Un carro de juguete se mueve sobre un rail recto. la ecuación de la trayectoria es: r=2(3t^2 - 1)i + 5t j en unidades del si. calcular la velocidad instantánea y su rapidez en t= 2,5 segundos.

Which of the following is a homogenous mixture? o a. a toy box filled with toys o b. blood o c. trail mix o d. spaghetti and meatballs submit

Which situation will have the highest resistance? a.long wire and high temperatureb.short wire and high temperaturec.long wire and cold temperaturedshort wire and low temperature

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell