Why will a change in velocity have a greater affect on KE than a change in mass?

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

Could someone . i have tried to solve myself but my calculation is off

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