無温 唔記得refractive index formula[唔知係第幾個post]2020 DSE physics 討論區
或者就這樣吧
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無温 唔記得refractive index formula應該係
1.1547.... =1.15
1.1547.... =1.15
應該唔會細過1
細過1點total internal reflection
細過1點total internal reflection
其實佢net force=0就點拆都得
拆normal reaction into horizontal+vertical components就方便少少咁解
拆normal reaction into horizontal+vertical components就方便少少咁解
我考完諗返，覺得似係將a嘅MeV減咗2個質子嘅MeV，再除2就係一個中子嘅MeV。咁就搵到一個中子嘅MeV?
Yes 
我LQ total應該都冇咗10分多啲 Circuit嗰題已經冇咗6分
Yes F=mg tan(theta)
呢樣嘢好似好多小朋友都唔識
淨係鳩背mgsin@
淨係鳩背mgsin@
記錯咗1/m = sin ibtw有冇mc答案
錯咗normal reaction force ah屌
哇 似到十足
咁姐係兩條式兩個unknown?
不過我都rap左
拆平行to slope既方向個陣加少左normal reaction個component
不過我都rap左
拆平行to slope既方向個陣加少左normal reaction個component我係死記睇佢郁個direction
但我唔知at rest個陣係點拆
但我唔知at rest個陣係點拆
如果你要咁拆
Parallel to plane嘅力就有F cos@，mgsin@
Perpendicular嘅有R，Fsin@，mgcos@
拆到傻
Parallel to plane嘅力就有F cos@，mgsin@
Perpendicular嘅有R，Fsin@，mgcos@
拆到傻
斜坡the force exerted by the block on the incline有冇人計到116
咦咁我好似啱喎
F=mgtan@
之後Fsin@+mgcos@=R
不過等對答案啦
F=mgtan@
之後Fsin@+mgcos@=R
不過等對答案啦
唔記得咗disassemble呢個字
寫咗energy required to occur fission
寫咗energy required to occur fission
yes
原來兩個方法一樣
原來兩個方法一樣
個 force 同 normal reaction 係唔係大概 56.6N 同埋 113N
Yes