m 3 kg, 7,- < 10,-4, 15 m/s my4 kg, 7 -<-14, 4,-5> m/s my-4 kg, 7 < -26, 36, 26 > m/s

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A: 1.  Given data: Vectors: A=6i^+9j^ and B=2i^+5j^ 2. Given data: Mass of crate, m=14.4 kg First…

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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.