What is the pendulums mechanical energy at position 1

The united states economy is one in which producers are generally free to produce what they want and consumers are free to purchase what they desire, so long as no laws are broken. at the same time, however, the government does regulate some aspects of the economy. the u.s. can best be described as which of the following a mixed economy b liberated economy c command economy d market economy

What is an attack against a country called?

How did the rise to power and reign of alexander most affect greece