# Questions Asked onMarch 13, 2008

1. ## Math Nightmare

I need help The design of a new airplane requires a gasoline tank of constant cross-sectional area in each wing. A scale drawing of a cross section is shown here. The tank must hold 5000lb of gasoline, which has a density of 42 lb/ft3. Estimate the length

2. ## Math

I just need a description of the following: Associative property of Multiplication Associative Property of Addition Commutative properties Distributive Property Identity property(I don't need to know much about this) Zero property(i don't need to know much

3. ## Physics

A basketball is thrown horizontally with an initial speed of 4.20 m/s. A straight line drawn from the point to the landing point makes an angle of 30.0 with the horizontal. what was the release height?

4. ## chemistry

Determine the percentage composition of each of the following compounds a) NaCl b) AgNO3 c) Mg(OH)2

5. ## Interpersonal Communication in Criminal Justice

The Escobedo and Miranda Laws are landmark court decisions that impact the manner in which law enforcement int Question Details: What is the relationship between the two? What was the impact of both decisions in terms of interviews and interrogations of a

6. ## Oceanography

How did the extinction of the Mesozoic marine megafauna allow evolution of cetaceans?

7. ## Physics

On a hot summer day, a young girl swings on a rope above the local swimming hole. When she lets go of the rope her initial velocity is 2.25m/s at an angle of 35.0 above the horizontal. If she is in flight for 0.616sec, how high above the water was she when

8. ## Food

Do bananas grow in China?

9. ## Revolutionary war

how much were the british soldiers paid while they were fighting in the Revolutionary War during 1776?

10. ## algebra

The expression y - 1 - x

11. ## Physics

Consider a skateboarder who starts from rest at the top of a 12.5m-long ramp that is inclined at an angle of 15.0degrees to the horizontal. Assuming that the skateboarder's acceleration is g sin 15.0degrees, find his speed when he reaches the bottom of the

12. ## Physics

You are riding on a Jet Ski at an angle of 35¢ª upstream on a river flowing with a speed of 2.8 m/s. If your velocity relative to the ground is 9.5 m/s at an angle of 20.0¢ª upstream, what is the speed of the Jet Ski relative to the water? (Note:

13. ## chem

Determine whether the following are endothermic or exothermic. 2H2O2 (l) ¨ 2H2O(l) + O2(g) ∆H = -190 kj C(s) + H2O (g) ¨ CO (g) + H2 (g) ∆H = +113 kj C4H9OH(l) + 6 O2(g) ¨ 4 CO2(g) + 5 H 2O(g) ∆H = -2456.1 2 C(s) + H2(g) ¨ C2H2(g) ∆H =

14. ## Physics

Ice-hockey star Wayne Gretzky is skating at 12.7 m/s toward a defender, who in turn is skating at 5.39 m/s toward Gretzky. Gretzky’s weight is 677 N; that of the defender is 869 N. Immediately after the collision, Gretzky is moving at 2.21 m/s in his

15. ## chemistry

what is the hybridization at O with the lewis structure of 2-propanone?

16. ## earth

strontium working with water is it physical or chemical

17. ## chemistry

Determine the percentage composition of each of the following compounds a) NaCl b) AgNO3 c) Mg(OH)2 for NaCl i got na=23/135=0.17 x 100= 17% Cl=35/135=0.26 x 100=26% for AgNO3 i got 108/42 which im sure was wrong and i didn't get how to complete the

18. ## AP Chemistry

i'm having trouble balancing the redox reaction for the iodine clock lab. The redox reaction inovlves a hydrogen sulfite ion and iodate ion in an acidified solution. i have the final balanced equation, 5 HSO3 + 2 IO3 ---> I2 + 5SO4 + H20 + 3H but i'm

19. ## science

where in a angiosperm would you find the reproductive organs?

20. ## science

Why is the ocean described as the world’s largest carbon sink? Sink/Sources in the carbon cycle? Carbon movement through the marine carbon cycle. Help

a motor does 5,000 joules of work in 20 seconds. What is the power of the motor.

23. ## English Grammar

e.g. Mike, this is Adams. In this sentence, Mike and Adams are content words, so they are stressed. What about 'is'? 'Is' is a verb. Verbs are content words, which are stressed. I know that a verb is stressed in a sentence. Do we have to stress 'is' in

24. ## Physics

A ball is thrown at an angle of 37.1degrees above the horizontal from a point on the top of a building and 60m from the edge of the building. It just misses the edge of the building and continues on towards the ground. The building is 50m high. At what

25. ## algebra

show how to solve these problems: 1. 6x - y = -4 2x + 2y = 15 answer:x = 1/2 y = 7 2. x +y = 1 x = -1/3 2x - y = -2 y = 4/3 3. x - y = 3 x = 5/2 6x + 4y = 13 y = - 1/2 I just need to know how to solve these problems. Please show me how it is done.

26. ## Math

What is 260x126?

27. ## social studies

how much did the british get paid during 1776? i need exact answers!!

28. ## Algebra

Help! I think I am right, but not sure. Factor out greatest common factor then simplify the factors 15wx-20wy-25wz= 5w(3x)+5w(-4y)+5w(-5z)= 5w(3w-4y-5z)= 5w

29. ## English

How do u help a child of KG with mirror image writting problem?

30. ## Algebra

20x^2-12x+15x-9 20x^2-12x+15x-9 = 20x^2+3x-9 = (4x+3)(5x-3)

Exculpatory clauses as a group that purport to release parties from all liability are generally upheld by the courts. I am right to think the answer to this is false? Because aren't they normally not enforceable.

32. ## ti-83 unit conversion

How do I do unit conversion using graphing calculator? For example, if you have to convert 4 miles into yards, and you don't know 1760mi=1 yd. Is there any way to do this in calculator? Thanks.

33. ## math (matrix)

Complete the statement a) (5x - y) = (5 -1) (x) (2x + y) = ( ) (y)

34. ## Saint Patrick's day

What is this word Saint gibsensls

35. ## Sci275

I need a brief Description of a Terrestrial resourse Issue.

36. ## SCI275

Give an example of how organisms are interrelated.

37. ## science

I need a brief description of a terrestrial resource issue. Also a management and sustaibnment plan for the terrestrial resource. Challenges or implication of my management and sustainment plan.

38. ## maths

we use algebra, the letters stand for numbers + the letters are short for words can you give me answers

39. ## Calculus III

What is the indefinite integral of: (12sin(3x)cscx)dx If I could have two things given to me please, I'd be grateful. The two things are: 1) Trick/Technique to Use 2) First 2 or 3 steps Thanks in advanced.

40. ## English

Can anyone help me find a synonym for the word "veld". It is any of the open grazing areas of southern Africa. Thanks

41. ## Physics

An object is projected at an angle of 53.1degrees above the horizontal at a speed of 50m/s. Sometime later it enters a narrow tube positioned at an angle of 45degrees to the vertical. Determine: a) The initial horizontal and vertical components of

42. ## History

What are the words master and apprentice associated with?

43. ## History

How many continents did the Roman empire cover?

44. ## algebra

The expression y/x - 1/2 is equivalent to:

45. ## Physics

A ball is thrown from the top edge of a building with initial velocity components of 15m/s(up) vertically and 20m/s horizontally. It strikes ground 140m from the base of the building. What is the height of the building? I tried using V2^2 = V1^2 + 2ad and

46. ## Chemistry

For atoms that contain more than one electron, the Pauli Exclusion Principle states that: (A)the most stable arrangement of electrons in subshells is the one with the greatest number of paralel (B) Diamagnetic substances are repelled by magnets

47. ## Economics

Based on the total world trade share with the given information, find the nations deficit or surplus. country A exports to country B: \$35 country A exports to country C: \$25 country B exports to country A: \$30 country B exports to country C: \$25 country C

48. ## Science

Why is the earth's temperature different in different places?

49. ## Algebra

Describe what the graph of interval [-4,10] looks like.

50. ## Career

I know this isn't a homework question. I apologize. I want to know what kind of career i should look for. I'm upon the completion of an Associate deg of IT/NETWORKING. From univ of phoenix online. I look on a site called dice for IT jobs.

51. ## social studies

In which decade did the numbers of catholic/jews first exceed the number of protestants?

52. ## English

Why did most of the men keep heading toward the Stephano?

53. ## Physics

A movie stunt man (mass 82.3 kg) stands on a window ledge 5.69 m above the floor. Grabbing a rope attached to a chandelier, he swings down to grapple with the movie’s villain (mass 72.3 kg), who is standing directly under the chandelier. (Assume that the

54. ## Social studies

Alfred Mendelsohn composed in 1972 an opera named aftetr a Dutch philsopher. The philosopher is best knwn for his efforts to apply the strict logic of mathmatics and natural sciences to the feild of sociology, ethics and so on. His masterpiece is entitled

55. ## economics

If a nations exports=60 and imports=50 why is 10=surplus and not a balance or deficit.

56. ## Earth Science

Clouds will from when condensation nuclei are present and: air reaches its dewpoint. is that all true?

57. ## chemistry

calculate the mass given element of each of the following compounds a) brimine in 50.0 potassium bromide, KBr b) Chromium in 1.00 kg sodium dichromate Na2Cr2O7

58. ## earth science

When air is saturated, the relative humidity is 100%, the air is holding the max. amt. of moisture, and condensation can occur. True?

59. ## algebra

four men qant to cross a bridge. they all begein on the same side. its night and they only have one flash light with them. at most two men can cross the bridge at the same time,and any party who crosses, either one or two people musy have a flashlight wit

60. ## science properties

graphite is a good lubricante is that physical or chemical

61. ## science matters

white phosporous ignites easily is that chemical or phsyical

62. ## earth science

The area where precipitation and storms occur is a ? syestem.

63. ## spanish

i don't know how to answer this question in a complete sentence? Te duermes en una de tus clases?

64. ## Finance

Company Q has just paid a dividend of \$1.40 per share. Its dividend is expected to grow at 5% per year perpetually. If the required return is 10%, what is the value of a share in Company Q? What I know: Current Div=1.40 Required rate of return=10%

65. ## Precalculus

.5=e^(-20t) I am assuming this involves logs but we did't really learn logs. Anyone care to walk me through with a calculator. Have the Ti-83

66. ## Finance

A common stock is just paid an annual dividend of \$2 yesterday. The dividend is expeccted to grow at 8% annually for the next 3 years, after which is will grow at 4% in perpetuity. The appropriate discount rate is 12%. What is the priceof the stock? What I

67. ## healthcare

I hope that someone out there might be able to answer this question for me or direct in some way. so I would appreciate any help I can get. My question is: Can strategic planning and managing help the US Healthcare system? How?

68. ## bio lab

Among 4 choice, which is have most concentration of nitrites ? (reason to causing blue baby syndrome) A. A brand new subdivision of high-priced “McMansions,” complete with golf course, tennis courts and swimming pool. B. A textile plant that produces

69. ## Oceanography

I am having trouble identifing the major estuary types classed by salinity gradients? Why are they low in diversity but highly productive? Most searches are over my head. Thanks

70. ## History/ English

what is the difference between immigration, emmigration, and migration?

71. ## Math

The distance on a map is given. Find the actual distance, if the scale on the map is 1 in.=60 miles. 2 3/4 in. Please help! Thank you in advance.

72. ## Math

Lin draws a scale drawing of a miniature computer diode. She uses a scale of 1 in.=0.01 in. Lin's drawing is 7.5 inches wide. How wide is the computer diode? Do I take 7.5*0.01 and I would get =0.075 in. Could you tell me if I'm doing it correctly. Thank

73. ## Oceanography

Why is the ocean described as the world’s largest carbon sink?

74. ## physics

A construction worker uses a steep tape to measure the length of an aluminum support column. If the measured length is 18.700 m when the temperature is 21.2 degrees celcius, what is the measured length when the temperature rises to 29.4 degrees celcius. I

75. ## scince

name atleast two ways that pollinated occurs?

76. ## scince

after pollination and fertilization occurs the ovule develops into a ?

77. ## internationnal economics

Based on Price/cost, what are the steps the managers of a global company will need to take in order to decide whether a foreign market is a viable market in which to introduce a new product?

78. ## biology

which of these crosses will only produce heterozygous offspring? a. aa x aa b. Aa x Aa c. AA x Aa d. Aa x aa e. AA x aa

79. ## Algebra

What does domain mean? I am working on a problem that wants me to solve for the domain?

80. ## Physics

A ball is thrown from the top edge of a building with initial velocity components of 15m/s(up) vertically and 20m/s horizontally. It strikes ground 140m from the base of the building. What is the height of the building? I tried using V2^2 = V1^2 + 2ad and

81. ## Science

what is the importace of heterocysts in cyanobacteria?

82. ## science

What is the "Oxygen Catastrophe" Why was it so important for life on this planet? Most articles are hard to understand. Thank you

83. ## science

Why are hetercysts in cyanobactiria critical components of the nitrogen cycle?

84. ## science

What are some of the unique properties of water 0-4 centigrade? Why are they important?

85. ## IS THERE ANY CHEMISTRY TUTORS OUT TONIGHT

i posted a question around like 5 hours ago and still haven't received any help.

86. ## algebra

describe what the graph of interval (-4,10) looks like.

87. ## managerial economics

Can someone explain cost structure and market structure to me please.

88. ## Oceanography

What are the steps and timing of the whales, dolphins, porpoises evolution.

89. ## science

What is the connection between coral reefs and mangrove habitats?

90. ## science

What are the major threats to coral today? Why should we care?

91. ## math`

how many edges does a cube have

92. ## science

What does hermatypic mean? in words I can grasp. over my head and under my bed

93. ## Biology

Explain why dominant traits might not necessarily be the traits that show up most frequently.

94. ## Algebra 1

what are the factors of 31

Have buyers become more conscious now that websites give so much competitive information about price and coupons for so many products that are readily available? In that a good thing or not for marketers?

96. ## biology

How is the sense of smell related to learning/survival?!!!

98. ## cultural diversity

How may orientalism and prejudice contribute to hate crimes against these groups.

99. ## Oceanography

What is OIL/RIG? What is its importance in the nitrogen cycle? How does nitrogen enter a marine system?

100. ## computers

Pls I need a simple access control program written in either basic or fortran programming language.

101. ## Algebra 1

what are the factors of 31

102. ## Oceanography

The abyssopelagic and abyssobenthic zone of the ocean, the largest biome on this planet, is in perpetual darkness. Yet production in these zones is driven largely by seasonal plankton blooms at the surface. Describe this system in rough terms and why

The use of exaggeration and argument by a seller to convince a buyer to enter into a contract will usually be considered: a. fraud. b. duress. c. puffery. d. undue influence. I am really torn between duress and puffery....while puffery does mean

104. ## Math

I just need a description of the following: Associative property of Multiplication Associative Property of Addition Commutative properties Distributive Property Identity property(I don't need to know much about this) Zero property(i don't need to know much

105. ## Maths

x-1/2-x-2/3=1

106. ## spell

if a=1 and b=2 and so on leaving the pattern at z=26 . help!

107. ## math

what are the first three multiples of 9...is it 9, 18, and 27...or is it 18,27,36

Can someone tell me if these are right The use of exaggeration and argument by a seller to convince a buyer to enter into a contract will usually be considered: a. fraud. b. duress. c. puffery. d. undue influence. Answer C puffery A covenant not to compete

109. ## English expression

1. Listening to the dialogue, write a number in order. 2. Listening to the dialogue, write the numbers in order. Which one is correct? There are 7 scrambled sentences in a dialogue in the box.

110. ## Calculus

two complex numbers Z and W are related by the formula W=(Z+1)/(1-Z) what is W if Z=1.5i? thanks for the help!

111. ## English expression

'Glad to meet you.' is expressed as 'Nice to meet you.' ------------------------- Is the expression above grammatical? Do I have to use 'as' after 'expressed'?

112. ## English Grammar

Draw a line between the two peple finding out who is introducing whom. -------------------------------------- Is this sentence above grammatical? Would you let me know if the expression is correct or not?

113. ## English expression

Make your homepage as follows. 1. On the first screen, write the title and insert pictures or photos. 2. On the second screen, referring to the content of the reading text, introduce yourself briefly. 3. Besides the contents above make your own homepages

114. ## language arts

what did john f Kennedy do as president?

115. ## math

can sumbody help me with the steps to this math problem? Evaluate: 9 + (8-2)^2 x 20 / 5

116. ## math

the square root of 1000 divided by 2 then multiplied by 100 to the fith power then minus 6 then timed by two equals?

117. ## Algebra

Rationalize denominator, all variables positive real numbers and denominator is not zero. sqrt3/3 sqrt2 - sqrt3 sqrt3(3sqrt2+sqrt3)/18-3 3 sqrt6+3/18-3 3 sqrt 6+3/15 (is this my answer)

118. ## Macro Economics

On April 20, 2008 your wealthy aunt will give you a bond with a par value (or a maturity value) of \$10,000. Your aunt purchased the bond in 2003, and it matures on April 20, 2009. The bond pays a coupon rate of 8 percent. When it arrives, the bond will

119. ## spelling

i need a sentence for session and convulsion

120. ## geography

does japan have a good or bad economy

121. ## weekly riddle

yyyyur,yyyyyub,icury+y4?

122. ## Algebra

Can someone tell me if I am right? Factor by group 20x^2-12x=15x-9 20x^2+3x+9 (4x+3)(5x-3) answer

123. ## math

an acute angle has how many degrees in it and how many degrees are in an obtuse angle

124. ## chem

method of producing aspirin

125. ## english

need to find a word with the letters "LTSEGRGU"

126. ## Algebra

do the indicated operations and write with only positive exponents and assume all variables are nonzero real numbers x^-5 y^7/x^-2 y^5 y^2/x^3 x^3=0

127. ## Maths Check

Can Please someone check as per below I posted this yesterday and Drwls Answered and I post back the solution. Thanks Amortization of a \$1000 Loan Interest Monthly payment rate 15yr 20yr 25yr 30yr 9.5% \$10.45 \$9.33 \$8.73 \$8.41 10.0% \$10.75 \$9.66 \$9.09

128. ## matrices

Find the value of "a" if the deteminant of (6 3) (4 a)IS: a)6 b)3 c)0 d)-12 (the matrix is six above and four below,three above and "a" below)

129. ## Algebra

My book uses the slope y-intercept method for graphing. I am trying to graph the following: y>3/2x-5/2 (sign > is greater then or equal to) The way I understand it I would start on the Y axis at 0 and go down 5 and then to the right 2 for the -5/2. Then I

130. ## Chemistry

1. A student wishes to set up an electrolytic cell to plate copper onto a belt buckle. Predict the length of time it will take to plate out 2.5g of copper from a copper (II) nitrate solution using 2.5A current. At which electrode should the buckle be

131. ## Science

What volume of helium would be in a balloon the size of a soft drink bottle?

132. ## ??

Can someone explain to me how to do Cornell notes? I do not understand the concept of taking notes, and then making notes from that.

133. ## Calculus - Integrals

What is the integral of arctan x?

134. ## HMO

If you are a doctor who wants to join with other HMO doctors and not give up your own individual practice the best choice for you is what My answer is a primary care phsician practice thanks for the help

135. ## Trig

Solev the equation for t if 0 is less than or eual to t which is less than 2 pi 7sin + radical3 = 5 sin t

136. ## history

why did communism appeal in Russia? and to whom? How did Lenin, Trotski, Bunchain and Stalin differ in implementing communist ideals?

137. ## Algebra

81^1/4 =(4 sqroot81) = (3) =3

138. ## Physics - check

A ball is thrown at a speed of 39.05m/s at an angle of 39.8degrees above the horizontal. Determine: V1perpendicular component: V1Sin(theta) = 25m/s V1paralell component: V1Cos(theta) = 30m/s a) the ball's location 2s after being thrown. V2paralell =

139. ## Algebra

Help! I think I am right, but not sure. Factor out greatest common factor then simplify the factors 15wx-20wy-25wz= 5w(3x)+5w(-4y)+5w(-5z)= 5w(3w-4y-5z)= 5w

140. ## Algebra

use only positive exponents and all variables are real positive numbers y^9/8 / y^5/8 =9/5 (is this right?)

141. ## Physics kinematics

the general "hang time" of a punt is measured to be 4.5sec. if the ball was kicked @ an angle of 63deg. above the horizontal & was caught @ the same level from which it was kicked, what was its initial speed?

142. ## Ethics

What level of CSR (corporate social responsibility) does the religion Judaism fit into?

143. ## Geometry-PSSA Practice

Which of the following quadrilaterals must have diagonals that bisect each other? Rectangle Parallelogram Rhombus Isosceles Trapezoid

144. ## Algebra

expression in lowest terms 5(y-1)/(y-1)(y-4) =5/y-4

145. ## Physics

If you dive to 50 m below the surface of a lake, a) what is the pressure due to the water alone? b)What is the total or absolute pressure at that depth?

146. ## English words

I need to know a SIMPLE definition for the following words and I don't know how to find SIMPLE definiton! Here are the words: 1.) Irony 2.) looting 3.) reverie 4.) plague 5.) hamper

147. ## physics- projectile motion

A player passes a basketball to another player who catches it at the same level from which it was thrown. The initial speed of the ball is 7.1 m/s, and it travels a distance of 4.6 m. What was (a) the initial direction of the ball and (b) its time of

148. ## physics

in a cell voltage energy is converted to current energy and --------.