Leaves are matter, and he ability to react is a chemical property to matter
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fiber-optic cable is composed of two concentric layers, called the core and the cladding, as illustrated in Figure 3-1. The core and cladding have different refractive indices, with the core having a refractive index of n1, and the cladding having a refractive index of n2. The index of refraction is a way of measuring the speed of light in a material. Light travels fastest in a vacuum. The actual speed of light in a vacuum is 300,000 kilometers per second, or 186,000 miles per second.
Answer:
c = 204 x 5 = 1020 m/s so it travels 1020 meters in 1 second.
Explanation:
