# astronomy

posted by .

Why could the mass of Venus not be deduced from Earth-based observations in the same manner as the masses of most other planets?

## Similar Questions

1. ### PHYSICS

THE MASS OF VENUS IS 81.5% OF THE EARTH AND ITS RADIUS IS 94.9% THAT OF THE EARTH. A)COMPUTE THE ACCELERATION DUE TO GRAVITY ON THE SURFACE OF VENUS FROM THESE DATA.B)IF A ROCK WEIGHS 75.0N ON EARTH,WHAT WOULD IT WEIGH ON THE SURFACE …
2. ### astronomy 101

Given that the angular size of Venus is 53ŒŒ'' when the planet is 47000000kmkm from Earth, calculate Venus's diameter (in kilometers).
3. ### Physics

(II) Every few hundred years most of the planets line up on the same side of the Sun. Calculate the total force on the Earth due to Venus, Jupiter, and Saturn, assuming all four planets are in a line, Fig. 5–44. The masses are mV …
4. ### Astronomy

Why will detecting Earth-sized planets be much more difficult than finding Jupiter-sized planets around other stars?
5. ### Astronomy

Why is the greenhouse effect on Earth not as drastic as on Venus?
6. ### Astronomy

Why is the greenhouse effect on Earth not as drastic as on Venus?
7. ### Science

Can someone please check my answers? I would greatly appreciate it. Thanks! 1. Which of the following inner planets has virtually no atmosphere?
8. ### AP Physics

At their closest approach, Venus and Earth are 4.2x10^10m apart. The mass of Venus is 4.87x10^24kg, the mass of Earth is 5.97x10^24kg, and G=6.67x10^-11Nm2/kg2. What is the force exerted by Venus on Earth at that point?
9. ### english

:Select the correct excerpt. Which excerpt from Robert Stawell Ball's Great Astronomers is best supported by this diagram?
10. ### Physics

The radius of the planet venus is nearly the same of that of the eart but it's mass is only 80% that of the earth. If an object weighs We on the earth (a) what does it weigh on venus (b) calculate the value of g in venus

More Similar Questions