Questions Asked on
March 13, 2008

  1. 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

    asked by Sugarplum
  2. 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

    asked by Fabian
  3. chemistry

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

    asked by john
  4. 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?

    asked by Sean
  5. 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?

    asked by Lisa
  6. 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

    asked by Sean
  7. 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:

    asked by Clarita
  8. 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

    asked by Alex
  9. 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

    asked by Charlie
  10. spanish

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

    asked by Jordan
  11. 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

    asked by Charlie
  12. 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

    asked by Hu
  13. 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

    asked by Mischa
  14. IPC 8th grade

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

    asked by Debbie
  15. 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

    asked by Anonymous
  16. 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

    asked by joanna
  17. 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?

    asked by S
  18. 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 =

    asked by c
  19. 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

    asked by Jake
  20. 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

    asked by Tom
  21. 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

    asked by Teresa
  22. 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.

    asked by jim
  23. 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

    asked by Tina
  24. 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

    asked by john
  25. 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

    asked by sophon
  26. 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.

    asked by John
  27. social studies

    how much did the hessians get paid during the revolutionary war? in 1776. also where were they from?

    asked by brooke
  28. 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

    asked by Anonymous
  29. 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

    asked by jamia
  30. 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

    asked by Mike
  31. Business

    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

    asked by Mike
  32. 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.

    asked by Sean
  33. 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%

    asked by Teresa
  34. History/ English

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

    asked by Lorinda

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

    asked by john
  36. science

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

    asked by pat
  37. 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)

    asked by Lori
  38. 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

    asked by Tim
  39. 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

    asked by Kally
  40. Algebra

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

    asked by Tim
  41. maths

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

    asked by lee
  42. English

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

    asked by Sue
  43. algebra

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

    asked by Linda
  44. 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?

    asked by Blondie
  45. 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

    asked by Malyssa
  46. 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

    asked by Anonymous
  47. science

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

    asked by Laurel
  48. math`

    how many edges does a cube have

    asked by jimmy
  49. Business

    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

    asked by Mike
  50. 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

    asked by Meherin
  51. 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'?

    asked by John
  52. math

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

    asked by Meherin
  53. 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?

    asked by jerry
  54. ??

    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.

    asked by Emily
  55. Algebra

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

    asked by Bethany
  56. 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

    asked by Anonymous
  57. Geometry-PSSA Practice

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

    asked by Christina
  58. ETH125

    Consider the choices of Native Americans who decide to stay on their tribe's native land (reservation) and those who choose to relocate to a city. If you were presented with this decision, which would you choose and why?

    asked by lisa
  59. Math

    What is 260x126?

    asked by Steve
  60. English

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

    asked by Hatim
  61. History

    How many continents did the Roman empire cover?

    asked by Anonymous
  62. algebra

    The expression y - 1 - x

    asked by Linda
  63. 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

    asked by Anonymous
  64. Algebra

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

    asked by Al
  65. Earth Science

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

    asked by Anonymous
  66. 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

    asked by jack
  67. 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.

    asked by Plse Help
  68. 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?

    asked by Lisa
  69. algebra

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

    asked by Maria
  70. Business

    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?

    asked by China
  71. computers

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

    asked by Charles
  72. Maths


    asked by Vincent
  73. 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!

    asked by Anne
  74. 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

    asked by Chuck
  75. 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)

    asked by Keisha
  76. 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

    asked by G
  77. 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

    asked by Selma
  78. history

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

    asked by John
  79. 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 =

    asked by Anonymous
  80. 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

    asked by Megan
  81. 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

    asked by Megan
  82. 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.

    asked by jen
  83. Sci275

    I need a brief Description of a Terrestrial resourse Issue.

    asked by Attivia
  84. 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.

    asked by Attivia
  85. Revolutionary war

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

    asked by Brooke
  86. 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

    asked by Carrie
  87. 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?

    asked by Anonymous
  88. 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

    asked by Trevor
  89. science

    where in a angiosperm would you find the reproductive organs?

    asked by brenda
  90. Oceanography

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

    asked by Malyssa
  91. Algebra

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

    asked by Lori
  92. Science

    what is the importace of heterocysts in cyanobacteria?

    asked by Laurel
  93. science

    What is the connection between coral reefs and mangrove habitats?

    asked by pat
  94. cultural diversity

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

    asked by unknown
  95. Oceanography

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

    asked by Malyssa
  96. 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

    asked by Meherin
  97. Calculus--complex numbers

    the complex number Z satisfies Z/(Z+4)= 3+2i Find Z. please help thx!

    asked by Anne
  98. 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

    asked by John
  99. 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

    asked by John
  100. language arts

    what did john !@#$%^&ennedy do as president?

    asked by jerry
  101. math

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

    asked by jerry
  102. 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

    asked by Jen
  103. Science

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

    asked by GaBrielle
  104. Algebra

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

    asked by Cindy
  105. Ethics

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

    asked by Janice
  106. Food

    Do bananas grow in China?

    asked by Ishmal
  107. social studies

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

    asked by brooke
  108. Business

    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.

    asked by Mike
  109. math (matrix)

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

    asked by Destiny
  110. Saint Patrick's day

    What is this word Saint gibsensls

    asked by brittany
  111. SCI275

    Give an example of how organisms are interrelated.

    asked by Attivia
  112. History

    What are the words master and apprentice associated with?

    asked by Anonymous
  113. Science

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

    asked by Beth
  114. 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.

    asked by James
  115. social studies

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

    asked by pat
  116. English

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

    asked by Julie
  117. chemistry

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

    asked by matt
  118. economics

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

    asked by Hu
  119. earth

    strontium working with water is it physical or chemical

    asked by polly
  120. science properties

    graphite is a good lubricante is that physical or chemical

    asked by polly
  121. science matters

    white phosporous ignites easily is that chemical or phsyical

    asked by polly
  122. earth science

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

    asked by kayshell93
  123. 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

    asked by Plse Help
  124. scince

    name atleast two ways that pollinated occurs?

    asked by brenda
  125. scince

    after pollination and fertilization occurs the ovule develops into a ?

    asked by brenda
  126. science

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

    asked by Laurel
  127. science

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

    asked by Mike
  128. Oceanography

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

    asked by David
  129. managerial economics

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

    asked by jean
  130. Oceanography

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

    asked by David
  131. science

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

    asked by pat
  132. Biology

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

    asked by Jackie
  133. Algebra 1

    what are the factors of 31

    asked by Clayton
  134. biology

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

    asked by Zana
  135. pics in ethics

    i need pictures about ethics...

    asked by rosette
  136. Algebra 1

    what are the factors of 31

    asked by Clayton
  137. 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

    asked by Malyssa
  138. spell

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

    asked by need help
  139. math

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

    asked by jimmy
  140. 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?

    asked by John
  141. spelling

    i need a sentence for session and convulsion

    asked by cody
  142. geography

    does japan have a good or bad economy

    asked by joe
  143. weekly riddle


    asked by thad
  144. chem

    method of producing aspirin

    asked by dc
  145. english

    need to find a word with the letters "LTSEGRGU"

    asked by NANCY
  146. Calculus - Integrals

    What is the integral of arctan x?

    asked by Sean
  147. 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

    asked by Alarena
  148. Algebra

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

    asked by Bradley
  149. 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

    asked by Lynn
  150. physics

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

    asked by barr