In the hypothetical atomic interaction shown in figure C9.13, assume that the atoms initially have zero radial velocity at a separation of 0.25 nm. If the atoms are jostled slightly so that the system gains a slight amount of energy, what happens to the atoms’ separation afterward?
A. It oscillates within a small region about r = 0.25 nm.
B. It oscillates between r = 0.25 nm and r = 0.05 nm.
C. It directly increases toward infinity.
D. It eventually increases toward infinity, maybe directly but maybe after one detour to smaller separations.
E. So me other behavior (specify).
D. It eventually increases toward infinity, maybe directly but maybe after one detour to smaller separations.
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Which of the following statements is true of an electron?
A) Binding energy is large when a large amount of energy is needed to pull an electron away from an atom. B) The energy that holds an electron to an atom is referred to as its radiation energy. C) The presence of electrons allows an atom to have unlimited amounts of binding energy. D) It is a low-mass atomic particle that carries a positive charge when combined with a proton.
An ideal air-filled parallel-plate capacitor has round plates and carries a fixed amount of equal but opposite charge on its plates
All the geometric parameters of the capacitor (plate diameter and plate separation) are now DOUBLED. If the original energy density between the plates was u0, what is the new energy density? A) 16u0 B) 4u0 C) u0 D) u0/4 E) u0/16
Suppose you find a meteorite made almost entirely of metal. According to current science, which of the following statements must be true?
A) Your meteorite is a fragment from the core of a large asteroid that shattered in a collision. B) Radiometric dating will show the age of your meteorite to date to the formation of our solar system. C) Your meteorite was blasted off the surface of Mars by an impact. D) Your meteorite is a fragment of an object from the Kuiper belt.
The centripetal acceleration of an automobile in uniform circular motion on a flat circular track is supplied by ______________
Fill in the blank(s) with correct word