Questions Asked on
October 24, 2009

  1. statastics

    21. Payne (2001) gave participants a computerized task in which they first see a face and then a picture of either a gun or a tool. The task was to press one button if it was a tool and a different one if it was a gun. Unknown to the participants while

    asked by mary
  2. geometry

    Name three regular polygons that will tessellate the plane

    asked by jeng
  3. geometry

    Figures that correspond under a translation, rotation, or reflection are said to be translation congruent, rotation congruent, or reflection congruent. Position two congruent figures on a piece of paper to satisfy each combination of congruences listed.

    asked by jeng
  4. geometry

    Why does a regular pentagon not tessellate the plane?

    asked by jeng
  5. geometry

    tell if the figure is a star polygon, a polygon, or other, and how many sides it has. {9/3}

    asked by jeng
  6. geometry

    a. Describe the different types of planes of symmetry and axes of symmetry of a regular octahedron. b. How many planes and axes of symmetry does a regular octahedron have? c. Make a sketch and compare the symmetry properties of a regular octahedron and a

    asked by jeng
  7. geometry

    Answer the following questions to determine why Euler’s formula continues to hold for the polyhedron formed by cutting corners off of an octahedron, as in Figure 11.35(b): a. For an octahedron V = , ____,F = ____, and E = _____. b. When you slice off one

    asked by jeng
  8. geometry

    Name three regular polygons that will tessellate the plane

    asked by jeng
  9. Biology

    Anaerobic fermentation in yeast produces (include all of the final products). A. Lactic acid, NAD and CO2 B. Lactic acid and NADH C. Lactic acid, NADH and CO2 D. Lactic acid and NAD E. Ethanol and CO2 F. Ethanol, NADH and CO2 G. Ethanol, NAD and CO2 H.

    asked by blair
  10. algebra

    during the first trip a canoeist travels 79 miles at a certain speed. the canoist travels 24 miles on the second part of the trip at a speed of 5 mph slower. the total time for the trip is 5 hrs. what was the speed on each part of the trip

    asked by anonymous
  11. Biology

    Which monosaccharide requires the most steps to proceed through glycolysis? A. Glucose B. Galactose C. Fructose

    asked by blair
  12. Biology

    Which is the most common complex carbohydrate on earth? A. Starch B. Glycogen C. Cellulose D. Hemicellulose E. Chitin

    asked by blair
  13. Science

    Mass= 48g; volume=24 cm3 . What is the density of this substance ?

    asked by Carlos
  14. programming

    I really need help in this it makes me confuse.I should make a program to find a pattern...so can somebody help me... Write a function to recognize an pattern within another array. Your function should have the following prototype. const int

    asked by Ryan
  15. physic

    Please help me I have no idea how to do this problem at all. Question:A sledge loaded with bricks has a total mass of 17.8 kg and is pulled at constant speed by a rope inclined at 20.8° above the horizontal. The sledge moves a distance of 20.6 m on a

    asked by Chan
  16. physics

    A 1.30 kg toaster is not plugged in. The coefficient of static friction between the toaster and a horizontal countertop is 0.400. To make the toaster start moving you carelessly pull on its electric cord. (a) For the cord tension to be as small as

    asked by blair
  17. English1A

    I'm still having a bit of trouble with my introduction and thesis. This is what I have, I hope it's any better. Greetings and Gestures All culture groups have various ways of communicating with each other whether it is through speaking, sign language, or

    asked by Kuromi
  18. chemistry.

    A student was asked to make some copper(II) sulfate-5-5 (CuSO4.5(H2O) BY reacting copper(II) oxide (CuO) with sulfuric acid. a) Calculate the molar mass of the copper (II) sulfate-5-water which is (64+32+64) + (10+80)=250 mol b)Calculate the amount (in

    asked by Denmark
  19. Chemistry

    What will happen to a well stoppered bottle filled with water left in the freezer overnight?

    asked by Anonymous
  20. Chemistry

    What is the purpose of adding quicklime to the soil?

    asked by Anonymous
  21. Mathematics

    The surface area of a piece of gold is directly proportional to the square of its weight. By what ratio should the weight be adjusted so as to double the surface area.

    asked by Anonymous
  22. Literature

    What would be a good start for an introduction for a persuasive essay on proving that learning about literature is relevant and/or valuable in some way. I don't want anyone to write anything for me but ideas would be greatly appreciated.

    asked by Anonymous
  23. German

    Hallo Leute! Hy everybody! Ich brauche HIlfe= I need help! Weisst jemand, wie soll man eine Buchbesprechung schreiben? = How to write a book-essay? danke, thanks

    asked by Lulu
  24. english

    CAN SOMEONE HELP ME IN GETTING STARTED WRITING A NARRATIVE POEM IN THE ANGLO-SAXON STYLE OF BEOWULF?

    asked by ECHO
  25. Physics

    A 2-hp motor drives a sanding belt. If the efficiency of the motor is 87% and that of the sanding belt 75% due to slippage, what is the overall efficiency of the system? The answer has to be 65.25%. Can someone please help me to work it out?

    asked by Claire
  26. Chemistry

    Zinc coats Iron and prevents it from rusting. However Iron cannot be used to coat zinc and prevent it from corroding.Explain this phenomenon.HELP PLEASE URGENT!!

    asked by Belinda
  27. Chemistry

    You are confronted with an unknown metal, M, and need to determine its identity. Using the following information identify the metal. M(s) Reacts vigorously with water and acid. M(s) does not react with K+(aq) M(s) reacts with Co+2(aq) M(s) does not react

    asked by Anonymous
  28. Chemistry

    You are confronted with an unknown metal, M, and need to determine its identity. Using the following information identify the metal. M(s) Reacts vigorously with water and acid. M(s) does not react with K+(aq) M(s) reacts with Co+2(aq) M(s) does not react

    asked by Anonymous
  29. Chemistry

    You are confronted with an unknown metal, M, and need to determine its identity. Using the following information identify the metal. M(s) Reacts vigorously with water and acid. M(s) does not react with K+(aq) M(s) reacts with Co+2(aq) M(s) does not react

    asked by Anonymous
  30. Chemistry

    You are confronted with an unknown metal, M, and need to determine its identity. Using the following information identify the metal. M(s) Reacts vigorously with water and acid. M(s) does not react with K+(aq) M(s) reacts with Co+2(aq) M(s) does not react

    asked by Anonymous
  31. Florida studies weekly

    why can't we fnd many of the remains of the spanish missions in florida this period?

    asked by Isabella
  32. statistics

    What do these following symbols mean:X ¡Ü x - ¦Ì) / ¦Ò) X ¡Ý X ¡Ü

    asked by Jenean
  33. math

    it is greater than 43 and less than 52. if you add the digits the sum is 8. what is the number

    asked by Anonymous
  34. Math Help

    Use the mean value theorem to determine the value of c, given that f(x) = cos 5x. I got f(x)=cos 9.96. Pls check

    asked by Beta plus
  35. geography

    i have to make a collage of four towns in britain help !!!!

    asked by aaron
  36. latin

    I need help putting a few words into the dative case. 1)parvus puer 2)rex fortis thank you in advance

    asked by Chadwick
  37. medical coding and billing

    differentiate between the official coding guidelines for using v codes in an inpatient and outpatient settings

    asked by lisa
  38. Geography

    48. Discuss the various patterns of prevailing wind in each area of latitude (low, middle, high) --I posted this yesterday and bobpursley told me I had some wrong information so I fixed up the essay a bit. Is it OK? The air movements toward the equator are

    asked by mysterychicken
  39. social studies

    Excuse me can some one please tell me why we can't find many of the Spanish missions from this period in Florida. Sincerrly, Stacy Goodman

    asked by Stacy
  40. Calculus

    find the acceleration at time t=9s if the position (in cm) of a particle moving along a line is s(t)=6t^3-7t^2-9t+2 at time t.

    asked by Anonymous
  41. Social Studies

    Who called Julius Caesar the "divine Julius" ? Thanks:)

    asked by Nicky
  42. Trig

    The state highway commission has decided to build a bridge over a dangerous railroad crossing. The approach ramp has to be constructed so that the bridge is 10 meters above the track. If the maximum desired grade of this ramp is 4 degrees, how far back

    asked by Anonymous
  43. Trig

    Your school is getting a 10,000 seat stadium to hold spectators for your home football and baseball games. For each row of seats, which rise like stairs, the dimensions are 30 inches wide and 12 inches deep. What is the pitch(angle) by which the rows of

    asked by Anonymous
  44. science

    Napolweon pencil has a mass of 3 grams (0.27Napoleon ) when he lifts his pencil from the desk to his paper he moves it an average of 20cm (o.20m) He then returns it to his desk moving it another 20cm How much work did he do on his pencil? w=FXD

    asked by Barbara
  45. science

    Mr.wilinson carried his backpack 12kilometers and set up camp on the edge of cutthroat lake it took him 3 hours to get there from the trailhead how much work did he do on his backpack on the hike in?(1pound=453.7grams=4.1newtons)EXPAIN

    asked by Barbara
  46. Math

    Find the Cartesian product B × A. A = {3, 5, 9, 7} B = {0, 1} Is it {(0, 3), (0, 5), (0, 9), (0, 7), (1, 3), (1, 5), (1, 9), (1, 7)}

    asked by Anonymous
  47. biology

    how was vinegar able to remove the calcium shell of an egg?

    asked by maribel
  48. Math

    Find the LCM for the given numbers by an appropriate method. 135, 56, and 150

    asked by Anonymous
  49. Math

    Find the least number divisible by each natural number less than or equal to 10.

    asked by Anonymous
  50. animal research

    can some list some stuff loggerhead sea turtle do in its life style? please and thank you

    asked by anonymous
  51. science

    Mrs leuenberger ran the same marathon but since her husband was hunting and she couldn"t find a babysitter she had to carrY her two daughter in her arms they weighs 40pounds and 55 pounds mrs leuenberger weights 145pound (butyou didn't hear that from me)

    asked by Keria
  52. Math

    Would the answer to (-1)^5 be -5?

    asked by Anonymous
  53. science

    Napolweon pencil has a mass of 3 grams (0.27Napoleon ) when he lifts his pencil from the desk to his paper he moves it an average of 20cm (o.20m) He then returns it to his desk moving it another 20cm How much work did he do on his pencil? w=FXD

    asked by Barbara
  54. Math

    Convert to standard notation. 7.53 × 10^3. Can someone show me the proper way to do this?

    asked by Anonymous
  55. 12th grade Physics

    how much tension must a rope withstand if it is used to accelerate a 1200-kg car vertically upward at .80 m/s^2?

    asked by Jane
  56. Math-Fractions

    Solve the proportion. 2/5=x-4/4

    asked by Anonymous
  57. Math

    Find the simple interest for the indicated length of time. $7915 at 9% interest for 9 months?

    asked by Anonymous
  58. Chemistry

    I have Sodium Benzoate and Benzyl Alcohol in a solution. I used an ether to separate the two. I know the alcohol dissolved into the ether and benzoate stayed in the aqueous solution. However, So my question is.. why the alcohol is able to dissolve better

    asked by DL
  59. Physics

    a 75-kg petty theif wants to escape from a third story window. unfortunately a makeshift rope of sheets tied together can support a mass of only 58 kg. how might the theif use this rope? give a quantitative answer.

    asked by Sasha
  60. Geometry

    A polyhedron has 33 edges and 20 faces. How many vertices does it have?

    asked by Clair
  61. algebra

    how do you solve 2(2^2x)-5(2^x)+2=0 for x

    asked by amelia
  62. Math

    9-1/2y=4x Solve for y.

    asked by Krisy
  63. Math

    Determine whether the statement is true, false, or sometimes true. Explain or show why. If x is positive and y = -x, then xy is negative. Is this always true or sometimes true?

    asked by Anonymous
  64. social studies

    why we can't find many of the Spanish missions from this period in Florida?

    asked by ellie
  65. Math

    y+5/3=x+2

    asked by Ray
  66. biology

    describe the role of mitochondria in the metabolism of eukaryotic cells.

    asked by Anonymous
  67. hindu arabic conversion

    does anyone know where I can find a conversion chart of the Hindu Arabic numeral system? Everything I have searched just brings me to Roman numeral

    asked by Anonymous
  68. Physics

    A rock of a mass 0.2kg is attatched to a 0.75m long string and swung in a vertical plane. What is the slowest speed that the rock can travel and still maintain a circular path. so, i started with the following equation: Fc= mv2/r but where do i go from

    asked by NeedHelp!
  69. Essay for College Appl

    --- I want to say something along the lines of ...even though it may make a little difference it still is a difference. any suggestions on how to say this intelligently?

    asked by bubba
  70. Math

    prove lim x->0 sinx/x=1

    asked by Salman
  71. chemistry

    how would you prepare a 500 mL of 0.020M KMnO4 solution?

    asked by tumcee
  72. Geography

    16. Why was the Sahel's location important to the early empire of Ghana? a. its location in the Sahara made it difficult to attack. b. its coastal location gave it vast fishing resources c. the Sahel was the trade link between the Mediterranean coast and

    asked by mysterychicken
  73. accounting

    Cournot Company sells 100,000 wrenches for $12 a unit. Fixed costs are $300,000, and net income is $200,000. What should be reported as variable expenses in the CVP income statement? (a) $700,000. (c) $500,000. (b) $900,000. (d) $1,000,000.

    asked by kathy
  74. Math 156

    Decide whether the following statement is true or false and justify your answer. if n(A) < n(B), then A( B

    asked by Rmz
  75. Pigskin Geography

    What are the Interstates for pigskin week seven. They are like the last problems and I can't find them anywhere.!!

    asked by LALA
  76. Japanese Question

    What do these four sentences mean: 1. Kono hon wa anata no desu ka. 2. Enpitsu wa soko desu. 3. Soko wa enpitsu desu. 4. Koko wa anata no shashin desu.

    asked by Stephanie
  77. 3rd grade

    Dean works with baby animals at a Zoo. This week he measured a giraffe, an ape and a tiger. The tiger had grown 4 inches less than the giraffe. The giraffe had grown twice as much as the ape. The baby ape had grown 6 inches since it was measured the last

    asked by jay
  78. Math 156

    Yesterday 12 students brought their lunches from home. 7 of the students had peanut butter sandwiches and 5 of the students had 5 apples. Did 7+5=12 students have peanut butter sandwiches or apples in their lunches? Why or Why not?

    asked by Rmz
  79. Technology

    is there anything i should add to my answer: 1. There are seven inputs common to all technological systems. List these inputs and give an example of each one. There are seven inputs common to all technological systems. These include people, materials,

    asked by y912
  80. Technology

    is there anything i should add to my answer: 1. List the four major categories of technology and give one positive example of each one in your life. (im not sure if these are the four categories:) The four major categories of technology are communication

    asked by y912
  81. Geography

    20. What role do West African women play in the region's economy? a. tradition will not allow women to work outside the home b. women make most of the economic decisions in West Africa's matriarchal society c. women help grow crops and run local markets d.

    asked by mysterychicken
  82. Geometry

    Will any kite tessellate the plane? why or why not?

    asked by jj
  83. Pigskin Geography

    Does anyone know the interstates for week seven. Ithink its numbers 12-15 or something like that

    asked by LALA
  84. pre calc

    Solve: (x+5/x)+(6/x-4)=(-7/x^2-4x) I multiplied the entire function by x and x-4 and after doing that I got down to the quadratic equation x^2+7x-13=0 I did the quadratic and got x=1.525 and -8.525 I feel like I made a mistake because when I plug in both

    asked by Muffy
  85. Ms. Sue please help

    Pigskin week seven interstates help please

    asked by LALA
  86. Trig

    Verify the Identity (sin m +sin n)/ (cos m + cos n) = tan(m + n/2)

    asked by Steve
  87. Math 156

    Use the distributive property to solve: (x+10)*(3x+2)

    asked by Rmz
  88. math

    find the slope-intercept equation of the line that has given characteristics slope = 3 and y-intercept is (0,9) the slope equation is y= how do I start this? I don't know why I always freeze up.. can someone please help me?

    asked by Anonymous
  89. math

    are these two lines perpendicular? x+2y=5 2x+4y=7 How do I determine if these two are perpendicular?

    asked by Anonymous
  90. math

    are these two lines perpendicular? x+2y=5 2x+4y=7 How do I determine if these two are perpendicular?

    asked by Anonymous
  91. computers

    . When you link a worksheet and a chart in a business report as well as on a slide, which Microsoft Office applications are integrated? A. Word, Excel, PowerPoint B. Excel, Access, Word C. Word, Access, PowerPoint D. Excel, PowerPoint, Publisher 2. Which

    asked by suzy
  92. music

    Many composers of the Impressionist era wrote harmonies consisting of chords that moved in _______ motion.

    asked by Anonymous
  93. algebra

    you are driving at a speed of 55 miles per hour to your sister's house. at 1pm, you are 150 miles from her house. write an equation that models the distance from you sister's house in terms of the number of hours since 1pm.

    asked by rachel
  94. spanish

    What Does This MEan?? te llams me gusta comer es coreer

    asked by Thomas
  95. Geography

    48. Discuss the various patterns of prevailing wind in each area of latitude (low, middle, high) --I posted this yesterday and bobpursley told me I had some wrong information so I fixed up the essay a bit. Is it OK? The air movements toward the equator are

    asked by mysterychicken
  96. latin

    how do you say intelligent, athletic and funny in latin?

    asked by chris
  97. Physics

    How much pressure is required to crack an egg under water Is there like a table I could look at that has values for how much pressure things can withstand before cracking

    asked by Physics
  98. Math subject Calculus

    Hi there I am having some difficulties to solve this problem from my homework package and i don't understand how to approach this problem. Please help me by giving me advice on how to approach this problem. Let z = xsin(x/y), y does not equal zero. Show

    asked by shylo
  99. spanish sra JMcGuin

    1. Approximately what percentage of the world's Spanish-speaking population lives in the United States? 5 9 14 2. According to the Guinness record book, how many letters does the longest Spanish word have? 22 29 42 3. The word chocolate came to Spanish

    asked by sam
  100. Pre Calc still confused

    Solve: (x+5/x)+(6/x-4)=(-7/x^2-4x) I multiplied the entire function by x and x-4 and after doing that I got down to the quadratic equation x^2+7x-13=0 I did the quadratic and got x=1.525 and -8.525 I feel like I made a mistake because when I plug in both

    asked by Muffy
  101. Math

    g(x)= 8/10-9x would the correct answer be a) {xIx is a real number and x ==/== 10/9? b){xIxis a real number and x equals lesser or equal to >_ 10/9 c){xIx is a real number and x =/= 0 d){xIx is a real number and x =/= 8 my answer is c is this correct?

    asked by Anonymous
  102. calculus

    f(x) = (3x^2) (csc4x)^4 // f'(x)=? my notes say : f'(x) = (3x^2)5(csc4x)^4(-csc(4x)(tan4x)(4)+(csc4x)^5(6) I redid it and i got : f'(x) = (3x^2)5(csc4x)^4(-csc4x)(cot4x)(4) + (csc4x)^5(6x) which is correct? if its my notes why?

    asked by Laura
  103. math

    using method of partial fractions to decompose this 1/(x-3)(x+3) is 1/6(x-3)-1/6(x+3) correct or have i gone wrong somewhere

    asked by mousey
  104. Math

    g(x)= 8/10-9x would the correct answer be a) {xIx is a real number and x ==/== 10/9? b){xIxis a real number and x equals lesser or equal to >_ 10/9 c){xIx is a real number and x =/= 0 d){xIx is a real number and x =/= 8 my answer is c is this correct?

    asked by Anonymous
  105. Chemistry

    CO + 2H2 ---> CH3OH Change in heat= -90.7 KJ/mol Calculate the mass of hydrogen formed when the change in heat is +90.7 KJ/mol 2 moles of H2= 1 mole of CH3OH 2(1x2)g 2(2)g =4g Am I correct?

    asked by Anonymous
  106. College Algebra

    I need help with the following problem. I do not understand how to finish working it. -3y^4/5+72=-15 -3y^4/5=-87 y^4/5=29 y=29^5/4 What next? Round answer to two decimal places. Thanks for your help.

    asked by Lucy
  107. 6th grade

    What is a letter to the editor? I'm doing a book report, but all I know is that I'm suppose to write if I would or wouldn't suggest this book to my classmates. I'm just wondering if that's all I have to do.

    asked by J.J.
  108. physics

    A 2.00 kg aluminum block and a 5.20 kg copper block are connected by a light string over a frictionless pulley. They sit on a steel surface, where θ = 28.0°. Determine the sum of the magnitudes of the forces of friction acting on the

    asked by blair
  109. equations

    The linear equation y=0.15x + 0.79 represents an estimate of the average cost of gas for year x starting in 1997. The year 1997 would be represented by x = 1, for example, as it is the first year in the study. Similarly, 2005 would be year 9, or x = 9.

    asked by Anonymous
  110. math

    How would I do this? A sum of money is divided among three persons, X,Y,Z, kn the ratio 10:7:5. If Y gets $14 more than Z, how much will X get and what is the total sum of money? There is no total sum so how do I find it?

    asked by Alex
  111. economics

    what is the correlation between increasing GDP and rising inflation or interest rates?

    asked by scooby9132002
  112. math

    1. unite similar terms with parenthesis. x=2 y=-3 and z=5 find the value of ax to the 2nd power-cy+ax-2ax to the 2nd power+ 2cy to the 2nd power-ax-cy to the 2nd power+ ax to the 2nd power+ cy

    asked by chris
  113. math

    solve and check results 3x + 7(x-2)-13=12-3x

    asked by chris
  114. English1A

    Writeacher, is this better? Greetings and Gestures Culture plays a large role on how individuals communicate with one another, including how they express themselves. There are various ways of communication such as through speaking, sign language, or body

    asked by Kuromi
  115. math

    mrs.ellis is 28 years older than her daughter. in 11 years she will be 3 times as old as her daughter. how old is each now?

    asked by chris
  116. chemistry.

    Write the symbols for three other species, which also have the electron arrangement of 2.8.

    asked by Denmark
  117. // calculus - derivatives

    y = sec(5x) / x^2 my notes say y' = 5x^2sec5xtan5x-2xsec5x i get y'= sec5x(-2x^-3)+sec5xtan5x(5)(x^-2) when i change it to (sec5x)(x^-2) or by quotient rule [ (x^2)(sec5x)(tan5x)(5)-(sec5x)(2x) ] / (x^4) which is correct?

    asked by Laura
  118. physics

    A student drops a ball from the top of a tall building; the ball takes 2.8 s to reach the ground. 1. what was the ball's speed just before hitting the ground? 2. What is the height of the building? help please?

    asked by Fefe
  119. Physics

    A rock of a mass 0.2kg is attatched to a 0.75m long string and swung in a vertical plane. What is the slowest speed that the rock can travel and still maintain a circular path. so, i started with the following equation: Fc= mv2/r but where do i go from

    asked by Lila
  120. // calculus - trig derivatives

    how do i do i do y=cos(radt)+ rad(cost)? ---- f(x) = (3x^2) (csc4x)^4 // f'(x)=? my notes say : f'(x) = (3x^2)5(csc4x)^4(-csc(4x)(tan4x)(4)+(csc4x)^5(6) I redid it and i got : f'(x) = (3x^2)5(csc4x)^4(-csc4x)(cot4x)(4) + (csc4x)^5(6x) which is correct? if

    asked by Laura
  121. chemistry

    How do I figure this out? In the reaction CS2 + 3O2 → CO2 + 2SO2, when 160 g of CS2 and 195 g of O2 are reacted, the theoretical yield of SO2 is 260 g.

    asked by Chris
  122. earth science

    Why are some crystals large and perfect, while others are small and irregular? The only answer in my book that seems close is : The crystal shape, hardness, cleavage and density of a mineral are determined by the internal arrangement of its atoms or ions.

    asked by devils
  123. Algebra 2 honours

    can someone please tell me how to factor out (x^6+1)^4? please show me how you got the answer... Thank You... :D

    asked by Suchindram
  124. Social Responsibility

    Social Responsibility at School Explain the importance of social responsibility and independent action. I don't how to answer this question. I've searched on GOOGLE for 'social responsibility' but all the results are about corporate social responsibility.

    asked by John
  125. math115

    find lowest common multiple of 24,15,44=1 or none

    asked by Celia
  126. Math

    14. There is a rectangular piece of property that measures 188 ft by 100 ft. On the property there is a circular lake with a diameter of 72 ft. In the center of the lake there is a circular island with radius of 12 ft. The rest of the property is land.

    asked by jarod
  127. sra jmcguin

    Hi sra does these look okay now - every last point counts atteh end of the quarter I could have a 4.0 this quarter - serioulsy I am so gratful for all of your help. 1. Según el libro de récord Guinness, ¿cuántas letras tiene la palabra más larga de

    asked by sam
  128. Math

    Evaluate |-37-22|-|-11|=4

    asked by jarod
  129. science

    mr mcmurry taked 4327 sips of mountain dew each day. each time he takes a drink he moves the bottle 45cm to his mouth and another 45cm to his mouth and another 45cm back to the table .If the bottle has a massof 567 grams (5.1newtons)how much work does Mr

    asked by Glenn
  130. Physics

    what does it mean to have a constant acceleration does that mean that a= 0 or a=x? I particularly need help with::::>> Suppose the pilot, starting again from rest, opens the throttle only partway. At a constant acceleration, the airboat then covers a

    asked by Brit
  131. science

    a box pushed across the floor for a dis tance of 5 meters with a force of 50 newtons in 5 second how much work is done? what is the power?

    asked by sherrie
  132. physics

    In Figure (a), a block of mass m lies on a horizontal frictionless surface and is attached to one end of a horizontal spring (spring constant k) whose other end is fixed. The block is initially at rest at the position where the spring is unstretched (x =

    asked by Jin
  133. science

    Mr beck gigantic gas guzzling exhaust spewing urban assault vehicle suburban weighs 10000ponds it takes mr becck 2 minutes to drive 1.5 kilometers to west valley fitness so he can ride the stationary exercise bike for a half hour How much work and power

    asked by sherrie
  134. MELODY

    The parachute on a race car of weight 8850 N opens at the end of a quarter-mile run when the car is traveling at 31 m/s. What total retarding force must be supplied by the parachute to stop the car in a distance of 1000 m? [so for this one, i need to know

    asked by Melody
  135. science

    mrs rossow ran the Yakima river cayons marathon the course is 27.2 miles long and it took her 2 hours and 15 minutes to finish if she weighs 135pounds calculate the work and power she used. A.work B.power

    asked by sherrie
  136. science

    a mr wikinson backpack weighs 45 pounds if there are 453.7grams in one pound what is the mass of his backpack?

    asked by keria
  137. Math Analysis

    6. Prove that f(x) = (3/4)x^4 + 2 and g(x) = (4sqrt(108x-216))/3 are inverses. I know you solve it with composite functions f(g(x)) and g(f(x)), and I solved f(g(x)), but I can't seem to solve g(f(x)) to equal x, like it should. Can someone show me how to

    asked by Emily
  138. Math

    Evaluate |-37-22|-|-11|=4

    asked by Jarod
  139. math finals

    14. There is a rectangular piece of property that measures 188 ft by 100 ft. On the property there is a circular lake with a diameter of 72 ft. In the center of the lake there is a circular island with radius of 12 ft. The rest of the property is land.

    asked by Jarod
  140. science

    a 49 newton rockis lifted 2meters in 5 seconds How much work is done? b what power is used?

    asked by Barb
  141. science

    a teacher pushed a 98 newton desk acrosss a floor for a distance of 5 meters she exerted a horizontal force of 20 newton How much work was done?

    asked by Barb
  142. ELA

    What is the difference between memoirs and biographies????????????

    asked by Sumaiya
  143. science

    a womans lifts a 300 newton child a distance of 1.5 meters and carries her forward for 6.5meters. how much work does the woman do in lifting the child? b.how much work does the child do?

    asked by Barb
  144. Physics

    (a).A 220-kg sleigh is pulled by one horse at constant velocity for 0.90 km on a snowy, horizontal surface, the coefficient of kinetic friction between the sleigh runners and snow is 0.27. What power must the horse deliver to the sleigh for the trip to

    asked by Sandhu
  145. math115

    Please help You find an old savings bond that originally cost $50. It has been compounding 3% interest annually for the last 75 years. How much is it worth? Make sure you round your answer to the nearest cent.$459

    asked by margie o
  146. math

    what would the graph of this look like xy

    asked by lyne
  147. physics

    Suppose that in the same Atwood setup another string is attached to the bottom of m1 and a constant force f is applied, retarding the upward motion of m1. If m1 = 5.30 kg and m2 = 10.60 kg, what value of f will reduce the acceleration of the system by 50%?

    asked by TPAIN
  148. 4th grade

    clues:i am less than 100 the sum of my digit is 8 if you divide me by 2,iam an even number my tens digit and my ones digit are the same

    asked by amy
  149. Physics

    Suppose that in the same Atwood setup another string is attached to the bottom of m1 and a constant force f is applied, retarding the upward motion of m1. If m1 = 5.30 kg and m2 = 10.60 kg, what value of f will reduce the acceleration of the system by 50%?

    asked by Rachel
  150. Math

    Please help You find an old savings bond that originally cost $50. It has been compounding 3% interest annually for the last 75 years. How much is it worth? Make sure you round your answer to the nearest cent.$459

    asked by margie o
  151. Math

    Evaluate |-37-22|-|-11|=4

    asked by Jarod
  152. Algebra

    How do you factor 1/2x^3-x so that the zeroes can be found? Thank you-Adriana

    asked by Adriana
  153. environmental science

    1. Checkpoint: Population Size • View the Ch. 7 Alien Invasion VLR located under the Week Four Materials section of your student Web page. • Post a 200- to 300-word response to the following: o Explain the four factors that produce changes in

    asked by m
  154. Physics

    The tracks of Angel's flight extend 96.0 m along the side of a hill at an angle of 18.4 degrees with respect to the horizontal. If each car has a passenger with a mass of 70.0 kg, what is the total mechanical energy associated with the two passengers when

    asked by lalaglaze
  155. Chemistry

    A quantity of N2 occupies a volume of 1 L at 290 K and 1.5 atm. The gas expands to a volume of 2.7 L as the result of a change in both temperature and pressure. Find the density of the gas at these new conditions (in grams per liter).

    asked by .
  156. Calculus

    ok I don't understand how this was done inergral(y2 and y1) pgywdy = 1/2 pgw(y2^2 - Y1^2) ok it's been a while sense calc I rember you add one to the power of the term that was a dervitative and divide by that power hence (1/2)(y2^2 - Y1^2) but what

    asked by Calculus
  157. Physics

    A sign is supported by a cable and a horizontal beam.The beam has a length 1.4 m and a uniform mass of12 kg.a) If the cable is attached to the beam at a distance of 1.0 m from the hinge, what is the tension in the cable? (b) If the cable breaks, what is

    asked by Sandhu
  158. math

    Richard's age in 7 years will be twice what it was 19 years ago. How old is Richard now?

    asked by Bob roboto
  159. Advanced Functions

    A rectangle has perimeter 64cm and area 23cm squared. Solve the following system of equations to find the rectangle's dimensions. l=(23/w) l+w=32

    asked by Anonymous
  160. Math

    Arectangle has perimeter 64cm and area 23cmsquared. Solve the following system of equations to find the rectangle's dimensions.

    asked by Ariza
  161. physic

    please help, I really appriciate you help alot. Question:A 0.34 kg particle has a speed of 2.0 m/s at point A and kinetic energy of 7.5 J at point B. (a) What is its kinetic energy at A? ___ J (b) What is its speed at point B? ____ m/s (c) What is the

    asked by Chan
  162. Medical Law and Ethics

    Trying to summarize the duties of the public duties of the physician as specified by law. I cant figure out how to put all that information into 2 or 3 paragraphs.

    asked by tamara jones