Were is conflicting testimony in a court
case. a police officer claims that his
radar monitor indicated that a car
was traveling at 1766 kmin (llomi/h).
the driver argues that the rodar must have
recorded the relative velocity because
he was only going 88km/h (55mi/h).
is it possible that both are telling
the truth? could ondbelying? prepore
scripts for expert witnesses, for both
the prosecution and the datensc, that
use physics to justify their positions
before the jury. create visual aids to
be used as tvidence to support the
different arguments.

Asteel tube (k=50 w/mk) of inner and outer diameter di = 20mm and do=26mm, respectively, is used to transfer heat from hot gases flowing over the tube (h-hot = 200w/m2k) to cold water flowing through the tube (h-cold = 8000 w/m2k). what is the cold-side overall heat transfer coefficient uc? to enhance heat transfer 16 straight fins of rectangular profile are installed longitudinally along the outer surface of the tube. the fins are equally spaced around the circumference of the tube, each having a thickness of 2mm and a length of 15mm. what is the corresponding overall heat transfer coefficient uc? *solve for uc in both cases*