PH-2478

Work done

Physics · Secondary 4 · Medium · Work done

1. $7.2 \times 10^5\,\text{J}$
2. $8.0 \times 10^4\,\text{J}$
3. $1.2 \times 10^4\,\text{J}$
4. $7.2 \times 10^4\,\text{J}$

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