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.
ballyhoo (third-person singular simple present ballyhoos, present participle ballyhooing, simple past and past participle ballyhooed) To sensationalise or make grand claims. 1933 â Franklin D. Roosevelt, Fireside Chat (7 May) Industry has picked up, railroads are carrying more freight, farm prices are better, but I am not going to indulge in issuing proclamations of over-enthusiastic assurance. We cannot ballyhoo ourselves back to prosperity. Translations