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Battery Design

A satellite requires a battery with an open-circuit voltage v_OC = 36 V and a Thévenin resistance R_T = 10 Ω. The battery is to be constructed using series and parallel combinations of one of two types of cells. The first type has v_OC = 9 V, R_T = 4 Ω, and a weight of 30 g. The second type has v_OC = 4 V, R_T = 2 Ω, and a weight of 18 g. Design a minimum weight battery that meets the open-circuit voltage and Thévenin resistance requirements.

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