# Elastic Collision in Nuclear Reactors

Not what you're looking for?

Canadian nuclear reactors use heavy water moderators in which elastic collisions occur between the neutrons and deuterons of mass 2.0 u. What is the speed of a neutron, expressed as a fraction of its original speed, after a head-on, elastic collision with a deuteron which is initially at rest? What is its kinetic energy, expressed as a fraction of its original kinetic energy? How many such successive collisions will reduce the speed of a neutron to 1/59,000 of its original value?

##### Purchase this Solution

##### Solution Summary

This solution provides three answers with six steps of calculations. The law of conservation of momentum and Newton's experimental law are used.

##### Solution Preview

mass of neutron m1 = 1 unit = 1*1.67*10^(-27) kg

mass of deutron m2 = 2 unit

initital velocity of neutron u1 = vo

initital velocity of deutron u2 = 0

By momentum law,

m1*u1 + m2*u2 = m1*v1 + m2*v2

1*vo + 0 = 1*v1 + ...

###### Education

- BEng, Allahabad University, India
- MSc , Pune University, India
- PhD (IP), Pune University, India

###### Recent Feedback

- " In question 2, you incorrectly add in the $3.00 dividend that was just paid to determine the value of the stock price using the dividend discount model. In question 4 response, it should have also been recognized that dividend discount models are not useful if any of the parameters used in the model are inaccurate. "
- "feedback: fail to recognize the operating cash flow will not begin until the end of year 3."
- "Answer was correct"
- "Great thanks"
- "Perfect solution..thank you"

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

##### Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

##### Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

##### Basic Physics

This quiz will test your knowledge about basic Physics.

##### Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.