# Questions Asked onSeptember 2, 2008

1. ## biology

What is the difference between Bacteria and Archaea?

2. ## Physics

A bag is dropped from a hovering helicopter. The bag has fallen for 2.0 s. What is the bag's velocity? How far has it fallen?

3. ## 11th grade (World History)

Which ruin is about 140 miles southwest from Copan?

4. ## physics

a roller coaster car moves 200 ft horizontally and then rises 135 ft at an angle of 30 degrees above the horizontal. It then travels 135 ft at an angle of 40 degrees downward. what is its displacement from its starting point? im not really sure what to do,

5. ## Calculus

A box of fixed volume V has a square base with length x. Write a formula for the height, h, of the box in terms of x and V. Sketch a graph of h versus x. Is the answer h=V/x^2

6. ## writing

word puzzle about labor day. wondeful workers. we have most of the answer we have United states and what

7. ## Calculus I

Problem: A hot air balloon rising straight up from a level field is tracked by a range finder located 500 feet from the point of liftoff. Express the balloon’s height as a function of the angle the line from the range finder to the balloon makes with the

8. ## Math

How can you classify the 2 examples that you gave in part c? Is it: Simple random sample Systematic random sample Voluntary response sample Convenience sample Or Stratified random sample? Thank you.

9. ## Physics

A tennis ball is thrown straight up with an initial speed of 20.0 m/s. It is caught at the same distance above the ground. How high does the ball rise (m), and how long does the ball stay in the air (s)?

10. ## Criminal justice

Restorative justice may be the model that best serves alternative sanctions. How can this essentially humanistic approach be sold to the general public that now supports more punitive sanctions? For example, would it be reasonable to expect that using

11. ## No subject

I've noticed in the people around me these defense mechanisms. Denial, Identification, Regression, Intellectualization, Sublimation, and Displacement.The above is what i have answered for the following question.what defense mechanisms have you noticed in

12. ## science

from sea level, the biosphere goes up about 9 km and down about 19 km. what is the thickness of the biosphere in meters?

13. ## Ethnic Diversity

According to current (within the past two years) research and news reports, what are some of the changes the United States has made to policies concerning the treatment of Muslim and Arabic members of society?

14. ## Chemistry

Two hydrides A and B of an element X contain 17.76% and 12.58% by mass of hydrogen. Identify A and B and comment on their structures.

15. ## Chemistry

Convert 10.3 g x cm3/second2 to kg x m3/hour2

16. ## Calculus/Trigonometry

A box of fixed volume V has a square base with length x. Write a formula for the height, h, of the box in terms of x and V. Sketch a graph of h versus x. Is the answer h=V/x^2

17. ## Chemistry-Question 3

A 4.86 kg sample of a solution of the solute chloroform in the solvent (C2H5)2O that has a concentration of 1.91 pph by mass chloroform is available. Calculate the amount (g) of CHCl3 that is present in the sample. Molar Mass (g/mol) CHCl3 119.38 (C2H5)2O

18. ## math

A sugar molecule has twice as many atoms of hydrogen as it does oxygen and one more atom of carbon that oxygen. If a sugar molecule has a total of 45 atoms, how many are oxygen and how many are hydrogen?

19. ## English

Why don't you try a little harder? Why not try a little harder? Why don't we try a little harder? Let's try a little harder. Let's try a little harder, shall we? Shall we try a little harder? How about trying a little harder? What about trying a little

20. ## biology

What are the differences between Archea and Bacteria?

21. ## Math

What are the like terms in the exprression 3ac = ab - ac = 2ab? Explain. Simplify the expression. Show your work.

22. ## Biology

What are the steps and how many in the scientific method?

23. ## kayla

A sugar molecule has twice as many atoms of hydrogen as it does oxygen and one more atom of carbon that oxygen. If a sugar molecule has a total of 45 atoms, how many are oxygen and how many are hydrogen?

24. ## Physics

Suppose an astronaut drops a feather from 1.3 m above the surface of the Moon. If the acceleration due to gravity on the Moon is 1.62 m/s2 downward, how long does it take the feather to hit the Moon's surface?

i'm trying to find someone that knows what a diamond problem in algebra is. it is a diamond shape divided into 4 equal parts in the example it has an xy at the top an x on the left and a y on the right and x+y on the bottom. then on problem #1 it has a 15

26. ## Algebra I

My substitute teacher gaves us a worksheet that asks us to do problems we've never had before. How do I do unions and intersections on a number line using inequalities? Is there a formula for this? Example: A intersects C A={x|x>-3} C={x|x greater than or

28. ## algebra

simplify the sum of radical expressions: T^2 square root 96tw^2 + 9w square root 6 T^5 Simplify: square root 5w^2 T^7 x square root 20 w^3 T^6

29. ## economic

ASSIGNMENT 5: DUE 4.00PM, 4/09/08 1. A competitive firm uses coal to generate electricity. Its supply curve is Q = 300P - 1000, where Q is quantity produced (units of electricity per year), and P is market price of electricity per unit. The production of

30. ## math

What units in the metric system would you use to measure each of the following quantities? (a) Distance from Los Angels to New York (b) Your waist measurement (c) Width of a hair (d) Your height

31. ## Chemistry

A solution of hexane in the solvent (CH3)2CO has a mole fraction of CH3(CH2)4CH3 of 0.114. What mass (g) of the solution must be taken if 1690 g of hexane is needed? Molar Mass (g/mol) CH3(CH2)4CH3 100.21 (CH3)2CO 58.05 Density (kg/L): CH3(CH2)4CH3 0.6838

32. ## Chemistry-Question 4

What mass (g) of the solute C3H8O3 should be mixed with 8270 mL of the solvent H2O to produce a solution that is 1.02 m glycerol. Molar Mass (g/mol) C3H8O3 92.09 H2O 18.015 Density (kg/L): C3H8O3 1.261 H2O 0.9982 Name/Formula: glycerol C3H8O3 water H2O

Express 5-2i in polar form. Express your answer in radians to the nearest hundreth. r=sqrt5^2+-2i^2 which equals sqrt21.Arctan of -2/5+pi equals -18.7 Polar form=sqrt21 cis -18.7 Is this correct??

34. ## Pre-Calculus

The paddle wheel of a boat measures 16 feet in diameter and is revolving at a rate of 20 rpm. The maximum depth of the paddle wheel under water is 1 foot. Suppose a point is located at the lowest point of the wheel at t=0. 1) Write a cosine function with

35. ## Math

Suppose M is between L and N. Use the Segment Addition Postulate to solve for the variable. Then fine the lenghts of LM, MN, and LN. LM=7y+9 MN=3y+4 LN=143 Please tell me how you got your answers.

36. ## Physics

You throw a ball downward from a window at a speed of 1.8 m/s. How fast will it be moving when it hits the sidewalk 2.8 m below?

37. ## Algebra

Solve for x and y: 2x + y = 1 x - y = 8 PLEASE HELP. and show work.(:

38. ## algebra

1/2x+6=1/3x

why must a scientist estimate a measurement?

40. ## math

a framer divides his herd of cows anong his 4 sons, one get 1/2, second get 1/4, 3rd gets 1/5 and the 4th get 7. how many cows are in the herd?

41. ## literature

what is the meaning of the title of Robert Cormier's "Tunes for Bears to Dance to?"

42. ## math

How many different 6 digit numbers can be formed using the digits 1,2,3,4,5,6 given that no digit is repeated in a number?

44. ## Economic - Cost and benefit analysis

i am not a spoon feeder, i just don't have any idea about these messy questions. ASSIGNMENT 5: DUE 4.00PM, 4/09/08 1. A competitive firm uses coal to generate electricity. Its supply curve is Q = 300P - 1000, where Q is quantity produced (units of

45. ## Medical transcription HIPAA research project

I have never done a research project and I don't understand how to do the reference page or the work cited for internet sources. Can you help? For example, I went to US Deparment of Health and Human Services Protecting the Privacy of Patients Health

46. ## college

The annual rainfall in California’s north valley averages twenty-three inches. So the rainfall next year will be twenty-three inches

47. ## Economics~~URGENT!!!

i am not a spoon feeder, i just don't have any idea about these messy questions. ASSIGNMENT 5: DUE 4.00PM, 4/09/08 1. A competitive firm uses coal to generate electricity. Its supply curve is Q = 300P - 1000, where Q is quantity produced (units of

whatis 1=1

49. ## Math

Mascot: Number: Bisons 17 Cougars 4 Huskies 18 Knights 32 Other 3 a. About how many students would vote for the Huskies if the entire student body of 1600 voted? About how many would vote for the Knights? b. Suppose the students surveyed were in the

50. ## College Accounting

Is there anyone that can help me with Chapter 2 problem 2-3a. I really need help with the effects of transactions(balance sheet accounts)

51. ## Economics

How can the Internet be considered a product and a promoter of free enterprise (besides pop-ups)?

52. ## Spanish

I need to do a report on the Spanish Civil War, and I need to provide visuals to go along with it like maps, flags or miniatures. I've looked at several sites and they show different map, even for the Nationalist and Republican. Does anyone know any good

53. ## algebra II

multiplication of polynomials by polynomials. 2^n-3 b^2n-2 (b^2-2^5-n b) I get 2^n-3 b^2n - 4^2 b^2n-1 but that is not right. I am stuck on the -4^2 part only. The rest is right.

54. ## eXpOnEnT mAtH

write each product as the product of the same factor: 1.)5 Ex:3 2.)a Ex:5 3.)(-j) Ex:2

55. ## math

Gasoline accounts for 85% of the motor fuel consumed in the united states every day. If 8,882 thousand barrel (bbl) of motor fuel is consumed each da, how much gasoline is consumed each day in the united states? round to the nearest barrel.

56. ## English

Bingo Game Let's play the bingo game. There are six expressions on the right of the bingo board. You should write down each expression in the box on the bingo board at random. After that I will read English sentences one by one. You have to draw a circle

57. ## math

Jerry earned \$18,500 one year and then received a 10.5% raise. What is his new yearly salary?

58. ## chemistry

I have problems with this question. Can anybody help me? When dilute nitric acid was added to a solution of one of the following chemicals, a gas was evolved. This gas turned a drop of limewater. Ca(OH)2, cloudy,due to the formation of a white precipitate.

59. ## College Algebra

Do variables with exponents in algebraic terms need to be alphabetical?

60. ## Economics

How is the Internet a promoter of free enterprise? I came up with pop-ups but I can't think of another example.

61. ## science

What is the difference between a theory in everyday use and a scientific Theory?

62. ## making dot arrays

to make a 14-dot array that has exactly two rows, is this going to have a total of 14 dots or will it be 14 dots per row

63. ## Chemistry

How do atoms bond to form molecules?

64. ## biology

what is the primary focus of all biological studies?

65. ## Science

why is it unlikely that some of the tectonic plates will stop moving

66. ## math

I'm having problems with subtracting 10 digit math problems.Can you give me any websites?

67. ## english

what part of speech is about? what part of speech is (is)?

68. ## Physics

Determine the final velocity of a proton that has an initial velocity of 2.5*10^5 m/s, and then is accelerated uniformly in an electric field at the rate of -1.10*10^12 m/s^2 for 1.90*10^-7 s.

69. ## math

two US coins that total 55 cents in value? one is not a nickel.

70. ## Algebra

I need help with using the quadratic formula to solve this equation: 2^x2-2x = 8

71. ## Science

Homer Notices that his shower is covered in a strange green slime. His friend, Barney, tells him that coconut juice will get rid of the green slime. Homer decides to check this out by spraying half of the shower with coconut juice, and half with water.

72. ## world history

what feature makes up part of the US border with canada

unscramble the work riday it is a literature word

74. ## government

What do ew call achange to the constitution?

75. ## Science

I have more than one hundred legs. I cannot stand. I have a very long neck. I do not have a head. I cannot see but I am as neat and tidy as can be. What am I?

76. ## Grammar

what is a nominative pronoun?

77. ## math

solve for x 3x^2 + 2x - 5 = 0 you foil it and get: (x - 1)(3x + 5) but i don't know what to do from here. please please pleasee help.

78. ## Calculus

If you can helpme on this problem you are GOD. If f(x) = ax^2 + bx + c, what can you say about the values of a, b, and c if: (A) (1,1) is on the graph of f(x)? (B) (1,1) is the vertex of the graph of f(x)?[Hint: The axis of symmetry is x = -b/(2a).] (c)The

79. ## science

why would a scientist need to identify and control variables in an experiment?

80. ## science

Why might a scientist estimate a measurement?

81. ## english

what is the topic, audience,purpose,and format of this mini-prompts. Write a letter to Mrs. Arrington discussing why students attendance is poor.

82. ## Math

I need help solving this problem. x - 3 > 8

83. ## Math

3y - 2 > 12 - 5y

84. ## math

Wendy is a loan officer and has 1,000,000 to lend and is required to get an average return of 18% per year. If she can lend at the rate of 19% or at the rate of 16%, how much can she lend at 16% rate and still meet the requirement?

85. ## Math

place value what is standard form and what is expanded form

86. ## Economics

How can the Internet be considered a product?

87. ## social studies

My stupid teacher says since there is seperation from church and state the president can be sword on diffrent books not including religon.He wants examples of 5 other books that may be used but i can only find people using the bible and for other political

88. ## accounting

Can anyone help me with this, why doesn't managerial accounting require independent audits to verify the accuracy of the generated reports used in the management decision making process?

how do you solve limits that have infinities!?

90. ## Hum 130

Is indigenous religion still practiced in Japen today?

91. ## math

The minimum daily value (MDV)for certain foods are given. They are based on a 2,000 per day diet. Find decimal and fractional notation for the percent notation in each sentence. (a) 1 ounce of tostitos provides 9% of the MDV of fat. (c) 1/2 cup of

92. ## social studies

what features border the u.s with canada

93. ## spanish

saquen unahojade papel. What does this mean?

94. ## Algebra II

Tell whether or not the following sets are fields under the operations + and *. If the set is not a field, tell which one(s) of the Field Axioms do not apply: a) [rational numbers] b) [integers] c) [positive number] d) non-negative numbers] That is a

95. ## American Dream Project

so in social studies we have to do an american dream project witha poster and a speech and also we have to pick a song that goes with our board/ the american dream. I picked "Life is a Highway" by Rascal Flatts (sp?) We have to explain how it goes with the

96. ## physical geography

what are the five most important paralells of the earth?

97. ## math

The minimum daily value (MDV) for certain foods are given. They are based on a 2,000 calorie per day diet. Find decimal and fractiona notation for the percent notation. 1/2 cup of campbells' new england clam chowder provider 6% of the MDV of iron

98. ## grammar

I need help identifying each words part of speech on 2 sentences: Growing along with your family Built to last forever Please help

99. ## english

what is the simple subject to this sentence Does the map show this PLace?

100. ## math

Ms. Jordan has been given a loan of \$2,500 for 1 year. If the interest charged is \$275, what is the interest rate on the loan?

101. ## Science

Why are the planets visible enough even though they are not light sources?

102. ## Brookwood

A 67.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are .800 and .460 respectively. A) what horizontal pushing force is required to just start the crate moving? B) What horizontal pushing force is

103. ## math

Yi chen made a \$6,400 investment at the beginning of a year. By the end of the year the value of the investment had decreased by 8.2% What was ts value at the end of the year?

104. ## Physics

A 67.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are .800 and .460 respectively. A) what horizontal pushing force is required to just start the crate moving? B) What horizontal pushing force is

105. ## Physics

At a time when mining asteroids has become feasible, astronauts have connected a line between their 3400 kg space tug and a 6000 kg asteroid. Using their ship's engine, they pull on the asteroid with a force of 490 N. Initially the tug and the asteroid are

106. ## significant figures

(42.70 + 0.259) / 28.4 I wanted to know, if it 1.510 or 1.51? because it has to be correct sig figs.

107. ## math

the trip will be 560 miles the bus travels at a average speed of 60 miles per hour

108. ## chron puzzle

Help me unscramble this word (partisened) why the play didn't run long????

109. ## math

equation of a line in slope intercept for that passes through (4,3) and (7,-2)

110. ## spanish

what does this question mean im really confused. directions - translate the adjective and write the correct form. 1. un apartmento (small) 2. las mujeres (brown haired) 3. los hombres (tall) 4. la senora (pretty) 5. las clases (easy) can someone explain

111. ## calculus

Can someone please tell me what the word "WHOLE" AND "IRRATIONAL" MEAN IN CALCULUS? THANKS

112. ## Sci

What would happen if our pH levels increased?

113. ## Chemistry

What volume (mL) of the solvent benzene should be added to 142 mL of the solute CH3CN to generate a solution that is 2.68% by mass CH3CN?

114. ## Linear Relationships

Use the Distributive Property to write two expressions, that show two different ways to compute the area of each rectangle. a. 6,4:14 b. 3:5,5

115. ## English

Let's make plans for next month. Let's make a plan for next month. Let's make two plans for next month. --------------------------- What is the difference among them? Does a plan mean one plan?

116. ## health

a teenage girl has some shaking in her fingers often, and she has been a little constipated all week. Her skin is little rough and flaky. From these observations, does she have parkinson's disease? explain your answer. I'm not exactly sure, but i think the

117. ## Math

Hello, I need to know if I have the right answers to these questions. 2x-y=3 question is which of the following points lie on the line. is the answer 0,3 (-1,1) (2, 1) (-3, 1) (-3, ) or (1, 2) I chose the answer (-3, 1) is that right, second question: If

118. ## Math

Number sense: Cari says the value of the digit 3 in 34,465 is 300,000. Do you agree or disagree? Explain.