Answers to selected questions (click "SHOW MORE"): 1a2c Contact info: @ What's new in 2015? 1. Closed-caption made by myself! -- not the automatic subtitle anymore. 2. Learning objectives added for each video. 3. Quiz questions added -- including end-of assessment questions and preparatory, exploratory questions. 4. Mistakes fixed and cleaned up. 5. New examples/contents for selective videos. My old videos and playlists will still be left on YouTube. Feel free to watch either one. Personally I think the revised videos are better mainly because of the subtitle. Learning objectives of this video: 1. To demonstrate through examples how to determine the mass moment of inertia of a body about a specified axis. 2. To revisit the parallel axis theorem that was introduced in Statics.