Determine the bed slope of a trapezoidal canal having discharge 70 m3/sec bed width of sm, uniform flow depth 3 mm and side slope 2H: Zv. Tako manning's cofficient of 0.015​

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length

Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?