The x coordinate of an electron is measured with an uncertainty of 0.200mm . what is vx, the x component of the electron's velocity, if the minimum percentage uncertainty in a simultaneous measurement of vx is 1.00{\rm \\%} ? use the following expression for the uncertainty principle: ? x? px? h2,

where ? x is the uncertainty in the x coordinate of a particle, ? px is the particle's uncertainty in the x component of momentum, and h is planck's constant.

express your answer in meters per second to three significant figures.

repeat part a for a proton.

express your answer in meters per second to three significant