The manufacturer of a 1.5 V D flashlight battery says that the battery will deliver 9 mA for 40 con-

The manufacturer of a 1.5 V D flashlight battery says that the battery will deliver 9 mA for 40 con- tinuous hours. During that time the voltage will drop from 1.5 V to 1.0 V. Assume the drop in volt- age is linear with time. How much energy does the battery deliver in this 40 h interval

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