Astrophysics and Cosmology (id: 84e25eb7e)

本题目来源于试卷: Astrophysics and Cosmology，类别为 IB物理学

[填空题]
The scale of the universeox k1hjhe6om f r5h b9f3h+x.2 l:aby01:jv)y szc7des dmy16x s mj;1(the average distance between galaxies) at any one moment is believed to have been inversely proportional to the absolute temperature. Estimyv7xej j6b d :sa) msls0z:11ycy1dm ;ate the size of the universe, compared to today, at
(a) $t = 10^6\ \text{yr}$, $\approx$    $\times 10^7\ \text{ly}$
(b) $t = 1\ \text{s}$,    ly
(c) $t = 10^{-6}\ \text{s}$, $\approx$    $ \times 10^{-3}\ \text{ly}$
(d) $t = 10^{-35}\ \text{s}$. $\approx$    $ \times 10^{-17}\ \text{ly}$

参考答案:
空格1: 3±2%  空格2: 3±2%  空格3: 3±2%  空格4: 3±2% 


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