1. The speed (in light-years per year) of the debris is 4.67×10⁻² light-years / year
2. The speed (in Km/h) of the debris is 50436000 Km/h
3. The speed of light is 21.4 times the speed of the debris
<h3>What is speed? </h3>
Speed is the distance travelled per unit. Mathematically, it can be expressed as:
Speed = distance / time
<h3>How to determine the speed in light-years per year</h3>
- Distance = 0.7 light-years
- Time = 15 years
- Speed = ?
Speed = distance / time
Speed = 0.7 / 15
Speed = 4.67×10⁻² light-years / year
<h3>2. How to determine the speed in Km/h</h3>
- Speed (in light-years per year) = 4.67×10⁻² light-years / year
- Speed (in Km/h) = ?
1 light-years / year = 1.08×10⁹ Km/h
Therefore,
4.67×10⁻² light-years / year = 4.67×10⁻² × 1.08×10⁹
4.67×10⁻² light-years / year = 50436000 Km/h
<h3>3. Comparison of the speed of the debris with the speed of light</h3>
- Speed of light = 3×10⁸ m/s
- Speed of debris = 50436000 Km/h = 50436000 / 3.6 = 14010000 m/s
- Comparison =?
Comparison = Speed of light / speed of debris
Speed of light / speed of debris = 3×10⁸ / 14010000
Speed of light / speed of debris = 21.4
Cross multiply
Speed of light = 21.4 × Speed of debris
Learn more about speed:
brainly.com/question/680492
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