longitudinal-wave
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| With the help of a diagram show how longitudinal waves, like sound waves travel in air |
|
1 | 3181 | July 17, 2019 |
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| With the help of a diagram show how longitudinal waves, like sound waves travel in air |
|
1 | 3181 | July 17, 2019 |