299792 per second
Sale Price:$400.00
Original Price:$500.00
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The speed of light in a vacuum is a constant value that is denoted by the letter c and is defined as exactly 299,792,458 meters per second. Visible light, other electromagnetic radiation, gravity waves, and other massless particles travel at c. Matter, which has mass, can approach the speed of light, but never reach it. menghasilkan 500 ribu per hari
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