For the area of prob. 5.8, determine the ratio r2 / r1 so y - = 3r1 / 4.

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

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

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false