Two strings are adjusted to vibrate at exactly 310 hz . then the tension in one string is increased slightly. afterward, three beats per second are heard when the strings vibrate at the same time. par

Two strings are adjusted to vibrate at exactly 310 hz . then the tension in one string is increased slightly. afterward, three beats per second are heard when the strings vibrate at the same time. part a what is the new frequency of the string that was tightened?