An oil is being pumped inside a 45.0-cm-diameter pipe at a Reynolds number of 1300. The oil density is 855 kg/m3 and the viscosity is 2.1 × 10−1 Pa · s. (i) What is the velocity in the pipe? (ii) It is desired to maintain the same Reynolds number of 1300 and the same velocity as in part (i) using a second fluid with a density of 955 kg/m3 and a viscosity of 1.5 × 10−3 Pa · s. What pipe diameter should be used?

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.