What will the speed of a sound wave change if the temperature of the medium rises

Abar magnet cut in half will form a total ofpoles. a)fourb)eightc)two

When barack obama was running for president, at a campaign stop he tried to bowl, something he isn't very good at. the media loved it because he threw a gutter ball while they were all watching. this is an example of:

The receptor cells that convert light energy into neural signals are called