Read the excerpt from The Diary of Anne Frank. DUSSEL

Mrs. Frank divides things better.

(Together)

MRS. VAN DAAN

(Going to DUSSEL). What are you trying to say?

MR. VAN DAAN

Oh, come on! Stop wasting time!

MRS. VAN DAAN

(To DUSSEL) Don't I always give everybody exactly the same? Don't I?

MR. VAN DAAN

Forget it, Kerli.

MRS. VAN DAAN

No. I want an answer! Don't I?

What is a minor conflict in this excerpt?

Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor

When subject to a steady load (within elastic range) over a long period of time, what is the major difference in material behavoir between steel and plastic?