Questions Asked on
September 19, 2006

  1. Math

    If 5 fishermen catch 5 fish in 5 minutes, how many minutes will it take 50 fishermen to catch 50 fish? If 5 fishermen catch 5 fish in 5 minutes, then the average time it takes each fisherman is 5 minutes to catch one fish. It will take 50 fishermen 5

  2. Science

    Starting from rest, a boulder rolls down a hill with constant acceleration and travels 3.00 during the first second. How far does it travel during the second second? How fast is it moving at the end of the first second? How fast is it moving at the end of

  3. Chemistry

    I got this question wrong, and I'm not sure where my mistakes lie. Can someone show me what I'm not doing right and what the correct answers should be? "Some states have reduced the legal limit for alcohol sobriety from 0.10% to 0.080% alcohol by volume in

  4. Biology (AP)

    part of the Essay question off of 2003 exam: Describe how the properties of water contribute to the plasma membrane structure I would love any help I can get. thnx! if the membrane lets the water through then it is called osmosis

  5. math

    What is the definition for an EXPRESSION ? An expression in English can be a short sentence, or a sentence fragment. Take a hike. Go figure. What's up? Whatever. In math, an expression is again a fragment, it can be complete or not complete. 2x + 1

  6. algerbra

    who invented algerbra and why is it important I searched on the internet and found notations as far back as 1850 BC (that's a long time ago) by a plethora of nations (Egypt, India, and others). Your next question is easier to answer. MOST of the work

  7. physics

    A hot air ballon is ascending at 12m/s and at 80 m above the ground, a package is dropped over the sdie. How long does it take the package to hit the ground? I can't figure out which equation to ues. but I know that v=12m/s, d=80m and t=? Since the object

  8. math

    Find the amount that schould be invested now to accumulate following amounts,if te money is compounded as indicated. $2000 at 9% compund semiannually for 8 years. i don't know how u do this you take 2000(1+.09/12)^96 and you'll get the answer No, I don't

  9. Science Question

    How might the most common occurring stars be described, based on our stellar neighborhood? A. White Dwarfs B. K giants C. A main sequence D. M main sequence The most common stars are Red Dwarfs. I don't like the answer choices. Most of them are M type

  10. social studies

    i need to know what is on the blank of peninsula? I don't understand your question. Please clarify. A peninsula is land that is surrounded on three sides by water. Most of Florida is a peninsula.

  11. socil studies

    i need to know what is on the peninsula Which peninsula? Please explain. I don't know About THE Growing of Consumer Market i don't really l;ike ur sight and i love the channel animail planet and i also love all my doggies and they love me

  12. Physics

    A baseball thrown at an angle of 55.0 degrees above the horizontal strikes a building 16.0 m away at a point 8.00 m above the point from which it is thrown. Ignore air resistance. Find the magnitude of the initial velocity of the baseball (the velocity

  13. Physics

    A rock is thrown vertically upward with a speed of 12.0 from the roof of a building that is 40.0 above the ground. Assume free fall. In how many seconds after being thrown does the rock strike the ground? What is the speed of the rock just before it

  14. Science

    A particle has a velocity of 18m/s at a certain time and 2.4s later is velocity is 30m/s in the opposite direction. What are the magnitude and direction of the particle's acceleration during the 2.4s interval? I udes a=change in velocity /change in time

  15. Arcetype journey - lion king

    What in the world is archetype journey? please someone explain, thanks! Thank you for using the Jiskha Homework Help Board. Begin with the word "architype" and here is the definition: the original pattern or model of which all things of the same type are

  16. math

    A stock that sold for 22$ at the beginning of the year was selling for 24$ at the end of the year. If the stock paid a dividend of .50$ per share,what is the simple intrest rate on a investment in this stock? The simplest answer is that it depends on what

  17. social studies

    What was British Columbai's electricity production? British Columbia Hydro and Power Authority (BC Hydro) produces power for that province. It is the third largest electric utility in Canada, serving 1.4 million customers in an area containing over 92

  18. Referencing?

    I get pulled down an entire grade because of my inability to reference in the body of the text. I understand how to complete a reference list entirely correctly, and I understand APA referencing. I just have no idea how to reference in the body of the text

  19. Live Help

    This may not be homework...but how do I go about using the live help for this site? At this point, live help is not available. Computer glitches, you know. So keep posting your questions on the message boards. Especially in the afternoons and evenings,

  20. RE: adjusting entry

    Can someone help me prepare an adjusting entry for the following> Prepaid insurance account had 4,000 balance on December 31, 2007. An analysis of insurance policies shows that 1,200 of unexpired insurance benefits remain at December 31, 2008. Prepaid

  21. Math

    I'm having trouble with a math problem: I solved it but I have to make sure I'm right. Question: A computer was on sale at 60% off. A cash register receipt for that computer was found showing a total of $496.08 which INCLUDED TAX, but the rest of the

  22. algebra

    The perimeter of the state of Wyoming is 1280mi. The width is 90mi less than the lenght. Find the width and the length. I don't know what formula to use or how to write it. Perimeter = length + length + width + width = 1280 miles OR P = 2L + 2W = 1280

  23. Pre-Calculus

    The monthly revenue acheived by selling x boxes of candy is calculated to be x(5-0.05x)dollars. The wholesale cost of each box of candy is $1.50. How many boxes must be sold each month to achieve a profit of at least $60. Can someone please let me know how

  24. science

    Two stones are thrown vertically upward from the ground, one with three times the initial speed of the other. Assume free fall. If the faster stone takes 9.00 to return to the ground, how long will it take the slower stone to return? If the slower stone

  25. Physics

    A plane leaves Seattle, flies 79.0 at 22.0 north of east, and then changes direction to 48.0 south of east. After flying at 123 in this new direction, the pilot must make an emergency landing on a field. The Seattle airport facility dispatches a rescue

  26. homework !!

    My daughter did excellent in school last year (grade 1) She was reading at a grade 2 level, and loved school. Now, she says she can't read, won't read and when she tries she is getting all the small words wrong. Is she playing me or does she have a

  27. Chemistry

    what are the chemical components of milk Here is a link that may help you. Being a "natural" product, there are many many components of milk.

  28. algebra

    The width of a rectangle is three fourths the length. The perimeter of the rectangle becomes 50 cm when the length and the width are each increased by 2cm. Find the length and the width. Draw a diagram and convince yourself that the perimeter P=2(L+W)

  29. pre-algebra

    7x-12=x+2+2x-3x Solve for x Combine the terms on the right hand side first. Then add 12 to both sides and solve for x.

  30. math

    I don't understand ordering numbers in comparing,could you explain it to me. I'm not sure what your question is asking, can you give an example of the prolblem you're doing? Typically, we order numbers by arranging them from least to greatest or the other

  31. Physics

    A Ferris wheel with radius 14.0 m is turning about a horizontal axis through its center, as shown in the figure below. The linear speed of a passenger on the rim is constant and equal to 6.60 m/s. What is the magnitude of the passenger's acceleration as

  32. algebra !

    i need help on adding and subtacting rational numbers like -7over12+5 over 6 When adding rational numbers we need a common denominator. We have -7/12 + 5/6 What is the least common multiple of 12 and 6? After you find that make sure both fractions are

  33. math

    magnitude estimate for 9.3*2.8=_ The exact answer for 9.3*2.8 is 26.04, but we only have 2 significant figures in each of the factors, so 26 is the estimate. about 18

  34. Physics

    A rocker acceleratess up ar 5m/s/s for 10s and at which point the fuel is exhusted, and then the rocket continues upwards in free fall. a)How high does the rocket riseb)What total time does the rocket spend in the air? b) What total time does the rocket

  35. sciecne

    An airplane is being floen at 1500km/h at 100m above level ground. The ground began to rise up at 10 degrees. How much time does the pilot have to madke correction such that the plane doesn't hit the ground? the part where the ground is rised to 10 degrees

  36. physics

    At a construction site, a brick fell and hit the ground at 24m/s a) from what height did the brick fall? b) how long was it falling? for a) i got 29.387m and for b) I got 2.448s I got a) by using v^2=v0^2 +2a(x-x0) for b) I used v=v0+at Did I do this

  37. Physics

    A rock is dropped from a height of 100m. a) how long does it take to fall the first 50m? b)How long does it take to fall the last 50m? Which equation would I use to solve this problems with? For a) use s=(1/)g*t^2 where s=50m and g=9.8m/s^2 and solve for

  38. Physics

    A car acclerates at 4m/s/s for 5s and then drove at its final velocity for 8s. It then decelerates at 2m/s/s for 2s. Draw a velocity-time graph and use the graph to find the distance covered during the 15s described. Would I plot (5,8) and then draw a line

  39. math

    8 divided by 3 plus 6= You asked 8 divided by 3 plus 6= (8/3) + 6 = 2(2/3) + 6 or 8/3 + 18/3 = ??/3 I don't understand how to describe pairs of related variables what's the difference between dependent & independent variables I'm not what class your

  40. english

    I am writing an essay where I am supposed to write sentences that demonstrate "series of three" using parallel structure. What is that? Here are some examples: For breakfast this morning, I ate scrambled eggs, bacon, and toast. Janie, Sam, and Mariah are

  41. math

    how do i do variables in math i don't figure it out your self:) Do you have a specific problem you want help with? The subject should be covered by your text and your teacher's in-class explantions.

  42. math, science

    Ecology, math and geography are _______. you need to find out what they have in common. ecology, mathe and geography are related

  43. math

    find the compound ammount $1000 at 6% compounded annually for 8 years Use A=P*(1+i)^n where P=1000, i=.06 and n=8 P is the Principal, i is the annual interest rate expressed as a decimal,and n in the number of periods in the compounding period. BTW, are

  44. math

    5x+3-45 = 6x+9-30/1 you want to group like terms. subtract the 5x from both sides, so you have 3-45= 6x-5x-30/1 you will then have -42 = x -30 add 30 to both sides and you get -12 = x

  45. math

    5x+3-45 = 6x+9-30/1 what is the value of x -21

  46. Uncle Tom's Cabin

    How did Uncle Tom's Cabin contribute to the start of the Civil War?'s_Cabin =)

  47. Lattice method/math

    How do you do lattice math? what is the lattice method? hi i hate this method it suks now i need to do a report on it and i need information about its history aaaaaaaaaaahhhhhhhhhhhhhhhh dam this! can you

  48. math

    Find the amount that schould be invested now to accumulate following amounts,if te money is compounded as indicated. $2000 at 9% compund semiannually for 8 years. i don't know how u do this sorry, your homework!!!!!!!!!!!!!!!!!! Double post. I answered

  49. geography

    what are large masses of land surrounded by water on 3 sides called ? peninsula = almost an island -- from the two Latin words that mean "almost" (paene) and "island" (insula) =)

  50. Pre-Calc

    Consider a triangle ABC. C is a right angle, and side a is opposite angle A, side b is opposite angle B, and side c is the hypotenuse. The measure of side a= 2, side b= 7, and side c= 7.3 How do you find the angle measure of A and B based on the lengths of

  51. microscope

    list lenses in light path between spcimen viewed with compound light microscope and its image on the retina of the eye gives the lenses and other parts. The image formed is a virtual image

  52. Can someone proffread?

    The Unit 3 Individual Project is guided by opinion, and therefore I had addressed the areas required by assuming that I was a manager at Blue Mountain Company, and ethically handling David Tuff's situation. The Unit 3 Individual Project is guided by

  53. Math

    For homework we're supposed to give all the properties of different functions. I was able to do all of it except for this one greatest integer function - f(x) = -1/2 [x-1] These functions always mess me up! Could someone tell me the following properties of

  54. math

    write each of the following as the ratio of two integers in lowest terms: 2 and 3/4 Any integer n can be written as n/1. If the ratio of two integers is in lowest terms then the greatest common divisor or gcd of them is 1. What is the gcd of 3 and 4?

  55. Math

    What is the definition or theorem if ray nm perpendicular to line gh, then angle nmp and angle pnh are complementary? I'm not entirely sure where you have p situated, but I 'think' I know from the context of the question. That would be one definition of

  56. geography

    what flatlands extend south from cheapsake bay to the east coast of florida? That region is often called the Inner Banks. This distinguishes it from the Outer Banks, which are barrier islands.

  57. math

    find the effectivee rate correspoding to 3% compounded quarterly The formula for effective rate I found is (1+ i/n)^n - 1 where i is the annual rate as a decimal and n is the number of periods. Here i=.03 so the effective rate is and n is 4 since there are

  58. organic chemistry

    I have tried these questions on my own but am wondering if someone wouldn't mind trying these retrosyntheses and list their steps to see if they get the same as me: 1) start with m-cresol which is toluene with an OH in the meta position. end with

  59. Physics

    A dock worker applies a constant horizontal force of 79.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 11.0 m in the first 6.00 s. What is the mass of the block of ice? Work done

  60. Physics

    You have landed on an unknown planet, Newtonia, and want to know what objects will weigh there. You find that when a certain tool is pushed on a frictionless horizontal surface by a 12.2 N force, it moves 16.3 m in the first 2.30 s, starting from rest. You

  61. Physics

    Hi, i need help on the following questions. Thank you. 1) The potential at location A is 441 V. A positively charged particle is released there from rest and arrives at location B with a speed vB. The potential at location C is 805 V, and when released

  62. Math

    Homework grades are 5% of the overall grade. Lab work is 15% of the overall grade. Tests are 60% of the overall grade. The Final is 20% of the overall grade. Could a student that has a 75 homework average, 80 lab average, 40 test average, and 50 on the