Una persona de 85 kg, sube en ascensor entre el primer y octavo piso de un edificio. Se puede afirmar, con respecto al trabajo realizado por la fuerza peso,
que: 1. El trabajo que realiza el peso del ascensor es negativo. II. El trabajo que
realiza el peso de la persona es negativo. III. Ambos trabajos son de distinto
signo. *

with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.

the rearrangement of particles in a physical change. hope this