The acceleration of a particle is defined by the relation a = –kv^2.5, where k is a constant. The particle starts at x = 0 with a velocity of 16 mm/s, and when x = 14 mm, the velocity is observed to be 8 mm/s. Determine the velocity of the particle when x = 5 mm. in mm/s

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

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

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false