A chimney at sea level is 2 m in diameter and 40 m high. When subjected to a storm with winds of 50 mi/h, what is the bending moment at the base due to the wind?

Consider a steel sphere (SG = 7.85) of diameter 2 cm,dropped from rest in the water at 208C. Assume a constant dragcoefficient CD = 0.47. Accounting for the sphere’s hydrodynamicmass, estimate (a) its terminal velocity and (b) thetime to reach 99 percent of terminal velocity. Comparethese to the results when hydrodynamic mass is neglected,Vterminal ≈ 1.95 m/s and t99% ≈ 0.605 s, and discuss.

A smooth square billboard 5 × 5 m² is place on a roof of a tall building. In orienting the billboard, the engineer is considering the wind direction for two possible cases: (a) the wind is parallel to the board (b) the wind is perpendicular to the board. Assuming maximum wind velocity of 10 m/s, what will be the force acting on the billboard in each of the cases considered? (Use u = 1.85 x 10-5 kg/m – s; p= 1.225 kg/m³; Recr = 500,000) %3D

A wheel tractor has a 200HP engine.if it is operating at an altitute of 1000m above sea level, at an average temperature of 25 degree celcius, and at an average speed of 12km/hr. Calculate the available rimpull of this tractor. Take rimpull efficiency as 85%