What is the energy equivalent of an object with a mass of 1 point 0 5 g ?

Use Einstein’s equation, E = mc². Convert 1.05 g to kilograms: 1.05 g = 0.00105 kg. Then E = 0.00105 × (3.00 × 10⁸ m/s)² = 9.45 × 10¹³ J, so the energy equivalent is 9.45 × 10¹³ joules (choice B).

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