Question1
Air is blown throughout a circular and horizontal Venturi tube. The diameters of narrow and wider sections of the tube are given, and height h of the mercury column is measured to be 9.13 mm. What are air speeds in the wider and the narrower sections of the tube? Density of mercury is 13,600 kg/m3. (Assume the density of air is 1.29 kg/m3.)
Question2
Two Cars approach each other; both cars are moving westward, one at 80km/h, the other 1t 55 km/h. What is magnitude of the velocity of the first car relative to second car? What is direction of the resultant velocity? Following they pass how will their relative velocity modify?