1 In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels. 2  In water waves, energy is transferred through the vibration of the water particles. In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels. 2  In water waves, energy is transferred through the vibration of the water particles.
The 2016 Longmont, Colorado, population is 92,088. There are 3,379 people per square mile (population density).
Longford is the county town of County Longford in Ireland. It has a population of 10,008 according to the 2016 census. It is the biggest town in the county and about one third of the county's population lives there. Longford lies at the meeting of Ireland's N4 and N5 National Primary Route roads, which means that traffic traveling between Dublin and County Mayo, or North County Roscommon passes around the town. The station in Longford on the Dublin-Sligo line is important for commuters.