Question

For a standing wave, what can be said about all of the particles oscillating between two successive nodes ?

1)They have the same amplitude but different frequencies.

2)They have the same amplitude and frequency

3) They have the same frequency but different amplitudes

4) They have different amplitudes and frequencies​

Answer 1

Answer:

the purpose of ball bearing is to reduce rotational position and support radial and axial load as one of the bearing races rotate it causes the balls to rotate as well because the balls a rolling they have a much lower coefficient of friction then if two flat surface was laid against each other