Enlist the various Data Analysis methods for study of Infrasonic waves, Seismic Waves, Earthquake prone areas and how AI can be used for future predictions?

The two required components for a generator

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?