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单选题 motional function of point P. 
A. 
B.
C. 
D. 
学科：Physical Modelling A
时间：2023-06-17 14:06:58
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题目1单选题
<img src="https://p.ananas.chaoxing.com/star3/origin/4a5e95a76c785d236a450ee5a44e6c6c.png">A. <img src="https://p.ananas.chaoxing.com/star3/origin/c3ca4ceff8d724772bbdb69ad8a59375.png">B. <img src="https://p.ananas.chaoxing.com/star3/origin/063a0dd0c8dc6f0fac5bbabb4139b2f6.png">C. <img src="https://p.ananas.chaoxing.com/star3/origin/249f4db68a884522245e99e0a2ab5d5b.png">D. <img src="https://p.ananas.chaoxing.com/star3/origin/50fb0e2bc20014fba49822f7fc7a0da6.png">
题目2单选题
A wave traveling on a string is shown by <img src="https://p.ananas.chaoxing.com/star3/origin/7a1736f6882c8b7039b469f318fd8118.png">(SI), soA. λ=1.05m; ω=80 rad/s; f=6 HzB. λ=1.05m; ω=80 rad/s; f=12.7 HzC. λ=2.1m; ω=80 rad/s; f=6 HzD. λ=2.1m; ω=40/π rad/s; f=12.7 Hz
题目3单选题
motional function of point P. <img src="https://p.ananas.chaoxing.com/star3/origin/9c8c81f03621b07c69091cbfbadc137b.png">A. <img src="https://p.ananas.chaoxing.com/star3/origin/791b28ba684b281f6e2fa17ff62be2ec.png">B. <img src="https://p.ananas.chaoxing.com/star3/origin/791b28ba684b281f6e2fa17ff62be2ec.png">C. <img src="https://p.ananas.chaoxing.com/star3/origin/a5e47197006e215913d950c4104a756b.png">D. <img src="https://p.ananas.chaoxing.com/star3/origin/1b9d07c6e9d4e2f314f425eeb8e6554f.png">
题目4单选题
Which of the following statements is not necessarily true regarding mechanical waves?( )A. The wave speed depends on the properties of the medium in which they travelB. They require a medium through which to propagateC. They are sinusoidal in natureD. They carry energy
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