an ultrasound pulse used in medical imaging has a frequency of 5 mhz and a pulse width of 0.5 us. ap- proximately how many oscillations of the sound wave occur in the pulse? the number of oscillations is sometimes called the quality, q, of the pulse. a pulse with little damping has q 1, whereas a heavily damped pulse has e 1. is the ultrasound pulse heavily damped?

Consider motion in one dimension. (the sign of the vector quantities is their direction indicator.) an object moves in the positive x-direction with speed 2.9 m/s for 4.5 s. it stops for 3.8 s and then moves in the negative x direction with speed 2.8 m/s for 4 s. what is the total distance traveled by the object in units of meter? enter a number with two digits behind the decimal point.