Using the declarations const int arraysize = 9; and double arr[arraysize] = {7.8, 6.4, 4.9, 11.2, 6}; elements will be initialized to zero (the array could be local or global - answer is still the same).

a. 0
b. 9
c. 4
d. 5
e. none of these are correct

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?