application of sound travelling through a solid
{"Image DocumentName": "Sound WavesA sound wave travels through a material as a pressure wave. Sound can travel through solids, liquids and gases.", "Image ImageDescription": "Velocity in km/s Materials. Copper. Glass. Steel. Sea water at 20 \u00b0C. Oil. Air at 20 \u00b0C. Hydrogen. Sound cannot travel through a vacuum. The speed of sound differs in different media. The table shows some of these values. In general, the denser the material, the faster sound travels through it. Next >", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}