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Converting speeds and time?

  1. Sep 15, 2010 #1
    1. The problem statement, all variables and given/known data

    15. Convert the following times. All units must be shown as well as cancellations.

    f) 0.35 minutes to years.

    19. a) The maximum speed reached by a standing skate boarder is about 14.7 m/s. Would the skate boarder get a ticket in a 30 km/h speed zone?

    b) A snail crawls 100 times slower than a normal human walk (3km/h). How many times slower than the skate boarder is the snail?

    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Sep 15, 2010 #2
    You did not really state where your stuck...which it makes it a bit hard to help you.

    But here is a try for the first q

    "Convert the following times. All units must be shown as well as cancellations.

    f) 0.35 minutes to years"


    This is a dimensional analysis type q. Used commonly in chemistry and higher classes physics.

    for example, 50 mL to L

    50mL x 1L/1000mL

    as you can see we converted over a unit we want and cancelled the units we do not want. Your question follows a similar path...just keep converting until you get to years ex. mins to hours to days to months to finally years.


    The other questions follow a similar method.
     
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