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Intensity

Problems

practice

Write something.
Write something else.
Write something different.
Write something completely different.

numerical

Determine the maximum displacement of a gas molecule in the air from a 1000 Hz tone with an intensity of …
1. 1 pW/m² (threshold of sensation)
2. 1 W/m² (threshold of pain).

The Physics Hypertextbook

No condition is permanent.

© 1998–2011 Glenn Elert