A baby elephant lays on a cantilever beam causing its weight to act like a uniformly distributed load of 52 lb/ft. Determine the reaction moment at the right end of the beam. Let a = 2.1 ft and b = 4.2 ft.

Three toy blocks are stacked to form a channel shape. Each block has dimensions a = 11 mm and b = 33 mm. Determine the vertical distance from the table to the centroid of the shape.

With normal incidence, what factors affect refraction of US?

What is the minimum value of the duty factor?

The time from the beginning of a pulse until its end is _____?

A pulse is emitted by a transducer and is traveling in soft tissue. The go-return time, or time-of-flight, of a sound pulse is 130 microseconds. What is the reflector depth

If the frequency of US is increased from 0.77 MHz to 1.54 MHz, what happens to the wavelength?

Impedance is the _____ of _____and_____.

The intensity transmission coefficient at the interface between two structures equals 50/100. what is the intensity reflection coefficient?

The duty factor for continuous wave ultrasound is: