Hey what is magnetic field

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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 ω. find (a) the current that flows during a pulse, (b) the energy delivered in one pulse, and (c) the average power supplied by the pacemaker.

Why do electron microscopes have higher resolving power than light microscopes?

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.