays 11.5% simple interest. How much interest will

34. ## precalculus

Write each expression as sine, cosine, or tangent of an angle. Then find the exact value of the expression tan 50-tan20/1+ tan 50 tan20

Complete the Consulting Project Plan. Revise and apply feedback as appropriate for Part One and Part Two. Include these revised sections in your final submission. Describe the applicable functional areas of business. Refer to your University of Phoenix

36. ## math please try this.....need it

f'(sinx)=cos^2x f'(1)=1 then f(x)=?

37. ## Foreign languages

Can you check these other sentences, please? 1) "I ate all the cake yesterday." (Peter/confess to) Shall I include "to"??? 2) Peter confessed to eating all the cake. Peter confessed that he had eaten all the cake. 3) If Iknew the answer, I’d tell you. If

38. ## chemistry

3h2+n2 makes 2NH3's if I have 4 moles of H2 instead and 2 moles of N2 would I still just say I have 2.0 or 2.7?

39. ## geometry

if i know one angle between the diagonals at intersecting point , how can i find the angle between the sides and the diagonal?

40. ## Rate measure

A balloon in the form of a right cone surmiunted by a hemispere,having a diameter equal to height of the cone,is being inflated.how fast is its volume changing w.r.t its total height 'h' when h

41. ## physics

A .035-kg bullet is fired vertically at 180 m/s into a .15-kg baseball that is initially at rest. How high does the combined bullet and baseball rise after the collicion, assuming the bullet embeds itself in the ball? Answer in meters.

42. ## geometry

find the measure of DAED for MDBEC=96 degree

43. ## precalculus

sinθ=12/13, θ lies in quadrant II. Find the exact value of sin2θ, cos 2θ, tan2θ

44. ## Algebra 1

Help me please. y=2x x+y=0 im working on solving systems by graphing. I don't know how slope work yet, right now we working on x and y intercepts. I'm Lose please help

45. ## Damon *Algebra

can you please break this equation down for me.I saw how you got 0,0 but im confusing my self on the rest of the problems such as 3x+2y=-8 2x-3y=-1 heres my answer (-2,-1) am i correct?

46. ## Math

p=80000, r=10.5, t=15, m=12

47. ## Physics

small cube of copper (density = 8930 kg/m3) is used to support a large cube of marble (density = 2560 kg/m3). The copper cube has sides of length 2.00 cm and is carefully placed on a flat, level table under the center of the cube of marble that has sides

48. ## Physics

7. A plastic cup, 15.0 cm in height, is filled to the rim with water. A small hole is punctured in the cup at a height 9.00 cm above the bottom of the cup and is allowing water to spew out. At what distance does the water land from the bottom of the

49. ## algebra 1

Marcos drove twice as far as Candice. Together, they drove 66 miles. Which equation can be used to find the number of miles Candice drove?

50. ## algebra

If an electronic circuit experiences a loss of 3 decibels with an input power of 6 watts, what would its output power be, to the nearest watt?

51. ## computer science

Can you help me break this into two clases, and Employee class and the default program class? I have to include a mutator and accessor method and provide properties for the instance variables. namespace commission { class Program { static void

52. ## chemistry

what mass NaOH is required to react exactly with 25.0 ml of 3.0 M H2S04

53. ## Calculus

Find if the limit exists. lim tan(x)/x x->0 Please show how you determined this. Thanks!

54. ## albebra

algerbraic experession the difference between five tiemes a number and two

55. ## Chemistry

To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 2.7L bulb, then filled it with the gas at 1.30 atm and 30.0 C and weighed it again. The difference in mass was 3.9 g. Identify the gas. I used Pv=nRT

56. ## MATH

A Starbucks on campus sells cappuccinos in three sizes: tall for \$2.65, grande for \$3.20, and venti for \$3.50. One morning, Brianna served 50 cappuccinos. The number of tall and venti cappuccinos, combined, was 2 fewer than the number of grande

57. ## food

children should not be served drinks in containers made of..

58. ## Organic Chemistry

A half-life of a H2O2 solution at a certain condition is 4 weeks. You have a 100 mL of 1.00M H2O2 solution. How many moles of H2O2 will be left in the solution after the following weeks? 04 weeks after: moles 08 weeks after: moles 16 weeks after: moles 20

59. ## Chemistry

A half-life of a H2O2 solution at a certain condition is 4 weeks. You have a 100 mL of 1.00M H2O2 solution. How many moles of H2O2 will be left in the solution after the following weeks? 04 weeks after: moles 08 weeks after: moles 16 weeks after: moles 20

60. ## chemistry

The disintegration of a radioisotope, such as I-131 to Xe-131, is another example of a first-order reaction. It has a half-life of 8.0 days. I-131 -> Xe-131 + e If you start with 1.40 g I-131, how many grams of I-131 will be left after the following days?

61. ## chemistry

The disintegration of a radioisotope, such as I-131 to Xe-131, is another example of a first-order reaction. It has a half-life of 8.0 days. I-131 -> Xe-131 + e If you start with 1.40 g I-131, how many grams of I-131 will be left after the following days?

62. ## Engineering Physics

You want to use a spring (k=100 N/m) to send a 500-g mass up a frictionless incline (30 degree to horizontal) to arrive at a platform 3m above the ground. How far should you compress the spring?

63. ## maths

Please help! At a cup cake baking competition, Alan baked 55 fewer cupcakes than Tom while Sally baked twice as many cupcakes as what Alan and Tom baked together. If the three of them baked a total of 1125 cupcakes, how many cupcakes did Tom bake? Many

64. ## water treatment

what is the water flow ratein a 24 in. diamiter pipe in gpm. when the flow velocity is 3.0 ft per second

65. ## Art

Is this building an example of Islamic Architecture? (The exterior mainly) Type in Notre Dame de Fontevraud on ya hoo and it should be the first link for pictures of it.

66. ## algebra

1,200 mils to inches (Round answer to the nearest tenth.)

67. ## acct

Using the Exact Interest rule, compute the interest on the following note: \$9,000 for 45 days at 23.5%. (round to the nearest cent)

68. ## Mah

A business issued a \$9000, 120-day note to a supplier which discounted the note at 9%. The proceeds are:

69. ## Algebra

32 ½ meters to feet (Round answer to the nearest thousandth.)

70. ## payroll

An employee's rate of pay is \$40.00 per hour, with time and a half for all hours worked in excess of 40 during a week. The following data are available: Allowances claimed on W-4 4 Allowance amount allowed:\$70 ea. Hours worked this week 50 Y T D Earnings

71. ## math

Pre Algebra Questions Sketch a model and obtain the sum. 3 + (-7)

Which part of speeh is the word "yellow" in this sentence? The house appeared "yellow".

73. ## physics

Why do the magnetic poles of cans reverse when turned upside down?

74. ## Physics, Angular displacement

A 20 kg sled is being pulled along a horizontal stretch of snow covered ground by a horizontal force of 30 N. Starting from rest, the sled attains a speed of 2.0 m/s in 12 m. Using the work-energy theorem, find the coefficient of kinetic friction between

75. ## Economics

The company estimates the probability of no damage to be 0.60, the probability of damage between \$0 and \$10,000 to be 0.25, and the probability of damage between \$10,000 and \$25,000 to be 0.12. If the company wants to make a profit of \$200 above the

76. ## Physics Angular displacement

A car is traveling with a speed of 25 m/s along a straight, horizontal road. Each wheel has a radius of .25 m. If the car speeds up with a linear acceleration of 2.0 m/s^2 for 6.0 s. Find the angular displacement of each wheel during this time in

77. ## soc 120

This is a reason an employer might restrict employee Internet access: (Points : 1) Employees waste too much time on the Internet. Viewing certain kinds of sites could lead to a hostile work environment. An employer can guarantee Internet access is

78. ## soc 120

5. The Ford Pinto case demonstrated that (Points : 1) it was cost-effective in the long run to allow purchasers to die. it was cost-effective in the short run to allow purchasers to die. accountants should not be trusted. the Pinto was Ford's best product.

79. ## Physics

A sunbather lying on a floating raft that experiences no friction with the water gets up and walks to the western end of the raft. While she is walking, how does the center of gravity of the system composed of her and the raft move? Why? If the mass of the

80. ## algebra

38 milliamps to amps (Round answer to the nearest thousandth.)

81. ## Math-factoring

factor 5m^2-m-20

82. ## physics

A radar installation that is used to track airplanes transmits electromagnetic radiation with a wavelength of 4 cm. Calculate the frequency of this radiation in Hz.

83. ## Art

What is the actual effect of linear perspective used in the mosaic, Madonna and Child with the Emperors Justinian and Constantine

84. ## geometry

find the center and radius of (x+8)2 + (y+4)2 =49

85. ## calculus

Hey I am working on differentiation/quotient rule for this problem...can someone help me? x^2-3/x-2.

86. ## Math

1. Write the place name for the 4 in the following number: 3,624,786 Answer: Thousand 2. Round the following number to the nearest ten: 53 Answer: 5 3. Find the sum of the following problem: 2,168 + 305 Answer: 2473 4. Estimate the sum of the following

87. ## Finance

Butler Corp paid a dividend today of \$3.50 per share. The dividend is expected to grow at a constant rate of 8% per year. If Butler Corp stock is selling for \$75.60 per share, the stockholders' expected rate of return is:

88. ## Physics

A2.0-kg piece of steel with a temperature of 70 degree C is submerged in 1.0 kg of water at 15 degree C. At what temperature does the water/metal system reach equilibrium? The specific heat of steel is 0.107 cal/(g*K). Specific Heat of water is 4185

89. ## HUMAN DISEASES

Regarding lipoproteins: A) HDL promotes coronary artery disease B) The higher the ratio of lipid to protein, the higher the density C) LDL proportionately has more protein to lipids D) LDL is promotes coronary artery disease E) none are true

90. ## Algebra

2,250 watts to horsepower (Round answer to the nearest thousandth.)

91. ## chemistry

I need to derive a net ionic equation after balancing: NA2PO4 (2-) +HI =? what I have so far is NA2Po4 +2HI = 2NAI +H3PO4 I can't get any farther but the answer is HPO4 (2-) +H =H2PO4 can someone help me with the steps?

92. ## HCA/220

Does anyone know where to find an article on the seven organizational approachs to studying thehuman body an how and when they are used in health care? It keeps pulling up essays and I don't want essay's it will be plagerism

93. ## HUMAN DISEASES

WHAT IS THE Highly sensitive blood test and marker for myocardial infarction CALLED

94. ## Science

How much heat is necessary to change 30 g of ice at -20°C into water at 20°C?

95. ## Physics

which has the greater average speed: a car that travels from milepost 35 to milepost 40 in 5 minutes, or one that travels from milepost 68 to milepost 78 in 10 minutes?

96. ## Math

How do you write eight hundred eleven thousand, four hundred fifty in standard form?

97. ## Calculus

u=-1,3 and w= 2,-5. Find the component form of the vector. 3. 2u + 3w A 0,1 B 5,-12 C 2,3 D 1,-2 E -3,8 F 4,-9

98. ## math

How much must be set aside each month at 12% annual growth compounded monthly for 30 years in order to be able to retire on \$4,500 per month for 15 years at 3% annual growth compounded monthly?