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.
Thunder travels through air at the speed of sound. Officially the speed of sound is 1,087 feet per second (331.3 meters per second) in dry air at 32 degrees F (0 degrees C).ecause it travels at 186,000 miles per second (the speed of light) or one mile in 5.3 millionths of a second, we see it so much sooner than we hear the thunder.