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Among the elementary subatomic particles of physics is the muon, which decays within a few nanoseconds after formation. The muon has a rest mass 1.126 109 times that of a proton. Calculate the de Broglie wavelength associated with a muon traveling at a velocity of 3.35 104 cm/s.

  • chem -

    w = h/mv
    h = Planck's constant
    m = mass proton x factor in the problem in kg
    v = velocity in m/s

  • chem -

    1st I took 1.126e9 and multiplied it by 1.67262158e-27 kg to get your mass of 1.8833719e-18 kg. Then I did my dimensional analysis and had ((6.626e-34 J*s)*1s*100cm)/((1.8833719e-18 kg)(3.35e4 cm)*1m) and I got an answer of 1.05e-18 m using 3 sig figs. :)

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