An implanted pacemaker supplies the heart with 72 pulses, Ask an Expert

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An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 6.0 V for 0.65 ms. The resistance of the heart muscle between the pacemaker's electrodes is 550 ohms.

a. Find the current that flows during a pulse.

b. Find the energy delivered in one pulse.

c. The average power supplied by the pacemaker.

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