The court of Appeals is tasked to determine whether or not the law is applied correctly in the trial court. The Appeals courts consist of three judges and don't use a jury. The court of Appeals don't retry cases or hear new evidence but review the procedures and decisions made by the trial court to ensure that the proceedings were fair and proper law was applied correctly.
I don’t really know but Friction and Hydraulics are a principle but I feel like it’s O:)
One of the major consequences of people migrating from the rural area to the city was that population density rose and living conditions in many cities became very poor.