An electron is trumped within a sphere whose diameter is 7.0 * 10 ^ -15 m what is the minimum uncertainty in electrons momentum

A proton is accelerated to a speed of 2.10*10^5 m/s. If the uncertainty in the measured speed is 5% what is the minimum uncertainty in the position of the proton?

The speed of an electron is 5.67 x 106 m/s with an uncertainty of 7 x 104 m/s. What is the minimum uncertainty with which you can measure its position? Please give your answer in nanometers (1 nm = 10-9 m)

The lifetimes of the levels in a hydrogen atom are of the order of 10-8 s. Find the energy uncertainty of the first excited state and compare it with the energy of the state. 3 p RO