(2/2)ҳ
11%٣
ָӹټ״˼
Էڡܡ?
ָӹָӽһάϸߡ
άռչ30kmÿ
άռĹάռ10Ϊ300kmÿ롣
עԭڸάٵάռάռٵ10ʽ趨Ϊ˽貹
άռĹָΪάռٵİٱԼ30000kmÿ롣ٶȣᴩֻҪ0.1롣
άռչָΪάռٵһǧԼ3000kmÿ롣ٶȣ̫ϵϵֻҪ13롣
άռչΪάռһ3000kmÿ롣
άռĹٳ߶£15ľ벻Ҫ 0.047ҼɵִͬΪ˲䣬ǴԽϵҲֻҪ5ӡ
ָӹٲǰάռɵϸߡ
άռΪάռʮΪ3kmÿ룬ֲٶ£ϵֱʮ꣩Լ3롣
ˣάռ߾̼ϵڵҪʽʽ£ϵڻ3볬ӳٽάָӹõͨѶʽ
ϢͨʽȻԶӾijЧӦӸЧܷdzֲҪдڵӳϫ̮Ϊ̬γɾӣٽһάռ״̬
˸ͨѶͼʹãͼͺúõʹͨѶȡɽг뽻㹻ˡ
ھάռΪάռһٶѾֻʺÿѧʾԼΪ310 km/s 1000000 = 310 km/sٶȿԽ20ڹֱKBCնҪ6.3룬Ŀɹ۲棨930ڹ꣩ҲֻҪ3롣
ʮάռٺʮһάռѾʵ壬ͬ˲ִȻԸһ֣ʮάռĹΪάռһǧ310 km/s 10000000 = 310 km/s
ʮһάռΪʮάռһڱ310 km/s 10= 310 km/sѾھ˽ǰľ뵥λɡʱ䵥λɡ롿11άȹԼΪҲһdzӴ֡
11άĹԼΪ3170ڹ꣯롣
ԼؽʮһάռΪԼ 0.162/ʿʱ䡣
ÿʿʱڣƶ162ףζʮһάܶ쳣ֲԶάĺڶƽ㡣
Ҳӡ֤ߴлȡһؼ鱨11άʱǽġҲȷʵϡޡĽۣʮάٶȿʼάپͼ˲ִһ䡣
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ʧɫŶ·Ƶģŵһ۵ķٶȸٴͻƣͻ12٣
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