The duty factor for continuous wave ultrasound is:

For soft tissue, the approximate attenuation coefficient in dB/cm is equal to one-half _____ in _____.

The speed of US in soft tissue is closest to:

The frequency closest to the lower limit of US is:

As the impedances of two media become vastly different the:

Propagation speed =_____ x wavelength:

What is the frequency of a wave with 1 msec period?

Power of the sound has units of:

The extrinsic eye muscle highlighted in purple is the:

Strategic nuclear weapons generally considered to have a yield or explosive power of at least __________, which is equivalent to _______ tons of TNT.