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# Quiz4 - P7A Quiz 4 DL Sec Rubric Codes Name(last(first...

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P7A Quiz 4 DL Sec Name (last) (first) |___|___|___ Rubric Codes : 9 Student ID: ____________________ first 3 letters last name I certify by my signature that I will abide by the code of academic conduct of the University of California. Signature E tot = Q+W; E B = H m; E th = C T; PE g = mgh; PE m-s = 1 / 2 kx 2 ; KE = 1 / 2 mv 2 ; 1 J = 1 kg m 2 /s 2 PLEASE USE THE FRONT OF QUIZ ONLY Winter 2007 Substances A and B have pair-wise potentials acting between atoms as shown in the graph. Minimum PE for substance A is PE min = - 0.55 x 10 -20 J. The mass of the A atom is m A = 3 x 10 -27 kg. Minimum PE for substance B is PE min = - 0.25 x 10 -20 J. The mass of the B atom is m B = 4 x 10 -27 kg. Note: The vertical scale of the graph is in units of 10 -20 J. The horizontal scale is in units of 10 -10 m. 1) Four atoms of substance B form a cluster where each atom has a bond with all of the others (Remember: This means that there are six bonds ). This cluster has a temperature very close to 0 K ( i.e. atoms are virtually motionless). What is the minimum

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Quiz4 - P7A Quiz 4 DL Sec Rubric Codes Name(last(first...

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