Julie is holding a 5 kg book 1 m above the ground, bob is holding a 10 kg book 2 m above the ground and anna is holding a 7.5 kg book 1 m above the ground. all three students hold their book steady without moving for 5 minutes. rank from greatest to least the amount of work being done by each person during this 5 minute period. (use > to indicate one value is greater than another, use = to indicate they are the same.)

All the three persons do no work while holding the books steady at their respective positions.

Explanation:

The work done by a force is given by

Since there is no dispalcement of the books we have work done equals

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.

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true

explanation: