Hmm...angular velocity. First of all, when you talk about the universe, it seems like you are talking about an object. But the universe is a rapidly expanding object of space and time, so there should be no real boundaries. That means it can't really rotate at all. So, in conclusion, using angular velocity is not suitable for measuring what you are trying to find.
There is no "zero gravity" place. Gravity permeates all the universe. Astronauts in orbit are often said to be in zero gravity but they are, in reality, on a position where their orbital velocity balances the attraction of the Earth.
Not necessarily. A circular orbit around a central body, such as a planet, would also have a radial velocity of zero at all times. In a circular orbit, the satellite's velocity vector is always perpendicular to the radius vector, resulting in a constant radial velocity of zero.
In principle, yes; but please note that:* There is no such thing as an "absolute velocity". You need to specify that it has zero velocity with respect to some other object. In other words, that it should move at the same velocity as that other object. As Earth, for example.* An object won't stay at such a relative velocity of zero for long. Forces, and mainly gravitational forces, will soon change its velocity. For instance, if you have a spacecraft that is in orbit around Earth, and you make it halt, it will fall straight down. (In this case, it is precisely its speed that keeps it in orbit.)
Almost certainly. As the dust and gas fall into the nebula under its gravity, each atom will impart SOME sort of sideways momentum, and the total of all that is almost certainly not zero; there will be some angular momentum.
"Balanced forces" doesn't mean that an object doesn't move. "Balanced forces" means that the vector sum of forces on an object is zero. Now, according to Newton's First Law, if no force is acting on an object, if that object is at rest it will continue being at rest; if it is moving, it will continue moving with the same velocity. In other words, there will be no CHANGE in velocity; that doesn't mean that the velocity must necessarily be zero.
No, an object is considered stationary when it has zero velocity and zero acceleration. Angular acceleration refers to the rate at which an object's angular velocity changes over time. If something has a non-zero angular acceleration, it means that it is rotating at a changing rate.
No, a stationary object cannot have a non zero angular acceleration. Angular acceleration is a measure of how an object's angular velocity changes over time, so if an object is not rotating, its angular acceleration is zero.
When moments are unbalanced, it means that there is a net torque acting on an object, causing it to rotate. This can result in rotational motion or change in angular velocity. When moments are balanced, the total torque acting on the object is zero, resulting in either no rotation or constant angular velocity.
It was 6 radians per second. Angular acceleration = -3 radians per second2 Initial angular velocity = 6 radians per second. Final angular velocity = zero. Average angular velocity = 3 radians per second. Angular displacement in 2 seconds = 3 x 2 = 6 radians.
No, it is not necessarily true that if the total angular momentum of a system of particles is zero, then all the particles are at rest. The total angular momentum being zero means that the rotational motion of the system is balanced, but individual particles within the system can still have their own angular momentum and be in motion.
-- The angular velocity isone revolution/minute = 360 degrees/minute = 6 degrees/second .(2 pi) radians/minute = pi/30 radians per second . -- If the clock is working properly ... not starting, stopping, speeding up, orslowing down ... then the angular acceleration of any of its hands is zero.
Angular acceleration is equal to zero when an object is rotating at a constant angular velocity without any change in its rotational speed. This occurs when the net torque acting on the object is zero, meaning that there are no external forces causing the object to accelerate or decelerate rotationally.
The whole point of a pendulum is that is swings back and forth. It does not travel at constant angular velocity: the angular velocity is zero at the two ends of its arc and it reaches a maximum when the pendulum is vertical. Consequently there cannot be a sensible answer to the question as asked.The average angular velocity, which is an entirely different measure, is 45 degrees per second.
No, a particle in one dimension with zero speed will have zero velocity. Velocity is a vector quantity that includes both the speed and direction of motion, so if the speed is zero, the velocity will also be zero since there is no direction of motion.
Yes, an object with zero velocity is either at rest or has come to a complete stop. Velocity is a vector quantity that indicates both speed and direction of motion, so a zero velocity means the object is not moving.
Yes. Zero velocity is a velocity; if it is always zero then it is a constant velocity.
The velocity is zero because the total displacement vector is zero.