Calculate the de Broglie wavelength of a 0.44 kg ball moving with a constant velocity of 26 m/s (about 60 mi/h).

To calculate the de Broglie wavelength of an object, you need to know its momentum and use the equation:

λ = h / p

Where:
λ is the de Broglie wavelength
h is the Planck's constant (6.626 x 10^-34 J s)
p is the momentum of the object

To calculate the momentum of the ball, you can use the equation:

p = m * v

Where:
p is the momentum
m is the mass of the object
v is the velocity

Given that the mass of the ball is 0.44 kg and the velocity is 26 m/s, we can calculate the momentum:

p = 0.44 kg * 26 m/s = 11.44 kg·m/s

Now we can use this value to calculate the de Broglie wavelength:

λ = 6.626 x 10^-34 J s / 11.44 kg·m/s

Calculating the division, we get:

λ ≈ 5.78 x 10^-35 m

Therefore, the de Broglie wavelength of the 0.44 kg ball moving with a velocity of 26 m/s is approximately 5.78 x 10^-35 meters.