I need help with this question part (a)

Your answer is partially correct. The Mariana trench is located in the Pacific Ocean at a depth of about 11 000 m below the surface of the water. The density of seawater is 1025 kg/m . (a) If an underwater vehicle were to explore such a depth, what force would the water exert on the vehicle's observation window (radius = 0.0522 m)? (b) For comparison, determine the weight of a jetliner whose mass is 8.59 x 105 kg. (a) Number i Units N (b) Number 8420000 Units N