A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg? A) 7.29* 10¯³⁷ m B) 3.26 * 10¯³⁷ m C) 5.08 *10¯³⁰ m D) 1.34 * 10¯³⁰ m E) None of these choices is correct.

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Quizplus · Accepted Answer

The de Broglie wavelength is calculated using λ = h / (mv), where h is Planck's constant (6.626 x 10^-34 m^2 kg/s), m is mass (84.5 kg), and v is velocity (converted to m/s). The calculation gives approximately 7.29 x 10^-37 m.

A Sprinter Must Average 24