When air enters a compressor at pressure and leaves at pressure , the intermediate pressure is given by . Assume that = 10.1 ± 0.3 MPa and = 20.1 ± 0.4 MPa.

a. Estimate , and find the uncertainty in the estimate.



b. Which would provide a greater reduction in the uncertainty in : reducing the uncertainty in to 0.2 MPa or reducing the uncertainty in to 0.2 MPa?


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