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September 22, 2014

Homework Help: Physics

Posted by Ben on Sunday, March 7, 2010 at 10:04pm.

A neutron collides elastically with a helium nucleus (at rest initially) whose mass is four times that of the neutron. The helium nucleus is observed to rebound at an angle θ'2 = 44 from the neutron's initial direction. The neutron's initial speed is 7.0 105 m/s. Determine the angle at which the neutron rebounds, θ'1, measured from its initial direction.

What is the speed of the neutron after the collision?

What is the speed of the helium nucleus after the collision?

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