An exoplanet of mass 1.36x10^26 kg is orbiting a star of mass 3.2x10^31 kg at a distance of 1 AU. What is the magnitude of the gravitational force between the two?

Scottish Highers

We use Newtons equation for gravitational force. F=GMm/r².1 AU is the mean distance at which the Earth orbits the Sun, taken to be: 1.49x10¹¹ m.Substituting in the numbers we find the magnitude of the force to be: 1.3075x10²⁵ Newtons

Related Scottish Highers Questions

Explain the difference between elastic and inelastic collisions.
A launcher 1m tall fires tennis balls with a velocity of 15m/s at an angle of 20 degrees from horizontal. Neglecting air resistance, calculate the maximum height, time of flight and distance traveled by the ball.
If a footballer kicks a ball straight down the pitch at 6 ms-1 at an angle θ of 30° above the horizontal, what is the maximum height reached by the ball?
Two cables hold a mass of 100kg, joining in the middle of the top of the mass. Two helicopters lift a cable each and hover so that the height of the mass is constant. Each cable makes an angle of 57° with the normal. Find the tension in each cable.
A tall 2 meter tall basketball player shoots for the net that stands 3 meters from the ground. If he throws he ball from head height at an angle of 60 degrees and the ball travels at 10 meters per second, how far away is the hoop?

Levels