A) \[{{W}_{1}}+{{W}_{2}}=W\]
B) \[{{W}_{1}}+{{W}_{2}}=\text{constant}\]
C) \[\frac{{{W}_{1}}}{{{A}_{1}}{{E}_{1}}}=\frac{{{W}_{2}}}{{{A}_{2}}{{E}_{2}}}\]
D) \[\frac{{{W}_{2}}}{{{A}_{2}}{{E}_{1}}}=\frac{{{W}_{2}}}{{{A}_{1}}{{E}_{2}}}\]
Correct Answer: C
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