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What is the wavelength of a dog (m=20kg) moving at 2m/s? compare this to a proton...

What is the wavelength of a dog (m=20kg) moving at 2m/s? compare this to a proton moving at 10^7m/s.

How does this explain why we dont worry about wavelengths of macroscopic objects?

Show step by step please and thank you!
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