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Physics, 24.08.2019 07:00 cindyc1103
Photoelectrons with a maximum speed of 7.00 · 105 m/s are ejected from a surface in the presence of light with a frequency of 8.00 · 1014hz. if the mass of an electron is 9.1 · 10-31 kg, calculate the maximum kinetic energy of a single electron, in joules.
j
6.3 x 10-25
4.4 x 10-19
3.2 x 10-25
2.2 x 10-19
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