# Does The Earth Spin Fast Or Slow?

## How fast does the Earth spin at 29 N?

My know-it-all-friend and I are having a debate because I was always told that the Earth spins fast, whereas she believes the Earths spin slow. I tried trigonometry although I have not learned it yet, but I can out with an answer of 14,606km/hr. OR 9,075mi/hr. Can someone tell me if this is correct and if it is not, what is the correct answer? THANKS!

Extropolating 29° between 15° @ 107.551 km/° and 30° @ 96.486 km/° I get 97.224 km/°.

As the world turns at 15°/hr; 15°/hr • 97.224 km/° = 1,458.4 km/hr or 906.38 mi/hr.

You've added an extra zero somewhere along the lines, but other than that, we've gotten the same number. Your extra zero should have been caught as you likely know that the Earth is 25,000 miles around at the equator and goes round once in 24 hours, so a bit better than a 1000 mi/hr would be the highest possible value. Use quick estimates to check yourself, and keep up the good work,

.

## How fast does the Earth spin?

How fast does the Earth spin? If Earth spunned at 10,000 RPM per second, what would happen to its inhabitants? Would they be thrown off in space? I'm sorry, should have been more specific with the question. Yes I know it spins one Revolution per day...... But how fast is that in terms of miles?

How fast does the Earth rotate?

In round numbers the Earth is 25,000 miles around the equator, so 25,000 miles in 24 hours is 1,042 MPH.

But 1 foot from the pole, the distance around the earth is only 2*1*PI=6.28 feet which is 6.28/5280 or 0.00119 miles. That distance in 24 hours is 0.00005 MPH. At any latitude, the distance around the Earth is 25,000*cos(latitude). For example, at 30 degrees latitude the circumference is 25,000*cos(30)=25,000*0.866 or 21,651 miles. That distance in 24 hours is 902 MPH.

If the Earth rotated at 10,000 PRM, not only would we all be thrown off, but the Earth would tear itself apart. That is REALLY fast.

## Do the gas giant planets have unstable spin axises?

The earth's spin axis tends to slowly "precess," or wobble like a top. I know that this is the case with all the rocky inner planets. I was just wondering if this was true of the gas giant planets as well.

They are rotating. They are orbiting. They have a torque from the sun. They will precess.

Roughly speaking, a planet's precession will be proportional to

∝ ω /r^2 R^2

r = planet's radius

R = distance from sun

ω = rate of rotation

Take jupiter. It spin's twice as fast as earth. It is 5x farther from the sun. It's radius 11x of earth.

We'd expect a rate of precession to be 2/5^2*11^2 = 6.6x10^-4 that of earth's. Very, Very slow.

*********

PS. Don't confuse the precession of Mercury's orbit (which is eliptical) with the precession of its pole.

## How do we know which way the earth orbits the sun?

So the earth orbits the sun anti-clockwise with Britain at the top but how do we know that Britain isn't actually at the bottom of the earth meaning the earth orbits clockwise? Or even if the earth spins sideways on its axis?

Man chose his standards. If you choose to call the South Pole the North Pole, and turn the maps upside down, nothing truly changes, just our reference points. However, the Earth's spin is constant and (almost) non-changing, and the angle of our spin with relation to our orbital plane likewise isn't changing (at least, not very fast...) So, we're definitely not sidewise on our spin....

## How to spin a heelflip very fast?

ok so i know what to do but i just cant get it to spin fast enough...i usually get like half a heelflip and it like flips in slow-mo..just need to know how to spin a heelflip like a maniac

well insted of just sliding ur foot of the board flick your heel, just like a kickflip flip just do it with your heel. just dont flip to the nose of your board because then the board is going to come up and hit u no what

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