Question: Design a battery pack composed of D-cells (6.35 cm long 3.18 cm diameter each weighing 0.100 kg). The final package (see diagram) must supply

Design a battery pack composed of D-cells (6.35 cm long × 3.18 cm diameter each weighing 0.100 kg). The final package (see diagram) must supply 42.0 V (the coming standard for all cars) at 30.0 A for 2.00 hours. Each cell produces 3.0 V and has a power producing density of 125 W/kg. Estimate W and L for the package (ignore its energy storage density for now).

The following figure applies to the above exercise.

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