# Questions Asked onJune 13, 2010

1. ## physics

What is the tension in the rope of this figure description? 60 kg person is hanging in the air on a rope attached to a pulley, with a 100 kg mass attached on other end that is touching the ground.

2. ## College Physics

A hockey puck B rests on frictionless, level ice and is struck by a second puck A, which was originally traveling at 40.0 m/s and which is deflected 30 degrees from its original direction. Puck B acquires a velocity at a -45 degree angle to the original

3. ## Chemistry

The burning of the magnesium becomes uncontrolled (it burn brightly. Oops! How will this procedural error affect the reported mole ratio of magnesium to oxygen in the analysis? Explain.

4. ## math

ginny baked a delicious apple pie. john ate 1/4. then aldo ate 1/2 of what was left. how much pie was left over

5. ## chemistry

A flask containing 5.00mL of 3 M HCl solution requires 14.45mL of 1.00 M NaOH for titration. How many moles of HCl are present in the solution? The density of 3 M HCl is 1.05g/mL

6. ## Math

Which one is smaller 5.8x10^-3 or 4.5x10^-3

7. ## world history

I need help with determining which one, out of the three interpretations of the Renaissance is the most reasonable 1. Renaissance was a rebirth of ideas after centuries of cultural stagnation. New way of understanding the world had emerged and it looked

8. ## Chemsitry

At 25 °C, only 1.9 g CaSO4 (MM = 136 g/mol) will dissolve in 2.00 L of water. Write the equilibrium expression and calculate the equilibrium constant for the reaction below. CaSO4 (s) ⇋ Ca2+ (aq) + SO42- (aq)

9. ## physics

A 25 kg box slides, from rest, down a 9-m-long incline making an angle 15 degrees with the horizontal. The speed of the box when it reaches the bottom of the incline is 2.40 m/s. (a) What is the coefficient of kinetic friction between the box and the

10. ## TO Ms. Sue

If you have do english tutoring, when you have a chance can you review my "English 10 HELP" posting please? Writeacher helped me but he said to post the answers I chose so someone could check them and help me further.

11. ## Accounting

Hess, Inc. sells a single product with a contribution margin of \$12 per unit and fixed costs of \$74,400 and sales for the current year of \$100,000. How much is Hess’s break even point?

12. ## Math

Multiply or divide and write scientific notation for the result. (7.66 • 10^2)(6.29 • 10^-4) can someone please help me with this.

13. ## Algebra

15. A boat travels 30 miles upstream in 4 hours. The trip downstream takes 2.5 hours. Find the rate of the boat in still water. 33. Solve the following: (q + 2)^2 = 25 34. Solve the following: y^2 + 6y + 9 =49 39. How many real roots are there for the

14. ## stat

A test is composed of six multiple choice questions where each question has 4 choices. If the answer choices for each question are equally likely, find the probability of answering more than 4 questions correctly

15. ## college

what aspects of the social and work environment in a fast-food restaurant would be of particular interest to a sociologist because of his or her sociological imagination?

16. ## Managerial Accounting

Gladmark company produces two types of get well cards scented and regular drivers for the four activities as follows: Scented Regular Inspection hours 40 160 Set up hours 50 50 Machine hours 200 600 Number of moves 225 75 1. Calculate the consumption

17. ## Managerial Accounting

Tiger Golf Accessories sells golf shoes, gloves and laser-guided range finder that measures distance Below are unit cost and sales data. Shoes Gloves Range find Unit sales \$100 \$30 \$250 Unit VC 60 10 200 Unit CM \$40 \$20 \$50 Sales Mix 40% 50% 10% Fixed cost

18. ## french

How can I say "I don't know how to answer that question." in french? I wrote: Je ne sais pas comment reponds a cet question. I don't feel like that is correct, can someone help me?

19. ## English

1. No boy is faster than me in my class. 2. No one is faster than me in my class. 3.No boys are faster than me in my class. 4. Nobody is faster than me in my class. 5. Noone is faster than me in my classl. (Which ones are correct and commonly used?)

20. ## Sci

My hypothesis for "Can Water Be Split Into Hydrogen and Oxygen?"

21. ## Chemistry

Vinyl chloride (H2C=CHCl), the starting material from which PVC polymer is made, has a Henry's-law constant of 0.091mol/(L.atm) at 25 C. What is the solubility of vinyl chloride in water (in mol/L) at 25C and a partial pressure of 0.90 atm? Thank you in

22. ## RE English 10 HELP

I posted these questions earlier for help and Writeacher wanted me to post what I chose as answers so someone could check/help me. * is the answer I chose. 2.)Your answer is incorrect. You are a careless person. Faulty Cause and Effect *Stereotype Red

23. ## statistics

Let’s assume you have taken 100 samples of size 36 each from a normally distributed population. Calculate the standard deviation of the sample means if the population’s variance is 25.

Read the following statements and then determine whether they are facts, unsound opinions, sound opinions, or authoritative opinions. Select the correct answer for each statement. Are any of these correct/incorrect? If so please help. 1.)Due to Einstein's

25. ## chemistry

A chemical problem may be presented to you in units of moles, mass, or volume. Which one of these can be directly used in arithmetic no matter what the conditions are?

26. ## chemistry

the particles in which sample of LiCl(s) have the same average kinetic energy as the particles in a 2.0-mole sample ph H2O(l) at 25 degrees?

27. ## college

is project management designed to transfer power from the line managers to the project manager?

28. ## physics

Dynamics question please help i am stuck...! A model helicopter of mass 5.0 kg rises with constant acceleration from rest to a height of 60 m in 10 seconds. Find the thrust exerted by the rotor blades during the ascent

i need help in social studies my finals are tomorrow and i need to know some answers such as how are native americans able to live successfully in any culture groups I NEED MY ANSWER ASAP PLEASEEEE

30. ## math

ginny baked a delicious apple pie. john ate 1/4. then aldo ate 1/2 of what was left. how much pie was left over but the anser it 3/8

31. ## Chemistry

Predict whether the Ph endpoint is =7 >7, or

32. ## Sci

Whats My hypothesis for "Can Water Be Split Into Hydrogen and Oxygen?"

33. ## math

if x is a positive integer, which of the following cannot be the units digit of 7^x? a) 1 b) 3 c) 5 d) 7 e) 9 and why?

34. ## Algebra

Evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 0 and 1, and at x=1. Show your work. y=log7 x

35. ## basic accounting edit plz

STEVENS REALTY Paid \$300 to send employees to realtor's workshop. is it: Salaries Expense (DEBIT) Cash (CREDIT) OR Salaries Expense (DEBIT) Salaries Payable (CREDIT)

36. ## Geometry WP

Robert has a rectangular garden that is currently 195 and has a perimeter of He wants to increase the size of his garden by 4 ft in both directions. What will be the area of his expanded garden? A) 112 B) 323 C) 72 D) 780

37. ## English 10 Check

Below, you will find a list of sentences. After each sentence, select true if the topic of the statement is suitable to form the basis of a single persuasive paragraph. If the topic of the statement in your textbook is unsuitable for a single persuasive

38. ## To DrBob222

The math symbols are very easy to make, although they are not very user-friendly. Basically, we can type the & sign, immediately followed by a # sign and then the unicode number in decimal (as opposed to hexadecimal), and terminated with a ;. For example,

39. ## chemistry

A beaker contains 250.0 mL of a 1.00 M HCl solution. How many moles of the acid would remain in the solution after 0.199 moles of HCl are neutralized?

40. ## English 10 HELP

I don't understand this at all! 1.)Supermodel Tyra Banks uses Smooth & Soft bath gel; you should, too! Faulty Cause and Effect Stereotype Red Herring Either/Or Thinking Bandwagon Testimonial 2.)Your answer is incorrect. You are a careless person. Faulty

41. ## geometry

a bug lives on a corner of a cube and is allowed to travel only on the edge of the cube. in how many ways can bug visit each other of the other seven corners once and only once, returning to its home corner only at the end of the trips?

42. ## geometry

9. In parellelogram MRST, m

43. ## English 10 Check

Someone please check! * is the answer I chose. For each of the following pairs of topics select the one that is more focused. 1.)Topic. a.)Why beaches are fun *b.)Why I love Miami Beach 2.)Topic. a.)The wonderful world of vegetables *b.)The health benefits

44. ## kaplan

A recipe for a cake calls for two thirds of a cup of chopped nuts. Find a number of cups of nuts needed for nine cakes.

45. ## Chemistry

A 25.00 mL sample of KNO3 solution was diluted to 1.00X103 mL. The concentration of the final solution is 0.00383 M. Calculate the concentration of the original solution?

46. ## accounting

Fundamental Accounting Princples Problems 5-A, 6-1A, 6-6B,and 6-7B hope you can help ,desperate

47. ## Computer

Need an example of open loop control system and a closed loop system.. Not really understanding the concept of it..

48. ## algebra 2

add. (4x power of 2xy+y power of two)(-x power of two - 3 xy+4y power of two)= help please

49. ## algebra

(x power of 6-12x power of 3+35)divide)x power of 3- 7) i dunno what to do

50. ## math

RATES OF CHANGE QUESTION A spherical balloon is being blown up so that its volume is increasing by 0.6 m^3 s^-1. Find the rate at which the radius is increasing when the radius is 0.1 m. So what I did was that I determined dV/dt =0.6 and dV/dr = 4/3 r^3

51. ## Math

I need help with these problems for a test. 1. Find the inverse of the one-to-one function. f(x)=5x+1/4. 2. The height of the water, H, in feet, at a boat dock t hours after 7 am is given by E=7+4.4cos pi/35 t, where t is time measured in seconds. Find the

52. ## algebra2

simplify 9 power of two= 9-power of two= (one nineth) power of two= (one nineth) - power of two= -9 power of two= (-9) power of two = help please

53. ## Calculus II

1) Compute the indefinite integral: integral 2x ln(x^2 - 8x + 18) dx 2) Note that x^4 + 1 = (x^4 + 2x^2 + 1) = (x^2 + 1)^2 - (sqrt2x)^2 ... use this trick to compute the following indefinite integral as an elementary function (with exact coefficients).

54. ## Geometry WP

While in Europe, Allison heard a weather forecast that said the temperature would be 22°C (this is about 74°F). Give a rule that could give Allison an easy way to convert from Celsius to Fahrenheit

55. ## Calculus

I am having difficulty with finding the implicit differentiation of the equation x sqrt of y+1=y sqrt of x+1. Can any body help me out? Thanks in advance.

56. ## psych 220

Whether children are exposed to an authoritative, authoritarian, or permissive parenting style may have a great influence on how children handle challenges in their lives. · Describe how three adults, each brought up under a different parenting style as a

57. ## Algebra

Is this correct? Evaluate the exponential equation for three positive values of x, three negative values of x, and at x=0. Show your work. Use the resulting ordered pairs to plot the graph; y=(1/4)^x+3 x = -1, y = 7 x = -0.5, y = 5 x = 0, y = 4 x = 0.5, y

58. ## English

Flip the coin. If you get heads, move one space/step/circle forward. If you get tails, move two spaces/steps/circles forward. -There are circles on the board. In each circle, there is an expression or a piccture.- (Are they correct? By the way, which side

59. ## geometry

a bug lives on a corner of a cube and is allowed to travel only on the edge of the cube. in how many ways can bug visit each other of the other seven corners once and only once, returning to its home corner only at the end of the trips?

60. ## geometry

14.Use the information given to determine the equation of each line. a. the slope of the line is 4/3 and its y-intercept is -2 b.the line perpendicular to the line y=-2x+5 and passing through the point (-2,6)

61. ## Chemistry

Balance the ewuation using thr oxidation number method Here is what i did Au+ + H20---> Au2O3 + Au + H+ Au+ losses 3e- to form Au2O3-->oxidation Au+ gets reduced to for Au therefore the balanced chemical equation is 3Au+ + 3H20---> Au2O3 +Au +6H+ Does it

62. ## History The Great Wall of China

I have been researching this question for a while and keep coming up with different answers. Can anyone shed some light on this question, please? What is the height and length of the Great Wall of China?

63. ## com 220

Now that you have finished your research paper, what advice would you provide for students starting this course? What would you do differently if you were just starting the course? On what would you focus more? On what would you focus less? Explain your

64. ## Mat 116

-2x>1/9 {xix_ _}

65. ## algebra 2

im supposed to multiply this one (y to the power of 2-3)(5ypower of 2-2y+2)=

66. ## Geometry

A spherical storage tank has a diameter of 48 ft and is full of water. How many delivery trucks with cylindrical tanks measuring 8 ft in diameter and 10 ft long can be completely filled from the storage tank? A) 230 trucks B) 115 trucks C) 86 trucks D)

67. ## math

if t is 30% of u and u is 6% of v, what percent of v is t?

68. ## math

In November, a toy was \$40.00. In Dec., the price increased by 80%. In Jan., the price decreased by 80%. What was the price of the toy after it was discounted in January?

69. ## math

Choose the better value - 5 kg of birdseed for \$6.50 or 8 kg for \$10.80?

70. ## physics

I'm having trouble with question 2, please help The velocity of an object in simple harmonic motion is given by v(t)= -(0.275 m/s)sin(23.0t + 2.00π), where t is in seconds. 1) What is the first time after t=0.00 s at which the velocity is -0.100 m/s? 2)

71. ## math

solve and grapgh 4-4x > 16 and 6x-1 > 11

72. ## Algebra

Please help! Evaluate the exponential equation for three positive values....? Evaluate the exponential equation for three positive values of x, three negative values of x, and at x=0. Show your work y=(1/4)^x+3

73. ## Math/209

How do I find the set of all points of y=-8 on a graph?

74. ## algebra

d=3t-2, can you please list the independent variable, slope and y- intercept even though the variables are different?

75. ## Algebra

Which job would be better? One that has a salary where the mean and median are close OR one where the salary of the mean and median have huge gap (like mean 36,000 and median 20,000)

76. ## Algebra

How would I find the coordinates of point A? If the diagonals of a parallelogram EFGH intersect at pointA. Would I take the coordinates of E and G and then put it into the equation: (x1+x2)/2 ,(y1+y2)/2 ?

77. ## algebra

solve the systems of equations by graphing 2x-y=1 8x-4y=+8

78. ## English

1. If you like swimming, this house will be perfect for you. Then, please call at 731-1234. 2. If you are interested in swimming, this house will be great for you. Then, please call me at 731-1234. 3. If you love swimming, this house will be fantastic for

79. ## geography

sramcgin, thanks for your help. you are a very funny person though. i couldn't find the most eastern and western physiographic region in canada? in the last ice age ,how many glacial advances? the process that formed the rocky mountains and the

80. ## geometry

in circle O, ARC BC = 90 and the area of triangle is 18 what is the length of line AC

81. ## chemistry

what two kinds of heat changes water's form?

82. ## algebra 2

(3x power over 2-7x+11)+(6x power over 2+9x-81)= i know i supposed to add this but that's all i dunno what to add and not to add

83. ## english

what is the sypmbol of freedom? is it the white dove? just want to know for my poster im doing

84. ## Physics

How do you calculate error analysis? For example; 200 +- 5% Please explain if possible

85. ## math

if qrs/r=s what must be true?

86. ## Education Aed/200

Looking for some credible sources to create an argumentative paper on the topic below. Topic: Should today's education be relevant to tomorrow's job market? My point of view: I think that integrating work experience into a curriculum is an asset to

I need to know at least three strategies that organizations can use to be more responsive to the needs of their customers and more competive in today's business environment. Can somebody give me some advise about were to find this?

88. ## Algebra

Please help! Evaluate the exponential equation for three positive values....? Evaluate the exponential equation for three positive values of x, three negative values of x, and at x=0. Show your work y=(1/4)^x+3

89. ## chemistry

how do you calculate the molaarity of a water solution of CaCl2, given that 5.04 L of the solution contains 612 g of CaCl2.

90. ## geography

the native people originally come from? the ethnic ground that settles on praires is? the process that is formed on rocky mountains and appalachians? tha most valuable catch in the pacific is? the most eastern and western physiographic region is? the two

The acquisition cost is \$35,000 paid at the time of installation. It reduces the wait staff by one person: Figure \$10 per hour, or 2020 hours per year + 18% benefits. Money costs are 7% .The system may become obsolete in three years.

92. ## social studies

i need the answer too what discoveries did christopher columbus find during his exploration

93. ## math

simplify (8a2 b5)(-7a3b)

94. ## child care

I'm doing a lesson plan on diversity for pre-school children and i was wondering what it means when it says sensory expirences?

95. ## Algebra

Is this correct? Simplify. Log7 7^5 Answer=5

what is meant by " interactive-passive" distinction

97. ## math

if qrs/r=s and q=0 what must be true?

98. ## Communication Studies

What are some social progresses of people living in the margins of society in the United States today? Please provide three examples.

99. ## precalculus/algebra

simplify the expression: 6x(2x+1)^1/2+3x^2(2x+1)^-1/2

100. ## Calculus I - Limits

How do I find lim x-> infinity √(x^2 + x) - √(x^2 - x)

101. ## basic accounting!plz help!

STEVENS REALTY Paid \$300 to send employees to realtor's workshop. is it: Salaries Expense (DEBIT) Cash (CREDIT) OR Salaries Expense (DEBIT) Salaries Payable (CREDIT)

102. ## PreAlgebra

Write an equivalent expression using negative exponents. 1/3^9 will i write this as 3^-9. please explain this to me.

103. ## LIT210

Create an 8- to 10-slide PowerPoint® presentation addressing one of the following three topics by comparing, contrasting, and evaluating the themes, writing styles, and uses of dramatic devices and conventions in Oedipus Rex and A Raisin in the Sun. o

104. ## PreAlgebra

Convert to decimal notation. 3.73 • 10^-4= -37300 Im not good with intergers. I just needed to know if this was correct. If not can someone explain it to me.

105. ## algebra 2

i cant figure out how to solve this? T with two over powe +7T-18+0 so far if figure out T+ but i dunno what

106. ## geography

How does the geographic location of a place impacts the way people live and work?

107. ## geography

is the most eastern and western physiographic region the great lakes and st. lawrence low lands.

108. ## Government

I'm rather confused about the whole Social Security may go bankrupt thing...since our nation is \$14+ trillion dollars in debt, why would Social Security benefits stop if money runs out, since we borrow for everything else?

109. ## algebra 2

simplify (4f power of 7)power of four is it f power of 8?

110. ## Science

what tells you whether a solution is basic or acidic?

111. ## Science

what is a flat area where drainage is slow?

112. ## algebra

ã x + 7 = 2 ã x or sqrt x + 7 = 2 sqrt x a) {3/7} b) {0} c)none d) {7/3}

y = 2x^2 I am to decide if this is a linear, quadratic or exponential function. I chose that the above function is quadratic. Am I right?

114. ## geometry

Use the information given to determine the equation of each line. a. the slope of the line is 4/3 and its y-intercept is -2 b.the line perpendicular to the line y=-2x+5 and passing through the point (-2,6)

115. ## algebra

a. Suppose a market research company finds that at a price of p = \$20, they would sell x = 42 tiles each month. If they lower the price to p = \$10, then more people would purchase the tile, and they can expect to sell x = 52 tiles in a month’s time. Find

116. ## algebra

1570536900 x 3966.848485^-2 =

117. ## algebra 2

ok supposed the base of a triangle is 5 cm greater than the height the area is 52 cm what is the height and length at the base?

118. ## algebra

find the distance between (2/3,4) and (5/3,7) a)3.16 b)4.24 c)3.46 d)10.06

119. ## algebra2

another one i don't get. the number N im millions of hearing impaired individuals of age X can be approximated by n=0.00006x by power of two+0.0006x power of two-0.1x+1.7 approxmate to the nearest millions the number of hearing impaired individual for ages

120. ## question

who gets to decide if you go to summer school?

121. ## CHEMISTRY

EXPLAIN THE CHEMICAL COMPOSITION OF BOTH SIDE OF THE EQUATION BELOW 3CaSO4+2ALCL3= 3CaCL2+AL2(SO4)3

122. ## UOP

necessary to perform a check?

123. ## algebra

Solve the equation 3X +1 = 5

124. ## CHEMISTRY

EXPLAIN THE CHEMICAL COMPOSITION OF BOTH SIDE OF THE EQUATION BELOW NUMERICALLY WITH INTERGERS 3CaSO4+2ALCL3= 3CaCL2+AL2(SO4)3

125. ## CHEMISTRY

EXPLAIN THE CHEMICAL COMPOSITION OF BOTH SIDE OF THE EQUATION BELOW NUMERICALLY WITH INTEGERS 3CaSO4+2ALCL3= 3CaCL2+AL2(SO4)3

explain the operational components of planning, sourcing, making, and delivering applied in supply chain management

127. ## french

How would I say the word "to make" in french, but not in the context of 'making a pie' but rather I'd like to say 'they make other people unhappy'.

128. ## math

Describe what the interval ( -7, 12) looks like

129. ## physics

Noreen drops a big pumpkin from the top of a tall building and hears the splash on a trash can 4.50 seconds after she released it i.e. total time. How much a) time for the pumpkin to fall, b) the sound to rise and c) the height of the building?

130. ## Math

What if I get a 5.6 for the mean of something, would I round it or do I leave it?

131. ## college

Write a 350- to 700-word response that familiarizes you with private payer plans and CDHP account types. Briefly list three to five main features for the following nine items. Below each list, provide one or two sentences stating coverage of services and

132. ## Biology

In the course of performing and interpreting daily !@#\$%^&l lavages in a rat, a rat that had previously been exhibiting regular 4 day cycles starts a prolonged period of acyclicity which is dominated by cornified epithelial cells. A male rat also co-habits

133. ## Intermediate Algebra

Can anyone help? I have a test and this is the last question I need answered. I'm lost and exhausted! Thanks for any help! Evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 0 and 1, and at

134. ## Find the Volume

The diameter of a Sphere is 4.8 cm Use 3.14 and round to the nearest thousandth. A 57.876 cm3 B 463.012 cm3 c 289.382 cm3 d 72.346 cm3

135. ## algebra 2

The mass of Saturn is about 5.688 10^23 metric tons. The mass of the sun is about 1.998 x 10^27 metric tons. About how many times the mass of Saturn is the mass of the sun? Give answer in scientific notation. The mass of the sun is about ----- times the

136. ## english

One of the most popular artists of the 1700s was Rosalba Carriera. She was born in Venice in 1675, and from her childhood she showed artistic talent. When she was 30, in 1705, the Roman Academy honored her as a painter of miniatures. Fifteen years later,

137. ## math,science

what does angle equals 1/2 arcsine of gravity times distance over velocity squared equals?

138. ## Quantitative Research

What is the probability of 59 if the mean is 60 and the standard deviation is 7?

139. ## World History

How does modernism relate to the 20th century?

140. ## chemistry

how do you find the moles of solute and the molarity if the molar mas is 98.07, mass of solute is 62.0, and the volume of solution is 1.00?

141. ## Antarctica

Explain why this statement is correct. "Ice makes Antarcica both the lowest of the continental masses and the highest."

142. ## English

how does romanticism contrasts with the rationality of the scientific revolution that preceded it?

143. ## geometry

The width and height of a rectangle are in the ratio 5:1 and the perimeter is 72 inches. Find the area of the rectangle.