- #1

Fellowroot

- 92

- 0

## Homework Statement

## Homework Equations

## The Attempt at a Solution

I do not understand how in the solution they come up with the first equation that I boxed in with green.

I know that the total energy before is equal to the total energy after but I don't understand the logic of how they formed that first equation. It looks like KE+KE=E to me. What happened to the PE potential energy? And how can the KE of the 2 He atoms be equal to the energy released with the atoms?

I would only think that it would be (PE)

_{Beryllium}= 2(KE+PE)

_{Helium}+92.0keV

Also, I am two days into the class and my physics teacher has NOT solved a single problem. Has this happened to anyone else?

EDIT: OK, I think I got it? 92.0keV of energy is released which goes into the two He particles and somehow they are traveling at Vmax so there is no PE? That's my guess.

#### Attachments

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