CERiMRE https://jurnal.unej.ac.id/index.php/CERiMRE Physics Department, Faculty of Mathematics and Natural Sciences The University of Jember VOLUME 1, ISSUE 1 NOVEMBER 2018 TABLE OF CONTENTS Volume 1, Issue 1 November – 2018 Page Cover i Table of Contents ii Editorial Board iii Density of Liquid Lead as Function of Temperature and Pressure Based on the Molecular Dynamics Method Muhammad Abdul Bashar Imanullah, Artoto Arkundato and Endhah Purwandari 1-6 Characterization of Carbon Derived from Water Hyacinth as a Renewable Energy Sources Rani Kusumaningtyas, Wenny Maulina and Supriyadi 7-11 Analysis of Tensile Strenght and Shear Modulus of GRE Pipe using Ansys Dita Puspita, Siti Lailatul Arofah, Elok Hidayah, Lutfi Rohman and Ratna Dewi Syarifah 12-16 Comparative Analytic of Viscoelasticity Carbon, Glass, and Graphite Fiber Composite Using Maxwell Model Ro’sil Khohar, Umi Sa’adah and Dewi Azzahra Puspita 17-23 Built in Potential of a-Si:H Based p-i-n Solar Cell at Different Energy Gap of Intrinsic Layer Rahayu Setyo Yuniarsih, Endhah Purwandari, Misto Misto, Edi Supriyanto, Supriyadi 24-29