Since the kinetic energy increases with the square of the speed, an object doubling its speed has four times as much kinetic energy. For example, a car traveling twice as fast as another requires four times as much distance to stop, assuming a constant braking force.
Google is your friend. :) Bally is an extremely common prefix to town names in Ireland, and is derived from the Gaelic phrase 'Baile na', meaning 'place of'. It is not quite right to translate it 'town of', as there were few, if any, towns in Ireland at the time these names were formed.
The first element bally comes from the word baile meaning a town. Early examples of the surname recording include Mary, the daughter of John Fenney who was christened on April 9th, 1654 at Acton by Nantwich, Cheshire, whilst Thomas Phennah was christened on March 7th 1742 at Churton Heath, also in Cheshire.he main O' Fiannaidh clan was located in the parish of Easkey, County Sligo, whilst a smaller sept known as the Feeneys, who write their name O' Fidhne in Irish, resided in County Galway.