Physical Science

posted by .

I need some help. I have tried working this problem and can't get it.

What is the mass of the Sun, in kilograms, based on the revolution period and distance from Venus?

  • Physical Science -

    You can use Newton's form of Kepler's third law to compute the mass of the sun, using the distance and period of any planet. You can find the formula at:

    http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/970609f.html

    The formula given there uses the velocity of the planet (in m/s), which is the orbit circumference divided by the period.

    You should get Msun = abiout 2*10^30 kg

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Third Side, Reply to Jen

    Hi Jen, I've seen the drawing. My site is down at the moment. Draw a line from Venus (either of the two positions) to the line Earth-Sun at right angles. Let's call the distance Earth Venus d. Then you have a right angle triangle with …
  2. Math

    The period of revolution of a planet around the sun is the time it takes for the planet to complete one orbit of the sun. The period, P years, is give by Kepler's third law P^2=D^3, where D is the average distance from the sun in astronomical …
  3. Math Help- Gr12

    The relation between the # of time in days, D, it takes for a planet to revolve around the Sun is related to the planer's average distance from the Sun, k, in millions of kilometres is defined by log D= 3/2logk-0.7 . How much longer …
  4. Math/Physics

    1. A typical virus is a packet of protein and DNA or RNA and can be spherical in shape. The influenza A virus is a spherical virus that has a diameter of 85nm. If the volume of saliva coughed on to you by a friend with the flu is .010cm^3 …
  5. Math

    the time x (in days), that it takes a planet to revolve around the sun can be approximated by the equation x=0.407√(d^3),where d is the mean distance of the planet from the sun in millions of miles. It takes Venus approximately …
  6. Physical Science

    I need some help. I have tried working this problem and can't get it. A scale model of the solar system is being constructed where 40cm of the model represents 0.5 AU of actual distance. What is the model dimension, in meters, for …
  7. Physical Science

    I need some help. I have tried working this problem and can't get it. A class is building a scale model of the planets based on the model of Mercury having a radius 0.5cm. What is the diameter of Saturn for this model?
  8. Math Ms. Sue please help!!!

    Okay I am really stuck on this question Tip: ^ = exponent Example: 6x10^7 7 is exponent Question: Venus is the second planet from the sun. Earth is the third planet from the sun. The distance from Venus to the sun is 6.72x10^7 and …
  9. Astronomy

    Venus is 0.72 AU from the Sun and Neptune is 30.06 AU from the Sun. Both have similar orbital eccentricities, 0.7 and 1.0 respectively. Predict how long it will take Venus to make one revolution around the sun compared to Neptune. …
  10. Physics

    Two equal-mass stars orbit their centre of mass. The distance between the stars (measured from the centre of mass of each) is 1 AU. What is the period of revolution in years?

More Similar Questions