What effect does the size of the box have on the ground state energy of a particle trapped in that box?
A)
If the box is smaller, the energy is greater.
B)
If the box is larger, the energy is greater.
C)
The size of the box has no influence on the energy.
D)
Not enough information is given to answer this question.
A
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Telescopes operating at this wavelength must be cooled to observe faint astronomical objects
A) radio B) extreme infrared C) visible D) X-ray E) gamma-ray
Telescopes being planned for the study of the earliest stages in galactic lives will be optimized for observations in
A) visible light. B) infrared light. C) radio waves. D) X-rays.
A deuteron is accelerated from rest through a 10-kV potential difference and then moves perpendicularly to a uniform magnetic field with B = 1.6 T. What is the radius of the resulting circular path? (deuteron: m = 3.3 × 10^?27 kg, q = 1.6 × 10^?19 C)
a. 19 mm b. 13 mm c. 20 mm d. 10 mm e. 9.0 mm
Two wires are made out of the same metal, but one wire is twice as long as the other wire. Which wire will have the greatest elastic modulus?
A) the shorter wire B) the longer wire C) It will be the same for both wires.