Answered: A Doppler blood flow uni 5.8 MHz. | bartleby

Related questions

Question

A Doppler blood flow unit emits ultrasound at
5.8 MHz.
Part A
What is the frequency shift of the ultrasound reflected from blood moving in an artery at a speed of
0.25 m/s ?
Express your answer with the appropriate units.
19
Af= 5.80
Submit
μA
MHz
Previous Answers Request Answer
?
X Incorrect; Try Again; 5 attempts remaining

Expert Solution

Step by step

Solved in 3 steps with 6 images

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

A loudspeaker, mounted on a tall pole, is engineered to emit 75% of its sound energy into the forward hemisphere, 25% toward the back. You measure an 85dB sound intensity level when standing 3.5m in front of and 2.5m below the speaker. What is the speaker's power output?
Based on a grade 11 physics student, answer the following question: Mr.T wants to know if he should wear a toque to bring the garbage outside on garbage day, but he doesn’t know how cold it is since his wifi went down, rats! He decides to bust out his soprano opera voice and belt out a sound at 1499Hz (to which the neighbourhood dogs angrily respond.)If Mr.T records ¼ ? (the wavelength) of his voice on his handy-dandy wrist-operated oscilloscope as 5.42 x 10-2 m, then what is the temperature outside; should he wear a toque? How much time does it take Mr.T to hear his echo if he remembers that the neighbour’s house is exactly 40.6m away from his front door (from his last experiment involving model rockets and a new/faster way to cut his grass. Don’t ask.)
Suppose a bat uses sound echoes to locate its insect prey, 3.00 m away. (a) Calculate the echo times for temperatures of 5.00ºC and 35.0ºC .(b) What percent uncertainty does this cause for the bat in locating the insect? (c) Discuss the significance of this uncertainty and whether it could cause difficulties for the bat.(In practice, the bat continues to use sound as it closes in, eliminating most of any difficulties imposed by this and other effects, such as motion of the prey.)
The Doppler effect can be used to measure flow rates in blood. A sound wave is transmitted into a vein or an artery, where it is reflected off the moving red blood cells and then detected by a receiver. A transmitter uses a frequency of 10.0 MHz, and the blood flow rate is 0.50 m/s. What is the expected frequency shift?
(a) Find the intensity in watts per meter squared of a 100 Hz sound having a loudness of 50 phons. (b) Find the intensity in watts per meter squared of a 10,000 Hz sound having a loudness of 60 phons.
an airfilled, acoustic interferometer, used to demonstrate the interference of sound waves. Sound source S is an oscillating diaphragm; D is a sound detector, such as the ear or a microphone. Path SBD can be varied in length, but path SAD is fixed. At D, the sound wave coming along path SBD interferes with that coming along path SAD. In one demonstration, the sound intensity at D has a minimum value of 100 units at one position of the movable arm and continuously climbs to a maximum value of 900 units when that arm is shifted by 1.65 cm. Find (a) the frequency of the sound emitted by the source and (b) the ratio of the amplitude at D of the SAD wave to that of the SBD wave. (c) How can it happen that these waves have different amplitudes, considering that they originate at the same source?
(a) A sonar echo returns to a submarine 3.20 s after being emitted. What is the distance to the object creating the echo? (Assume that the submarine is in the ocean, not in fresh water.) in m(b) (Question be is asked as an image, Please look at the image)(c) What is the intensity in watts per meter squared of 89.2 dB sound? in w/m^2
A human cannot hear sound at a frequency of 100 kHz or sound at 102 kHz. But if you walk into a room in which tow sources are emitting sound waves, one at 100 kHz and the other at 102 kHz, you’ll hear sound. Explain.
During ultrasound examination of a patient with spherocytosis, it was noted that 1 MHz signal after reflection from erythrocyte is determined by the detector as having a frequency 400 Hz higher. Find the rate of movement of erythrocyte. The speed of sound in blood is 1500 m/s.
wave, travelinp vith a speed f wavelength of f this of 3.50%, has 20 cm. Calaulate a the frequency しaue.
Microwave ovens typically cook food using microwaves with frequency 2.45 GHz. What is the corresponding wavelengh of these microwaves in cm?(ans: 12.2cm) An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that travel 1530 m/s in seawater. If the time delay of the echo is 6 seconds, what is the depth of the water? (ans: 4590 m) Show work
Two identical speakers are initially equal distancesfrom a listener . Thelistener hears a sound maximum (constructiveinterference). When the upper speaker is moved backby a distance d = 2 m, the listener hears a soundminimum (destructive interference). What is thelongest wavelength the soundwaves could have?

SEE MORE QUESTIONS