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Why does g.p.s. need 4 satellites?
GPS needs signals from at least 4 satellites to accurately calculate a 3D position on Earth. By receiving signals from multiple satellites, the GPS device can triangulate its position using the known positions of the satellites. This allows for highly accurate location determination.
How does the US protect its satellites?
The US protects its satellites through a combination of tactics, including encryption to secure communication signals, maneuvering satellites to avoid collisions with space debris, and monitoring for potential threats from other countries or entities. Additionally, the US has protocols in place for tracking and responding to any unauthorized or potentially hostile actions towards its satellites.
How many satellites needed to get a position?
Typically, three satellites are needed to determine a 2D position (latitude and longitude), while four satellites are needed to determine a 3D position (latitude, longitude, and altitude) using GPS technology.
What are the 5 types of artificial satellites?
The five major types of artificial satellites are: research, communications, weather, navigational, and applications. Please see the related links.
What do you call satellites that orbit various planets?
Those are called planetary satellites or natural satellites. Each planet has its own set of natural satellites that orbit around it.
Why do boats need to be streamlined?
to be able to get through water as easily as possible, the same way that planes and fast cars have to be streamlined.
In the movie Independence Day why do the aliens use and need Earth's satellites?
The aliens need to use earth's satellites so that they can coordinate their invasion efforts.
Why objects in space do not need streamlined shape?
Because there are no frictional forces.
Why do objects need to be streamlined?
Objects need to be streamlined to reduce air resistance and drag when moving through a fluid, such as air or water. This design reduces the energy required for movement and increases speed and efficiency.
How do you use the word streamlined in a sentence?
The new software is very streamlined.We need to make sure it is all streamlined and perfect.
Why do airplanes need to be streamlined?
Airplanes are streamlined in order to reduce drag (coefficient of friction). This allows for less resistance, less fuel consumption, and greater speed.
Why do you need astronauts?
so we can keep our satellites running
How many satellites do you need to have a full GPS signal?
A minimum of 4 satellites is needed to obtain a full GPS signal. These satellites are used to triangulate your position accurately on Earth.
Do GPS satellites need to be recalibrated for time corrections?
No, GPS satellites do not need to be recalibrated for time corrections. The atomic clocks on the satellites are highly accurate and stable, and any necessary adjustments can be made remotely from the control segment on the ground.
Why isn't an elephant streamlined?
Firstly they are not predators so have no need of speed or stealth to hunt food; they are herbivorous. Secondly, while they can move quickly when they are frightened or attack they are heavy and cannot sustain long periods at high speed, for this reason they have no need to be streamlined.
Do you need a susbscrption to use a gps?
No. GPS Satellites are free to receive.
Do you need to be connected to the internet to use the GPS?
No as GPS is obtained from satellites.
