Fw: [問題] 量子力學一題
※ [本文轉錄自 Chemistry 看板 #1JGDnZBW ]
作者: Laoda245566 () 看板: Chemistry
標題: [問題] 量子力學一題
時間: Sun Apr 6 12:47:29 2014
Suppose that you designed a spacecraft to work by
photon pressure. The sail was a completely absorbing fabric
of area 1.0 km^2 and you directed a red laser beam of wavelength 650 nm
on to it from a base on the Moon. What is the force?
我想從動量變化量去推
不過不知道時間的變數
請問這題該如何下手?
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推
04/06 13:11, , 1F
04/06 13:11, 1F
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04/06 13:28, , 2F
04/06 13:28, 2F
※ 發信站: 批踢踢實業坊(ptt.cc)
※ 轉錄者: Laoda245566 (1.171.166.152), 04/06/2014 15:12:41
推
04/06 15:27, , 3F
04/06 15:27, 3F