| 内容出处: | 《北洋周刊》 期刊 |
| 唯一号: | 020020020210013171 |
| 颗粒名称: | PHYSICS |
| 分类号: | G424.79 |
| 页数: | 1 |
| 摘要: | 1.State Newton's three laws of mation2.How long must a force of 100 dynes act on a mass of 20 grams to impart to it a velocity of 40 cms,per second?3.Explain the fermation of dew.4.A certain dry cell having an E. M, F.of 1. 5 volte delivered a current of 30 amperes through an ammeter having a negligible resistance. Find the internal resistance of the cell.5.Give the law of refraction of light rays. |
| 关键词: | 试题 入学考试 物理 |