Alead shot of diameter 3 mm is fired upward into sti air at 300 k over open water calculate: a) the drag force that the shot experiences as it leaves the gun barrel at a velocity of 150 m/s b) the terminal velocity that it attains when it falls through the still air c) the terminal velocity that it attains when it falls through the still water density of lead 11,340 kg/m2, rho (air) 1.1 77 kgm , η (air) 1.85x10° pas, rho (water) 1000 kg/m', η (water) 8.57x10" pas.

Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c.what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?