Consider an atom that has a width of 1.2 x 10^-10 m. An electron is somewhere along a line of this length, but its exact position is not known.

1. Find the minimum uncertainty in the electron's velocity.

a. 4.8 x 10^-5 m/s

b. 4.4 x 10^25 m/s

c. 4.8 x 10^5 m/s

d. 4.4 x 10^-25 m/s

e. 2.3 x 10^-5 m/s

2. What can be concluded about the electron's velocity?

a. It can be very precisely known.

b. It is very slow

c. It is very fast

d. We have no idea how fast it's moving