La presión atmosférica es 1.01*10 elevado a la 5 Pa (pascales) y equivale a 1 atm (atmósfera). Se desea lanzar un globo aerostático, tal que al ascender 200m, disminuye en un 5% el valor de la presión atmosférica. Si asciende 1km, ¿Cual es el valor de la presión atmosférica en pascales y atmósferas?

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

The mini-refrigerator fire was most likely caused by what type of wiring?

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.