what is the relationship between the potential and kinetic energy of an object as in the roller coaster example

Answer asap! what was one main difference between japanese and european feudalism? a)japanese feudalism emerged out of a period of violence; european feudalism did not.b)japanese feudalism was influenced by religions other than christianity.european feudalism involved the exchange of land for services; c)japanese feudalism did not.d)japanese samurai and european knights did not follow similar codes of conduct.

  following the agreement that was reached in the treaty of indian springs in 1825, chief william mcintosh lost his life. why did this happen

In which type of economy are these decisions made by the producers , consumers, and the goverment?