Due Wednesday May 4 Reminder Please fill out the course

Last updated: 4/27/2023

Due Wednesday May 4 Reminder Please fill out the course evaluation if you didn t during class Wednesday May 4 1 Rocks brought back from the Moon were estimated to have 8 of the 40K Potassium that it initially had It turns into 40 Ar How long ago were these rocks formed This indicates how long it has been since the Moon was hot and molten 2 a After 10 000 years what fraction of a sample of 40K is left over b After 1 000 years what fraction of a sample of 40K is left over c After 10 000 years what fraction of a sample of 14C is left over d After 1 000 years what fraction of a sample of 14C is left over