Author Question: If the position of an electron (m = 9.11 10-31 kg) could be measured to within 10-30 m, the ... (Read 63 times)

aabwk4 · **on:** Jul 28, 2018

If the position of an electron (m = 9.11 10-31 kg) could be measured to within 10-30 m, the uncertainty in the magnitude of its speed could be as much as
a. 6 10-34 m/s.
b. 6 1025 m/s.
c. 6 1030 m/s.
d. 1031 m/s.
e. 1061 m/s.

Question 2

A baseball (1 kg) has an energy of 100 joules. If its uncertainty in position is 1 m, what is the percentage uncertainty (Dp/p 100) in the momentum of the baseball?
a. <<1
b. 1
c. 2
d. 5
e. 10