Does the uncertainty principle apply to the macroscopic scale?

Answer 1

Yes it does. George Gamow used an analogy of an elephant hunt (riding on an elephant) under quantum mechanics by describing the bullets shot as going here there and everywhere but mostly here because they are so small and greatly affect by quantum mechanics principles. The location of the gun was somewhat more certain because it was larger. The skin of the elephant looked only slightly fuzzy because the elephant is huge. The "tunnel" effect that allows electrons to leak when not expected to in semiconductors due to quantum mechanics also applies to cars leaking out of garages. But the probability of a car leaking is vanishingly small due to its size. We also know that Einstein's principles of relativity apply to motorcycles as well as electrons traveling at 90% of the speed of light but at slow speeds there is no significant effect and Newton's laws of motion suffice.

Answer 2

Not in your example. The dice can be adequately explained by classical mechanics. But many quantum mechanical effects result in emergent phenomena that have macroscopic effects. Quantum mechanics drives physical chemistry which dictates the nature of everything around us. Just about all electronics technologies from the transistor onwards are very dependent on understanding QM.

Answer 3

The Uncertainty principle is universal.It is used to obtain deterministic answer.