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1 = an 75.0 kg athlete running a "4-minute mile" (i.e. 4.00 min/mile) 2 = Earth...

1 = an 75.0 kg athlete running a "4-minute mile" (i.e. 4.00 min/mile) 2 = Earth (mass = 6.00 × 1027 g) moving through space at 3.10 × 104 m/s 3. The work function (Φ) for a metal is 6.20×10-19 J. What is the longest wavelength of electromagnetic radiation that can eject an electron from the surface of a piece of the metal?

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