American Journal of Physics and Applications

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Volume 11, Issue 2, March 2023

  • On the Variable Acceleration Motion of Falling Sphere in a Fluid Medium

    Xie Cuili, Zhang Yunong

    Issue: Volume 11, Issue 2, March 2023
    Pages: 31-39
    Received: 16 March 2023
    Accepted: 10 April 2023
    Published: 27 April 2023
    DOI: 10.11648/j.ajpa.20231102.11
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    Abstract: Falling motion of a sphere in the stationary medium is an important basic research and has a wide range of engineering application prospects. This paper studies the free fall motion of spheres in a stationary medium considering air drag. This paper calculates the acceleration, velocity and displacement of the falling process of the sphere by Excel,... Show More
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  • Thermal Annealing Effect on Optical and Electrical Properties of Zinc Selenide (ZnSe) Thin Films

    Esubalew Yehualaw Melaku, Tizazu Abza Abshiro, Wubamlak Nigussie

    Issue: Volume 11, Issue 2, March 2023
    Pages: 40-46
    Received: 2 May 2023
    Accepted: 2 June 2023
    Published: 29 June 2023
    DOI: 10.11648/j.ajpa.20231102.12
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    Abstract: The impact factor of ZnSe thin films in an aqueous solution of zinc acetate and hydrazine hydrate (HH) using the non-toxic complexing agent EDTA along with the films were annealed at 200, 300, and 400°C. This research aimed to employed XRD analysis, optical measurements, and electrical resistivity measurements to study the ZnSe thin films, respecti... Show More
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