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shinaev2013
@shinaev2013
July 2022
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Задачи в одно действие
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tana20101997
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1) Дано: v=3*10^15 Гц A=1,1*10^-19 Дж V-?
h*v=A+m*V^2/2
V=sqrt(2*(h*v-A)/m)=sqrt(2*(6,62*10^-3483*10^15-1,1810^-19)/9,1*10^-31)=1,44*10^6 м/с
2) A=8,3*10^-19 Дж Lm-?
A=h*c/Lm
Lm=h*c/A=6,62*10^-34*3*10^8/8,3*10^-19=2,39*10^-7 м
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Answers & Comments
Verified answer
1) Дано: v=3*10^15 Гц A=1,1*10^-19 Дж V-?h*v=A+m*V^2/2
V=sqrt(2*(h*v-A)/m)=sqrt(2*(6,62*10^-3483*10^15-1,1810^-19)/9,1*10^-31)=1,44*10^6 м/с
2) A=8,3*10^-19 Дж Lm-?
A=h*c/Lm
Lm=h*c/A=6,62*10^-34*3*10^8/8,3*10^-19=2,39*10^-7 м