1光年等于多少米?等于多少千米?
问题描述:
1光年等于多少米?等于多少千米?
答
光速c=299,792,458km/s。一光年等于94,605亿千米。
答
9.5×10⒖米
答
光速c=299,792,458km/s.一光年等于94,605亿千米
,等于9,460,500,000,000米.