A solid metal cube of sides 10cm, is heated from 10 celsius to 60 celsius. If the linear expansivity of the metal is 1.2×10^-5k calculate the increase in its volume

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