A bathysphere ysed for deep sea exploration has a radius of 1.50 m and a mass of 1.20 x 10^4 kg. In order to dive, the sphere takes on the mass in the form of seawater. Determine the mass the bathysphere must take on so that it can descend at a cinstant speed of 1.20 m/s when the resistive force o it is 1100 N upward. The density of the sea water is 1.03 x 10^3 kg/m^3.