Four pairs of objects have the masses as described below, along with the distances between
them. Which pair of objects would have the greatest gravitational force between them?*

Mass of 1Kg and 1kg, 2 meters apart
Mass of 1Kg and 2Kg, 1 meters apart
Mass of drukg and 1 Kg, 12 meters apart
Mass of 2 Kg and 1kg, 12 meter apart

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)

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.