Consider the weighted interval scheduling problem, we have the following iterative solution (see 1.2.6 (and earlier sections if needed) of L6) to the problem: Assume we have n requests (1. n). For each request i, v) is the value of I. Recall we have defined function previous in class. Line 1: for i from 0 ton, M[:= 0. Line 2: for i from 1 ton, MD := max(vl) + M [previous()), M[i-1]) a) Write down precisely what is the intended meaning of the data structure MI...]
b) Why do we do line 1?
c) Explain the meaning of MCU := max(v()+ M[previous()), M[i-1]) in Line 2.

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

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?

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false