`物理九年级 TOC o 1-1 h z u HYPERLINK l _Toc518933160 第一讲 温度和物态变化 PAGEREF _Toc518933160 h 1 HYPERLINK l _Toc518933161 第二讲 内能和热机 PAGEREF _Toc518933161 h 8 HYPERLINK l _Toc518933162 第三讲 电荷与电
第一讲 测量与运动强化综合演练1.D2.A3.D4.D5.D6.B7.D8.C9.D10.C11.C12.D13.(1)4.74.70(2)3214.0.07215.A16.76.00m温故知新1.A2.B3.秒 s 停表 1 39.8 99.84.C5.D6.A7.A8.B9.16 25.0 1.56第二讲 声音的产生与传播综合演练1.C2.A3.D4.C5.D6.D
第一讲 功功率综合演练1.【答案】B2.【答案】B3.【答案】D4.【答案】B5.【答案】D6.【答案】B7.【答案】C8.【答案】C B9.【答案】 >10.【答案】150 500 7511.【答案】 < 做匀速直线运动12.【答案】1 3.613.【答案】1600N2.4×10725ms14(※).【答案】B温故知新1.【答案】B2.【答案】C3.【答案】D【答案】B5.【答案】D6
PAGE MERGEFORMAT1物理八年级 TOC o 1-1 h z u HYPERLINK l _Toc518829048 第一讲 测量与运动强化 PAGEREF _Toc518829048 h 1 HYPERLINK l _Toc518829049 第二讲 速度的计算与应用 PAGEREF _Toc518829049 h 5 HYPERLINK
物理答案练习一 1C 2C 3C4D 5 (为y方向单位矢量) 6从O点指向缺口中心点. 7解:设杆的左端为坐标原点Ox轴沿直杆方向.带电直杆的电荷线密度为?=q L在x处取一电荷元PLddqx(Ld-x)dExOdq = ?dx = qdx L 它在P点的场强: 总场
练习一 1C 2C 3C4D 5 (为y方向单位矢量) 6从O点指向缺口中心点. 7解:设杆的左端为坐标原点Ox轴沿直杆方向.带电直杆的电荷线密度为?=q L在x处取一电荷元PLddqx(Ld-x)dExOdq = ?dx = qdx L 它在P点的场强: 总场强为
Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewords
练习册答案Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewordsPAGE Created with an evaluation copy of Aspose.Words.
Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewords
第一讲综合演练1.【答案】C2.【答案】C3.【答案】A4.【答案】D5.【答案】C6.【答案】D7.【答案】B8.【答案】B9.【答案】A10.【答案】D11.【答案】热传递4.2×10612.【答案】A13.【答案】(1)水的比热容比牛奶大(2)牛奶加个盖子(放在温水中)14.1.008×106J温故知新1.【答案】B2.【答案】B3.【答案】A4.【答案】C5.【答案】A6.【答案】D7.【
PAGE MERGEFORMAT1物理八年级 TOC o 1-1 h z u HYPERLINK l _Toc518835875 第一讲 测量与运动强化 PAGEREF _Toc518835875 h 1 HYPERLINK l _Toc518835876 第二讲 声音的产生与传播 PAGEREF _Toc518835876 h 5 HYPERLINK