A lake is 332 meters deep at its deepest point The density o

A lake is 33.2 meters deep at its deepest point. The density of water in the lake is 1000 kg/m3.

Part A)

the pressure i calculated as follows:

P = P_atm + pgh = (1.013 X 10^5) + (1000)(9.8)(33.2) = 426660 Pa = 4.26X 10^5 Pa

Part B)
The volume of the rock is

V = m/density

= (136/9.8)/2300

= 6.03 X 10^-3 m^3

the fprce Fb is,

Fb = pVg =(1000) (6.03 X 10^-3)(9.8) = 59.1 N

Tension is,

T = W - Fb = 136 - 59.1 = 76.9 N