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.
The interior of the earth emits natural microspulsations of approximately 10 Hz (Hertz), that is 10 oscillations per second. Lightning creates fields in a frequency range of 10 to 20 KHz (thousands of oscillations per second). At the other end of the spectrum light has become visible with billions of oscillations.