In the Mariana Trench in the Pacific Ocean with a depth of 1 × 10 m to the fourth power, scientists have found fish swimming. What is the pressure on these fish? P seawater = 1.03 × 10 to the third power, kg / m to the third power 10 kg per kilogram

In the Mariana Trench in the Pacific Ocean with a depth of 1 × 10 m to the fourth power, scientists have found fish swimming. What is the pressure on these fish? P seawater = 1.03 × 10 to the third power, kg / m to the third power 10 kg per kilogram

P=ρgh
　　=1.03×10³×10×1×10^4
= 1.03 × 10 ^ 8 pa
A: the seawater pressure on these fish is 1.03 × 10 ^ 8 PA

Physics: the maximum depth of submergence for a diver wearing a 5th power PA that can withstand a pressure of 4.9 × 10
A. 5 meters
B. 50m
C. 500 meters
D. 5000 meters
In addition, please tell me the detailed calculation process

The water depth of 10 meters is equal to the fifth power PA of 1.01 × 10 of a standard atmospheric pressure
4.9÷1.01≈50

The known pressure is 2.94 * 105 power PA, and the depth is calculated,

H = P / (density × g) = 2.94 × 105 power / (10 & # 179; × 10) M = 29.4m