问题
多选题
如图所示演示装置,一根张紧的水平绳上挂着5个单摆,其中A、D摆长相同,先使A摆摆动,其余各摆也摆动起来,可以发现( ) A.各摆摆动的周期均与A摆相同 B.B摆振动的周期最短 C.摆振动的周期最长 D.D摆的振幅最大 ![]() |
答案
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如图所示演示装置,一根张紧的水平绳上挂着5个单摆,其中A、D摆长相同,先使A摆摆动,其余各摆也摆动起来,可以发现( ) A.各摆摆动的周期均与A摆相同 B.B摆振动的周期最短 C.摆振动的周期最长 D.D摆的振幅最大 ![]() |
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CONVERSATION 2 (Questions 5-8)
Booking Theatre Tickets |
The speaker is a driving instuctor over (5) \r\n (6) instructor. Learning, from a private instructor is (7) than going to a big school. But at the moment the speaker is fully booked and his prices are quite (8) |