'n Veerkrag pyltjiegeweer is onuitgerek en het 'n veerkonstante van 12,0 N/m. Die veer word met 8,00 cm saamgepers en 'n pyl van 5,00 g word in die geweer geplaas. Die spoed van die pyl as dit vanuit die geweer geskiet word, is...? A spring powered dart gun is unstretched and has a spring constant of 12,0 N/m. The spring is compressed by 8,00 cm and a 5,00 g dart is placed in the gun. The speed of the dart when it is shot from the gun is..? Select one: O a 2,54 m/s O b. 3,92 m/s Oc. 4,24 m/s Od 5,02 m/s 1,52 m/s 2

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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.