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Unformatted text preview: Correct answer: 9 . 702 × 10 8 W. Explanation: P = W t = mg h t = ρ g h = (1 . 5 × 10 6 kg / s) (9 . 8 m / s 2 ) (66 m) = 9 . 702 × 10 8 W 003 10.0 points The fgure shows a potential energy curve For the interaction oF a two atom system. The horizontal line represents a bound state with constant K+U value. What is the minimum amount oF energy (in units oF eV) which must be supplied to cause the separation oF two atoms? (Caution: be careFul with the sign here.) 1. 0.9 2. 1.3 3.0.2 4.0.9 5.1.2 6. 0.2 correct Version 046/AACDC – QTest #8 – Antoniewicz – (56445) 2 Explanation: The minimum amount of energy needed is to bring the system from present state where E i = ( K + U ) i =. 2 eV to the Fnal state where E f = ( K + U ) f = 0. The energy principle is E fE i = W Δ E = W = E fE i = 0(. 2 eV) = 0 . 2 eV ....
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 Fall '08
 Turner
 Atom, Energy, Force, Potential Energy, Work, Version 046/AACDC

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