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the mean fee path of air molecules at 0 C and 1 ATM is about 2*10^-5 cm.
a) what is the effective molecular diameter of an air molecule?
b) at what pressure (at 0 C) would the mean fee path be equal to the effective molecular diameter?
Find the eight ball's speed after the colision. Parallel rays of green mercury light with a wavelength of 546 nm pass through a slit with a width of 0.437 mm. What is distance from the central maximum to the first minimum on a screen 1.75 mm away f..
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