Gravitation and space Flashcards
What is newton’s universal law of gravitation
What is the radius of an orbit, what is it measured in
It is measured in meters.
It is the distance between the center of masses of the two planets
What is the equation for gravitational potential energy
The equation is -GMm/R
What is the velocity of an object in circular orbit
The velocity= SQUARE ROOT: (GM/R)
What is the velocity of an object escaping orbit
The velocity= SQUARE ROOT: (2GM/R)
What is the total mechanical energy of something in orbit
The total mechanical energy is less than zero
What is the total mechanical energy of something out of orbit
The total mechanical energy is equal to or more than zero
How do you calculate the local gravity of a planet
What are the variables
g= GM/R²
Where G is the gravitational constant, M is the mass of the planet in question, and R is the radius of the planet in question
What is big G
6.67 * 10⁻¹¹
