A semispherical $($hemispherical$)$

object with a radius of $6m$ is

submerged in water as shown in the

figure. The object is hinged at

point A and stable on the water

I.

surface.

The specific weight of the water is

$9,79k\frac{N}{m^3}.$

Calculate the mass of the

semispherical object.

$\frac{n}{s}$

In the tank$-$pipe system, water flows

steadily with a velocity of $2\frac{m}{s}$

from the large tank.

Determine the depth, $H,$ of the layer

of oil that covers the water in the

tank$.$

${}_{\text{w}\text{a}\text{t}\text{e}\text{r}}=9,79k\frac{N}{m^3}$

${}_{\text{o}\text{i}\text{l}}=7,857k\frac{N}{m^3}$

a$)$ What will happen to the lungs of a diver diving $10$ meters deep in a lake?

Explain your reasoning.

b$)$ In a facility where jars are being filled with honey, would you want the

temperature to be $10$ degrees or $25$ degrees? Explain your reasoning.

c$)$ Automobile tire pressure must be measured after your vehicle has been sitting

for a few hours, and before you start driving. This is necessary to get the

most accurate reading. Explain this situation using your fluid mechanics

knowledge.