Write a function: def solution (s) that, given a string s of letters "l" and "r", denoting the types of shoes in line (left or right), returns the maximum number of intervals such that each interval contains an equal number of left and right shoes. for example, given s "rlrrllrlrrll", the function should return 4, because s can be split into intervals: "rl, "rrll", "rl" and "rrll". note that the intervals do not have to be of the same size.

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa. s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)

The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false

What is the major difference between thermoplastics and thermosetting plastics from the polymerization structure point of view?