In this lab you will write a backtracking algorithm to solve a simple puzzle that is similar to sudoku. in "simpledoku" you have to fill an empty square grid of n x n cells, with each cell getting one of the digits 1 through n. a number may not be repeated in any row, in any column, in the long top-left-to-bottom-right diagonal, or in the long top-right-to-bottom-left diagonal. try it on paper first. you’ll find that the 4x4 puzzle is very easy, but things get harder as the grid gets bigger. many students report the 6x6 is harder than they expected, but 7x7 is easier than 6x6.

Burgers vector is generally parallel to the dislocation line. a)-true b)-false

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

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.