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1. |
Amount of heat energy radiated by unit surface of the sun in the same time workout as |
A. | |
B. | E = π R<sup>2</sup> S/4 π R<sup>2</sup> |
C. | E = 4 π R<sup>2</sup> S/4 π R<sup>2</sup> |
Answer» C. E = 4 ‚âà√¨‚àö√ë R<sup>2</sup> S/4 ‚âà√¨‚àö√ë R<sup>2</sup> | |