<span>Columbus's voyage was about the acquisition of gold and spices. He started his long voyage with the aim to find India, where he would get those two things from, however, somehow he ended up in the New World, which he thought was India, but was in fact what came to be America. Thus, mistaking America for India, he named the inhabitants of the continent Indians. </span>
The value of a country's currency drops.
The motion of an aircraft through the air can be explained and described by physical principals discovered over 300 years ago by Sir Isaac Newton. Newton worked in many areas of mathematics and physics. He developed the theories of gravitation in 1666, when he was only 23 years old. Some twenty years later, in 1686, he presented his three laws of motion in the "Principia Mathematica Philosophiae Naturalis." The laws are shown above, and the application of these laws to aerodynamics are given on separate slides.
Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia. The key point here is that if there is no net force acting on an object (if all the external forces cancel each other out) then the object will maintain a constant velocity. If that velocity is zero, then the object remains at rest. If an external force is applied, the velocity will change because of the force.
The second law explains how the velocity of an object changes when it is subjected to an external force. The law defines a force to be equal to change in momentum (mass times velocity) per change in time. Newton also developed the calculus of mathematics, and the "changes" expressed in the second law are most accurately defined in differential forms. (Calculus can also be used to determine the velocity and location variations experienced by an object subjected to an external force.) For an object with a constant mass m, the second law states that the force F is the product of an object's mass and its acceleration a:
F = m * a
For an external applied force, the change in velocity depends on the mass of the object. A force will cause a change in velocity; and likewise, a change in velocity will generate a force. The equation works both ways.
Answer:
Assassination of stilicho, Aetius, and Majorian, who helped restore the west, betrayed from the inside, or killed in battle, combined with smallpox epidemics, whilst economic policies which were trash, failed to upkeep legions, and such to protect the empire's borders, which led to its collapse. The east fell, due to incompetent emperors, and the decline of trade, its debt, and the rise of venice, combined with the ottomans closing in on constantinople, and the sack of constantinople.
Explanation:
External military threats were a major cause of Rome's fall, and its effects spread across the empire. ... After Rome was divided, a powerful group known as the Huns began moving west, their numbers growing with captured prisoners and new allies. People from all walks of life were eager to reap the rewards of war. Rome fell through a gradual process because poor economic policies led to a weakened military which allowed the barbarians easy access to the empire. ... In the third century, Rome's emperors embraced harmful economic policies which led to Rome's decline
