1.A thin wire ring, 3 cm in diameter, is lifted from a water surfaceat 20 C (DEGREE CENTIGRADE). Neglecting the wire weight, what isthe force required to lift the ring? is this a good way to measuresurface tension? should the wire be made of any particularmaterial?
2.Determine the volume of an object that weighs 200 N in water and300 N in oil (s = 0.88). What is the specific weight of theobject?
3.Velocity component increase linearly with time
V = Kxt i - Kyt j + 0k
find and sketch , for a few representative times, the instantaneousstreamlines.