The resonance frequency of a closed air column is known to depend on pressure ,density of air ,and the length of the air column. How are these quantities related ​

On your wedding day your lover gives you a gold ring of mass 3.67 g. 48 years later its mass is 3.44 g. on the average how many atoms were abrated from the ring during each second of your marriage? the atomic mass of gold is 197 u. don't enter units