Southwest - The southwest was dry and the Native Americans lived in tiered homes made out of adobe bricks. Famous tribes here include the Navajo Nation, the Apache, and the Pueblo Indians.
Northwest Coast/Plateau - These Native Americans were known for their houses made of cedar planks as well as their totem poles. Tribes include the Nez Perce, Salish, and the Tlingit.
The entertainment industry grew after World War I because people sought easy and inexpensive ways of escaping unhappy memories of recent events.
http://www.gjenvick.com/Immigration/Medical-Mental-InspectionOfImmigrants/1917-05-18-MentalExaminati...
Work is force times distance and power is work over time, so you need to know force and distance to calculate both. :)
