How do the average temperatures and the seasonal changes at the equator differ from those at the poles?

b.transmitters send radio waves, and receivers capture radio waves.

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.

1/0.14nm = 10^10/1.4 a lot

unlike poles attract