Does the speed of an air craft  affect the rotational speed of the Earth?
446986
Yes, it does, but by a very negligible amount.\n\nDue to the law of conservation of angular momentum, the Earth has some over all value for its angular momentum (and for that matter, so does the solar system and our entire galaxy, ... as well).  As thr plane is flying around the Earth, it has some angular momentum too, different from its original value just sitting still on the surface.  In order for the overall angular momentum of the Earth to remain constant, the Earth's rotation is effected ever so slightly.\nHowever, the effect is so small, it is not even noticible when we are talking about objects as miniscule as an air plane compared to the Earth.\nAlso, since, over all, on average, for every plane flying one way, there is another plane flying the other way (or when the plane returns), so the effects are all canceled out.\n\nIt is the same principle at work is your on a merry-go-round and you move closer in to the center or farther away (or in this case, around while spinning on the merry go round), angular momentum needs to be conserved, it is the law.
1102478
It varies between 30.287 km/s and 29.291 km/s with 29.783 km/s being the average\n\nThe reason for the varying speeds is that Earth's orbit is not perfectly circular.  At some times, it closer to the sun, causing the orbital velocity to become faster.  As it moves further away from the sun, the velocity gradually decreases to the minimum before beginning acceleration again.
40541
It can! Actually Earth's rotation is slowing by about 2.2 seconds every 100,000 years. The massive earthquake that recently caused the disastrous tsunamis around the Indian Ocean slowed Earth's rotation by a few micro-seconds. Don't worry, though, long before Earth stops spinning, our Sun will have left its current stable condition and engulfed the planet--in about 4.5-billion years.
1164152
The earth rotates about its axis.  Obviously at the poles, there is no speed to the rotation at all.  At the equator, the circumference of the earth is about 25,000 miles and it rotates once per 24 hours, so the speed would have to be 25,000/24 = 1041.67 mph.  Depending on where you are between the equator and the pole, you'll get a speed of between 0 and 1041.67 mph.
989766
hey this is a very good question. \nthe circumference divided by 24 (i.e. hours) = angular velocity travelled in one hour. \nif the rotation changes suddenly or  it stops rotating suddenly then due to the inertia that every moving object carries will suddenly travel in the direction of rotation at exactly the angular speed of the earth. so ocean water will move all over the earth and the plates beneath the earth will shift causing severe earthquakes and the volcano will erupt from the gaps due the internal pressure. so all the movable objects will shoot. these objects will move in the direction perpendicular to the centre of the globe in the direction of the motion respectively. there after stopping , there would be more gravitational force exerting on the objects cause the earth while in motion , objects have centrifugal force that is why the weight is different at the time when earth stops rotating and due to the absence of the centrifugal force weight would be more. there day will be 6 months and the night would also be 6 months longer like the north/south pole.
799364
Ask your son to turn around in a circle once per day.  That is the rate  of the earth spinning.   One rotation per day.  Did he get dizzy?  \n\nSpinning is angular speed or angular frequency( the rate it turns through an angle), not the speed, tangent to the circumference of the earth.\n\nThe earth spinning is improperly linked to 1000 mph.  The earth spins one time per day.  The surface velocity is 1000mph at the outer surface of the earth, but that is just like going straight at 1000mph.\n\nThe surface speed of the earth is undetectably with out a frame of reference.  Just as speeding in a car...without looking out the window, you don't know if you are moving that fast.  We only detect a change, acceleration.  The earth spins so slowly, we don't detect the angular frequency as being dizzy.
788842
Um, it doesn't. If you take a long exposure or video from an asynchronous satellite you will see the rotation (it will be faster or slower than the true speed due to the movement of the satellite.\n\nIf you use a geostationary satellite you won't see any movement.
325003
You would have to overcome the spinning motion of the atmosphere.  See my answer to your "if the world stopped spinning" question.  So yes, if you could reach about 900 mph going west, you would be counteracting the spinning of the Earth and eventually be somewhere else "without moving".  Now about the Earth's orbit around the sun...
559917
First, the speed of the rotation of the earth relative to where you are on the earth.  At the equator, the circumference of the Earth is roughly 24000 miles.  This is convenient, because the Earth rotates about its axis once every 24 hours.  Therefore an hour = 1000 miles of equatorial rotation.  Understand the fastest moving part of the Earth is the equator, since an object on the equator travels 24000 around the earth's Axis every day.  If you are closer to the poles, you are on a "thinner" slice of the earth, where the circumferene may only be 20000miles.  In that case you are moving at 833 miles per hour.  The fact that the Earth moves faster at the Equator than at the poles is responsible for the Coriolus Effect which is really important to people who study meteorology, or who wonder why their toilets get all swirly when flushed.  Why we don't "feel" the rotation is, simply put, because we are rotating exactly the same way as the earth.  In physics, this is called a "frame of reference".  For most intents and purposes, the earth is at "rest" relative to us.  As a human, you make up part of the mass of the earth, and you spin with it in a constant rotation.  It's only when we look to things that are not directly connected to the earth that we really see the effects of it's rotation (ie Tides of water, moments of clouds and weather, etc. . .)  Hope that helps.
756076
One would think that while standing on a spinning Earth, you would feel lots of different angles of acceleration.  But this is not the case.  The fact that the Earth spins results in another force called the centrifugal force, which points in the direction away from the earth's axis of rotation.  It is greatest the farther you are away from the rotation axis (i.e. at the equator), and non-existent at the north and south poles.  \nHowever, even at the equator, this force is very tiny (only 0.3% of the \ngravitational force) - so you don't notice it at all.  The reason it is so small is simply that the Earth doesn't rotate fast enough.
401449
The earth's rotation does slow down, but not\ndue to the reason you are stating... gravitational\npull of the moon and sun causes more mass to move\ncloser to the surface over time. When an ice-skater\ntwirls around, if the pull in their arms to their\nsides they spin faster, when they push their arms\nout they slow down - in the same way, the earth\nis slowing down, but only by about 1 second per\nseveral years, which is adjusted for by adding\na leap-second from time to time to the atomic \nclock.\n\nThe earthquake in Sumatra on 26-Dec-04 resulted\nin a massive chunk of the ocean floor collapsing\ndown (closer to the earth's center), which caused\na measurable speeding up of the earth's rotation.\nThis was, however, not sufficient to compensate\nfor the otherwise slowing down trend, and only\nmade the adding of a leap-second get delayed...
67625
The rotation of the Earth can be altered by a variety of things - though not in a big way. Changes in how mass is distributed will change the Earth's rotation speed because of conservation of angular momentum. This is exactly the same thing that causes a spinning ice skater to speed up when she/he pulles there hands in.\n\nFor example stronger east-to-west winds in the Northern Hemisphere during January-February increase the angular momentum of the atmosphere, and, because it is somewhat coupled, reduces the angular momentum of the Earth, and therefore the rotation speed slows down. Not that is detectable without a lot of equipment. (This only happens in the North, because the South is mostly ocean.)\n\nSimilar to this is the slight change in rotation speed because of El Nino. In this case it is an ocean current instead of air currents (prevailing winds).\n\nIn a more complicated fashion the relationship between the orbit of the Moon and the Earth's rotation is leading to the Moon getting slightly farther away (by about 3 centimeters every year) and the day becoming longer (by about a millisecond/day every a century).\n\nAnd also the earthquake that caused the recent tsunami also altered the distribution of mass in the Earth and affected the rotation rate. The length of a day was measured to change by +0.000152 seconds on the day of the tsunami, although not all of this change is necessary due to the earthquake.\n\nBack to your question, the 1 second "leap second" is not due to the tsunami. It is related to the more gradual changes (like the braking force from the Moon) which have slightly changed the length of a day from exactly 86,400 seconds in 1820 to about 86,400.002 seconds today. (And no, they didn't measure it in 1820, all these calculations were done after the invention of standard atomic clocks.)\n\nAfter a while that little extra 0.002 seconds/day adds up. After one year it amounts to 0.73 seconds. That stil isn't alot, but it is more than enough to throw off a lot of computers and equipments which require an exact time. \n\nWhenever the rotation of the Earth causes us to be off from the baseline 1820-era day by more than 0.9 seconds then a leap second is added to the year. So this happens fairly often.
1113520
Earth is rotating at a speed of about 1100 miles per hour. If our planet suddenly stopped rotating, the atmosphere would still be in motion at that speed. The atmosphere would be moving so fast it would literally sweep the land masses clear of anything not anchored to bedrock, this would mean rocks, soil, trees, buildings, people and animals. All would be swept up into the atmosphere.
676639
If you are asking is there a "centrifugal" force due to the Earth's rotation, the answer is yes, but it is hardly noticeable.  It might counter the Earth's gravitational pull by a half percent.\n\nAlso, I'm not sure how F = mw^2 is a valid equation due to dimensional analysis.  Force is kgm/s^2.  Omega is angular displacement per unit time, which can be radians per second.  That would mean mw^2 would be kg/s^2, because radians isn't really a unit anyway.  \n\nIt would have to be: F = mrw^2.
228929
Yes.  \n(1) The centripetal force due to rotation is greatest at the equator and vanishes near the poles.  Things literally weight more at the poles than the equator.  Rockets carrying satellites are typically launched from equatorial regions because it takes less fuel.\n\n(2) The coriolis (sp?) effect results from Earth's rotation.  Something moving in a straight line has the Earth turn out from underneath it.  This makes hurricaines spin in their respective directions in the northern or southern hemisphere.  Also, a "good" pendulum will seem to rotate it's swing over 24 hours.  It's going the same way - the Earth turns beneath it.
20798
The Earth spins from west to east at about 900 mph. Looking from above the Earth's North Pole, the Earth rotates counter-clockwise around the Sun.
324486
Add v2/R.\nv=speed of rotation at the suface of the earth.\n(it depends on the geographic altitude fi)\nR = radius of the earth.