Question

At a depth of 1000m in an ocean what is the gauge pressure?
(density of seawater = 1.03 × 103 kg/m3, g = 10 m/s2)
(1)1.03 × 10^5 Pa
(2)2.06 × 10^5 Pa
(3)1.03 × 10^7 Pa
(4)2.06 × 10^7 Pa

Answer 1

Explanation:

Given: h=1000m,d=1.03×10

3

kg/m

3

,g=10m/s

2

The absolute pressure is given by: absolute pressure = pressure of water + atmospheric pressure

P=hdg+1atm=1000×1.03×10

3

×10+1atm=1.03×10

7

Pa+1atm

P=103atm+1atm=104atm