Which Observational Fact Leads Scientists to the Conclusion That the Particles

question 63

Multiple Choice

Which observational fact leads scientists to the conclusion that the particles making up Saturn's rings are ice or ice-covered rocks?

• A) high albedo, or reflectivity, of the ring material
• B) distribution of their sizes; water ice is only strong enough to form the objects of the sizes detected in the rings
• C) spectrum of the reflected light, which shows features unique to water ice
• D) thin layer of haze above and below the rings originating from evaporated water vapor

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Definitions:

Delta

In electrical engineering, it often refers to a triangular connection in a three-phase system where the end of one winding is connected to the start of the next.

Three-Phase Power Systems

Electrical power systems that use three alternating currents or phases, each phase being out of phase with the other by one-third of a complete cycle, widely used for power transmission and large electric motors.

Delivered Power

The amount of electrical power supplied to a load or system by its source.

Cycle

In an alternating current (AC) circuit, one complete waveform, including a positive and a negative swing, usually measured in hertz (Hz).