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Home > Physics > Core > Space > Space: 4. Current and emerging understanding about time and space

1. Mass at 0.75 c = 2000 x (1 - (0.75)²/1)^-0.5 = 3024 kg
   Mass at 0.90 c = 2000 x (1 - (0.90)²/1)^-0.5 = 4588 kg
   
   
2. E = m c² = (4588 – 2000) x (3 x 10⁸)² = 2.3 x 10²⁰ J

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