Calcular el numero de onda sabiendo que su periodo es de 13,0s y su velocidad de propagacion es de 197,5m/s

ayuda por faaa

Explanation:

We can use the equation of the wave number in terms of velocity and frequency.

Where:

I hope it helps you!

a=d/t

a="triangle"v/t

explanation:

a = acceleration

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.