Question 2 Radioactive dating involves determining which of the following?

Half-life decay
Index fossils
Depth of layers
Geologic time

Question 3

What process uses rock layers and index fossils to determine an object's estimated age?

Radioactive dating
Law of superposition
Relative dating
Geologic time

The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?