The deflection H of a metal structure can be calculated using the formula where I, , D
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The deflection H of a metal structure can be calculated using the formula
where I, ρ, D and L are the moment of inertia, density, diameter and length respectively, and g is the acceleration due to gravity. If the value of H is to remain unaltered when I increases by 0.1%, ρ by 0.2% and D decreases by 0.3%, what percentage change in L is required?
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