组号 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
次/15秒 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
摆长(米) | 1.15 | 0.88 | 0.69 | | 0.47 | 0.39 | 0.33 | 0.29 | 0.25 | 0.22 |
1.请你预测:表中第4组的摆长是多少请把选项填入表中。( )
A.0.85 | B.0.70 | C.0.56 | D.0.40 |
3.通过上图我发现:摆的快慢与________有关系。________,摆动越慢;________,摆动越快。
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