A wind turbine at a particular location experiences a steady wind at 15 mph for a period of 2500 hours each year

Civil Engineering Oct 13, 2020

A wind turbine at a particular location experiences a steady wind at 15 mph for a period of 2500 hours each year. The wind turbine's blades are 80 feet in diameter. If the air density is taken as 0.078 lbm/ft3 answer the following question
What is the power output of this wind turbine in Btu/s to three significant digits ?
What is the energy per year produced by this wind turbine in MBtu/year to three signifcant digits ?