In Hamilton Country, where Westfield sits, the Hispanic population has increased () percent in 10 years.
A.70
B.31
C.143
D.58
A.70
B.31
C.143
D.58
第2题
A.错误
B.正确
第4题
How many times has Hamilton collected contributions for the last month?
A.Six times.
B.Nine times.
C.Twelve times.
D.Thirteen times.
第5题
Hamilton is expected to______.
A.show more kindness
B.discontinue the present practice
C.quit being the organizer for gift giving
D.know more about co-workers" families
第6题
A.has skated
B.has been skating
C.both possible
第7题
设体系的Hamilton量为H0时,基态能级和波函数为E0,ψ0.设体系受到微扰H'作用,Hamilton量变成H=H0+H'.取基态试探波函数为
(1)
λ为变分参数.试用变分法求H的基态能级上限,计算中保留二级小量.略去三级小量.
第9题
有一个量子力学体系,Hamilton量记为H'0,能级和正交归一化的本征函数为
,
设体系受到微扰作用,微扰后的Hamilton量可以表示成下列矩阵形式(H0表象):
(1)
设无偶然简并,试用二级微扰论计算体系能级.
第11题
一维谐振子的Hamilton算符为
(1)
x与p满足基本对易式
[x,p]=xp-px=ih (2)
引入无量纲算符
,(3)
(4)