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A metal whose threshold frequency is 1.37×1015 s−1 emits an electron with a velocity of 6.71×105...

A metal whose threshold frequency is 1.37×1015 s−1 emits an electron with a velocity of 6.71×105 m/s when radiation of 1.65×1015 s−1 strikes the metal.

Use these data to calculate the mass of the electron. Express your answer with the appropriate units.

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