Q. The men's world record for the shot put, 23.12m , was set by Randy Barnes of the United States on May 20, 1990.
If the shot was launched from 6.00 f above the ground at an initial angle of 42.0 degrees , what was its initial speed?
Q. A very a vibrating guitar string emits a tone simultaneously with one from a 535 hz turning fork. if a beat frequency of 4.5 hz results, what is the frequency of vibration of the string?