We are given as input a set of n jobs, where job j has a processing time pj, a deadline dj. Given a schedule (i. e., an ordering of the jobs), consider that each job j has the completion time C; we define the lateness l of job j as the amount of time C - d, after its deadline that the job completes, or as 0 if C; < dj. Our goal is to minimize the maximum lateness, maxlj. Consider the following greedy rules for producing an ordering that minimizes the maximum lateness. For each rule, please explain why it gives the optimal ordering or give a counterexample. You can assume that all processing times and dead- lines are distinct. (a) Schedule the requests in increasing order of processing time Pj. (b) Schedule the requests in increasing order of the product d; * Pj. (c) Schedule the requests in increasing order of deadline di.

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero

A3-mm-thick panel of aluminum alloy (k 177 w/m-k, c 875 j/kg-k and ? = 2770 kg/m) is finished on both sides with an epoxy coating that must be cured at or above t,-150°c for at least 5 min. the production line for the curing operation involves two steps: (1) heating in a large oven with air at ts,0-175°c and a convection coefficient of h, 40 w/m2. k, and (2) cooling in a large chamber with air at 25°c and a con- vection coefficient of he 10 w/m2.k. the heating portion of the process is conducted over a time interval te which exceeds the ime required to reach 150°c by 5 min (h = r + 300 s). the coating has an emissivity of ? = 0.8, and the temperatures of the oven and chamber walls are 175 and 25°c, respectively. if the panel is placed in the oven at an initial temperature of 25°c and removed from the chamber at a safe-to-touch tempera ture of 37°c, what is the total elapsed time for the two-step curing operation?