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Tidal forces arise from gravity gradient: near side attracted more than far side, stretching objects. Governs Moon stability and planetary rings.
단계별 가이드
- 1Input primary mass, satellite mass, separation distance
- 2Calculate tidal force gradient
- 3Compare to self-gravity
풀어진 예시
입력
Earth-Moon system
결과
Tidal force sufficient to cause 1m ocean tides
Moon receding ~3.8 cm/year
피해야 할 일반적인 실수
- ✕Confusing tidal force with mass effect
- ✕Neglecting density in Roche limit
자주 묻는 질문
When does tidal force destroy objects?
When exceeds self-gravity: Roche limit. Depends on density, composition.
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