The sound wave produced by striking the middle C key on a piano has a frequency of 440 Hz. The sound is traveling at 282 m/s.

What is the wavelength?

Acar moves a distance of 50.0 km west, followed by a distance of 64.9 km north what was the magnitude of the displacement of the car, in units of kilometers?

What is the magnitude of the resultant vector round your answer to the nearest tenth

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?