Hi, there! :)
Answer: True.
Particles within planetary rings are subject to the gravitational forces of the planet they orbit, as well as the centrifugal forces that result from their own motion. In order for these particles to remain in orbit around the planet, they must travel at a specific velocity, known as the Keplerian velocity. This velocity is determined by the mass of the planet, the distance of the particle from the planet's center, and the gravitational constant. Particles that rotate at the Keplerian velocity will remain in a stable orbit around the planet, while particles that move too slowly or too quickly will either collide with the planet or escape its gravitational pull. Therefore, particles within planetary rings are observed to rotate at the Keplerian velocity, ensuring their stability within the ring system.
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