How many liters are in 120mL?

In diagnostic imaging, short pulses of acoustic energy are used to create anatomic images. 

All the following are acceptable units for frequency except _______________,

What change typically occurs to the propagation velocity when the density is increased?

What type of reflection occurs from structures that are smaller than the wavelength?

A sonographer increases the amplitude of a wave by a factor of 5. How has the power changed?

List the four acoustic variables.

1)   Pressure is defined as _______________.

Describe why a longer spatial pulse length results in worse axial resolution.

The ratio of the pulse duration to the PRP is called the Duty Factor.