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At what altitude can you see the entire Earth?

Posted on September 5, 2022 by Author

At what altitude can you see the entire Earth?

You would need to be a minimum of about 3000 miles above the surface to see the whole planet in a glance. That would be far enough for the Earth to fill about 60 degrees of your field of view, so you could see the whole thing comfortably without turning your head.

Why can’t astronauts see the Earth spinning?

Originally Answered: Why can’t we see earth spinning from space? The simple answer is that the earth is very large. So large that even though its surface is traveling 1,600 km/h at the equator, it still takes en entire day to complete one rotation.

What is the 9.8 M s2?

The magnitude of the acceleration due to gravity, denoted with a lower case g, is 9.8 m/s2. g = 9.8 m/s2. This means that every second an object is in free fall, gravity will cause the velocity of the object to increase 9.8 m/s. So, after one second, the object is traveling at 9.8 m/s.

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At what distance gravity ends?

Answer: Near the surface of the Earth (sea level), gravity decreases with height such that linear extrapolation would give zero gravity at a height of one half of the Earth’s radius – (9.8 m·s−2 per 3,200 km.)

How far away was the moon in 1969?

393,309 km
When the Apollo 11 crew landed on the Moon on July 20, 1969, they were 393,309 km away from home. In this activity students will use simple sports balls as scale models of Earth and the Moon.

How fast is the Earth spinning?

roughly 1,000 miles per hour
The earth rotates once every 23 hours, 56 minutes and 4.09053 seconds, called the sidereal period, and its circumference is roughly 40,075 kilometers. Thus, the surface of the earth at the equator moves at a speed of 460 meters per second–or roughly 1,000 miles per hour.

Who first saw Earth from space?

First full-disk image of Earth from space taken by a person, probably by astronaut William Anders. The Earthrise image is the first image of Earth from the Moon by a person (William Anders). First image of Earth taken by a person from the surface of the Moon.

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Does the earth’s curvature affect the altitude of an airplane?

As long as the aircraft is flown at a constant ambient pressure (hence constant altitude), it will be following the earth’s curvature (as the atmosphere is attached to the spherical earth and has same properties at same distance from the center, in an ideal case) as the altitude is measured from the surface, which is curved, and not a plane.

Why don’t we fall out of orbit around the Earth?

Because we have an atmosphere, that provides drag and prevents us from being in orbit until the atmosphere is much less dense. This is about 100 miles up — which sounds like a long distance, but remember that the Earth’s radius is 4000 miles, so you’re really just skimming the surface when you’re in low Earth orbit.

Does the Earth’s gravity decrease in space?

In fact, the decrease in gravity is only a small fraction. When astronauts experience ‘weightlessness’, its not because gravity has decreased, its because they are in free fall. That is, they are always falling toward the center of the earth, just like anything else falls toward the center of the earth.

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Is the Earth’s tilt always to the left?

Notice that the Earth’s tilt is always directed towards one place (in this model, it is towards the left. But if we changed our perspective by looking underneath or to the side, saying the tilt was “towards the left” becomes meaningless.

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