Answered: On a radar, the time interval between…

On a radar, the time interval between the sent and the received radio pulse reflected from plane, is 15 microseconds. How far is the plane? The speed of the radio pulse is 300,000 km/s.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter39: Relativity

Section: Chapter Questions

Problem 59PQ

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Concept explainers

Debye Theory of Solids

In solid-state physics, debye theory is used to estimate the phonons contributing to the specific heat capacity in a solid. It explains that the specific heat is a consequence of the vibrations of the atomic lattice of the solid, which is in contrast to the Einstein model. In the Einstein model, solids are treated as independent, non-interacting quantum harmonic oscillators. This model clearly explains the low-temperature dependence of the heat capacity, which is proportional to T3. This is known as Debye T3 law.

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On a radar, the time interval between the sent and the received radio pulse reflected from plane, is 15 microseconds. How far is the plane? The speed of the radio pulse is 300,000 km/s.

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