Answer to Question #245028 in Physics for emily

Question

Interstellar space, far from any stars, is filled with a very low density of hydrogen atoms (H, not H2). The number density is about 1atom / cm³ and the temperature is about 3K.

In certain region of space, the density of hydrogen atoms is 2 atoms / cm³ . Estimate the number of collisions experienced by the spherical interstellar ship of diameter of 260m moving at the 50% of the speed of light in the interstellar space in 1second of its motion.

Give your result in millions of collisions (10⁶) to the nearest tenth. (e.g. For a result of 12 345 678.90 collisions, input 12.3)

Take the speed of light to be 300000km/s.

Answer 1

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