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Re: [Phys-L] Dirigible Flight Question


On 2012, Nov 05, , at 11:44, John Clement wrote:


The NTN2 analysis is really a good way of brining home the idea that the
total mass is the mass of the balloon, helium, and the hanging mass.


There's also added mass from the air that "sticks" to a moving object.

This is an important air correction*** when using a simple pendulum to find g --



***Along with buoyancy and damping. It's the third in magnitude of 16 corrections.


Check out: The pendulum--Rich physics from a simple system

Am. J. Phys. 54 112 ff.


bc v. often uses "scare" quotes.