An organ pipe open at both ends has two successive harmonics with frequencies of 210 hz and 240 hz. What is the length of the pipe? the speed of sound is 344 m/s in air.

Boiling water is an example of physical change. true or false

Ajet plane flying 600 m/s experience an acceleration of 4.0 g when pulling out of a circular dive. what is the radius of curvature part of the path in which the plane is flying? a) 7100 m b) 650 m c) 9200 m d) 1200 m

Agust of wind pushes a beach ball with a force of 9 newtons.the ball rolls 10 meters in 3 seconds. what is the power of the wind?