ssmithssmithk23221 ssmithssmithk23221
  • 24-01-2024
  • Chemistry
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As a student lifts a 4.5 kg book bag 120 cm into the air, the amount of work that the force of gravity does on the bag is:
a) 540 J
b) 432 J
c) 0 J
d) 120 J

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