The velocity v at which flow in a pipe will switch from laminar to turbulent depends on the diameter d of the pipe as well as the density rho and the dynamic viscosity µ of the fluid.
(a) find a dimensionally reduced form of v.
(b) suppose the pipe has a diameter d=100 and for water (where rho=1 and μ=10-2) it is found that v=0.25 . what is v for olive oil (where rho=1 and μ=1)? the units here are in cgs.

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges