# Questions Asked onOctober 20, 2008

1. ## chemistry

100 mL of is initially at room temperature (22)C. A chilled steel rod at 2 C is placed in the water. If the final temperature of the system is 21.2 C, what is the mass of the steel bar? Specific heat of water = 4.18J/g(C) Specific heat of steel =

2. ## physics

Two infinitely-long lines of charge run parallel to the z axis. One has positive unifonn charge per unit length, IvO, and goes through the x y plane at x=O, y=s/2. The other has negative unifonn charge per unit length, -A, and goes through x=O, y=-s/2.

Two infinitely-long lines of charge run parallel to the z axis. One has positive unifonn charge per unit length, IvO, and goes through the x y plane at x=O, y=s/2. The other has negative unifonn charge per unit length, -A, and goes through x=O, y=-s/2.

4. ## math

Estimating a cost function, high-low method. Reisen Travel offers helicopter service from suburban towns to John F. Kennedy International Airport in New York City. Each of its 10 helicopters makes between 1,000 and 2,000 round-trips per year. The records

the sum of two integers is zero. the difference of the same two integers is 16. What are the integers

6. ## math

what is the answer to whaat kind of shoes does a frog wear? on page 165 on algebra with pizzazz

7. ## physics

A car is driven 125km west and 65km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?

8. ## physics

Missy Diwater, the former platform diver for the Ringling Brother's Circus had a kinetic energy of 15000 J just prior to hitting the bucket of what. If Missy's mass is 50 kg, then what is her speed?

9. ## Math

How do you solve for inequalities like this? 1< 4-x < 1.59

10. ## English

Mom, I'm going to the stationery store. I'll buy some ball-point pens, fountain pens, and mechanical pencils. I'll buy some notebooks and workbooks, too. I'll come back around 7:00 p.m. Don (Is this passage corect?) 1. I'll be back around 7:00 p.m. 2. I'll

11. ## Calculus

What is the integral of dx/sqrt(9+x^2) and integral of x^2/(1-3x)dx

12. ## Chemistry

Calculate the wavelength of light emitted when each of the following transitions occur in the hydrogen atom. (a) n = 5 n = 4 _________nm (b) n = 5 n = 3 _____________ nm (c) n = 5 n = 2 __________ nm Calculate the maximum wavelength of light capable of

13. ## chem

Zinc dissolves in acid according to the balanced equation. Zn(s)+ 2H(aq)-> Zn(aq) + H2(g) a sample of zinc is placed in a ice calorimeter. If 0.0657g of zinc causes a decrease of 0.109ml in the ice/water volume of the calorimeter, what is the enthalpy

14. ## chemistry

which is more stable: methyl cyclopropane or cyclobutane and why?

15. ## Statistic

A restaurant that bills its house account monthly is concerned that the average monthly bill exceeds \$200 per account. A random sample of twelve accounts is selected, resulting in the sample mean of \$220 and a sample standard deviation of \$12. The

16. ## Physics help again!

A ball is thrown horizontally off a 35 m tall building. It hits the ground 80 m from the bottom of the tower. a. what is the balls time in the air [i got 2.67] b. what is its initial velocity? [i got 0] c. What is the magnitude and direction of its

17. ## PHYSICS 1

When a pitcher throws a curve ball, the ball is given a fairly rapid spin. A 0.15 kg baseball with a radius of 3.7 cm is thrown with a linear speed of 41 m/s and an angular speed of 37 rad/s. Assume that the ball is a uniform, solid sphere. (b) Calculate

18. ## statistics

How does the sample size differ between qualitative and quantitative methods? Why?

19. ## Science

Why are water storage tanks usually built on the top of hills?

20. ## English

The two girls cleared the table and wash the dishes Is this sentence a compound subject or compound predicate

21. ## math

sherry ran one lap in 83.86 seconds, while della's time for one lap was 837/8 seconds. which runner had the faster time?

22. ## physics

a ball is thrown horizontally -> from the roof of a building 45.0 meters tall and lands 24.0 meters from the base. what was the balls initial speed? OTHER QUESTION a shotputter throws the shot with an initial speed of 15.5 m/s @ 34 degrees. calculate the

23. ## history

Why did the Tokugawa shogunate keep Japan isolated from 1603 until 1853?

24. ## accounting

Estimating a cost function, high-low method. Reisen Travel offers helicopter service from suburban towns to John F. Kennedy International Airport in New York City. Each of its 10 helicopters makes between 1,000 and 2,000 round-trips per year. The records

25. ## government

What was the purpose of the Declaration and Resolves written by the First Continental Congress?

what is the national grange

27. ## 3rd grade, Social Studies.

Explain how you are a consumer, what goods and services do you use?

28. ## algebra

If The Diameter Of A Circle Is 1.3 X 10^-12 Meters, Then What Is Its Radius? Can you give me step by step. I think I want to divide this by 2 but I am not sure how to do that. Would it be this: 1.3/2*10^-12= .65*10^-12= 6.5*10^13

29. ## English

Project. 1. Listen to the song carefully and sing the song all together. 2. Working in pairs, one person should take the part of a shopkeeper, and the other should be a customer. Then based on the lyric, each should sing his or her part. 3. For the blank

30. ## algebra

Find a trinomial A(x) that represents the area of a parallelogram whose base is 3x + 2 meters and whose height is 2x + 3 meters. Find A(3). This is what I got: (3x+2)(2x+3)= 6x^2+9x+4x+6= 6x^2+13x+6 Is this right?

31. ## History

How many times has the U.S Constitution been altered over the past 200 years?

32. ## college algebra word problem

Wayne can do a job in 6 hours, while Susan can do the same job in 7 hours. How long would it take them to do the job if the worked together? Thank you!!

33. ## Biology

Which is true about the pairing of bases in the DNA molecule? a. purines always pair with pyrimidines b. a single ring base pairs with another single ring base c. a double ring base pairs with another double ring base d. purines pair with purines and

34. ## US history

what/who did the antifederalists support? (what is diff. from them and the federalist beliefs)

35. ## physics/math

a brick has mass of 1.2 kg. a force of 5.4 N is needed to move the brick along the floor with a constant velocity. what is the coefficiant of friction?

36. ## math

Write each fraction as a percent. 1 1/5

appendix f

38. ## art

i have to do a box all about me, i just can't think on what to do? maybe a catwalk but like what?

39. ## Math

Mike took a 2"x4" picture to the photo store. He had it made into a 4"x8" print. Which geometric concept best describes the relationship between the two prints? Similarity, Linear, Symmetry or Congruency?

40. ## chemestry

what are four components of the water molecule?

41. ## science

A list of things in home and grocery store that display metric units.

42. ## mth

The vote count for candidate A was 7,310. The votr count for candidate B was 14,190. Only two candidates were running. What percent of the voters voted for candidate A?

43. ## college geology dealing with carbon 14

ok in my professors notes he calculates carbon 14 age in an example. The problem goes like this: Sample contains 110g carbon sample produces 70 disintegrations per minute. That is 0.7 disintegrations per minute. T=(1/lambda)ln(N0/Nt) Then he substitutes:

44. ## chemistry

what are four components of the water molecule?

45. ## English (Commas)

Do you use commas before and after a name. For example, If you learn your lines, Daniel, you can play the part of the grumpy old man. Is this correct?

46. ## math

What similarities and differences do you see between functions and linear equations, Are all linear equations functions? Is there an instance when a linear equation is not a function? Create an equation of a nonlinear function and provide two inputs to

47. ## percents

A fund drive announces that that it has raised \$3,276 which is 70% of its goal. How much more must be raised? Can you show me how to do this?

48. ## Saint Michael.

What was Saint Michael's life on earth like?

49. ## science

when did the first carbon data take place

50. ## sociology

why women are more likely to make quick decisions

51. ## macroeconomics

what is the difference between thinking of a person as being employed versus thinking of person's labor as being employed?

52. ## percents

A company gives raises once a year. Amir's present salary is \$12,000. His manager would like to raise his salary to \$84,000. What percentage raise would he be recieving.

53. ## it 220

describe the benefits and risks of doing business on the internet from the perspective of both a business owner and consumer.

54. ## math

which choices correctly represent numbers in base seven. (a)575 base seven (b) 656 base seven If one is incorrect write it so it is correct.

55. ## Algebra

given the function k describ by k(x)=x+20 find each of the following K=(o)

56. ## world geography

"What is the most importent natural mineral fuel in the world?"

57. ## algebra

What is the solution of the system? Solve the system of equations using the substitution method. x-y=-1 5x+4y=-23

58. ## US history

Do you know the flaws of the federalist views

Science; what is the habitat of a jaguar

60. ## Language Arts/ words from many cultures

1)A lizard-like reptile with a narrow head(Greek) 2)A large reptile with a sort,flat head(Spanish) 3)A theatrical dance(French, from Italian) 4)A red or yellow juicy fruit(NahuatI [Aztec) 5)A meal at which people serve themselves(french) P.S. This ( and

61. ## physics gauss law

In a spherical region, the voltage is measured to be spherically symmetrical, with V = VCr) = wrg • The constants, wand g, are positive. a. Find the radial electric field. b. Use Gauss' Law to find the charge enclosed in a sphere of radius r. c. Find the

y=x-2

63. ## com 220

What type of introduction and what type of conclusion would you write for your research paper that was dealing with ex- offenders ? How does the introduction draw readers into your argument, and how does the conclusion neatly tie up your paper?

64. ## science

An object travelling in a circle is accelerating ecause it is constantly changing ____________________.

65. ## Forces on Structures (Science)

What force continually changes a satellite's direction? Why doesn't a satellite need fuel to keep moving? What would be the effect on satellites now in orbit if Earth were to stop rotating?

66. ## math

fraction mystery websites

67. ## math

a nother website except for search engins for fraction myestery

68. ## physics help!!

a plane moving horizontally at 120 m/s drops a package from an elevation of 240 m. How far did the package go before it hit the ground? Step by step directions please!

69. ## high school

where can i find information on stories that were spread on the silk roads? my topic for an english paper is storytellers/writers and how the stories spread with the use of the silk roads.. i can't find any information at all.

what are the four basic climates and an example of each

71. ## Religion.... I think you will know this.....

Today my class got in trouble for talking so my teacher made us do 3 questions.... She said the answers are not in our book so I need help... Thanks so much!!! 1. What is Jesus's race? 2. Who was the ceasor (I don't know if "ceasor" is spelled correctly)

72. ## policies and procedures

Could someone please tell me if the purpose and policy are correct and if they have any suggestions for other procedures.. i need a minimum of 7. Purpose of Policy: The purpose is to set standards and guidelines for the Town of Springbank Hills Recreation

73. ## Statistic

Your company wants to conduct a salary survey for the position of Accounting Assistant II. The estimated salary range is \$4,500, the margin of error should be \$100 and the desired level of confidence is 95%. What is the optimal sample size for this salary

74. ## I posted this yesterday and im STILL CONFUSED!

okay so i was given a worksheet with 15 word problems. i couldn't solve 2 so if you could help me out it would be good.. If you ask Catwoman how many cats she has, she answers with the riddle, 'five-sixths of my cats plus seven.' how many cats does she

75. ## high school physics

a ball is thrown hirizontally from the roof of a building 45.0 meters tall and lands 24.0 meters from the base. what was the ball's initial speed

76. ## ★!!!PhYsIcS!!!★

A 50 kg block is on a 30 degree incline. The coefficient of friction between the block and the incline is 0.05. If it is given an initial velocity of 10 m/s up the incline, how far will it travel until it stops?

77. ## geography

What and where is Waziristan? Why has it become a focal point of international attention? I'm learning about non-western geography and I kept skimming the chapters for the answer to this question but can't seem to find it. Please help me answer this

78. ## cjs

Write a 700- to 1,050-word paper in APA format comparing state and federal prison systems.

79. ## creating resumes

how to create a resume it is for a homework

80. ## Chemistry

Considering the effect of ionic strength, calculate the solubility of BaSO4 in 0.100 mol/L NaCl solution Ksp of BaSO4 = 1.1 X 10^-10

81. ## physics

A boxcar of mass 200 tons at rest becomes uncoupled on a 2.5 degree grade. If the track is considered to be frictionless, what speed does the boxcar have after 10 seconds?

82. ## english

I need an object to represent the beginning of one flew over the cuckoo's nest for a proj. Any ideas?

83. ## geography

In South Asia, where does rain fall in August? In February? What are the seasonal changes caused by the movement of the ITCZ. I know that the Intertropical Convergence Zone is related to the Asian monsoon, but I'm confused on their relativity. Please help

84. ## Applied Maths

Given that position vector a=4i+2j, position vector b=13i+5j are the vectors of A and B respectively. Given also that C lies on the line AB such that (Ab/AC)=3. Find vector AB, vector AC and the position vector of C. Given that vector BD=2i+4j, show that D

Define Interactive

86. ## science

Why are there more warm currents than cold currents?

What are the differences among the research approaches (and thinking styles) that guide the predominant kinds of studies done in operations research, marketing, finance, and/or organizational behavior?

88. ## PHYSICS 2

A 2.0 kg cylinder (radius = 0.08 m, length = 0.50 m) is released from rest at the top of a ramp and allowed to roll without slipping. The ramp is 0.77 m high and 5.0 m long. (b) What is its rotational kinetic energy? ? J (c) What is its translational

89. ## PHYSICS 3

A solid disk (mass = 1 kg, R=0.5 m) is rolling across a table with a translational speed of 9 m/s. a.) What must the angular speed of the disk be? rad/s d.) The disk then rolls up a hill of height 2 m, where the ground again levels out. Find the

90. ## coulomb law and gauss law Physics

Two negative particles of charge=-Q and mass=rn orbits a stationary, positive particle of charge=+2Q at a radius= R' They are always at diametrically opposite points on the orbit. a. Find the total inward Coulomb force on one negative particle. b. Write

91. ## social studies

is francisco de Goya a renaissance artist??

92. ## grammar

WHAT IS PREPOSITION?

93. ## English

How do you summarize a paragraph?

94. ## AP Human Geography

For an assignment, I have to use this data sheet to do a few things with the data it gives me. To get to it, go to PRB. org, click on 2008 World Population Data Sheet, and then click on 2008 World Population Data Sheet again I'm stuck in this: Construct a

95. ## Microeconomics: Cost of Production

Please help me with this question! QUESTION: Heaven Sub, a subway shop, has the following marginal product curve points for its hourly product: (0.5, 13) (1.5, 17) (2.5, 15) (3.5, 11) (4.5, 9) i) When labour increases from 2 to 3 workers, total product

96. ## science

Why are there more warm currents than cold currents in oceans?

97. ## physics

(A multiple part problem) Find the tension in the three wires that support a 10.2kg light fixture. Each wire forms 40° with the ceiling. Answer for top left wire. Find the tension in the three wires that support a 10.2kg light fixture. Each wire forms

I need help for a physics error analysis assignment and I have no background understanding whatsoever of statistics since I've never taken it and it all seems so foreign to me without any teaching. Can someone please help me with these questions? 1) One

99. ## Cultural Diversity

Hispanic American Diversity.

100. ## Language arts

I am trying to assist my fourth grader in writing her first book report. It is based off of a mystery book. I have looked everywhere for a basic guildline for her so that I can give her an idea of what to do without doing it for her.Can anyone please guide

101. ## 6th grade Comm. Arts

I'm supposed to do an autobiography and have an attention getting introduction. We learned about all of the things you can do to get people's attention, but I still can't think of one.

102. ## starch

how can i carry out starch analysis by extraction and sedimentation method.

103. ## science

what is the stongest narcotic opoioid pain releiver out there? I will ask my doctor but if anyone knows, that would be great.

104. ## trig

Write each identity expression in terms of:1. cos theta= a. sin^2theta ---------- sec^2theta-1 2. tan theta= a. sec theta over sin theta minus sec theta over cosecant theta.

105. ## Math Help

given: f(x) = (x + 2)/x and g(x) = (x + 1)/(x + 2) what is the domain of f(x) times g(x)?

106. ## Microeconomics

Monopolistic Competition A monopolistically competitive market could be considered inefficient because: A. Marginal revenue exceeds average revenue B. Price exceeds marginal cost C. Efficient scale is realized in the long run, but not in the short run D.

107. ## economics

How do prices, outputs, and profits differ between oligopolies, and monopolistic competition? Are there similarities?

108. ## Professional Ethics

What is an example of the kind of argument employers use to engender loyalty in their employees?

What kind of product might not have been sold for a long time because of the marketplace's lack of interest?

110. ## R.E

Please tell me who are the 5 Prophets? I have a bible (christian i think..) crossword and it has a few questions on it at the bottom and one of them is the 5 Prophets. I can give a list of names, but please can you tell me out of the names who the 5

112. ## science

I need accurate information about Albert Einstein. Any reccomended websites?

113. ## BIOLOGY

WHEN A DNA MOLECULE IS COPIED TO MAKE ANOTHER DNA MOLECULE, WHICH STATEMENT BEST DESCRIBES THE RESULTING STRANDS? A. ONE DOUBLE STRANDED DNA MOLECULE IS THE ORIGINAL AND THE OTHER A NEW COPY B. BOTH RESULTING STRANDS ARE ENTIRELY MADE OF NEW DNA BASED ON

114. ## science

What is a length of an average persons blood vessel?

115. ## R.E

On the crossword, it says, Which 5 are letters out of these words: Corinthians, Galatians, Philippians, Revelation, Romans and Timothy. Please help and theres another two questions, How many are in the Old Testmant and New Testmant. Please help! Thanks

116. ## Science

Why is a cooling sysyem necessary in a nuclear reactor?

117. ## chemistry

can u tell me a slogan for flourine?

118. ## Math

Find all the points of intersection of the surfaces whose equations are as follows: z^2 = 2xy - 100 and x^2 + 2y^2 - 100 ---------------- 2y

119. ## Greek Mythology

I know Poseiden was the god of the sea, but I'd like more detail about him. Can someone help me?

120. ## liturature

After the death of Curly in The Call of the Wild, Buck concludes that no fair play exists in his world and that he will never go down in a fight. The theme illustrated here is apparently derived from London's interpretation of

What is the plural of maestro?

122. ## english poetry

Wiiliam Blake wrote a poem called The Tyger/Tiger. First of all I want to know how it is spelt Tiger/Tyger? Secondly what does sinews mean? Lastly I what are the main themes? Thanks

123. ## Math

Find all the points of intersection of the surfaces whose equations are as follows: z^2 = 2xy - 100 and x^2 + 2y^2 - 100 --------------------- 2y

124. ## science

how does a hurricane form?

125. ## Standardize testing

As a future teacher, I am curious to find out: How effective are standardize tests in assessing students academic performance or competence?

126. ## Science

Heyylllooo x can anybody help me with my science homework ? You have to " Use detailed particle diagrams and the big idea of energy transfer to explain how the ear defenders work" Also, we have to draw a picture of the ear defenders and describe all the

127. ## history

what does "state of nature" mean? is it a person's rights?

128. ## Statistics

I have 2 statistics problems that I've done and felt completely confident with them until I worked the problem a different way and got a different answer. I was wondering if you could tell me if I have the right answers or not. Thanks so much! A certain

129. ## English

i'm stuck on an essay can you help: "How does Shakespeare make Act3 Scene4 so dramatic?"

130. ## Math

Give an example of Partial sums method.

131. ## science

what is silica content of earths crust under the oceans?

133. ## philosophy

is the world dominated by money?

134. ## algebra

how to do unit rate \$60 for 8 h there is more like 3/4lb and 861bagels/3d and 850cal/1.25h

135. ## english 1

i have to do a paragraph and i have to write bout if i can change one thing wat wood it be and three reason ill take anything

136. ## !social studies!

what were all the places that christapher columbus explored!? help me please!

137. ## global geography

the native people of australia are known as

138. ## PreCalc!

sketch a graph whose domain is the interval [0, infinity) but whose domain must be restricted to [0,4] so that the function can have an inverse. (The only one i can think of is a parabola but she said we cant use that one) Consider the 2 statements: I. if

my son in 4th grade has to write a poem using stanza form and must use his mentor text. What is mentor text?

solve each equation for y. do x and y vary directly? if so indentify the constant of variation. 1.4x=5y 2.2x+3y=6

141. ## chemistry

the density at 20 degrees celcius of a .258m solution of glucose in water is 1.0173 g/ml, and the molar mass of glucose is 180.2 g/mol. What is the MOLARITY of the solution?

Simplify. Tell which property you used. 27x0x3 & (38)(25)(4)

143. ## math

what is the constant variation 3.2x+3y=6 4.3x-1=7y-1 write each lineat equation in slope intercepy form 1.x=-2y-7 solve the equation 1.x-15=27

144. ## Philosophy

Philosophy and Belief in God Matching Activity Match the following to the philosophies and descriptions below. Use each item only once. a. St. Anselm b. Gaunilo c. St. Thomas Aquinas d. Julian of Norwich e. Rene Descartes f. Gottfried Wilhelm, Baron von

145. ## math

I need help. I have information on the metric system. I have to list things at home and grocery store that display metric units. I don't know if I quite understand. I am trying to understand the reason behind my answer. The metric units and measurements

146. ## Chemistry

the density at 20 degrees celcius of a .258m solution of glucose in water is 1.0173 g/ml, and the molar mass of glucose is 180.2 g/mol. What is the MOLARITY of the solution? i need an explanation on how to go about solving this...

147. ## literary

what is deductive resoning?

148. ## chem

calculate the longest wavelength visible to the human eye

149. ## Calc

What are the derivatives? Thanks a) y = log(base2)(4-9x) b) y = x^(8x)

150. ## History

What websites do i look at for shelter and agriculture of the early west africa?

151. ## Spanish

what does solito mean in english?

152. ## math

-729,-7098,729,-2

153. ## chemistry

Density of phosgene gas, COCl2(MM=99) ander a certain condition is 4.5g/L. What is the density if H2S gas(MM=34) under the same conditions?

154. ## language arts

what is the compound predicate or compound subject in the sentence Mary collects the tickets and tears them in half.

155. ## US History

Was there anyone missing from the constitutional convention and if so who was missing from the constitutional convention? I didn't know some people were missing. Can some explain this?