By Siyun Zou

Next semester I will be going on the Spring Study Abroad trip
to Australia and I plan on doing some scuba diving there. I want to figure out what my force and pressure
would be when I am completely submerged underwater. In addition I would like to
find what is the force exerted on the diver’s glass plate face mask.

**Finding Pressure:**

P=Po+ρgh

Initial Pressure of water= 1.013E5 Pa

Average height for beginners = 40ft = 12.19m

P= 1.013E5 + (1000kg/m

^{3})*(9.8m/s^{2})*(12.19m)
P= 2.21E5 Pa

**Force when submerged in water:**

Vg(pf-po)=ma

F=ma

Weight approximately= 50kg

F= 50kg*9.8m/s

^{2}
F= 490N

**Force on the diver’s glass plate face mask:**

Diameter of glass plate= 16cm = 0.16m

P=F/A

F= P*A

F= 2.21E5 Pa * π*(0.16/2)

^{2}
F= 4400N

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