Question: A system of two objects has Ktot Ktot = 7 JJ and Uint Uint = - 1 JJ . Part A How much work is

A system of two objects has KtotKtot =7 JJ and UintUint =-1 JJ.
Part A
How much work is done by interaction forces?
Express your answer in joules.
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
WintWint =
nothing
JJ
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Part B
How much work is done by external forces?

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