In the stream, water waves bunched up as the water flowed by. As we
moved the disturbance up stream, the water bunched up even more. An
airplane can travel at the same speed as sound does, about 340 m/s.
When it does, is it logical that the airplane would experience a wave wall
barrier, ie, a sound barrier?
O yes
O No

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy