A velocity is given by V = axyi + by2j, where a = 2 and b = - 6, find
a) What are the dimensions of aand b?
(b) Develop an equation for the streamline that passes through (x, y)=(2,0.5)and plot this streamline on an xy coordinate system. The coordinates are in meters.
(c) Determine the x and y-components of the acceleration.

Fluids at rest possess no flow energy. a)- true b)- false

Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86

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