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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 -

    how much work is done by a crane that lowers 1,000 newtons of material a distance of 150 medters?

  • science -

    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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