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## Homework Statement

Suppose the minimum uncertainty in the position of a particle is equal to its de Broglie wavelength. If the particle has an average speed of 4.7 105 m/s, what is the minimum uncertainty in its speed?

## Homework Equations

lambda=h/p & (Py)(Y) is greater than or equal to h/4pi

## The Attempt at a Solution

I'm not really sure where to start