So guys Does Earth spins at 0.5 Km/sec ? Does it spin at 30 Km/sec round the sun? Does sun spin at 250Km/ sec?
463369
Speed of Earth's rotation at the equator is 0.46 km/s.\nSpeed of Earth's revolution around the sun varies from 29.29 to 30.29 km/s because of it's elliptical orbit.\nThe speed of the Sun's rotation at the equator is 2.0 km/s.
676514
The sun DOES rotate! It also revolves.
54560
The sun does not orbit the Earth (LOL).  The reason we have night and day is because it takes the Earth about 24 hours to rotate (spin).  Each time a side is facing the Sun, it is day, and when it is turned away it is in night.
707945
Earth's graceful 24-hour rotation rate is one of the traits that makes our planet so friendly to life, allowing most parts of Earth to stay a nice, comfortable temperature as they are bathed in sunlight during the day and darkness at night. \nEach planet in the solar system has its own unique rotation rate. Tiny Mercury, sizzling closest to the Sun, takes 59 Earth days to turn around just once. Venus, the second planet, rotates once every 243 Earth days. What's more, Venus rotates backwards from the direction of its orbit around the Sun, as do Uranus and tiny Pluto. Uranus even lies down on the job, rolling around with its axis of rotation pointed nearly toward the Sun.\n\nWhy do Earth and the other planets rotate at all? It will help to understand how our solar system formed. Almost five billion years ago, our solar system had its beginnings as a vast cloud of dust and gas. The cloud began to collapse, flattening into a giant disk that rotated faster and faster, just as an ice skater spins faster as she brings her arms in. The Sun formed at the center, and the swirling gas and dust in the rest of the spinning disk clumped together to produce the planets, moons, asteroids, and comets. The reason so many objects orbit the Sun in nearly the same plane (called the ecliptic) and in the same direction is that they all formed from this same disk.\n\nYou can visit this nasa site which has audeo narration and animation on earth rotation.\nhttp://spaceplace.nasa.gov/en/kids/phonedrmarc/2003_march.shtml
315964
At the equator, about 1000 mph, at the poles not much.\n\nhttp://curious.astro.cornell.edu/question.php?number=665
419674
The Earth is approximately 25,000 miles in diameter at the equator, and it spins once in about 24 hours.  So, at the equator, the Earth is spinning about 1000 miles per hour.  However, if you live in the US, the Earth is moving much slower-about 70% the speed depending on your exact latitude-and slower as you go north or south from the equator.
233745
The mean radius is 6371.0 km.  The radius at any latitude is equal to that times the cosine of the latitude.  The Earth turns once on it's axis in 23 hr 56 min 4.0989 sec, or 23.93447 hrs.\n\nIt takes that long to travel 2(Pi)(6371)(cos(lat)).  Divide that distance by the time above and you're in the ball park (neglecting the difference in polar and equatorial radii).\n\nNote: The figure given for the Earth's rotation is correct according to Astrophysical Data: Planets and Stars.  The 24-hour day is measured from noon to noon - in relation to the Sun.  The Earth kind of rolls around its orbit, so after it has turned thru one rotation it has also moved along its orbit.  It has to turn for another 53.9 sec past the full rotation for the Sun to be back to due south again.
481150
the earth spins at 1500 mph.  If you take a ball and spin it extreemly fast you will find that the center of the ball will grow and the poles will flatten.  It is like driving a car very fast.  The higher up ion speed you go the lower to the ground it will become.  I has to do with Volocity.
868089
You can easily compute the Earth's angular speed by considering that the Earth makes little less than one complete round on itself in a day.\n\nThat "little less" accounts for the fact that, taking the Sun as reference, since in a year the Earth also makes a revolution around the Sun, that revolution adds up 1 day that shall not be counted.\n\nTherefore, the Eart's angular speed is 1-1/365 rounds/day.\nWhich is, in International Units: 1.154 x 10^(-5) rad/s.
341487
The sun rotates approximately once for every 27 Earth rotations.  Unlike the Earth, because the sun is gas, it does not rotate at the same rate at all locations.  If the Sun were to stop rotating, it would probably collapse inward possibly resulting in an enormous explosion as the particles within the core became superheated.
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.
505384
We can see the sun rise and set, and it would be impossible for the sun to revolve around the earth because of the huge difference in math, so the only explanation is that the earth is spinning.\n\nIn reply to the first two replys, the sun is not the center of the universe, it is the center of the solar system. Also, because of the sun's gravity, we REVOLVE, but that has nothing to do with rotation. MOMENTUM is what causes us to not feel the spin/movement, not inertia.
626709
Four hours.  The earth rotates through a full 360 degree circle in 24 hours, this means it rotates at the rate of 15 degrees and hour (360 divided by 24).  So it will take 4 hours to rotate through 60 degrees.
755454
I answered this yesterday, but...\n\nWhat makes the Earth Spin...\n\nAngular Momentum. Think of a figure skater pulling their arms closer to their body while spinning, sudennly they are spinning VERY fast, then they let their arms out, and they slow down. This is because the arms still have the same amount of rotational energy as they did when they were further from the body, but when they are pulled close, they don't have as far to go to complete one rotation... the radius and circumference are smaller but the distance covered is the same over the same amount of time. This means faster rotation.\n\nHow does that have anything to do with the Earth? Simple. When the Earth formed, it formed by collecting bits of matter from space, and these bits of matter, ranging from dust to huge asteroids and larger, were all like tiny arms, adding rotational energy to the earth as they came in closer and stuck. \n\nRight now, the moon is slowing the earth's rotation as it slowly moves away from the Earth--again, this is the same process. How can this be when the moon doesn't even touch the Earth? Gravity. Gravity makes the earth and moon behave almost as if they were touching. The short explanation is that the center of gravity of the earth-moon system lies just below the surface of the earth, causing tides. Since the moon is moving away, it requires less orbital velocity to maintain it's orbit, and so the tides slow the earth more as the moon's orbital speed slows.\n\nEventually, the earth and Moon may both be tide-locked to each other, and this will happen long before the earth is tide locked to the sun (the tides have slowed rotation of the earth to the point where it always has one side facing the moon (or sun)).\n\nWhat makes the earth not stop spinning?\n\nAs mentioned before, angular momentum. The earth's surface can be slowed, but that energy has to go somewhere--it goes to speeding up the orbital velocity of the moon, which is why the moon is moving further from the earth...\n\nThe earth is moving around the sun because of the way the sun and all the other stuff in the solar system formed--from a cloud of gas and dust that collapsed into a spinning disk. The mechanics of the whole thing is still being learned and debated. As long as the Earth keeps moving in a straight line perpendicular to a line drawn between the Earth and the Sun, the Earth will continue to fall toward the Sun (by gravity) at exactly the same speed that it is flying perpendicular, and thus, like a ball on a string, it will follow a curved path around the sun.
964882
It depends where on Earth you are.\nAt the North Pole, you're not moving at all (at least in this frame of reference - you're still moving with the Earth round the Sun, with the Sun round the Milky Way, and so on), just spinning on your axis.\n\nAt the Equator, you travel the circumference of the Earth, approximately 40,075km, in 23 hours 56 minutes (a siderial day), giving you a speed of 1674 km/h or 1,040 mph.\n\nAt other points, your speed will be somewhere in between.
352683
The earth has several different movements. First, it rotates on its axis, which takes 24 hours. During this period, the parts of the earth that face toward the sun experience day, while the parts that face away from the sun experience night. Second, the earth revolves around the sun.. in a large elliptical orbit. This process takes a year. The earth's journey around the sun along with the earth's tilting axis produce the seasons. Third, the earth, sun and other planets are all moving within the galaxy, but this is on a very large scale, and is not really noticeable or of interest to most people.\n\nTo sum up:\nmovement of the earth on its axis: rotation. it takes 24 hours.\nmovement of the earth around the sun: revolution. it takes 365.24 days.
168503
Finally, the gravitational pull between the Earth and Sun causes the Earth to travel around, or "orbit", the Sun at a velocity of 29.8 km/sec. At the same time, the Earth also turns on its axis causing the daily cycle of day and night. This "rotational velocity" is approximately .47 km/sec. That means that at the same time we're hurdling through space at nearly 67,000 mph, we're also spinning around in circles at over 1000 mph! Whew! Almost makes you dizzy, doesn't it?