Engineering Board Exam Reviewer · Physics · medium
How much energy is equivalent to 1 g of mass? (c = 3 × 108 m/s)
- 3 × 105 J
- 9 × 1016 J
- 4.5 × 1013 J
- 9 × 1013 J
Answer
D. 9 × 1013 J
Solution
E = mc2 = 0.001(3 × 108)2 = 9 × 1013 J.
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