Articles — Physics

A dual energy radiography method using basis decomposition was developed, the process to do it is shown and it is compared against an alternate more direct method of analyzing the data using the logarithm of the original data, concluding that this second method does work but it is not better than basis decomposition.

Experimentalphysik 6: Festkörperphysik

Guía de presentación de trabajos

Experimentalphysik 6: Festkörperphysik

Se calculó la eficiencia real y de Carnot de un Aparato de Eficiencia Térmica (Model TD-8564).

Trabalho experimental de determinação da Constante de Planck e do comportamento de Corpo Negro para um filamento de Tungstênio a partir da determinação de temperatura por resistência e por radiação eletromagnética.

Objetivos: Estudo do movimento oscilatório, oscilações livres não amortecidas e amortecidas, e oscilações forçadas e amortecidas.

The impact crater of a small metal ball of 63.7 grams (0.0637kg) is dropped from 8 different heights, ranging from 0.20m to 0.90m was observed. A mean was measured for the craters diameter. Using the equation E=mg$\Delta$h given that we have m, and g is a constant of 9.81 we can find the kinetic energy of the ball on impact. The relationship between crater diameter, D, and impact energy, E, is given by D=kE$^n$ where K is constant and n is found by the gradient of the graph and is also constant. This can be modified to give $\log D = n\log E + \log k$.

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