[问答题]
You are traveling inhnuby*9rs, mh6n0a l9 a g8fo-sf;- 6 n.q*;uq5fzo bnunlw-mmspaceship at a speed of 0.85c away from Earth. You send a laser beam toward5nq obw-f funn6o*;mm;zq8 . -us-lgf the Earth traveling at velocity c relative to you. What do observers on the Earth measure for the speed of the laser beam?
