nathanpless18
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During an ultrasound, sound waves are sent by a transducer through muscle tissue at a speed of 1300 m/s. Some of the sound waves are reflected from a metal fragment in the muscle and are detected by the transducer 1.5 x 10−4 seconds after they were first emitted. What is the depth of the metal fragment in the muscle tissue?

0.20 m
0.87 m
1.2 m
2.8 m

Respuesta :

Answer: 0.20

Explanation:

V=d/t

d=vt

d=(1300m/s)(1.5×10^-4)=0.20m

The depth of the metal fragment in the muscle tissue is 0.20 m.

  • A sound wave is the pattern of disturbance caused by the movement of energy traveling through a medium (such as air, water, or any other liquid or solid matter) as it propagates away from the source of the sound.
  • Sound waves are created by object vibrations and produce pressure waves, for example, a ringing cellphone. The pressure wave disturbs the particles in the surrounding medium, and those particles disturb others next to them, and so on.
  • The pattern of the disturbance creates outward movement in a wave pattern, like seawater in the ocean. The wave carries the sound energy through the medium, usually in all directions, and is less intense as it moves farther from the source.
  • The idea that sound moves in waves go back to, at least, the first century B.C. The Roman architect and engineer Vitruvius and the Roman philosopher Boethius each theorized that sound may move in waves. The origin of the modern study of sound is attributed to Galileo Galilei (1564-1642).

Learn more about  sound wave

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