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When a cannon with a longer barrel is fired, the force of expanding gases acts on the cannonball for a longer distance. What effect does this have on the velocity of the
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120 mm short cannons with hydropneumatic brakes, siege artillery, photo from L'Illustration, No 3102, Stock Photo, Picture And Rights Managed Image. Pic. DAE-BA059196 | agefotostock
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Short Barreled Fat Bronze Cannon From Napoleontic Era Stock Photo, Picture And Royalty Free Image. Image 675267.
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