Question

What is the "Threshold Energy"? (1 point) a The energy that is released by an exogenic nuclear reaction b The energy of a nucleon after it passes the threshold of a nuclei in beta decay c The maximum number of alpha particles that can be released by a common nuclear reaction d The kinetic energy nuclei must possess before it can start an endogenic reaction

A new set of dinosaur bones are uncovered by scientists in Arizona. The dinosaurs all died out over 60 million years ago. Would radiocarbon dating be an effective way to determine the exact age of the new bones? Why or why not? (2 points)

Describe and define nuclear fusion and nuclear fission (4 points)

Answer 1

What is the "Threshold Energy"?

It is actually the minimum energy required for a reaction to start.

I will go with option (D)

____________________________________

A new set of dinosaur bones are uncovered by scientists in Arizona. The dinosaurs all died out over 60 million years ago. Would radiocarbon dating be an effective way to determine the exact age of the new bones? Why or why not

No, radiocarbon dating would not  be an effective way to determine the exact age of the new bones because carbon dating is used for objects which are younger than or equal to 50,000 year. But It's been a long since Dinosaurs died.

so, we cannot use carbon dating

______________________________________

Nuclear fusion - Fusion occurs when two atoms combine together to form a heavier atom just like when two hydrogen atoms fuse to form one helium atom. These processes create a lot of energy. This process powers the sun.

Nuclear fission - Fission is just opposite. In this, a neutron collides with a large atom and splits it into two smaller atoms. This process is used in Nuclear power reactors to produce electricity.