A heavy bird sits on a clothesline(which is basically just a horizontal string) will the tension in the clothesline be greater if the line sags a lot or if it say a little?大概意思是一直很重的鸟站在晒衣绳上(可以吧晒衣绳看成

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A heavy bird sits on a clothesline(which is basically just a horizontal string) will the tension in the clothesline be greater if the line sags a lot or if it say a little?大概意思是一直很重的鸟站在晒衣绳上(可以吧晒衣绳看成

A heavy bird sits on a clothesline(which is basically just a horizontal string) will the tension in the clothesline be greater if the line sags a lot or if it say a little?大概意思是一直很重的鸟站在晒衣绳上(可以吧晒衣绳看成
A heavy bird sits on a clothesline(which is basically just a horizontal string) will the tension in the clothesline be greater if the line sags a lot or if it say a little?
大概意思是一直很重的鸟站在晒衣绳上(可以吧晒衣绳看成一条直线),晒衣绳下弯的越多绳子的张力大呢还是下弯的越少绳子张力大?

A heavy bird sits on a clothesline(which is basically just a horizontal string) will the tension in the clothesline be greater if the line sags a lot or if it say a little?大概意思是一直很重的鸟站在晒衣绳上(可以吧晒衣绳看成
晒衣绳下弯的越少绳子的张力大.
首先,这个绳子肯定是有弹性的,如果没有弹性的话,鸟站在上面,绳子是不会下弯的.

然后,如图所示.
PS:对于没有打结的绳子,每一点的拉力相同.




对绳受力分析,鸟的重力不变,画力的矢量三角形,可以直观地看出下弯少的张力大

下弯的少。

Wang Damin sits on the side of the river cooking a meal,with a large bird on his head.The bird is a翻译. a bird sits __ a tree.用in,on填空,应该填什么?为什么树应该把鸟包起来? A heavy bird sits on a clothesline(which is basically just a horizontal string) will the tension in the clothesline be greater if the line sags a lot or if it say a little?大概意思是一直很重的鸟站在晒衣绳上(可以吧晒衣绳看成 A little bird sits in a tree singing song.什么意思 请英文的高手进来翻译下White BirdWhite Bird In a golden cage On a winter's day In the rain White bird In a golden cage Alone The leaves blow Cross the long black road To the darkened skies In its rage But the white bird Just sits in her cag 一篇英语课文(fishing with birds)怎么读,Wang Damin sits on the side of the river cooking a meal,with a large bird on his head.The bird is a cormorant,and Damin is a fishermanHe is over 65 now but still works every day.he is thin,and of av fishing with birds要人工的Wang Damin sits on the side of the river cooking a meal,with a large bird on his head.The bird is a cormorant,and Damin is a fishermanHe is over 65 now but still works every day.he is thin,and of average height,but he is fishing with birdsWang Damin sits on the side of the river cooking a meal,with a large bird on his head.The bird is a cormorant,and Damin is a fishermanHe is over 65 now but still works every day.he is thin,and of average height,but he is very fit.Al little Tom sits on the chair with out ( )a wordsay the hospital i work in sits on a beautifui mountain. a handsome frog sits on the left of He sits ____a boat.A.in B.on C.at What bird lifts heavy things? Just like a bird,fly on the 惊弓之鸟 BIRD ON A WIRE怎么样 1.With a large bird on his head,Wang Damin sits on the side of the river cooking a meal.(观察以上with复合结构,并给出与此用法相同的句子)2.Although he is an elderly man,he is strong enough to control his raft.a.strong enough(√) en 几道英语试题请求帮忙?选择:1.She visits the()and gives them bread and cakes.A.chick B.chicken C.chickens 2.Sometimes she takes a basket and collects eggs()her uncle.A.to B.andC.for3.In summer,she often sits on a gate and watches the bird a bird is() the treethere is a bird ( )the tree填on还是in