Diagnostic ultrasound of frequency 4.47 MHz is used to examine tumors in soft tissue. (a) What is the wavelength in air of such a sound wave? (b) If the speed of sound in tissue is 1770 m/s, what is the wavelength of this wave in tissue? (Take the speed of sound in air to be 343 m/s.)

the five characteristics of adolescence are biological growth and development, and undefined status, increased decision making, increased pressure and the search of self.

your answer is c! hope this : )

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.