Question

4. During normal beating, the heart creates a maximum 4.9-mV potential across 0.22 m of a person’s chest, creating a 1.00-Hz electromagnetic wave. What is the corresponding maximum magnetic field strength in the electromagnetic wave?

Answer to 2 decimal point precision the number of Tesla (T) in exponential format. No units required.

5. Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of 4.2 mW. (a) If such a laser beam is projected onto a circular spot 5 mm in diameter, what is its intensity?

Answer with the whole number of Watts per meter squared (W/m²). No units required.

Answer 1