Ahuman resources manager is hiring new it talent and is very interested in dot net talent. they give a standard exam to candidates for the open positions. the scores on the test are normally distributed with mean of 168 and a known standard deviation of 50. if they decide to interview those who score above the 70th percentile; what is the cut off score to be interviewed?

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?