A spherical tank for storing gas under pressure is 25 m in diameter and made of steel 15 mm thick. The yield point of the material is 240 MPa. A factor of safety of 2.5 is desired. What is the maximum permissible internal pressure?

Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Scientist have use computer models to create a series of maps that show how susceptible coastal cities in island countries are to the sea rising at different levels.the map shows that a 1 meter rise would swap cities all along the us eastern seaboard. a 6-meter sea level rise with sub merge a large part of florida. thermal expansion has already raise the oceans 10 to 20 centimeters the most likely cause,directly and indirectly, for such a rise in sea level is