DEFINITION of 'Aggregate Demand'. The total amount of goods and services demanded in the economy at a given overall price level and in a given time period. It is represented by the aggregate-demand curve, which describes the relationship between price levels and the quantity of output that firms are willing to provide. Normally there is a negative relationship between aggregate demand and the price level. Also known as total spending.
Answers. Best Answer: Up to about 120 decibels, which is about as loud as a gunshot. Some of the factors that affect the loudness are energy released, the environment, and of course the distance you are from the lightning.
I recently heard a clap of thunder so loud it made me scream. Mark Baines, Niles, Ill. Dear Mark, Thunder is the sound generated by lightning and is the result of the shock wave initiated by the explosive expansion of a column of air as it is heated to more than 50,000 (degrees) F by a lightning stroke.