By the types of sails that you have. or it could be the wind type or the wind's speed
Still air means that there is no wind, therefore, no wind-speed.
yes by the amount of wind that is in that area
the wind speed,wind duration and the distance the wave is traveling
Generally it will reduce both speed and range.
The bigger affect on wind speed is air pressure.
Three factors that affect waves are wind speed, wind duration, and the distance over which the wind blows (referred to as wind fetch). These factors influence the size, speed, and direction of waves.
Wind speed, fetch (distance over which the wind blows), and duration of time the wind blows are key factors that affect the development of wind waves. These factors determine the height, length, and speed of the waves generated by the wind.
Yes For exactly the same boat the lighter will be faster.
drag goes up 8times with the doubling of speed.
yes
yes
heat,wind and lunar position