Determine the final values of each of the signals whose Laplace transforms are given next. If there is no final value, state why not. Do not attempt to compute the in- verse Laplace transforms. If there is no final value, state why not. Recall that for the final value to exist, all the poles of sX(s), must lie in the open left half s - plane. a. X(s) = 4/s^2 + s
b. X(s) = 3s + 4/s^2 + s
c. X(s) = 4/s^2 - s
d. X(s) = 3s^2 + 4s + 1/s^3 + 2s^2 + s + 2

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

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

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