A crane exerts a net force of 900 N upward on a 750-kilogram car as the crane starts to lift the car from the deck of a cargo sh
1 answer:
You might be interested in
Answer:
Explanation:
= Uncertainty in position = 1.9 m
= Uncertainty in momentum
h = Planck's constant =
m = Mass of object
From Heisenberg's uncertainty principle we know
The minimum uncertainty in the momentum of the object is
Golf ball minimum uncertainty in the momentum of the object
Uncertainty in velocity is given by
The minimum uncertainty in the object's velocity is
Electron
The minimum uncertainty in the object's velocity is .
Answer:
B. A repulsive force of 8.0*10^3 N.
Explanation:
As we know by Coulomb's law that the electrostatic force between two charges is given as
here we know that
r = 3.0 m
now we have
since both charges are similar charges so they will repel each other by the force we calculated above so correct answer will be
B. A repulsive force of 8.0*10^3 N.