In the Quantum World, Uncertainties Exist in Our Knowledge of

Multiple Choice

In the quantum world, uncertainties exist in our knowledge of

A) positions and velocities of objects when we first start observing them.
B) velocities and positions of objects after they have undergone a change.
C) the sum of an object's position and velocity.
D) the difference between an object's position and velocity.
E) when to start observing an object and how to make those observations.