ideological and theoretical qualities and practical working ability, and strive to build a contingent of league cadres with positive work style and high quality
Hold a regular meting of the party secretary every fortnightly, arrange the work of the regiment, fedback the student information
Focus on training junior high school, junior high school secretary of the regiment branch to enable them to raise A firm political conviction, diligent and diligent learning spirit and practical and innovative work style
压强复习例题 1:在下面两个图中画出物块对下方的压力,并讨论压力大小的特点
例题 2:一块长方体橡皮,重为 0
3N,侧放于水平桌面上时,它与桌面的接触面积是 1×10-3m2
它对桌面的压强是 Pa
若沿竖直向下切去一块,则剩余部分对桌面的压力 (填“变大”或“变小”或“不变”)、压强 (填“变大”或“变小”或“不变”)、橡皮的密度 (填“变大”或“变小”或“不变”)
例题 3: 已知长方体 A、B 的密度之比为 2∶1,底面积之比为 l∶3,高度之比为 2∶3
将 B 放在水平地面上,A 叠放在 B 上面,如图甲所示,B 对地面的压强为 pB
若把 B 叠放在