Question

In parts (1) and (2), calculate the minimum uncertainty in the momentum for the objects described. Refer to Heisenberg's Uncertainty Principle in your textbook.

A child runs through a door having a width of 0.79 m.

Δp_child =

A proton passes through a slit that has a width of 7 x 10^-10 m.

Δp_proton =

A car of mass 1170 kg travels at 20 m/s (45 mph). Assume that the velocity measurement is known to within 1 % on either side of this value. What are the maximum value, the minimim value, and the uncertainty of the car's momentum?

p_car,max =

p_car,min =

Δp_car =

Calculate the minimum uncertainty in the position of the car.

Δx_car =

Answer 1