Q. When a guitar string is sounded along with a 436 Hz tuning fork, a beat frequency of 5.00 Hz is heard. When the same string is sounded along with a 434 Hz tuning fork, the beat frequency is 7.00 Hz. What is the frequency of the string?
Q. A space station, in the form of a wheel 170 m in diameter, rotates to provide an "artificial gravity" of 9.4 m/s2 for persons who walk around on the inner wall of the outer rim. Find the rate of rotation of the wheel (in revolutions per minute) that will produce this effect.