# Questions Asked onMay 18, 2012

1. ## Physics

What is the velocity at the midway point of a ball able to reach a height y when thrown with an initial velocity v0? (Assume the ball is thrown upward and that up is the positive direction. Use the following as necessary: y and g. ) Someone posted this

2. ## physics

An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. If a 19.2-V potential difference is applied to these plates, calculate the following: (a) the electric field between the plates,

3. ## math

the division of a whole number N by 13 gives a quotient of 15 and a remainder of 2. Find N.

4. ## physics

An airplane with a mass of 1.2 x 10^4 kg tows a glider with a mass of .60 x 10^4 kg. If the airplane propellers provide a net forward thrust of 3.6 x10^4 N, what is the acceleration of the glider?

5. ## Chemistry

The pH of a solution is 1. Which of the following statements are also true for the solution? (Select all that apply.) It will change the color of red litmus to blue. The concentration of hydronium ion is equal to the concentration of hydroxide ion. The

6. ## Physics

A runner of mass 51.5 kg starts from rest and accelerates with a constant acceleration of 1.35 m/s2 until she reaches a velocity of 5.7 m/s. She then continues running with this constant velocity. (Take the direction the runner is going to be the positive

7. ## algebra

The product of the page numbers on two facing pages of a book is 110. Find the page numbers. the page numbers are:

8. ## algebra.

A rectangular is six times as long as it is wide. If the area is 54 ft^2, find the length and the width of the table.

9. ## math

M and N are the midpoints of the sides of a square. What is the ratio of the area of triangle AMN to the area of the complete square?

10. ## Math

Question 2 For the function f(x) = 3x2-2x-7, find f(2). Answer f(2) = 13 f(2) = 25 f(2) = 1 f(2) = 1/2 3 points Question 3 One day you work 3 hours and your boss gives you \$22. Another day after working 4 hours your boss gives you \$33. Yesterday after

11. ## database management

2. Given the following business scenario, create a Crow’s Foot ERD using a specialization hierarchy if appropriate. Tiny Hospital keeps information on patients and hospital rooms. The system assigns each patient a patient ID number. In addition, the

12. ## Physics

A bullet is fired through a board 12.1 cm thick, with a line of motion perpendicular to the face of the board. If the bullet enters with a speed of 375 m/s and emerges with a speed of 205 m/s, what is its acceleration as it passes through the board? (Take

13. ## Statistics

Which of the following statements best describes the uncertainty associated with a 95% confidence interval for a population proportion, computed from a simple random sample? A. We don't know whether the particular confidence interval is successful or not,

14. ## English

"I have but one lamp by which my feet are guided; and that is the lamp of experience." This is an example of a. an appeal to authority b. allusion c. conceit d. logic C? Thanks

15. ## Math

If a family has 4 children, in how many ways could the parents have 2 boys and 2 girls as children?

16. ## algebra

There are n teams in a league and the number of games played is given by the polynomial n^2-n=N. A women's softball league has 12 teams. What is the total number of games to be played?

17. ## Physics!!!!

A 78 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.4m/s. v=7.7m/s If the trampoline behaves like a spring of spring constant 5.6×104 N/m , how far does he depress it?

18. ## Math

Two sides of rectangle are 20 cm &10 cm. They are increased in ratio 2:3 & 3:7 . Find the percentage increase in its area?

19. ## ENGLISH 11

Identify which of the following events was NOT a major influence of the Modernist writers. *Great Depression *World War I *World War II (i thought it would be the Harlem renaissance but its not a answer choice.)

20. ## algebra

plz solve factor trinomial a^2+10a+16

21. ## Trig

Find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s.? Radius, r=16 ft Arc length, s=10 ft

22. ## CHEMISTRY

Consider the following cell: Pt|H2(g, 0.130 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 0.90 V at 25 °C and the standard reduction potential of the Ag /Ag half-reaction couple is 0.80 V, calculate the hydrogen ion

23. ## physics

a 12 Volt car battery supplies 1.0 x 10^3 C of charge to the starter. How much energy is used to start the car? ( it's not 10 cubed, but 10 to the third power)

24. ## Physics

An electric drill operates at a potential difference of 120V and draws a current of 1.5 Amps. If it takes 50 seconds to drill a hole in a piece of steel,calculate the amount of electrical energy used by the drill in that time.

25. ## chemistry

A 150-mL sample of a .600-mol/L calcium nitrate solution is mixed with a 1.00L of .500-mol/L NaOH(aq). Calculate the mass of precipitate produced in this reacton.

26. ## rate of change

Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x passes through the x-axis at 45°. He also determines the instantaneous rate of change at x = 0, π, and 2π by inspection.

27. ## chemistry

KMnO4 + H2SO4 + KNO2---> MnO2 + KNO3 + K2SO4 + H2O

28. ## Math

A bag contains 4 green marbles, 6 red marbles, and 2 white marbles. Three marbles are drawn at random with replacement. With replacement means that after a marble is drawn, it is replaced before the next one is drawn. Find the probability of all three

29. ## ALGEBRA

Find the APR for the following loan (monthly payments). (Round your answer to the nearest full percent.) Purchase a refrigerator for \$2,100 at 20% add-on interest for 3 years.

30. ## Science

Ethene gas (C2Ha) reacts with oxygen to form carbon monoxide and water. Write a balanced equation for this reaction, then find the mole ratios of substances on each side of the equation.

31. ## World History

What Are The Causes of The Renaissance?

32. ## c++

Write a program that asks the user to input a grade that he or she received on an exam. The grade is an integer from 0 to 100 inclusive. The program should convert the numeric grade into the equivalent letter grade. Do the conversion by using a function

33. ## Chemistry

in a blast furnace, iron(III) oxide is used to produce iron by the following (unbalanced) reaction: Fe2O3 + CO = Fe + CO2 a. if 4 kg Fe2O3 are available to react, how many moles of CO are needed?

34. ## chemistryy

The reaction between 34.0 g of NH3 and excess oxygen gas produces 45.9 g of NO gas and some water. Determine the percent yield.

35. ## chemistryy

The reaction between 34.0 g of NH3 and excess oxygen gas produces 45.9 g of NO gas and some water. Determine the percent yield.

36. ## science

in shell and tube type of condenser, the flue gas mixture of acetaldehyde,oxygen and nitrogen at 17391.17Kg/hr enters to the condenser at 75 degree celcius and leaves at 20 degree celcius,while the cooling water enters at 17 degree celcius and leaves at 37

37. ## math

The base of a triangle is 5cm greater than the height. The area is 52cm^2. Find the height and length of the base.

38. ## algebra

help; factor with wrong answer s^2+10s+25

39. ## Calculus AB

Find the derivative of f(x) = 1/x(27,000,000/pi + 6,750,000) + 20pix^2 Can someone help me with this? Thanks.

40. ## accounting

What is included in the cost basis of a long-lived asset? Explain for at least two types of such assets.

41. ## accounting

What sources are reliably used to estimate an asset's useful life?

42. ## Statistics

In a poll of 1,000 adults, 57% believed that there was too much inappropriate content on TV. A 95% confidence interval for the proportion is given as 0.54 to 0.60. What is the margin of error of this poll? A. 0.54 B. 0.015 C 0.03 D. 0.57

43. ## Statistics

A Gallup Poll reported the percentage of Americans who approve of the President's job performance was 47% with a margin of error of 2 percentage points. What is a 95% confidence interval for the population percentage? A. 41% to 53% B. 45% to 49% C. 46% to

44. ## Pre-Calculus

Hello! I'm stuck on how to do this problem and would appreciate some help! Choose a non-zero complex number c for f(z) = z2+ c. Find a complex number v that is in the escape set. Find a complex number w that is in the prisoner set. Graph the first five

45. ## Statistics

1000 scientists create 95% confidence intervals for parameters of interest. If they all compute the confidence intervals correctly, how many of the intervals would we expect to contain the true population parameter? A. 950 B. 0 C. 95 D. 1000

46. ## Statistics

From random sample of 200 college students, 40 students indicated that they smoke cigarettes. Use the information from the sample to calculate a 95% confidence interval for the population proportion of college students that smoke cigarettes (round to

47. ## E&M Physics

Hello, I have this number where I don't understand why there's a negative sign to it. Consider a closed triangular box resting withing a horizontal electric field of magnitude E = 7.8 x 104 N/C as shown here. Calculate the electric flux through (a) the

48. ## Statistics

A researcher found a sample proportion of 0.94 for estimating the population proportion of freshmen at a university who had Facebook accounts. If the standard deviation of the sampling distribution of the sampling proportion is 0.02, what is a 95%

49. ## AlgebraB

I have somemultiple choice questions that I need help with. Question 1 Find the measure of

50. ## Computer

On a laptop, how do you get the 10 to the 3rd power? ( make a small 3 after the 10?)

51. ## English

Which of the following represents an appeal to the head? a. "We are apt to shut our eyes against a painful truth, and listen to the song of that siren, till she transforms us into beasts." b. "Has Great Britain any enemy, in this quarter of the world, to

52. ## math

A cone shaped container with its vertex at the top and its circular base on the ground is filled to 3/4 of its height with water. What fractional part of the container is filled with water?

53. ## math

Adrienne had a pizza party at a local arcade. She spent for pizza and per person for games. Let c be the total cost of pizza and games, and let p be the number of people at her party. Write an equation to represent the problem. Which is the dependent

54. ## math

the new gymnasium being built at IS61 is a square with an area of 3,600 square feet. What are the dimensions of the gymnasium?

55. ## economics

How can I determine if two goods are in the same market or market segment? I am not sure how to determine if they have the same demand curve. For example I need to determine if a movie rented from Redbox is or is not in the same market as a movie seen at a

56. ## math

find equivalent expression without using parentheses -(7x-6y+6z)

57. ## graphing trig functions

for graphing basic trig functions such as y=2sinx or y=1/3cosx, how do you know what the points are to graph with out using a calculator?

58. ## English

1. I would be glad to go with you. 2. I would be glad if I could go with you. 3. I would be glad if I went with you. (Does #1 mean #2 or #3?) 4. To watch him play basketball, you would think him a pro player. 5. If you could watch him play basketball, you

59. ## math

square ABCD has the centers of 4 equal circles as its vertics. Find the shaded area

60. ## math

K bought some marbles and gave half of them to L. bought some stamps and gave half of them to K. K used 5 stamps and L gave away 11 marbles. The ratio of the number of stamps to the number of marbles K had left then became 1:7 and the ratio of the number

61. ## chemistry

calculate grams of potassium bromide dissolved in 50 grams of water at 0 celcius

62. ## social studies

what was the cause of the american revolution of 1776 the french revolution of 1789and the Russian revolution in 1917

63. ## math

Five years ago, you bought a house for \$151,000, with a downpayment of \$30,000 which meant you took out a \$121,000 loan. Your interest rate was 5.75% fixed. You would like to pay more on your loan. You check your bank statement and find the following

64. ## English

Seven letter word fifth letter e and seventh letters s

65. ## language arts

I need to do an essay in a language arts package titled noggin. I lost the essay part of it. I'm not asking for you to do an essay for me, but if you could put up the page so I know how to make the Picture look that the essay goes in. I need to have it in

66. ## Math

The circumference of the front tire is 6ft. How many complete turns does the front wheel make in 30 ft driveway?

67. ## Physics

An electric immersion heater is rated 5 A when connected to a 120V circuit. What is the resistance of the heater? If it takes 168 KJ to heat 500 ml of water from 20 deg C to boiling, how long does it take to heat the water?

68. ## english

A major difference between today’s Hispanic and past European immigrants is that— (1 point)for Hispanics, the old country is only two hours away. European immigrants were all light-skinned. Hispanics are willing to take jobs Americans don’t want.

69. ## statistics

In a survey of 400 college students, 40 were left-handed. Treating the sample as if it were random and using 0.015 as the standard deviation of the sampling distribution of the sample proportion, what is the lower bound of a 95% confidence interval for the

70. ## physics

1.)A radio station transmits waves of length 400m.if the speed of the waves is 3*10power8m/sec,find the frequency of the radio station. 2.)Audible range of frequencies is between 20Hz and 20KHz.Find the range of the wavelengths corresponding to these

71. ## physics

1.)A rock at the blank of a coast is struck by water waves.find the frequency of the waves striking the rock,if the distance between two consecutive crests or troughs is 100m.velocity of water wave is 150m/sec. 2.)the timeperiod of a vibrating body is

72. ## Find x in combine function

Given the functions f(x)=sqrt[x] and g(x)=x+1, determine all possible values of x for which f(g(x)) = g(f(x)). Show steps please, thanks a lot!

73. ## chemistry

determine the amount in grams of H2SO4 required to make 3.0L of 1.15M Nacl

74. ## Moanalua Middle School

One box contains six color cards: two blue, three yellow, and one orange. Another box contains four number cards, numbered 1, 2, 3, and 4. One card is picked at random from each box with replacement. find the probability of blue, then 1.

75. ## gen chemistry

final volume obtained when a 1.5M KOH solution is dilued to 1.25M

76. ## gen chemistry

calculate the percent m/v concentration of a 5L solution containing 500g NaCl

How many 20kg bags of flour can a 20x8ft container accomodate?

78. ## Physics

A circular shop sign of mass 10kg is to be hung from the wall of the shop. The sign hangs from a light, rigid horizontal support of length 0.48m that is hinged to the wall at one end A. The other end B of the support is attached by a model string to a

79. ## chemistry

the particles protons and neutrons present in atomic nucleus are known as......

80. ## English

Which technique of speeches does Franklin use in this passage? From such an assembly can a perfect production be expected? A. restatement B. repetition C. rhetorical question D. parallelism

81. ## chemistry

what is reason for the different atomic masses of the isotopes of an element

82. ## physics

An ideal gas with r(Gama) = 1.5 occupies a volume of 2.0 L. The gas expands isothermally to a volume of 3.0 L. Alternatively, the gas reaches the same final state by first adiabatically expanding to the final volume then heating isochorically to the final

83. ## ALGEBRA

Find the future value, using the future value formula and a calculator. (Give your answer to the nearest cent.) \$44.01 at 6.5% compounded semiannually for 2 years

84. ## physics

why is water tube produces the noise while pumping ground tank to upper tank at 6th flour ?

85. ## ALGEBRA

If \$695 is invested in an account that earns 21.75%, compounded annually, what will the account balance be after 15 years? (Round your answer to the nearest c

86. ## Moanalua Middle School

One box contains six color cards: two blue, three yellow, and one orange. Another box contains four number cards, numbered 1, 2, 3, and 4. One card is picked at random from each box with replacement. find the probability of yellow, then less than 4.

87. ## MATH

a parabola passes via the points (1.5,1) and (3,-5). given that the vertex lies on the line 7x+3y-4=0,find the focus and the equation of the parabola

88. ## ALGEBRA

Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. Assume 365 days in a year. (Round your answer to the nearest cent.)

89. ## ALGEBRA

Determine the comparable interest rate for a \$80,000 loan when the quoted information is 12.1% + 0.5 pt + \$300. (Round your answer to two decimal places.)

90. ## Physics

A bus goes over the crest of a hill at 10 m/s and the radius of curvature of the hill is 15 m. Determine the force exerted by the car seat for a man of 75 kg. At what speed would you become weightless

91. ## geometry

find the perimeter and area of a right triangle if the shortest side is 20m and the longest side is 29m. Include correct units with your solution.

92. ## Calculus

HOw do I find the domain of f(x)= x^2+3x+5?

93. ## english

Which word is closest in meaning to “impediments”?

94. ## math

how many feet are in 96 inches

95. ## critical thinking

utilizing the seven factors of the utilitarian calculus briewy evalute each factor comparing dropping the bombs on Japan versus invading Japan to end world war II

96. ## math

Records from buzz's sawmill show that workers have a 0.02 probability of losing an arm and a 0.03 probability of losing a leg in a year. What is the probability that a worker does not lose an arm? What is the probability that worker does not lose and arm

97. ## World History

Important major achievements of the sumerians civilization? Anyone Could Help Me Please

98. ## algebra 2

You and your friend are both knitting scarves for charity. You knit 8 rows each minute and already have knitted 10 rows.Your friend knits 5 rows each minute and has already knitted 19 rows. When will you both have knitted the same number of rows?

99. ## geometry

a square has a diagonal with length 14 mm. Find the perimeter of the square.

100. ## Chemistry

If a gas has a volume of 500 ml and pressure of 1.5 atm, what will the pressure be if the volume is reduced to 250 ml?

101. ## Math

How do you simplify the square root of c raised to the 15th (sqrt(c^15))?

102. ## Chemistry

How many moles of methanol are dissolved in 1.5 L of water to make a 2.0 m solution?

103. ## Math

Factor the polynomial completely. 6x^3 + 36x^2 - 240x

104. ## science (physics)

A chairlift carries skiers to the top of a ski hill. If the chairlift does 180 kJ of work in 15s, what is the power of the chairlift?

105. ## Physics

A runner of mass 51.5 kg starts from rest and accelerates with a constant acceleration of 1.35 m/s2 until she reaches a velocity of 5.7 m/s. She then continues running with this constant velocity. (Take the direction the runner is going to be the positive

106. ## Math

A bag contains 4 green marbles, 6 red marbles, and 2 white marbles. Three marbles are drawn at random with replacement. With replacement means that after a marble is drawn, it is replaced before the next one is drawn. What is the probability of not green,

107. ## Physics

An object is thrown upward with a speed of 21.5 m/s. How high above the projection point is it after 2.06 s?

108. ## Physics

An object is thrown vertically and has an upward velocity of 5 m/s when it reaches three fourths of its maximum height above its launch point. What is the initial (launch) speed of the object?

109. ## Physics

An object is thrown vertically and has an upward velocity of 5 m/s when it reaches three fourths of its maximum height above its launch point. What is the initial (launch) speed of the object?

110. ## Math

Mr Gopal left 3/10 of his fortune to his wife. Of the remainder, 1/10 was donated to charity and the rest was distributed among his 4 children , A , B , C and D in the ratio of 4:3:3:2 . If \$63000 was given to charity, calculate (a)the amount received by A

111. ## life orientation

discuss 5 way in which the flood impact on the community.provide relevant sources to support you claim

112. ## algebra

factor trinomial w^2-15w+56