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When the Moon reaches equal periods of orbital and rotational periods it's known as rotation?
Wiki User
∙ 10y ago
When a satelite's rotational period is the same as its orbital period, like our moon, the satelite is tidally locked to the body being orbited. Such a rotation rate is known as a synchronous rotation. The effect is that the same side of the satelite always faces the orbited body.
Wiki User
∙ 10y ago
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How did winds help early explorers sail around the globe?
more solar radiation reaches the equator rises moves torward the poles creating air currents are pushed to the west or east by earth's rotation
What is the orbital path of an object around another?
An orbital path is the place at which when a space craft reaches a free fall (just beyond the Earth's atmosphere) and then adds a thrust to propel the space craft. This causes the space craft to orbit the Earth. While the space craft is falling back into the Earth's atmosphere the thrust is causing the space craft to remain at a stationary altitude in relation to the Earth, but not to objects beyond Earth, because the Earth is round.
How many days long is the moon's orbit around earth?
The moon's orbital period is roughly 27.32 days. This is the true orbital (sidereal) period of the moon around the earth. The moon's synodic period is roughly 29.53 days. This is the period that is related to the regular pattern of phases of the moon. If the above answers your question, that is good. For a little basic information on how the sidereal and synodic periods differ, read on. It is easier to explain using the earth orbiting the sun as an example, but the same concept applies to the moon. If you observe the earth's movement from far to the north, you will see the earth spinning on its axis. The earth will be orbiting (revolving) counter-clockwise, and also spinning (rotating) counter-clockwise. Just look down from the stars and imagine [or sketch] that you will start observing the earth's spin when the earth is about at the location of '5' on a clock. You can see that the sun is to the left, and higher than the earth in your mental image. Imagine an arrow painted on the earth pointing straight out (exactly straight up, in your mental image) from the earth, in earth's orbital plane, and then when the earth completes exactly one full rotation, the arrow will again be pointing exactly straight up, and you will stop the action; imagine that the earth is now roughly at '2' on a clock. It is ok to exaggerate the orbit in this mental experiment in order to clarify the point. When you stop the action, you realize that not only has the earth been rotating, but it has continued along its orbit around the sun. You notice that the sun is still to the left, but it is now below the earth in your mental image. But the arrow is pointing straight up, indicating that exactly one rotation has taken place. This is the sidereal period; a true rotation relative to the stars. Now, you realize that the spot on the earth that was right under the sun when you started isn't nearly under the sun now that you stopped. The sun is still to the left of the earth, but it is now below the earth in your mental image! When the earth was at '5', a line connecting the earth's center to the center of the sun would slope upwardto the left. At '2', the line would slope downward to the left. The people right under the sun when you started observing don't think that an entire rotation has happened yet, because the sun is not directly overhead! So the earth has to rotate a little longer than one full rotation in order to 'get' the sun to where it 'should' be. This is the synodic period-- the period of rotation based on the earth's position relative to the sun. The very same thing happens with the movement of the moon. The sidereal, or true rotation is a little shorter than the synodic period, because the moon has to orbit (and rotate) a little longer in order to be in the same position relative to the earth and sun. When the moon reaches that point where it is in the same place relative to the earth and sun, you observe exactly the same moon phase as when you started.
How can sun - pots help to determine the period of rotation of the sun?
Because sun spots appear to move across the surface due to the sun's rotation. Observe the sun by projecting its image onto a piece of paper through binoculars or a small telescope. (Never look directly at the sun of course with or without binoculars or telescope unless you want to immediately go permanently blind!) Observe over a few weeks day by day and note the time when a sun spot just appears at the edge of the sun. Track this spot day by day and note the day when it reaches the other side and disappears. It will therefore have appeared to travel over half the sun's surface (the half we can see) because of the sun's rotation. If you double this figure (to take into account the apparent journey across the surface of the sun that we cannot see) then this figure will be the time for the sun's rotation.
What layer of the sun's atmosphere reaches farthest into space?
The layer of the sun's atmosphere that reaches farthest into space is called the Corona.
What is a rotational line of symmetry?
It is the axis of symmetry which is a line such that a object that is rotated at right angles to it becomes congruent to its original state before the angle of rotation reaches 360 degrees.
What is the difference distance wise between low orbital spaceflight and sub orbital spaceflight?
Sub-orbital space flight reaches space while low orbital spaceflight attain sufficient velocity to go to space.
How much sunlight reaches a location at a particular time is determined by earths shape and what?
the earths shape and its rotation
Can you consider earth as having a uniform velocity?
No. Earth's rotational velocity is slowing. Do you mean the velocity of Earth's revolution around the sun? The earth speeds up in its orbit until it reaches perihelion, and then slows until it reaches aphelion.
What are Day and night are caused by?
The rotation of the earth.
What is bottom dead center?
it's the point in the rotation of a internal combustion engine just before the piston reaches the bottom of it's down stroke
Can or cannot a radar track down a tornado?
Doppler radar can, but with some limits. Doppler radar can detect rotation of a tornado, as well as the larger rotation that may produce one, but it cannot tell if the rotation reaches the ground. Additionally, radar may fail to detect weak tornadoes and tornadoes that are very far away.
What is before bottom dead center?
it's the point in the rotation of a internal combustion engine just before the piston reaches the bottom of it's down stroke
What is the time required for a planet to complete one turn on its axis called?
It can be called a couple of different things because, believe it or not, "one turn on its axis" can mean two different things. Without getting into a long explanation, here are the basics. You can do more study if you want more details. If you are considering the rotation (turning on the axis) of earth, and you are talking about the earth rotating from one solar noon to the next solar noon, (the moment when the sun reaches its highest altitude), then you are talking about the synodic period of rotation. You are defining a rotation according to earth's relationship to the sun. The earth has to turn more than 360 degrees in order to complete a synodic rotation. In brief, this is because earth is orbiting the sun at the same time that it is rotating on its axis. Over a year these rotations take, on average, 24 hours each. The periods of synodic rotations, therefore, are called days. If you are considering the absolute rotation of earth on its axis, the way the rotation would be seen from the distant stars, then you are talking about earth's sidereal period of rotation, its absolute rotation independent of the sun. This rotation takes roughly 23 hours 56 minutes and 4.1 seconds to complete.
How does Earth's rotation influence weather?
The rotation and tilt of the earth are determinants for how much sun or heat reaches different portions of the earth every day and year around. During the summer season in the northern hemisphere they get more sunlight year around. The southern hemisphere experiences the opposite. The rotation is also responsible for diurnal, or night ad day changes, effecting on and off shore flow of heat and moisture.
When you rotate a jar filled with water and a floating object on it object doesn't moves?
That's because - the rotational motion of the jar is 'absorbed' by the water. Therefore the movement of the jar never reaches the floating object and, since there's no forces acting on it, it remains stationary.
How did winds help early explorers sail around the globe?
more solar radiation reaches the equator rises moves torward the poles creating air currents are pushed to the west or east by earth's rotation
