. Obstetricians use ultrasound to monitor fetal heartbeat. If 5.0- MHz ultrasound
Chapter 14, Problem 78(choose chapter or problem)
. Obstetricians use ultrasound to monitor fetal heartbeat. If 5.0- MHz ultrasound reflects off the moving heart wall with a 100-Hz frequency shift, whats the speed of the heart wall? (Hint: You have two shifts to consider.)
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