__________ of a two-particle system depends only on the separation between the two particles. The most appropriate choice for the blank space in the above sentence is:
1. kinetic energy
2. total mechanical energy
3. potential energy
4. total energy

Subtopic:  Gravitational Potential Energy |
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Level 2: 60%+
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You lift a suitcase from the floor and keep it on a table. The work done by you on the suitcase does not depend on:

a. the path is taken by the suitcase
b. the time is taken by you in doing so
c. the weight of the suitcase
d. your weight

Choose the correct option:

1. (a), (b) and (d)
2. (b), (c) and (d)
3. (a), (c) and (d)
4. all of these

Subtopic:  Gravitational Potential Energy |
 71%
Level 2: 60%+
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