1. Physics

    A hoop starts from rest at a height 1.8 m above the base of an inclined plane and rolls down under the influence of gravity. What is the linear speed of the hoop's center of mass just as the hoop leaves the incline and rolls onto a horizontal surface?

    asked by David on February 17, 2016
  2. Finding and evaluating sources

    Question 18 Of the following sources, which would provide the most in-depth information? full-text journal article from library database newspaper article article abstract from library database general encyclopedia article Question 19 Publication dates

    asked by christopher on April 27, 2010
  3. AS Physics

    A driver leaves his car without applying the hand brakes on a road inclined at an angle of 25 degrees. The car starts to roll down the road with the driver chasing from behind after moving a distance of 20 m the speed of the car is 5.0 ms-1. Calculate the

    asked by Ariana on October 4, 2014
  4. algebra

    a point on one bank he finds the angle of elevation of the top of a tree on the other bank to be 60 degress. from his initial observation point he walks back 200 feet in a straight line with the tree and his first observation point and finds the angle of

    asked by alex on July 19, 2011
  5. physics I

    A lost shipping container is found resting on the ocean floor and completely submerged. The container is 5.4 m long, 2.3 m wide, and 2.4 m high. Salvage experts attach a spherical balloon to the top of the container and inflate it with air pumped down from

    asked by Astro on December 9, 2014
  6. Science - DrBob222

    tocainide – a drug that has been used to restore a regular heartbeat in patients with arrhythmia. .................................. ….....CH3.........O............. ......__/...........||............ .....//\\_______N___C___CH___NH2..

    asked by Sean on February 6, 2007
  7. computer

    The Word feature that stores frequently used words and the current date so they can be easily inserted into a document is A. AutoComplete. C. AutoShapes. B. AutoText. D. AutoFormat. 12. When pointed over text within a paragraph, the cursor takes the shape

    asked by saint on December 17, 2010
  8. math

    Researchers discovered a large group of krib that was more than 30,000 feet long. About how long is 30,000 feet, measured in the number of krill?

    asked by stephanie on September 13, 2011
  9. math

    . A Boeing 747 jet is approximately 230 ft long and has a wingspan of 195 ft. If a scale model of the plane is about 40 cm long, what is the model’s wingspan?

    asked by kirk on March 17, 2010
  10. calculus

    A certain clock has a minute hand that is 4 inches long and an hour hand is 3 inches long. How fast is the distance between the tips of the hands changing at 9:00?

    asked by Chelsea on November 24, 2010
  11. Math HELP!!

    Gina uses a magnifying glass to look at bugs. A caterpillar that is 2 inches long appears 4.5 inches long through the glass. What is the scale factor? (1 point) 2.25 ** 0.4 9 2.5

    asked by lily stoner on November 3, 2016
  12. Math

    The radius of this circle is one unit. Find the exact lengths of the legs in the right triangle if: Sides a is twice as long as side b. And Sides b is twice as long as side a.

    asked by David on December 12, 2015
  13. Math

    Killer robots are trying to take over the world. They know the password to the doomsday weapon is 5 digits long and contains either 0 or 1, and either 2 or 3, and either 4 or 5, and either 6 or 7, and either 8 or 9. If the robots can enter 5 passwords per

    asked by John on February 19, 2013
  14. math

    The cylindrical bar is 20 cm long and has a diameter of 7 cm. Each side of the cube is 9 cm long. The surface of the solid was painted, what area in area in cm2 was painted? (Take π

    asked by Holiday on January 10, 2015
  15. Math Help

    The radius of this circle is one unit. Find the exact lengths of the legs in the right triangle if: Sides a is twice as long as side b. And Sides b is twice as long as side a.

    asked by David on December 12, 2015
  16. math

    A classroom is 10 yards long.THE floor is being tiled with new tiles that are each 10 inches long.HOW MANY TILES ARE NEEDED TO MAKE 1 ROW the length of the classroom

    asked by reeree on November 17, 2011
  17. dma040

    42inch board is cut into 3peices. Peice 2 is twice as long as the 1st & 3rd peice. Peice 3 is three times as long as peice 1. What are the lengths of all 3 peices? Pc 1 Pc 2 Pc 3

    asked by Anonymous on September 16, 2013
  18. physics

    A 200m long train crosses a 400m long bridge with a speed of 36km/hr . Calculate the time taken by train to cross the bridge?

    asked by Maihul on July 5, 2012
  19. Math

    A Boeing 747 jet is approximately 230 ft. long and has a wingspan of 195 ft. If a scale model of the plane is about 40 cm long, what is the model’s wingspan?

    asked by Kirk on March 18, 2010
  20. math

    A walkway forms a diagonal of a square playground. The walkway is 24 meters long to the nearest tenth of a meter. How long is the side of the playground?

    asked by ranz on January 24, 2017
  21. calculus

    A certain clock has a minute hand that is 4 inches long and an hour hand is 3 inches long. How fast is the distance between the tips of the hands changing at 9:00?

    asked by Chelsea on November 24, 2010
  22. trig

    a tree casts a shadow 36 ft long. at the same timem the shadow cast by a vertical 7 ft pole is 4ft long. find the hight of the tree

    asked by hails on September 6, 2011
  23. Physics

    A tunnel is 800 m long.A 100 m long train crosses the tunnel at a speed of 30m/s.Find the time taken by the train to cross it.

    asked by Avinandan on July 18, 2016
  24. trig

    a tree casts a shadow 36 ft long. at the same timem the shadow cast by a vertical 7 ft pole is 4ft long. find the hight of the tree

    asked by hails on September 6, 2011
  25. Math

    The caribou population of an area has been growing at an annual rate of 2% , A) If there are 850 initially, how long before there is a 1000? B)How long for it to double? x 1000=850(1.02)

    asked by Anonymous on May 4, 2013
  26. Math

    The caribou population of an area has been growing at an annual rate of 2% , A) If there are 850 initially, how long before there is a 1000? B)How long for it to double? x 1000=850(1.02)

    asked by Anonymous on May 4, 2013
  27. Math

    The caribou population of an area has been growing at an annual rate of 2% , A) If there are 850 initially, how long before there is a 1000? B)How long for it to double? x 1000=850(1.02)

    asked by Anonymous on May 4, 2013
  28. Calculus

    On a certain clock the minute hand is 4 inches long and the hour hand is 3 inches long. How fast is the distance between the tips of the hands changing at 4 pm?

    asked by Joe on November 16, 2008
  29. Pre algebra

    A town clock has the minute hand that is 1.5 m long and an hour and that is 1.2 m long what is the approximate distance in meters between the ends of the hand at 9 o’clock/////plz help

    asked by Fortnite on October 4, 2018
  30. Geography

    How do the monsoons and the mountains influence the climate in South Asia? Include in your answer an analysis of how monsoons can be responsible for survival and hardship in this region. Monsoons greatly influence the climate in South Asia. In the winter,

    asked by Chandler on June 28, 2011
  31. physics

    An express subway train passes through an underground station. It enters at t = 0 with an initial velocity of 23.0 m/s and decelerates at a rate of 0.150 m/s2 as it goes through. The station in 210 m long. (a) How long is the nose of the train in the

    asked by Melissa on January 26, 2014
  32. physics

    An express subway train passes through an underground station. It enters at t = 0 with an initial velocity of 23.5 m/s and decelerates at a rate of 0.150 m/s2 as it goes through. The station in 215 m long. (a) How long is the nose of the train in the

    asked by mathew on November 18, 2014
  33. Algebra, Trig

    Question: A wind turbine has a total height of 50m, with 3 equally spaced blades that are 16m in diameter. 1) Create equations modelling the height of points on the tips of blades One, Two and Three. Graph these three curves on one graph. [Answers: Blade

    asked by Helena on October 20, 2017
  34. Critical Thinking

    Week 2: DQ #2 Credibility Due Thursday Read the following discussion question response written by Owen, a fictional Axia student. Identify areas of vagueness and ambiguity and discuss how you could clarify the email’s message using the writing principles

    asked by Debbie on December 3, 2008
  35. Further Mathematics Arithmetic Progression

    I have a problem solving the question below could someone help me solve it or at least give me a hint on how to solve it ? If you can help here is the question ; p,q,r are three consecutive terms of an A.P whose sum is 21. The ratio p:r = 6:1 , Find p:q:r.

    asked by Ini on January 21, 2018
  36. Anonymous -- Science question

    Anonymous -- Please click Post a New Question and then ask your question. Please be specific about the purpose of your science project, your grade, and the type of project that interests you.

    asked by Ms. Sue on January 27, 2007
  37. math

    I have a question is this cheating when we ask questions from our school work ? Wouldn't our on line school know we are kids are doing this ? What is an ethical homework question ? Curious..

    asked by Molly on February 2, 2013
  38. s103

    hello to all any one else stuck on question 5 of tma 6? We can't help if you don't post the question. hi wheezer - yes think they've sent out the tma in a foreign languauge, or am I just dumb? yes i agree lol

    asked by wheezer on March 7, 2007
  39. the remainder theorem - Please Help!!

    i'm really not sure how to do this question. (3x+2k)^3+(4x-7)^2 has a remainder of 33 when divided by x-3. find k. i tried to expand the expression, but i don't get a polynomial, so how do i apply the remainder theorem? i would really appreciate it if

    asked by hayley on January 14, 2008
  40. Science

    hello, we have got activity based question in school and it contains marks.. well here is the question Q1.if a person's wight is 355 N then that person would be (a)fat (b) normal (c) thin Thanks!

    asked by Rebecca Bhutto on February 5, 2010
  41. Data Management

    In a multiple choice test that contains ten questions with each question having five possible answers, what is the probability that Colin will pass the test if he merely guesses at each question?

    asked by Scott on May 22, 2014
  42. Math

    Hello, I'm doing a review sheet for math and a certain question states: "solve: ln(3/4)" What should I take solve to mean? Do I just change it's form to ln(3/4) = ln3 - ln 4 ? Or, perhaps, I need to actually enter in the value into a calculator. How would

    asked by Mary on September 12, 2012
  43. Math

    How to expand, then evaluate, and simplify this log question: logbase7 (49( 3sqrt x^5)) I put the brackets in myself, I there were originally no brackets nor spaces in the question

    asked by Kun on May 27, 2014
  44. Math

    How to expand, then evaluate, and simplify this log question: logbase7 (49( 3sqrt x^5)) I put the brackets in myself, I there were originally no brackets nor spaces in the question

    asked by Kun on May 28, 2014
  45. SS7R - HW Question Help!

    In my other post I wrote "I'm have other 3 that I want you to check to see if they are correct. BTW - I have one more question I have trouble with." Here it is: Why did the Louisiana Purchase important to the US? Please help! btw - I'm a little curious

    asked by Laruen on April 20, 2012
  46. Math

    Hello. I need help with this question. A coin is tossed and a number cube is rolled. What is P(heads, a number less than 5 A 1/3 B 5/12 C 2/3 D 5/6 Based on the Info given, i can not figure out the answer to this question.

    asked by Anonymous on June 8, 2014
  47. Spanish

    I don't understand this question. ¿Qué le diste a tu madre o a tu padre en su cumpleaños? btw I can't SHOW WHAT I THINK b/c I don't get the question. Thanks a bunch:)

    asked by Anonymous on July 12, 2008
  48. Math Check

    Hi! Can someone check my answer for this question? Thanks! Question: List the following circles in order based of their radius. List them from smallest to largest. A.) x^2+y^2-6x+8y-9=0 B.) (x-3)^2=9-(y+4)^2 C.) (y+4)^2=3-(x-3)^2 D.) (x-3)^2+(y+4)^2=1 My

    asked by Susie on May 15, 2015
  49. Pre-Cal (Math)

    An instructor has determined that students' grads on the final exam depend on the amount of time, t, they spend studying for it and can be modeled by the formula g(t)=(21t+10)/(20t+45). Note that the function's output is a fraction or decimal which should

    asked by Gio on February 17, 2016
  50. sci i think its b

    A student is trying to identify the different forms of energy described in the following chart: Form of Energy Description Examples Energy A energy that travels in waves through space light radio waves Energy B energy that depends on the height of an

    asked by somebody help i am new on November 12, 2014
  51. Mechanical Engineering

    a string ABCD is attached to two fixed points A and D, has two equal weights of 1000N attached to it at B and C. the weight rest with portions AB and CD inclined at angles of 30 degrees and 60 degrees respectively to the vertical. find the tension in

    asked by Anonymous on November 12, 2015
  52. Public Speaking(check)

    “To persuade my audience that drinking and driving laws should be stricter” aims for: A. passive agreement with a policy. B. active agreement with a policy. C. personal action to support a policy. D. personal agreement to support a policy.**** “To

    asked by Carpe_Diem on March 24, 2016
  53. Public Speaking(actually check please)

    “To persuade my audience that drinking and driving laws should be stricter” aims for: A. passive agreement with a policy. B. active agreement with a policy. C. personal action to support a policy. D. personal agreement to support a policy.**** “To

    asked by Carpe_Diem on March 24, 2016
  54. physics

    An insulated copper wire is wrapped around an iron nail. The resulting coil of wire consists of 240 turns of wire that cover 1.8 cm of the nail, as shown in the figure . A current of 0.61 A passes through the wire. if the ferromagnetic properties of the

    asked by physics im dying on March 22, 2012
  55. Social Studies

    Need help with this question How may prejudice contribute to hate crimes against arabs, muslims, and other groups. Thanks Try the following sites by clicking the below long link:

    asked by clark on July 1, 2006
  56. Calculus

    A man has 340 yards of fencing for enclosing two separate fields, one of which is to be a rectangle twice as long as it is wide, and the other, a square. The square field must contain at least 100 square yards and the rectangular one must contain at least

    asked by Amy on February 6, 2012
  57. Physics

    For each of the following scenarios, indicate whether the oscillation period of the block becomes shorter, longer or remains unchanged. Note: you must clearly mark your answer (for example, highlight it in red) from the multiple-choice list below and you

    asked by Anonymous on July 9, 2013
  58. History

    Please can you explain what this question means. I don't understand the question especially 'carbon'. Design your own carbon to describe main points of treaty of versailles. Many thanks

    asked by Peter on September 12, 2012
  59. Chemistry

    Could someone help out with the second question. Its about reagents. Click the link for the question. img*photobucket*com/albums/v712/DeadMan986/Q20-21*jpg All of the . are replaced with * in the link

    asked by Jules on April 28, 2011
  60. programming ( qbasic)

    I am stuck in this question. I don't know how to proceed The question ? If A=1 , B=2 ,C=3 , D=4, E=5 ........................................... then print the sum of the user entered word .. ( if the user enters ABC, then the output must come :" 6 " ..

    asked by Clive on June 22, 2015
  61. Genetics!!!

    What is a genetic pattern for a trait and what determines chemical bond type? (these questions are for a crossword) the first question goes in this structure: _ e _ _ _ _ _ _ the second question goes in this structure: _ a _ t _ _ _ thank you so very much

    asked by Jen on February 16, 2007
  62. org. chem

    The question asks, "draw the hemiacetal obtained by addition of ethanol 2-methylpentanal" My question is how to do this problem? I know you can't actually draw it out on this site. However so I know how to do it on the upcoming test. Thanks :)

    asked by meghan on February 11, 2013
  63. french

    How can I say "I don't know how to answer that question." in french? I wrote: Je ne sais pas comment reponds a cet question. I don't feel like that is correct, can someone help me?

    asked by please on June 13, 2010
  64. com220

    the question is based on the above questions, Elaborate on the authorship pn one of the sources that you consider reliable. My answer was do you think that what are the author's credentials would be consider a reliable. I don't have to anser the those

    asked by lisa on October 11, 2008
  65. 9th grade

    My question is on scales etc.. heres the question | The Sears Tower is 1450 feet tall. If a model is 25 inches tall, find the scale.

    asked by bollocks on February 27, 2009
  66. Algebra

    I have one more question I need to ask about algebra, this one is a perform the indicated operation question. 4x 5x ----- - ---- x^2-9 x^2+4x-+3 I am really confused on the -+3 part, I don't know if my teacher made a typo or what, because without the - in

    asked by Jeff on March 18, 2008
  67. Englush

    Hi again, I have another question for the novel 'in the heat of the night' for chapter three. Here it is , Give the significance of the following, 'That's what he's got a shirttail for.' 'Like I said, Virgil, we know our business down here. Go home.' if

    asked by Sarah Smiuth on October 29, 2016
  68. College Algebra

    I am new to this graphing calculator. I input y=5^x and y=(5^x)-3 It is graphed with tables showing x=-3 y1=-374/125 and y2=1/125 x=-2 y1=-74/25 y2=1/25 my question is what is the relationship between the graphs. I am unclear on what the question is asking

    asked by Julie on June 26, 2013
  69. Organic Chemistry

    Sorry about the first posted request. The question has to do with the fermentation of ethanol from sucrose Please revisit the question and assist if possible. Thanks for your assistance. How does acetaldehyde impurity arise in the fermentation?

    asked by Kay on October 14, 2007
  70. math

    Please i need a help also to this question Mwajuma needs 70% to receive a grade C in a certain subject.If the exam has 120 questions and each question carry one mark(1%), how many questions should she answer correctly?

    asked by kelvin on May 21, 2018
  71. social studies please help

    My social studies teacher is going over the history of baseball for a fun lesson. The question is Who was the person that created baseball? Is there an answer or is that just a trick question? Thanks

    asked by Monay on February 24, 2009
  72. Math

    hi! I need help with this question please help! The question is: Each tire of a bicycle has a diameter of 26 inches. if you start pedaling and the tires make 10 complete rotations, how far has the bicycle traveled? Thanks! :]

    asked by Amy on April 26, 2012
  73. biology

    thank you for anwering my question Ms.Sue i just need you to explain it further on the question earlier.Is a scientific hypothesis accepted if there is no way to demonstrate that th e hypothesis is wrong ? thank you. please i need the explanation today.

    asked by rx on September 15, 2009
  74. research writing as a process

    Question 14 How does a thesis function? A.it points out the inadequacies of the opposing views B.it states your position Cit summarizes the information D.it asks a question Question 17 5 points Save Which of the following is not a debatable thesis

    asked by Christopher on April 28, 2010
  75. Calculus

    1. Prove that (f(x+h)-f(x-h))/2=f'(x) 2. Prove that any parabola sastifies the equation (f(x+h)-f(x-h))/2=f'(x) For the first question, I tried to solve it but there is an extra h tacked on to one side. I have no clue what to do for the second question.

    asked by Andre on February 2, 2016
  76. Human Services

    I have a problem with APA formatting and how to cite Example 1 According to McNamara, n.d The Question---my answer Or do I need to cite each question The amount of questions are about 100

    asked by Mary on February 10, 2012
  77. grammar

    Sensory was intact to light touch, proprioception, and pinprick. Question: preposition one for sure is there more? answer: to Question: Conjunctions answer: and Thank You

    asked by Leslie on May 9, 2011
  78. Spanish 7th grade-please check

    How doyou ask if a friend if they are hungry? Tienes hambre? If they are thirsty Tienes sed? Both should have upside down question marks before question

    asked by Beth on March 21, 2011
  79. Math and science

    a rock has a mass of 3000 grams what is the mass in kilograms that's the question we need to know how to be converted or figure this question out in the layman's term

    asked by Grace and dad on March 11, 2016
  80. Algebra 2

    Question #1:How do you solve for n: 1=10,000(0.97)^n-1 Question #2: n=1 t(n)=3906.25 n=2 t(n)= 3125 n=3 t(n)= 2500 n=4 t(n)= 2000 n=5 t(n)= 1600 The rule is t(n)=2000(0.8)^n-4 Is this correct?

    asked by Anonymous on October 26, 2012
  81. Spanish

    In Spanish, when do you use upside down exclamation points and question marks? Do you use it for EVERY question or EVERY statement involving an exclamation mark? Or do you use it for only certain questions

    asked by Anonymous on March 13, 2016
  82. Precalc

    Determine the x-intercepts of the polynomial function y=-6(x+7)^4 + 5. Round to two decimal places, if necessary. y=-6(x+7)^4 + 5 0=-6(x+7)^4 + 5 -5=6(x+7)^4 -5/6 =(x+7)^4 There are no x-intercepts?? No one has answered this question yet. Answer this

    asked by Anonymous on December 9, 2011
  83. Account,communication-skill,Economics,Business Law

    Make a speech,Your md is 70year. As Writeacher posted, we don't understand your question. What is md? What do you mean by 70year? Please clarify your question, and we'll be glad to help you.

    asked by Ayodele on June 29, 2007
  84. women's studies

    Hello, I need help with this question how has perception of certain work as feminine affected women't work both inside and outside the home? what excatly in this question is the professor looking for. thanks

    asked by chris on November 5, 2007
  85. Pre Algebra

    My math question showed me a scientific notation on the calculator which represents (6E-7). My answer to this question is (-6,000,000) am I correct.

    asked by Americal on March 30, 2015
  86. math

    each question on a five-question multiple-choice quiz has answer choices labeled a, b, c and d. how many different ways can a student answer the five questions

    asked by nouf on September 9, 2012
  87. chemistry

    Could someone answer this question so I understand it. Id appreciate it. Click the link for the question. img_photobucket_com/albums/v712/DeadMan986/Q10_jpg _ in the link = .

    asked by Jules on April 10, 2011
  88. Psychology Statistics

    Not sure how to rewrite this question: ht tp://img221. imageshack.us/ img221/601/question2. jpg Get rid of all the spaces to see image of question.

    asked by Arianna on March 26, 2012
  89. Science/ Social Studies

    I need help with those two subjects. Please tell us specifically what you need help with, and we'll try to help. If you have a question, please post it along with what you think the answer may be. I need alot of help in those subjects because I got an N in

    asked by Terrian on October 31, 2006
  90. physics

    When a cannon with a longer barrel is fired, the force of expanding gases acts on the cannonball for a longer distance. What effect does this have on the velocity of the emerging cannonball? (Do you see why long-range cannons have such long barrels?)

    asked by Chris on April 27, 2013
  91. math

    A cow is attached to a rope 10 feet long in a pasture bordered by two fence( more than 10 feet long) meeting at an angle of 60 degree. What is the area of the space in which the cow is grazing? a. 20 pi b. 5 pi /3 c. 20 pi /3 d. 50 pi /3 e. 100 pi please

    asked by thomas on May 9, 2014
  92. physics

    A ball is thrown vertically upward with a speed of 23.7 m/s from a height of 2.0 m. How long does it take to reach its high- est point? The acceleration of gravity is 9.81 m/s2 2) How long does the ball take to hit the ground after it reaches its highest

    asked by stan on November 13, 2010
  93. Principal of Math

    a tree casts a shadow 29m long. at the same time the shadow cast b a 61cm tall statue is 82cm long. find the height of the tree. round results to the nearest unit.

    asked by Christine on April 14, 2013
  94. Math

    Eleanor and Max used two rectangular wooden boards to make a set for the school play. 1 board was 6 ft long, the other was 5 1/2 ft long. The 2 boards had equal widths. The total area of the set was 60 3/8 square ft. What was the width?

    asked by Henry on October 7, 2014
  95. Physics

    When a cannon with a longer barrel is fired, the force of expanding gases acts on the cannonball for a longer distance. What effect does this have on the velocity of the emerging cannonball? (Do you see why long-range cannons have such long barrels?)

    asked by Miss Angie on September 23, 2013
  96. Introduction to Physical Science

    When a cannon with a longer barrel is fired, the force of expanding gases acts on the cannonball for a longer distance. What effect does this have on the velocity of the emerging cannonball? (Do you see why long-range cannons have such long barrels?)

    asked by Jason on August 4, 2013
  97. calculus

    at a given instant the legs of a right triangle are 5cm and 12 cm long. if the short leg is increasing at the rate of 1cm/sec and the long leg is decreasing at the rate of 2cm/sce, how fast is the area changing

    asked by mark on December 5, 2008
  98. Math

    5) A freight train leaves a station traveling at 32 km/h. Two hours later, a passenger train leaves the same station traveling in the same direction at 52 km/h. How long does it takes the passenger train to catch up to the freight train? Its a basic

    asked by Pat Stout on September 11, 2008
  99. ap biology

    we are looking at the Hardy weinberg equilibrium theory and we were given fifty problems to work over the break and even though i have answered most of them there is one that has be taken a long time because I am not sure if it can be solved. here is the

    asked by claudia on January 4, 2008
  100. precalc

    a 21-speed bike has varying top speeds dependent on the gear it's in. the bike's tire diameter is 26 inches. the bike can pedal at a maximum of 130 revolutions per minute. the front chain wheel has sprokets of 24, 32, and 40 teeth. the rear cassette

    asked by syd on January 21, 2009