If the interaction of a particle with its environment restricts the particle to a finite region of space, the result is the quantization of ____ of the particle
a. the momentum
b. the energy
c. the velocity
d. all of the above properties
e. only properties (a) and (b)
d
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The allowed shapes for orbits under the force of gravity are ___________________________.
What will be an ideal response?
Which statement below regarding the first law of thermodynamics is most correct?
A. A system can do work externally only if its internal energy decreases. B. The internal energy of a system that interacts with its environment must change. C. No matter what other interactions take place, the internal energy must change if a system undergoes a heat transfer. D. The only changes that can occur in the internal energy of a system are those produced by non-mechanical forces. E. The internal energy of a system cannot change if the heat transferred to the system is equal to the work done by the system.
Light is incident normally from air onto a liquid film that is on a glass plate. The liquid film is 164 nm thick, and the liquid has index of refraction 1.60
The glass has index of refraction n = 1.50. Calculate the longest visible wavelength (as measured in air) of the light for which there will be totally destructive interference between the rays reflected from the top and bottom surfaces of the film. (Assume that the visible spectrum lies between 400 and 700 nm.)
An ideal, reversible heat pump is taking heat from the outside air at -10.0°C and discharging it into the house at 18.0°C. What is the coefficient of performance of this heat pump?
A) 10.4 B) 9.44 C) 0.644 D) 0.533 E) 0.0962