Which of the following best describes a noncontact force

Awind turbine is initially spinning at a constant angular speed. as the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.173 rad/s2. after making 2870 revolutions, its angular speed is 132 rad/s. (a) what is the initial angular velocity of the turbine? (b) how much time elapses while the turbine is speeding up?

By what primary heat transfer mechanism does the sun warm the earth?

Newtons view of arrangement of the universe. don't copy from anywhere.