Answers>Physics>Scottish Highers>Article

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?

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

Answered by Rory C. • Physics tutor

1297 Views

Related Physics Scottish Highers answers

All answers ▸

An internet shopping company is planning to use drones to deliver packages.During a test the drone is hovering at a constant height above the ground.The mass of the drone is 5·50 kg. The mass of the package is 1·25 kg. See questions below

A golf ball is hit at an angle θ=45° to the horizontal with an initial speed v0. A vertical wall of height h=10m lies a distance d=20m away. Determine the minimum initial speed v0 required for the ball to clear the wall. Air resistance is negligible.

In a lab a hydrogen spectral line is observed to have a wavelength of 656nm. This line is observed in a distance galaxy to have a wavelength of 661nm, what is the recessional velocity of the galaxy?

A photon of wavelength 656.3nm is emitted in the Balmer series of a Hydrogen emission lamp. (a). Show that the frequency of the photon is 4.57*10^14 Hz. (b).Use the Planck-Einstein relationship to calculate the energy of the photon.

Popular Requests

Maths tutor Chemistry tutor Physics tutor Biology tutor English tutor GCSE tutors A level tutors IB tutors Physics & Maths tutors Chemistry & Maths tutors GCSE Maths tutors

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy

CLICK CEOP

Internet Safety

Payment Security

Cyber

Essentials