Energy was lost due to work done by the ball pushing on the floor during the collision.
Answer:
Option B
Explanation:
As per Newton's third law of motion, every action has an equal and opposite reaction. So if an object is made to drop from height to reach the floor, then its kinetic energy when the object is moving will be transferred to the floor on hitting the floor. Thus, this loss of kinetic energy will lead to rebounding of ball to 90% of original fixed height and not to the same height. So the point the ball hits the floor, the kinetic energy of the ball will be utilized to push on the the floor such that the ball can rebound itself. Hence, it is stated that the loss of kinetic energy of the ball during collision is because it is lost due to work done by the ball pushing on the floor during the collision.
The one that best summarizes the Russian economy between 1998 and 2007 was: Its economy was in crisis until the price of oil began to rise.
The communistic regime in Russia has destroyed Russia's economy and killed millions of Russsian Citizen.
In 1998 and 2007, Russia's Government heavily invested in the energy sector and nationalize a lot of Companies in this particular sector of business (mostly oil) and managed to rake in a huge profit when the oil price rises.
Answer:
Led an army into the American mainland eager to claim new land for Spain.
Explanation:
Hernán Cortés is the conqueror of Mexico. He defeated the Aztec empire and took possession of its territories for the Spanish kingdom. On the ruins of Tenochtitlán, the Aztec capital, he founded a new city. New Spain was the name given to the new colony by the crown. Cortés was his first governor.
