Q1\ A ball made of INOX AISI 365 steel with density of 8.52 gr/cm3 was used to determine the viscosity of oil with specific gravity of 0.91. In the viscometer, the ball traveled 19 cm in 2.2 seconds. If the diameter of the ball is 2.95 mm, what is the viscosity of the oil in pa.s ? assume that water density is 1000 kg/m³.

The data set of the diameters of the metal cylinders manufactured an automatic machine has sample size of n=28, mean of x= 49.94 mm and std. of S = 0.15 mm. Expected diameter of metal cylinder is µ = 50.00 mm. Can we be 95% confident that machine calibrated properly? Solution: v=n-1=27 ; ta/2=? P[X for 2 S VR μ+ (a Sl Vi -1-a =0.95

If you inflate your car tires at a garage near Lake Arrowhead (elevation: 5107 ft) and the average pressure reading was 40.0 psi, what would be the average pressure reading when you arrive at Cal Poly Pomona (elevation: 732 ft) two hours later? Assume that the atmospheric pressure linearly decreases as elevation increases at -1.0 psi per 1000 ft. O 41.0 psi O 44.4 psi O 35.6 psi O 39.0 psi

Question on water resources engineering FLUID MECHANICS