An undersea research chamber is spherical with an external diameter of 5.50m . the mass of the chamber, when occupied, is 88300kg . it is anchored to the sea bottom by a cable. the density of seawater is 1025 kg/m3.a. what is the buoyant force on the chamber? express your answer to three significant figures and include the appropriate units. b. what is the tension in the cable? express your answer to two significant figures and include the appropriate units.