Un remolque mueve un tren con infinitos vagones, cada uno con el doble de masa que el vagón anterior, sosteniendo infinitas cajas, cada una con la mitad de la masa que la caja anterior, se mueve con aceleración
a. Calcule:
) La fuerza de reacción ejercida por la k-ésima caja del n-ésimo vagón

An airplane travels from st. louis to portland, oregon in 4.33 hours. if the distance traveled is 2,742 kilometers. what is the airplane's average speed? - the airplane returns to st. louis by the same route. because the prevailing winds push the airplane along, the return trip takes only 3.75 hours. what is the average speed for this trip? - the airplane refuels in st. louis and continues on to boston. it travels at an average speed of 610 km/h. if the trip takes 3.75 hours. what is the flight distance between st. louis and boston?