Design a counter with two jk flip-flops (a and b) and an input (x) that counts 0 1 2 3 0 … when x = 0 and counts 0 1 2 0 … when x = 1. design this assuming that x is never 1 when the count is 3. show the minimum equations for each.

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

Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false