Figure (a) shows a molecule consisting of two atoms of masses m and M (with M >

Question

Figure (a) shows a molecule consisting of two atoms of masses m and M (with M > > m) and separation r. Figure (b) shows the potential energy U(r) of the molecule as a function of r. Condition gt requires numbers instead of "null" and "0" (a) Describe the motion of the atoms if the total mechanical energy E of the two-atom system is greater than zero (as is E_1). The atoms will move apart and permanently separate. The distance between the atoms will oscillate, but the atoms permanently separate. Condition gt requires numbers instead of "null" and "0" (b) Describe the motion of the atoms if the total mechanical energy E of the two-atom system is less than zero (as is E_2).

Explanation / Answer

Describe the motion of the atoms if the total mechanical energy E of the two-atom system is greater than zero (as is E1).

The atoms will move apart and permanently separate. -answer

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(b) Describe the motion of the atoms if the total mechanical energy E of the two-atom system is less than zero (as is E2).

The distance between the atoms will oscillate, but the atoms will not permanently separate. -----answer

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For E1 = 1 x 10^-19 J and r = 0.3 nm, find the potential energy of the system.

+2 x 10-19 J

+1 x 10-19 J

+0 J

-1 x 10^-19--------answer

J -2 x 10-19 J

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