Answer:
So, instead of fossil fuels, the magnetic field thats creatd by electrified coils in the guideway walls, and on the track combine to propel the train. Just think of it as playing with magnets. The opposite attract while if you put norh to north or south to south, they will push away from each ther. This is just the basic principle of electromagnetic propulsion
Explanation:
Answer:
if the frequency of the wave if tripled then period of wave gets tripled
Ek = 1/2 x m x v ²
1/2 x 620.0 x 9.00 ² = 25,100