We’re asked to **a)** **calculate the de Broglie wavelength **of a **29 g bullet at a velocity of 775 m/s** and to **b)**** determine **if the **wave nature of matter is significant **for the bullet.

Recall that the ** de Broglie wavelength (λ)** can be calculated using:

$\overline{){\mathbf{\lambda}}{\mathbf{=}}\frac{\mathbf{h}}{\mathbf{mv}}}$

where:

**h** = Planck's constant (6.626 × 10^{–34} kg • m^{2}/s)

**m** = mass (in kg)

**v** = velocity (in m/s)

A 0.22 caliber handgun fires a 29 g bullet at a velocity of 775 m/s.

a. Calculate the de Broglie wavelength of the bullet.

b. Is the wave nature of matter significant for bullets?

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