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admin 发表于 2024-10-30 17:15:23 | 显示全部楼层 |阅读模式
本题目来源于试卷: new new new new,类别为 IB物理学

[填空题]
The Near Earth Asteroid Ren6+d/0tsgkp-i jxmr fa3 r 08u8+pahwedz 6w8nnt -gm ,+dqafh,ezvous (NEAR), after traveling 2.1 billion km, is meant to orbit the asteroid Eros at a height of abognn +a-6zwqd, ,ft8 mhut 15 km . Eros is roughly 40 $\mathrm{~km} \times 6 \mathrm{~km} \times 6 \mathrm{~km}$ . Assume Eros has a density (mass/volume) of about 2.3 $\times 10^{3} \mathrm{~kg} / \mathrm{m}^{3}$ . (a) What will be the period of NEAR as it orbits Eros? $\approx$    $\times 10^4$sec
(b) If Eros were a sphere with the same mass and density, what would its radius be? $\approx$    $\times 10^3$
(c) What would g be at the surface of this spherical Eros?$\approx$    $\times 10^{-3}$




参考答案:
空格1: 2±2%空格2: 7±2%空格3: 5±2%


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