What is the total momentum of the universe?

zero
The total momentum of the universe is always the same and is equal to zero. The total momentum of an isolated system never changes. Momentum can be transferred from one body to another.

Is it possible for the angular momentum of an object to be zero if the angular velocity is non zero?

Unfortunately, in general, the answer to the above question is no! This conclusion follows because the body may possess non-zero angular momentum components about axes perpendicular to its axis of rotation. Thus, in general, the angular momentum vector of a rotating body is not parallel to its angular velocity vector.

Is the total momentum of the universe conserved?

The total momentum in the universe is conserved. The momentum of a single object, however, changes when a net force acts on the object for a finite time interval. Conversely, if no net force acts on an object, its momentum is constant.

How do you convert linear momentum to angular momentum?

Linear momentum (p) is defined as the mass (m) of an object multiplied by the velocity (v) of that object: p = m*v. With a bit of a simplification, angular momentum (L) is defined as the distance of the object from a rotation axis multiplied by the linear momentum: L = r*p or L = mvr.

What does it mean when momentum is zero?

An object is said to have zero momentum when either the mass or the velocity is zero. Since the mass of the object cannot be zero, the velocity of the object must be zero for momentum to be zero. Velocity is zero for an object at rest.

How is it possible to change the momentum of a system that contains two objects?

There are two possible ways depending on the problem. 1) The change in momentum of an object is its mass times the change in its velocity. Δp=m⋅(Δv)=m⋅(vf−vi) . 2) The change in the momentum of an object can also be found by considering the force acting on it.