How can you increase the efficiency of a wind turbine when converting wind energy to electrical energy?

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

Which type of basaltic lava flow has a fairly smooth

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?