There are two tuning forks struck at the same time. one tuning fork is tuned to a frequency note of 500 hz. the other is tuned to a frequency of 487 hz. how many beats will occur in 2 seconds?

Asailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s2 for 4s. after the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s.assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? answer using a coordinate system where rightward is positive.