An object is thrown upward from the edge of a tall building with a velocity of 10 m/s. where will the object be 3 s after it is thrown? take g=10ms^2
a. 15m above the top of the building
b. 30 m below the top of the building
c. 15 m below the top of the building
d. 30 m above the building

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.