Recent content by jjlittel

Thank you for the help, gnome. You were right about the second shift, and I finally got the answer, which was 974.2 Hz.

I have been trying this problem for a couple of days: Ultrasound reflected from an oncoming bloodstream that is moving at 30 cm/s is mixed with the original frequency of 2.5 MHz to produce beats. What is the beat frequency? (Velocity of sound in blood = 1540 m/s.) I tried this as a...