A voice signal (which extends from 300Hz to 3333Hz in the frequency domain) is digitized by 32 levels PCM. The sampling rate is set to be

120% over the Nyquist rate. Find: (1) the maximum SNqR, (2) the

output data bit rate, (3) the required bandwidth of the channel.​

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

Apreheater involves the use of condensing steam at 100°c on the inside of a bank of tubes to heat air that enters at 1 atm and 25°c. the air moves at 5 m/s in cross flow over the tubes. each tube is 1 m long and has an outside diameter of 10 mm. what is the minimum value of nl needed to achieve an outlet temperature of t 75 c? what is the corresponding pressure drop across the tube bank?