For the following potential distribution, use the gradient equation to find E. V = r2sin Φ(V)

Select one:
a. -2.ρ.sinΦ.aρ - ρ.cosΦ.aΦ
b. None of these
c. -2.sinΦ.aρ - ρ.cosΦ.aΦ
d. -2.ρ.sinΦ.aρ - cosΦ.aΦ
fastt plz im running out of time

What precautions should you take to prevent injuries when dealing with heavy loads?

Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.

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?