A hot-air balloon has a volume of 440 × 10^3 ^3. Calculate the buoyant force that the surrounding cold air exerts on the balloon? Given that the density of the surrounding air is 2.58 kg/^3.

A hot air balloon has a volume of 2.2 times 10^3 m^3. What is the buoyant force that the surrounding cold air exerts on the balloon? Assume that the density of the surrounding air is 1.29 kg/m^3 (a) 2.79 times 10^2 N (b) 2.79 times 10^3 N (c) 2.79 times 10^4 N (d) 2.79 times 10^5 N When water flows vertically downward out of the cross sectional area of the stream of water gradually narrows This phenomenon can be explained .

what are the options.

explanation:

talk back to him about the sport and show him your expertise or leave the room