A.由于地球比木星离太阳近,所以太阳对地球的引力一定比对木星的引力大 |
B.行星绕太阳沿椭圆轨道运动时,在近日点所受引力大,在远日点所受引力小 |
C.由F=G可知,G=,由此可见G与F和r2的乘积成正比,与M和m的乘积成反比 |
D.行星绕太阳运动的椭圆轨道可近似看作圆形轨道,其向心力来源于太阳对行星的引力 |
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