Part F

Substituting your answer from Part E gives the equation

$($E$2$E$1)(2$mc$2)=$p$22$c$2$p$21$c$2($E$2$E$1)(2$mc$2)=$p$22$c$2$p$12$c$2.$

Divide both sides by $2$mc$22$mc$2$ to find an expression for E$2$E$1$E$2$E$1.$

Express your answer in terms of p$1$p$1,$ p$2$p$2,$ mm$,$ and cc$.$

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

E$2$E$1$E$2$E$1=$

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