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← 06-54 Solving The Problem

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Showing Revision 1 created 07/19/2012 by Amara Bot.

  1. We want to keep the Netherlands dry, which means that when water comes
  2. into the area that's supposed to be land, we need to get it out.
  3. Now, there's a lot of factors that affect how quickly water can enter here.
  4. What I want to know is, if I can know how quickly water is entering this area over here,
  5. how many windmills will I need to pump it back out?
  6. And that is a matter of figuring out exactly how much one windmill can do?
  7. Each of these windmills has access to about 1000 W of wind power.
  8. Of that 1000 W, a lot of it is lost to friction.
  9. In fact, 400 W is lost as this rotates as the water sloshes along in here,
  10. There's many sources of friction here. We said the average dike is about 6 m high.
  11. I want to know how much water can each of these windmills move
  12. from down here all the say up to here in 1 day?
  13. This is a tricky problem but try your best and enter your answer here in kilograms.
  14. Remember, you can always go to the forums if you need help.