(a) (2 pts) Given an RF pulse with a bandwidth of 1000 Hz (this is f, not omega) centered at the Larmor frequency for a 2.0 Tesla field, what slice select gradient strength is needed in order to excite a 2-mm slice in a homogeneous water phantom?

Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.

Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.

Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false