河南省实验中学2023-2024学年高三上学期期中考试 物理答案
1河南省实验中学2023--2024学年上期期中试卷物理参考答案一.选择题题号123456789101112答案DDDACBACACDBCCDBC二.实验题13.2.40.580.60纸带受到摩擦力(空气阻力、滑轮粗糙有质量)14.D小于三.计算题15.【详解】(1)在地球表面的物体,万有引力等于重力(1分)而地球的质量为(1分)联立可得地球的密度为(1分)(2)“墨子号”绕地球做匀速圆周运动,万有引力提供向心力,有(2分)结合可解得高度为(1分)16.【详解】(1)舰载机达到的最大速度时,受力平衡,水平方向有(2分)竖直方向有2(2分)解得(1分)(2)根据动量定理有(2分)解得(1分)17...
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