La carga puntual q1 = -5.00 nC se encuentra en el origen y la carga puntual q2 = +3.00 nC está sobre el eje x en x = 3.00 cm. El punto P está sobre el eje y en y = 4.00 cm. A) Calcule los campos eléctricos E S 1 y E S 2 en el punto P debidos a las cargas q1 y q2. Exprese los resultados en términos de vectores unitarios (vea el ejemplo 21.6). B) Utilice los resultados del inciso a) para obtener el campo resultante en P, expresado con notación de vectores unitarios.

Which feature indicates that mars resides in the inner region of the solar system

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k