Which factor is not needed when calculating the velocity of a satellite orbiting a planet?(1 point)
Responses
the orbital radius of the satellite
the orbital radius of the satellite
the mass of the satellite
the mass of the satellite
the universal gravitational constant
the universal gravitational constant
the mass of the planet
the mass of the satellite
Let G be the universal gravitational constant and mp be the mass of the planet a satellite is orbiting. Which equation could be used to find the velocity of the satellite if it is placed in a geostationary orbit?(1 point)
Responses
v=Gmp(7,324 km)−−−−−−−√v=Gmp(7,324 km)−−−−−−−√
v=Gmp(15,522 km)−−−−−−−−√v=Gmp(15,522 km)−−−−−−−−√
v=Gmp(42,164 km)−−−−−−−−√v=Gmp(42,164 km)−−−−−−−−√
v=Gmp(48,115 km)−−−−−−−−√
v=Gmp(42,164 km)−−−−−−−−√
Let G be the universal gravitational constant and mp be the mass of the planet a satellite is orbiting. Which equation could be used to find the velocity of the satellite if it is placed in a low Earth orbit?(1 point)
Responses
v=1(200 km)Gmp−−−−√v=1(200 km)Gmp−−−−√
v=1(7,000 km)Gmp−−−−√v=1(7,000 km)Gmp−−−−√
v=Gmp(7,000 km)−−−−−−−√v=Gmp(7,000 km)−−−−−−−√
v=Gmp(200 km)−−−−−−√
v=Gmp(200 km)−−−−−−√
The factor that is not needed when calculating the velocity of a satellite orbiting a planet is the mass of the satellite.
The answer is: the mass of the satellite.
To calculate the velocity of a satellite orbiting a planet, you need to consider three factors:
1. The orbital radius of the satellite: This is the distance between the center of the planet and the satellite. The orbital radius affects the velocity because the farther the satellite is from the planet, the slower it moves.
2. The mass of the planet: This is the mass of the planet around which the satellite is orbiting. The mass of the planet also affects the velocity because a more massive planet exerts a stronger gravitational force on the satellite, resulting in a higher velocity.
3. The universal gravitational constant: This is a constant value denoted by G, which represents the strength of the gravitational force between two objects. It is a fundamental constant in physics and is necessary for calculating the gravitational force acting on the satellite.
The mass of the satellite itself is not needed to calculate the velocity of the satellite. The mass of the satellite does affect the gravitational force acting on it, but it cancels out when calculating the velocity. This is because, according to Newton's second law of motion, the acceleration of an object due to a gravitational force is independent of the mass of the object.
So, in summary, the factor that is not needed to calculate the velocity of a satellite orbiting a planet is the mass of the satellite.