oceanographers use submerged sonar systems, towed by a cable from a ship, to map the ocean floor. in addition to their downward weight, there are buoyant forces and forces from the flowing water that allow them to travel in a horizontal path. one such submersible has a cross-section area of 1.3m2, a drag coefficient of 1.2, and, when towed at 6.1 m/s, the tow cable makes an angle of 30 degrees with the horizontal. what is the tension in the cable? take the water density to be 1000 kg/m3 ?