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10.16 Energy

Set the principle of energy and work to 1, 2, 3, or 4 blocks or mobiles.

Equations:	1
Data:
Object 1:	Name of the first block or mobile.
Object 2:	Name of the second block or mobile.
Object 3:	Name of the third block or mobile.
Object 4:	Name of four block or mobile.
W:	External work to the system.