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.
Contrary to what some think, thunder is not caused by the lightning bolt âbreaking the sound barrierâ. If this were true, then every time we turned on a light in the house we would hear a sonic boom! The speed of light is about 186,282 miles per second. The speed of sound is about 0.211 miles per second at sea level.