You are working with a 3 T MRI scanner with maximum gradient strength of 40 mT/m in all 3 axes (x, y,z). Your acquisition uses maximum gradient strength to minimize the duration of the data acquisition window. When the Gx is the only gradient that is turned on, what is the rotation frequency for spins located at x=5cm, y=5cm? The gyromagnetic ratio is γ=42.576 MHz/T

Is the vertical component of velocity ever zero?

Sally turns on her cellular telephone to speak to her friend who is located thousands of miles away. which of the following best describes how such a telephone is able to transmit and receive information? a. the cellular telephone transmits, receives, and encodes information using only sound waves. b. the cellular telephone transmits, receives, and encodes information using only electromagnetic waves. c. the cellular telephone transmits information by electromagnetic waves to a receiver which then encodes them and produces sound. d. the cellular telephone transmits information by sound waves to a receiver which then encodes them and produces electromagnetic waves.

How do i solve this physics problem?