Various types of attachments can be used with the shop vac shown in Video V5.2. Two such attachments are shown in Fig. P5.21a nozzle and a brush. The flowrate is (a) Determine the average velocity through the nozzle entrance, (b)Assume the air enters the brush attachment in a radial direction all around the brush with a velocity profile that varies linearly from 0 to along the length of the bristles as shown in the figure. Determine the value of Vb.
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