Mm |
(4R)2 |
| ||
4R |
Mm |
R2 |
| ||
R |
v1 |
vm |
1 |
2 |
Mm |
(4R)2 |
4π2 | ||
|
Mm |
R2 |
|
| ||
(2.5R)3 |
| ||
(4R)3 |
|
T2 |
2 |
|
|
|
A.水星和金星绕太阳运动的周期之比 |
B.水星和金星的密度之比 |
C.水星和金星到太阳中心的距离之比 |
D.水星和金星绕太阳运动的向心加速度大小之比 |
GM0m0 |
r0 |
A.Wf=-
| B.Wf=-
| ||||||||||||
C.Wf=-
| D.Wf=-
|
A.两球不可以看成质点,无法计算 | ||
B.G
| ||
C.G
| ||
D.G
|
© 2017-2019 超级试练试题库,All Rights Reserved.