The chicken's eggs are fertilized interally
In an extremely simplified explanation,
What happens is that the steam (heat) that is generated by the burning of coal is used to rotate the motor of the steam engine.
K=0.5 mu×u
K=2200J no matter the direction
V = f(wavelength)
22.0 = 0.0680 (wavelength)
wavelength = 323.52 m