Next consider the Universe as the system of interest. Write out the Energy Principle for this system. Remember that terms on the left hand side should include all energy changes for the system, while the terms on the right hand side shold relate to the surroundings.

500 books can be produced by one man and a printing press within 5 months, while a copyist can only produce one in the same amount of time

arresting and exicuting citizens

c. troops marched forward in close formation against newer, more accurate weapons

because its important to learn about other countries and how high tech they are compared to us. also its good to learn about other cultures and how ours differs and in common also we need to learn about companies that we still buy since they ship it here.