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 wavelength (λ) of a matter wave associated with an object (e.g. a truck) can be calculated using the de Broglie wavelength equation: 
λ = h / p 
where h is the Planck's constant and p is the momentum of the object.

The momentum (p) of the truck can be calculated using the equation: 
p = mv 
where m is the mass of the truck and v is its velocity.

Plugging in the values: 
m = 2000 kg 
v = 20 m/s

p = mv = (2000 kg)(20 m/s) = 40000 kg*m/s

So, 
λ = h / p = (6.626 x 10^-34 J*s) / (40000 kg*m/s)

λ = 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