# Questions tagged [coriolis-effect]

An effect whereby a mass moving in a rotating system experiences a force (the Coriolis force ) acting perpendicular to the direction of motion and to the axis of rotation.

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### Coriolis force on a particle moving on sphere

Consider a particle moving on a rotating disc, as shown below. The direction of the Coriolis force acting on the particle can be found using the cross-product of the angular velocity vector and the ...
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### Pseudo Orbital motion only due to Coriolis force

Planet, say of mass M and radius R is rotating with some angular velocity ω and a object of mass m (initially on the surface and rotating with the planet) was launched with velocity v vertically ...
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### Foucault pendulum with General Relativity

It is well-known that the plane of the swing of a Foucault pendulum exhibits parallel transport (wrt to the Levi-Civita connection) of a round sphere. Seeing as Einstein's relativity theories ...
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### Coriolis force relation to wind velocity

I'm learning coriolis effect on Winds moving from equator towards North pole. This is for geography. Question: Why is coriolis force stronger for winds having larger speed(larger component of ...
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### Coriolis effect in the bathroom? [duplicate]

I understand that the Coriolis effect is not responsible for the spin effect in the bathroom, but I have never seen a rigorous math prof of this. Where could I find a proof of this? What references ...
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### Does vertical coriolis force affect motions of projectiles?

If an object is projected towards east or west from the equator, we get the coriolis force to be vertical. If this projectile, say, miss its target from below, can this be attributed to the coriolis ...
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### Is there a rigorous proof regarding the non-linear stability of the $L_4$ and $L_5$ Lagrange points?

I have found that many proofs regarding the stability of the $L_4$ and $L_5$ Lagrange points are based on linear approximations of the equations of motion near these points. However, from a dynamical ...
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### Coriolis acceleration for an orbiting and spinning frame of reference [closed]

I'm currently studying the coriolis effect in my undergrad degree and I can't find anywhere on the internet the solution to this question. Please tell me if I'm right or not: Suppose we have an ...
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### Do particles (e.g. atoms/electrons) in large molecules that rotate experience pseudoforces?

Imagine if you have a molecule with a large size, e.g. proteins. Anything that rotates experiences pseudoforces if my understanding is correct (e.g. coriolis, centrifugal etc). Since every molecule ...
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### Coriolis Force on jump and descent

Approximating the Earth by a circle with West facing in the theta-hat direction and East in the opposite, when a person jumps up, the Coriolis force faces West according to the right-hand rule. Upon ...
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### If object is at rest on a frictionless surface with no air resistance. What is the effect of Earth rotation and orbiting on object?

If object is at rest relative to the Earth's surface on a frictionless surface. What is the effect of Earth rotation and orbiting on an object? Does object rotate and orbit with Earth and stays at ...
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### How do the equations of motion of the Foucault pendulum result in the specific law of parallel transport?

I have read that the precession in the plane of oscillation of a Foucault pendulum is equivalent to parallel transport of tangent vectors on a sphere. I am interested in proving this statement using ...
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### Where does the centripetal come from, in a cyclone?

It needs a tremendous amount of impulse ($Force\times time$) to keep the large mass of air and water vapor spinning for several days. Where does the sustained force come from? The centripetal force in ...
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### The motion of a ball thrown in a rotating frame of reference

Assume, there are 2 people staying next to each other on a rotating disk, s.t. there is a straight line from one to the other going through the center of the disk. One throws a ball to the other. I ...
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### Coriolis effect and Cyclones

The Coriolis force predicts that winds in the northern hemisphere should be deflected in a clockwise pattern and winds in the southern hemisphere should be deflected in an anti-clockwise pattern. Why ...
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### Why doesn't the Coriolis force deflect incoming projectiles and rockets? [closed]

The calculation shows that at a distance of 10 km, the deviation due to the action of the Coriolis force will be more than 8 m, and at a distance of 20 km already more than 30 m, which is quite ...
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### Movement of the Foucault pendulum

If my understanding of the Foucault pendulum is correct, then if I am in the northern hemisphere and if I let the pendulum oscillate in the north-south direction, then as the bob moves towards the ...
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### Rotation of the plane of oscillation of the Foucault pendulum

If the plane of oscillation of the Foucault pendulum rotates due to the Coriolis effect, shouldn't the rotation be counterclockwise in the Northern Hemisphere, similar to the rotation of tornadoes? Or ...
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### Direction of Coriolis Acceleration

I read in a textbook that the Coriolis acceleration will deflect an eastward-moving object towards the south and north for a westward-moving object. However, when I work out the cross products myself, ...
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### Coriolis Force question

Let's say a ball moves in an azimuthal path around a rotating disk. The Coriolis force on the ball is given by $-2m \omega \times v$. My intuition tells me that there would be no Coriolis force ...
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### Coriolis effect, angle between beaches [closed]

I'm having some trouble with the following question: A river has width a and floats on the latitude θ on Earth with the speed v. Due to the Coriolis force, the water surface will tilt. How much height ...
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### Coriolis force on a person on a carousel

Good afternoon all, I am looking at the question Running backwards on a carousel from 2020 and the accepted answer given below it. Why is there no centripetal force on the person in either reference ...
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### Do planets experience coriolis effect in terms of rotation around a star?

We all know from General Relativity theory that movement of objects around, for example, a star actually straight in spacetime continuum. It just time distortion causes the movement to curve. ...
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### How did Léon Foucault showcase his Foucault's Pendulum?

When I was thinking of Foucault's pendulum , this question was always bugging me. If we are all rotating with the same speed in one reference frame as the surface of earth with the pendulum , then the ...
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### How does the Coriolis effect explain Ekman transport?

Before answering the question, keep in mind that I am a second year Biology student, with no experience in studying Physics and a very basic understanding of Mathematics. Thus, I would prefer a ...
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### Is the Ugandan local people's experiment on Coriolis right? [duplicate]

There is a local performance on the equator of Uganda. In the southern hemisphere, which is more than ten meters away from the equator, after pouring a bucket of water, the water in the pool with ...
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### Do hurricanes spin?

It is often said that the spin of a hurricane forms as a result of being in a rotating reference frame with the spin caused by the coriolis force. For example, if you’re on a merry-go-round and you ...