(iii) an air bubble at the bottom of a lake 43.5 m deep has a volume of 1.00 cm. if the temperature at the bot- tom is 5.5°c and at the top 21.0°c, what is the volume of the bubble just before it reaches the surface? 45. (11) a cubic box of volume 3.9 × 10-2 m3 is file with air at atmospheric pressure at 20°c. the box closed and heated to 180°c. what is the net force on each side of the box?