1.Successive plus and minus sights taken on a downhill line oflevels are listed below. The values represent the horizontaldistances bewtween the instruments and either the plus or minussights. What error results from curvature and refraction?
50, 75, 75, 150, 25, 150, 30, 200
2.A small plot of land has measured dimesnions of 50 by 150 ft. the incertianity in the 50-ft is +/- 0.01 ft. Calculate the uncertianity eith which the 150-ft must be measred to ensure that the total uncertainty is not greater than 150%.
3.A resistance arrangement of 50 ? is desired. Tworesistances of 100 +/- 0.10? and two resistances of 25.0 +/- 0.02 ?are available. Which should be used, a series arrangement with the25-? resistors or a parallel arrangement with the 100-? resistors?Calculate the uncertainty for each arrangement