Calculate (or estimate) the de Broglie wavelength of the following objects:
a. An electron with a kinetic energy of 1 eV, 100 eV, or 10 keV.
b. An Ar ion with a kinetic energy of 1 eV or 100 eV.
c. Usain Bolt when he crosses the finish line of a 100 m dash.
d. A Lamborghini at its top speed of 350 km/h.