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mass, velocity, and radius.
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When is the angular momentum of a system not conserved?
The angular momentum of a system is not conserved when a net external torque acts upon the system.
What is the law of inertia for rotating systems in terms of angular momentum?
An object or system of objects will maintain its angular momentum unless acted upon by an external net torque.
What moment of inertia does not depend on angular velocity?
An object that is rotating at constant angular velocity will remain rotating unless it is acted upon by an external torque.
What does the earth spins on?
the earth spins on an axis, which is carried over by conservation of angular momentum when the earth was created
Conservation of angular momentum tells us?
Angular momentum will not change unless an external torque acts upon the system The short answer would be that angular momentum is conserved, i.e. it cannot be created nor destroyed. A more technical answer would be that there is a certain theorem in theoretical physics called Noether's theorem which shows that if a physical theory exhibits rotational invariance (i.e. the physics are the same even if you rotate the system) that angular momentum conservation is a result. According to particle physics therefore the conservation of angular momentum seems to tell us that the Universe is invariant under rotations. This might seem strange, because surely rotating yourself changes how think look, but the physics involved remains the same.
The momentum of an object depends on what two forces?
The amount of momentum that an object has is dependent upon two variables: how much stuff is moving and how fast the stuff is moving. Momentum depends upon the variables mass and velocity. In terms of an equation, the momentum of an object is equal to the mass of the object times the velocity of the object.
Why do toilets swirl?
Toilet water swirls due to a law of motion called "Angular Momentum". This is one of the laws of planetary motion discovered by Keppler. It basically describes the natural movement of matter whether it be water in a toilet bowl, planets around a sun or galaxies around a black hole. This natural movement is of a circular nature.Of course in a toilet bowl often times the water shoots out at an angle upon flushing so that a circular motion is created on purpose. But a more natural example of this is the water that goes down the drain in a bath tub. Again we see the same motion as a galaxy around a central mass in the center. This is theorized to either be a black hole or simply a globular cluster of stars forming a gravitic mass at the center of each galaxy to which other stars are pulled into via the strong gravitational pull of this gravitic mass or black hole.For a much more detailed and specific explanation of angular momentum, keep reading and visit the Wiki link below.In physics, the angular momentum of a particle about an origin is a vector quantity equal to the mass of the particle multiplied by the cross product of the position vector of the particle with its velocity vector.[1] The angular momentum of a system of particles is the sum of that of the particles within it.[2] Angular momentum is an important concept in both physics and engineering, with numerous applications. Angular momentum is important in physics because it is a conserved quantity: a system's angular momentum stays constant unless an external torque acts on it. Rotational symmetry of space is related to the conservation of angular momentum as an example of Noether's theorem. The conservation of angular momentum explains many phenomena in nature. http://en.wikipedia.org/wiki/Angular_momentum
What is the difference between law of conservation of energy and conservation of momentum?
conservation of momentum depend upon mass and velocity.by the formula its given as m'.v'=m.v but the energy have void area it apply in themodynamics,revolution of planet in every physical universe..where is velocity is not taken in count there no momentum but there have some specific energy of body
What are the particulars of the law of conservation of momentum?
In a closed system with no external forces acting upon it, the momentum of the system is constant.
When does a car have momentum?
Momentum = Mass x Velocity. (p=m*v)The mass of an object made of matter can not be zero.If the object (car) is moving, then the velocity will be non-zero, and the object will have non-zero momentum.So, if you are driving or rolling the car, it has momentum.If it is parked, then it will have 0 velocity (with respect to the earth), and thus will have 0 momentum.So, when the car is moving, it has net momentum. When it is parked it has zero momentum. I then just becomes a mater of semantics whether having zero momentum is equivalent to not having momentum, or if it is actually a valid value for momentum or state of momentum.
Does inertia play a part in the movement of the planets?
YES it does. Planetary motions (orbits) are partly the consequences of the Law of Conservation of Angular Momentum. Simply, the motion of the original "proplyd" or protoplanetary disk, is retained by the planets formed from it. While "inertia" is often thought of as the tendency of bodies at rest to remain at rest, it can also refer to the tendency of bodies in motion to remain moving in a straight line unless acted upon by a force. The gravitational force between the Sun and a planet is such a force. The combination of inertia and gravity causes the planet to orbit the Sun. The planets orbits are ellipses (Kepler's First Law), so the speed of the planet varies as it moves around the Sun. Here again conservation of angular momentum is involved. In fact, Kepler's Second Law is a consequence of the conservation of angular momentum.
Is determined by mass and velocity of an object?
Momentum and kinetic energy are determined by the mass and velocity of an object.Momentum = m• v, where m is mass in kg and v is velocity in m/s.KE = 1/2mv2, where m is mass in kg and v is velocity in m/s.
