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If the distance between the earth and th...

If the distance between the earth and the Sun were half its present value, the number of days in a year would have been

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To solve the problem of how many days there would be in a year if the distance between the Earth and the Sun were half its present value, we can use Kepler's Third Law of planetary motion. This law states that the square of the orbital period (T) of a planet is directly proportional to the cube of the semi-major axis (a) of its orbit. ### Step-by-Step Solution: 1. **Understanding Kepler's Third Law**: Kepler's Third Law is mathematically expressed as: \[ T^2 \propto a^3 ...
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