A 20 m diameter spherical thin walled cylindrical tank is to be used to store a gas. The thickness of the wall is 10 mm and the material can sustain a maximum stress of 125 MPa. What is the maximum permissible gas pressure in the sphere?

Find the pressure at the bottom of a tank containing a 3 m thick layer of mercury, a 2 m thick layer of water, and a 4 m thick layer of oil (D = 700 kg/m3). The tank is open to the air.

I left a half full 500 ml water bottle in my car after going to the gym one morning. When I returned to my car in the afternoon, the bottom of the bottle had deformed, as shown in the figure. The deformation increased the volume of the bottle by 10 ml and the temperature when I capped it was 15C and when I returned it was 40C. Estimate the pressure (psig) in the bottle when I returned to my car. List any assumptions.

Consider a U-tube filled with mercury as shown in Figure 2. The diameter of the right arm of the U-tube is D = 2 cm, and the diameter of the left arm is twice that. Heavy oil with a specific д. gravity of 3.0 is poured into the left arm, forcing some mercury from the left arm into the right one. Determine the maximum amount of oil that can be added into the left arm. Hint: The change in volume in the left column is equal to the change in volume in the right column (Begin your solution using this hint.) ۵۷۱ -V 2 =oV Oil poured in here SG= 3.0 2D 20 cm 4CM veli D=2 cm Mercury SG= 13.6 اده