Is is a multi-part question. once an answer is submitted, you will be unable to return to this part. refrigerant-134a enters a 28-cm-diameter pipe steadily at 200 kpa and 20°c with a velocity of 4.8 m/s. the refrigerant gains heat as it flows and leaves the pipe at 180 kpa and 40°c. the specific volumes of r-134a at the inlet and exit are 0.1142 m3/kg and 0.1374 m3/kg.

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length

Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan

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.