Un camión de carga arranca desde el reposo y mantiene una aceleración cuya magnitud es de 14cm/s2 ¿ En que tiempo recorrerá una distancia de 1.3x10 a la 5 cm ¿que rapidez llevará en ese tiempo en m/s y en km/h

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.