The Heisenberg uncertainty principle states that [img=84x23]1803bd5bfba7765.png[/img]. If we locate an electron to within [img=41x22]1803bd5c044dcf9.png[/img] m, then what is the uncertainty in its speed ? ([img=175x24]1803bd5c0e1c4ef.png[/img],[img=169x26]1803bd5c1735824.png[/img])
A: [img=122x24]1803bd5c20e3dfa.png[/img]
B: [img=122x24]1803bd5c29a2927.png[/img]
C: [img=122x24]1803bd5c31ec006.png[/img]
D: [img=122x24]1803bd5c3a8c231.png[/img]
A: [img=122x24]1803bd5c20e3dfa.png[/img]
B: [img=122x24]1803bd5c29a2927.png[/img]
C: [img=122x24]1803bd5c31ec006.png[/img]
D: [img=122x24]1803bd5c3a8c231.png[/img]
举一反三
- 设二维随机变量（X,Y）的联合概率密度为[img=433x109]17d609a6fbff1b1.png[/img]则[img=133x37]17d609a707b0d2a.png[/img]=()。 A: 3/20 B: 5/16 C: 5/24 D: 5/18
- 不等式[img=146x24]18031ef3f198106.png[/img]的解集是() A: {x|－3＜x＜5} B: R C: {x|x＞5或x＜－3} D: {x|－5＜x＜3}
- 已知单线激光雷达数据点（ρ, θ）=（10，30°），计算x、y： A: [img=118x28]18036c00fcf56fb.png[/img] B: [img=118x28]18036c010630126.png[/img] C: x= 5， y=5 D: x=10, y=5
- 求不定积分[img=115x46]17da65382f8e1b9.png[/img]； （ ） A: x - (5*log(x + 1))/4 - (3*log(x - 3)) B: (5*log(x + 1))/4 - (3*log(x - 3)) C: x - (5*log(x + 1))/4 - (3*log(x - 3))/4 D: (5*log(x + 1))/4 - (3*log(x - 3))/4
- 设[img=84x22]17e0ab7201ab5da.jpg[/img],且P{2<;X<;4}=0.1,不查表计算P{X<;0}=（ ） A: 1/5 B: 2/5 C: 3/5 D: 4/5