Why did the Union need a win at Vicksburg

To subdue the Confederate batteries that failed

Explanation:

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disequilibrium means that either supply is greater than the demand for an available good, or that the demand for a product outstrips the available supply. it implies that the price for a is either too low creating large demand, or too high creating a large surplus of supply.

answer; i believe that the correct answer is (chronological order);