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Homework Help: Find the height or length of these of these natural wonders in kilometers , meters

  1. May 28, 2010 #1
    Find the height or length of these of these natural wonders in kilometers , meters , and centimeters .


    (a)The longest cave system in the world is the Mammoth Cave system in Central Kentucky. It has a mapped length of 384 miles

    (b)In the United States , the waterfall with the greatest single drop is Ribbon Falls in California which drops 1 612 ft

    (c)Mount McKinley in Alaska is America's highest mountain at 20 320 feet

    (d)The deepest canyon in the United States is King's Canyon in California with a depth of 8 200 ft.
    -------------------------------



    a) we have 384 miles as the lenth of cave

    As we know 1 mi = 1609 m

    then 384 X 1609 m

    = 559.93

    now we change to kilometers , meters , and centimeters .



    559.93 X 1000 m

    = 559930

    559930 X 100 cm

    =55993000 cm

    ------

    (b)



    1 ft = 0.3048 m

    1 612 ft = 1 612 X 0.3048

    =491.3376

    491.3376 x 1000 m

    4913376

    4913376 X 100 cm

    4913376





    (c) and ( d) i try later
     
  2. jcsd
  3. May 28, 2010 #2

    Mark44

    Staff: Mentor

    Re: Find the height or length of these of these natural wonders in kilometers , meter

    559.93 is not what you get when you multiply 384 by 1609.
    You are omitting units.
    1 612 ft = 1 612 ft X 0.3048 m/ft = 491.3376 m. (The ft units cancel.)

    What are you trying to do here? The length 491.3376 is already in meters. To convert to km, multiply by 1km/1000m. Don't forget the units!
     
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