更多“ 质量为<img src="https://nimg.ppkao.com/2019-04/liyunao/2019041615432492287.jpg?sign=9dcd5f8583d0d54de8a5a8806b00123b&t=62d75d49" />的小球与轻弹簧组成的系统，按<img src="https://nimg.ppkao.com/2019-04/liyunao/2019041615433276050.jpg?sign=4d94b09f2e4264399ef8dbf6caf420a5&t=62d75d49" />的规律作谐振动，求：<br /> （1）振动的周期、振幅和初位相及速度与加速度的最大值；<br /> （2）最大的回复力、振动能量、平均动能和平均势能，在哪些位置上动能与势能相等？<br /> （3）t<sub>2</sub>=5s与t<sub>1</sub>=1s两个时刻的位相差；”相关的问题
A、He原子的哈密顿算符为：<img src="https://img.ppkao.com/2019-04/wangjue/2019042315344985782.jpg" />，其中<img src="https://img.ppkao.com/2019-04/wangjue/2019042315350357599.jpg" />表示（），<img src="https://img.ppkao.com/2019-04/wangjue/2019042315351484276.jpg" />表示（），<img src="https://img.ppkao.com/2019-04/wangjue/2019042315353254559.jpg" />表示（）。
A、A.<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309154866509.jpg" />低电平，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155838776.jpg" />三态，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155342124.jpg" />低电平
B.<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309154866509.jpg" />三态，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155838776.jpg" />低电平，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155342124.jpg" />高电平
C.<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309154866509.jpg" />低电平，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155838776.jpg" />高电平，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155342124.jpg" />高电平
D.<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309154866509.jpg" />高电平，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155838776.jpg" />低电平，<img src="https://img.ppkao.com/2017-10/wangjinchen/2017101309155342124.jpg" />高电平
A、A.10<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120814093121702.jpg" />
B.50<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120814093121702.jpg" />
C.75<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120814093121702.jpg" />
D.125<img src="https://img.ppkao.com/2017-12/xieqiushi/2017120814093121702.jpg" />
A、A.<img src="https://img.ppkao.com/2018-08/yiyu/2018082216034241512.jpg" />
B.<img src="https://img.ppkao.com/2018-08/yiyu/2018082216034520234.jpg" />
C.<img src="https://img.ppkao.com/2018-08/yiyu/2018082216034811816.jpg" />
D.<img src="https://img.ppkao.com/2018-08/yiyu/2018082216035385003.jpg" />
A、A.<img src="https://img.ppkao.com/2018-09/chenmenghui/2018091710190122007.jpg" />
B.<img src="https://img.ppkao.com/2018-09/chenmenghui/2018091710190976867.jpg" />
C.<img src="https://img.ppkao.com/2018-09/chenmenghui/2018091710191930428.jpg" />
D.<img src="https://img.ppkao.com/2018-09/chenmenghui/2018091710192761365.jpg" />
A、A.<img src="https://img.ppkao.com/2018-08/lina/2018081916240013633.jpg" />
B.<img src="https://img.ppkao.com/2018-08/lina/2018081916240424865.jpg" />
C.<img src="https://img.ppkao.com/2018-08/lina/2018081916241135122.jpg" />
D.<img src="https://img.ppkao.com/2018-08/lina/2018081916241832814.jpg" />
A、A.<img src="https://img.ppkao.com/2018-04/zhouyun/2018041117140637692.jpg" />
B.<img src="https://img.ppkao.com/2018-04/zhouyun/201804111714091678.jpg" />
C.<img src="https://img.ppkao.com/2018-04/zhouyun/2018041117141476512.jpg" />
D.<img src="https://img.ppkao.com/2018-04/zhouyun/2018041117142045280.jpg" />
E.<img src="https://img.ppkao.com/2018-04/zhouyun/2018041117142344778.jpg" />
A、A.<img src="https://img.ppkao.com/2017-09/wangjinchen/2017091215185676127.jpg" />
B.<img src="https://img.ppkao.com/2017-09/wangjinchen/2017091215190491811.jpg" />
C.<img src="https://img.ppkao.com/2017-09/wangjinchen/2017091215190943236.jpg" />
D.<img src="https://img.ppkao.com/2017-09/wangjinchen/2017091215191318414.jpg" />
A、A.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018081910383053507.jpg" />
B.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018081910384024871.jpg" />
C.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018081910384850601.jpg" />
D.<img src="https://img.ppkao.com/2018-08/longzhengxuan/2018081910385962847.jpg" />
A、A.<img src="https://img.ppkao.com/2017-07/zhangweibo/2017072115032936557.jpg" />
B.<img src="https://img.ppkao.com/2017-07/zhangweibo/2017072115033248583.jpg" />
C.<img src="https://img.ppkao.com/2017-07/zhangweibo/2017072115033662231.jpg" />
D.<img src="https://img.ppkao.com/2017-07/zhangweibo/2017072115033963278.jpg" />
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