Diagnostic ultrasound of frequency 3.82 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 1650 m/s, what is the wavelength of this wave in tissue? (take the speed of sound in air to be 343 m/s.)

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2

Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.