Wednesday

July 23, 2014

July 23, 2014

Posted by **Mandy** on Thursday, October 11, 2007 at 8:54pm.

a. Rewrite the equation using the root symbol.

b. Neptune takes about 5.2 x 10^9 seconds to go around the sun. What is the average radius of Neptune's ath around the sun?

c. The time it takes a planet to go around the sun is called a year. Compare Neptune's year with Earth's year. Which planet has the longer year? How much longer is it.?

- Math -
**tchrwill**, Friday, October 12, 2007 at 3:02pmb. Neptune takes about 5.2 x 10^9 seconds to go around the sun. What is the average radius of Neptune's ath around the sun?

c. The time it takes a planet to go around the sun is called a year. Compare Neptune's year with Earth's year. Which planet has the longer year? How much longer is it.?

b-Since the planet;s period is defined by P = 2Pisqrt(r^3/µ), where r == the planets orbital radius and µ = the gravitational constant of the sun, solving for r yields r = (µP^2/4Pi^2)^(1/3).

Thus,

r = [4.68772x10^21(5.2x10^9)/4Pi^2]^1/3 = 2,794,059,276 miles.

c-Substitute the Earth's mean radius, 92,960,242 miles, and Neptunes mean radius, just calculated, into the expression for period given above, to get the comparison of orbital periods.

- robkget gphfidcj -
**robkget gphfidcj**, Sunday, December 28, 2008 at 8:34amonifxa zxfyevgdc gqlbv vrqftkej egisobanj zulfmv agfwcy

**Related Questions**

physics help 3!! ** - Based on the following data about planet X (which orbits ...

Math - The period of revolution of a planet around the sun is the time it takes ...

math - Find the distance that the earth travels in seven days in its path around...

Math - PreCalc (12th Grade) - If the distance covered by an object in time t is ...

Physica - A 21.0-kg satellite has a circular orbit with a period of 2.37 h and a...

college algebra - Kepler’s third law. According to Kepler’s third law of ...

math - If a rock is thrown upward on the planet Mercury with a velocity of 11 m/...

math - If a rock is thrown upward on the planet Mercury with a velocity of 11 m/...

Pre-Calculus - The surface ares S (in square meters) of a hot air ballon is ...

REALLY EASY - Which of the following explanations correctly describes the reason...