Si el grafico de velocidad vs tiempo muestra una gráfica horizontal, ¿Cuál(es) de las siguientes afirmaciones es(son) siempre correcta(s)? I. La rapidez del objeto es siempre cero
II. La aceleración del objeto es cero
III. La distancia recorrida es cero

The air that we breath is made mostly of which gaseous molecule

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?