Function wave_speed_kernel 

pub fn wave_speed_kernel(
    frequency: &Frequency,
    wavelength: &Length,
) -> Result<Speed, PhysicsError>

Calculates the speed of a wave given its frequency and wavelength.

Arguments

• frequency - The frequency ($f$) of the wave.
• wavelength - The wavelength ($\lambda$) of the wave.

Returns

• Ok(Speed) - The calculated wave speed.
• Err(PhysicsError) - If the resulting speed violates physical invariants (negative), though types prevent this input.