What is the wavelength, in nm, associated with a 2000. kg truck traveling at a speed of 20 m/s, that is, considering the truck to be a "matter" wave?

Question

Quizplus · Accepted Answer

The de Broglie wavelength of a particle is given by: 
λ = h/p
Where h is Planck's constant and p is the momentum of the particle. The momentum of the truck can be calculated using the formula:
p = mv
Where m is the mass of the truck and v is its velocity.
Plugging in the values, we get:
p = (2000 kg) x (20 m/s) = 40000 kg m/s
Now, we can calculate the de Broglie wavelength:
λ = h/p = (6.626 x 10^-34 J s) / (40000 kg m/s) = 1.66 x 10^-29 m = 1.66 x 10^-20 nm
Therefore, the best choice is E, 1.66 × 10^-20 nm.

What Is the Wavelength, in Nm, Associated with a 2000