The characteristic wavelength of a traveling particle varies inversely with the mass of the particle. Calculate the de Broglie wavelength of a particle having the mass of an everyday object, mass = 9.00 g, traveling at ordinary speed 1.00 cm s-1.
How would this computed ? compare with the dimensions of a typical atom? (-1 if much smaller, 0 if about the same magnitude, +1 if much bigger)
What does this comparison tell you about the meaningfulness of the wavelike properties of an ordinary object?