Basically, a passive radiator is a reactionary device as the name suggests. When a driver (such as a subwoofer) is mounted to a sealed speaker box (enclosure), the physical forward/back movement of the speaker affects the internal air pressure of the enclosure.
Three landforms created by wind are; sand dunes, yardangs (half-teardrop shaped formations hill sized, and deflation hollows (wind swept depressions.
Transcript of 5 landforms created by deposition:) Beaches:) a beach is where sand is deposited by wave movement. This is formed by the deposition of sand and gravel. the sand is under the water. When the tides are low, you have a sandy beach. Glaciers:) When glaciers move, they pick up rocks and many different things on the ground.