Homework Help: science

Posted by Glenn on Saturday, October 24, 2009 at 8:16pm.

mr mcmurry taked 4327 sips of mountain dew each day. each time he takes a drink he moves the bottle 45cm to his mouth and another 45cm to his mouth and another 45cm back to the table .If the bottle has a massof 567 grams (5.1newtons)how much work does Mr Mcmurry do during the day?

science - Glenn, Saturday, October 24, 2009 at 8:18pm
how much work is done by a crane that lowers 1,000 newtons of material a distance of 150 medters?
- science - sherrie, Saturday, October 24, 2009 at 8:22pm
  a student who weighs 500 newtons climbed the stairs from first floor third to the third floor,15 meters above in 20 seconds
  
  how much work did she do?
  
  what was her power?

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