The spring constant of kpred = 9.7 N/mm is predicted after carefully measuring or estimating the...
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The spring constant of kpred = 9.7 N/mm is predicted after carefully measuring or estimating the outside coil diameter, wire diameter, count of active coils and shear modulus. Use the method of the partial derivative and estimate the uncertainty in the predicted spring constant, Akpred, in N/mm if the %-uncertainty in the measurements of D, d, n and G are: ± 2%, +2.7 %, 17% and ±7%, respectively. Report the result in N/mm and to three decimal places. The spring constant of kpred = 9.7 N/mm is predicted after carefully measuring or estimating the outside coil diameter, wire diameter, count of active coils and shear modulus. Use the method of the partial derivative and estimate the uncertainty in the predicted spring constant, Akpred, in N/mm if the %-uncertainty in the measurements of D, d, n and G are: ± 2%, +2.7 %, 17% and ±7%, respectively. Report the result in N/mm and to three decimal places.
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The formula for the spring constant kpred can be expressed as kpred 16G D3d4 n where G is the shear ... View the full answer
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