P14.003A spherical gas-storage tank with an inside diameter of 8.1 m is being constructed to store gas under an internal pressure of 1.26 MPa. The tank will be constructed from steel that has a yield strength of 270 MPa. If a factor of safety of 2.0 with respect to the yield strength is required, determine the minimum wall thickness tmin required for the spherical tank.

The minimum wall thickness required for the spherical tank is 0.0189 m

Explanation:

Given data:

d = inside diameter = 8.1 m

P = internal pressure = 1.26 MPa

σ = 270 MPa

factor of safety = 2

Question: Determine the minimum wall thickness required for the spherical tank, tmin = ?

The allow factor of safety:

The minimun wall thickness:

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.