A60 vibration per second wave travels 30 meters in one second. what is its frequency and wave speed?

frequency: 60 Hz, speed: 30 m/s

Explanation:

- The frequency of the wave is equal to the number of complete vibrations per second. For the wave in the problem, we have 60 vibrations per second, so the frequency is

- The speed of a wave is given by

where d is the distance travelled and t the time taken. The wave in this problem travels a distance of d=30 m in a time of t=1 s, so the speed of the wave is

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.