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Problem 1: A calibration equation for a temperature sensor calibrated for 100 ≤ T ≤ 500K is give as R = 1.25 - 0.03T + 5 * 10-4T2 + 1 * 10-6T3 (with R in Ω and T in K). Determine the sensitivity of the temperature sensor at T = 300 K.
Problem 2: What type of strain gauge should be used for an application where the axes of the principal stresses are unknown?
Problem 3: For pipe flow, the Reynolds number for the flow is given as Re = ρVD/µ. In an experiment using water (ρ = 1000kg/m3), the following results were measured:
D = 0.5 ± 0.05mm, V = 10 ± 0.05 m/s, µ = 0.001 ± 5 * 10-6 Pa.s.
a. Calculate the value of the Reynolds number (Re) and its uncertainty.
b. Which of the three measured results contributed the most to the uncertainty of Re?
c. If one could only reduce the uncertainty of one of the three measured results, which one should be reduced in order to minimize the uncertainty of Re?
above a peninsula of land. the length of the box is 25 km, its width is 80 km, and a radiation inversion restricts mixing to 25 m. Wind is blowing clean air into the long dimention of the box at 0.8 m/s.
Base course aggregate has a target dry density of 119.7 lb/cu ft in place. It will be laid down and compacted in a rectangular street repair area of 2000 ft*48ft*6in.
A bankrupt chemical firm has been taken over by new management. Onthe property they found a 25,000 m3 brine pondcontaining 20,000 mg/L of salt.
Two box culverts each is 0.61 m by 0.61 m and has n = 0.013, Ke = 0.05, Cd = 0.85, L = 30 m, So = 0.7%, and HW = 1.5 m. a. What is the design flow capacity for free outlet condition b. What is the design flow capacity for tailwater of TW = 1 m
You are furnished with three sizes of particles. One is gravel with porosity of 0.32, the second is a coarse grained sand with porosity of 0.37, and the third is a fine grained sand with porosity of 0.23.
In 2003 at Holloman Air Force Base in New Mexico, test engineers set a world record by moving 192 lb payload at 6,453 miles per hour in a rocket sled. The rocket sled track, built in 1954, is 15.44 km in length.
An isolated system contains an incompressible substance with heat capacity C = kT, where k is a constant. The system is initially divided in two parts, with 1/3 of the mass at T1 and 2/3 of the mass at T2.
The drinking water standard for tetrachloroethylene is 0.005 mg/L. Using EPA exposure factors for residential consumption, what lifetime risk would this pose What concentration would correspond to a risk of 10-6
In the first part of the essay discuss, "Do you believe that psychologists serving as trial consultants provide a valuable and worthwhile service in the selection of juries?"Why or why not?
The tower crane is used to hoist the 2-Mg load upward at constant velocity. The 1.5-Mg jib BD , 0.5-Mg jib BC , and 6-Mg counterweight C have centers of mass at G1 , G2 , and G3 , respectively.
Two remediation options are being considered for a contaminated land area formerly used for industrial operations. Option 1 involves removing all of the contaminated soil over a two-year period at a cost of 2.2$ million per year
q1. briefly explain the purpose of the international space station and list the name of all space agencies involved in
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