Example: stock market
Search results with tag "Gcse physics waves amp sounds"
GCSE PHYSICS WAVES & SOUNDS - Chemactive.com
chemactive.comGCSE PHYSICS WAVES & SOUNDS High Demand Questions QUESTIONSHEET 3 (a) A man claps his hands on a hilltop. He hears the echo 0.7 s later. (i) If the speed of sound is 340 m/s, how far away was the surface from which the sound rebounded?