The sound of a circular saw has a frequency of 100 Hz when being used in a garage where the air temperature is 20 °C. Calculate the wavelength of the sound waves produced by the circular saw.

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?