Posted by **kelsey** on Friday, October 31, 2008 at 12:03am.

Based on the following data about planet X (which orbits around the Sun):

Planet X's distance from Sun = 3.6*1012 m

Planet X's radius = 2*106 m

Planet X's mass = 8.2*1022 kg

a.) Find gx, the size of the acceleration due to gravity on the surface of Planet X. m/s2

b.) What is the weight of a 10 kg mass on the surface of Planet X? N

(How does this compare to its weight on Earth?)

c.) How long would it take for a ball dropped from a height of 8 m to hit the ground? s

(How does this compare to the time it would take on Earth?)

d.) At 3 of Planet X's radii above the planet's surface, what is gx? m/s2

e.) Find the orbital speed of Planet X around the Sun. m/s

f.) How long is a year on Planet X? Express your answers in both seconds and Earth years:

s

Earth years

## Answer this Question

## Related Questions

- science - if all of the following imaginary planets were the same distance from...
- Astronomy - Orbital speed is the speed with which a planet moves around the sun...
- Physics - A planet with mass 7 x 1024 kg orbits a sun with a period of 1 Earth's...
- math - If planet I is 31.8 million miles from the sun than planet II, then ...
- Math - The average radius r in meters of a planet's path around the sun is given...
- Physics Find mass and radius of planet. - While visiting Planet Physics, you ...
- Physics - 1. Planet X orbits the sun with a mean orbital radius that is 6200 ...
- Physica - A 21.0-kg satellite has a circular orbit with a period of 2.37 h and a...
- physics - A 17.0-kg satellite has a circular orbit with a period of 2.31 h and a...
- Physics-Gravity - A 17.0-kg satellite has a circular orbit with a period of 2.31...

More Related Questions