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Brass Ball
Posted by AdminFire on February 28th, 2005
What is the radius of the brass ball?
One end of a wire connected to a roof, and a solid brass ball is tied to the widest low. The tension in the cable is 100 N.
Assuming that the bronze has a density of 8.4g/cm ^ 3 Weight of brass ball = 10 kg = 10,000 g Volume = mass density, 10000/8.4 = 1190.5 cm ^ 3 volume of balls (assuming it's a sphere) 4/3?r = 1190.5 ?r ³ = ³ = 892.5 [divide by 4 / 3] r ³ = 284.1 [divide by pi] R = 6.6cm [square root] Hope helped!
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