A girl, standing 150m in front of a tall building, fires a shot using a starting pistol. A boy, standing 350 m from the girl
, hears two bangs 1s apart.
June 200
my
PATI
gid
boy
47
150 m
350 m
From this information, what is the speed of sound in air?
A 300 m/s
B 350 m/s
D 650 m/s
C 500 m/s

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.