If rechargeable 18650 batteries, each of 3.6 V 2.2 Ah and weighing 50 g, are to be used to power a motor with rated voltage of 5 V, power of 10 W, and 1 Ω internal resistance. A DC-DC voltage converter is used to convert the voltage with 95% efficiency. The converter could take input voltages between 3 V and 10 V.
1.If the motor is used to drive the wheels of a mobile platform, a total number of n 18650-type batteries are mounted on the mobile platform to power the motor, determine the total available energy Wt stored in the batteries (in Wh).
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