Wind turbines have large rotating arms. These arms rotate with the wind, and the turbine uses this motion to generate electricity. What happens to the wind when it is powering a turbine?

A. The wind is not affected by the turbine.
B. The wind speeds up.
C. The wind slows down.
D. The wind may, or may not, be affected by the turbine.

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.