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.
If you hear thunder 36 seconds after you see a flash of lightning how far away is the thunderstorm? About 12 kilometers (7.45 miles). After you see a bolt of  lightning, for every 3 seconds until you hear the thunder, it means  it is one kilometer away (3 seconds = 1 kilomâ¦eter). This is because  the sound wave created by the lightning is traveling at about 330  m/sec (in dry air, the speed of sound is about 343 m/sec or 1127  ft/sec).    You can also divide by 5 to determine the approximate number of  miles. In this case it would be calculated as about 7.2  miles away.