If a 20-MeV Neutron Released in a Fission Reaction Loses Half of Half

question 68

Multiple Choice

If a 2.0-MeV neutron released in a fission reaction loses half of its energy in each moderator collision,how many collisions are needed to reduce its energy to (1/25) eV?

• A) 6
• B) 18
• C) 26
• D) 30
• E) 4

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Definitions:

Sinoatrial (SA) Node

The heart's natural pacemaker, responsible for initiating the electrical impulses that determine heart rate.

Cardiac Output

The volume of blood the heart pumps per minute, which is crucial for maintaining blood flow to the body.

Ventricular Contractions

Heartbeats initiated by electrical impulses causing the ventricles to contract, pumping blood out of the heart.

Cardiac Contractile Strength

Cardiac Contractile Strength refers to the force generated by the heart muscle during contraction, crucial for pumping blood effectively throughout the body.