(1)将凹形桥模拟器静置于托盘秤上,如图甲所示,托盘秤的示数为1.10 kg。
(2)将小钢球静置于凹形桥模拟器最低点时,托盘秤的示数如图乙所示,则该小钢球的重力为
(3)将小钢球从凹形桥模拟器某一位置释放,小钢球经 过最低点后滑向另一侧,此过程中托盘秤的最大示数为m;多次 从同一位置释放小钢球,记录各次的m值如表所示:
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同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2