If the velocity of blood flow in the aorta is normally about 0.32 m/s, what beat frequency would you expect if 4.30-MHz ultrasound waves were directed along the flow and reflected from the red blood cells? Assume that the waves travel with a speed of 1.54 x 10^3 m/s.
Answers: 3
) is moving away from the observer (blood cells) and this case the Doppler's effect is mathematically given as 
Other questions on the subject: Physics
Physics, 22.06.2019 15:30, 2605098
Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?
Answers: 2
You know the right answer?
If the velocity of blood flow in the aorta is normally about 0.32 m/s, what beat frequency would you...
Questions in other subjects:
Mathematics, 17.01.2022 04:00
Mathematics, 17.01.2022 04:10
History, 17.01.2022 04:10
