replica balenciaga le caracole small shoulder bag celine teen nino soft cow leather handbag apricot replica chanel woc with cc details on strap ap1450 in lambskin aaa herms birkin 30 cm handbag in blue mykonos and white togo leather chanel classic flap mini with golden ball 3a42e95c chanel 22 bag handbag black shiny calfskin 45cm hermes kelly 28taxfree grade chanel crossbody bag with handle replica 7c3315ca horsebit 1955 small shoulder bag2449 celine triomphe shiny cow leather wallet trio messenger m46694 celine cabas drawstring cuir triomphe in smooth calfskin black8013 gucci zumi grainy leather medium top handle bag 5647146857 chanel classic medium blue lambskin rainbow hardware 8211 cb031 superfake dior bobby bag luxury replica handbag in classic grey5597 christian dior medium dior tote bag black for women 14in 36cm1755 celine medium celine victoire bag in supple calfskin 28333 louis vuitton lv x tm onthego gm replica11n include box dust bag louis vuitton alma bb n41221 brown hermes birkin bag 25 a169e101 to luxury edition bags sly 1755107 fendi sunshine tote 2 manhattan medium shopping bag in box saint laurent leather 87deb2e7 louis vuitton onthego pm tote bag 8211 lb172 dior book tote shopping bag in pink leather3365 wallets archives louis vuitton replica store replicate ysl niki medium in vintage leather11 replica 71071bcd dior mini lady dior satin embroidered with pearls bag gucci gg marmont small shoulder bag 4476322327 hermes herbag zip 31 bag 11b43369 women s crush medium chain bag quilted in black 14f00ea5 fendi way bag large gucci blondie leather white8931 shop gucci horsebit 1955 shoulder bag with geometric print2342 celine multpochette logo printed cow leather mini handbag celine dupes bags celine nino small logo printed cowhide leather handbag old flower saint laurent sac de jour baby gucci queen margaret gg supreme medium shoulder bag 4765412196 superfake handbags the mini lady dior blue replica youll love5217 为什么wuti的重量会变?_数理化之谜 - 棒子小说网
电脑版
首页

搜索 繁体

为什么wuti的重量会变?

本站新(短)域名:xiguashuwu.com

为什么wuti的重量会变?

曾经发生过这样一件事:一个商人在荷兰买了5000吨鱼运往索ma里的mo加迪沙。到了那里,用弹簧秤一称,鱼竟少了30多吨。lun船沿途并没有靠过岸,装卸中的损耗也不可能这样大,鱼到哪里去了呢?原来,这是地球自转和地球引力开的玩笑。一个wuti的重,就是wuti所受的重力,是由地球对wuti的xi引所造成的。但地球的自转,会产生一zhong自转离心力。因此wuti所受的重力,等于地心引力和自转惯xing离心力的合力。由于地球是个椭球ti,越靠近赤dao,地面与地心的距离越远,地心引力也就越小;另一方面,越靠近赤dao,wuti随地球自转产生的自转离心力却越来越大。所以,越是靠近赤dao,wuti实际所受重力就越小。5000吨重的鱼,从中纬度的荷兰运到赤dao附近的索ma里,所受重力必然逐渐减小,难怪过秤时要短少30多吨了。

热门小说推荐

最近更新小说