Con una rapidez constante de 60 km/h un automóvil recorre una carretera recta de 700 m que tiene una inclinación de 4° respecto a la horizontal un observador nota únicamente el movimiento vertical del auto calcule la magnitud de la velocidad vertical del auto y ve la distancia vertical que recorrió cuál

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?