- #1

AdrianHudson

- 48

- 2

## Homework Statement

What is the corresponding wavelength, in meters, of an electron moving at 1 m/s?

Velocity: 1 m/s

Planks Constant = 6.626 069 57 x 10^-34

Mass of electron = 9.109 382 91 x 10^-31

Momentum = unknown

## Homework Equations

We need to find momentum to use De Broglie's equation.

Momentum = Mass * Velocity

De Broglie's Equation for finding the wavelength: λ = h/p

h being the planck constant

## The Attempt at a Solution

My attempt.

Finding momentum : P = 9.109 382 91 x 10^-31 * 1 m/s

p = 9.109 382 91 x 10^-31

finding the wavelength

First divide the numbers

**WITHOUT**the exponent

so 6.626 069 57/9.109 382 91 = 0.727 389 51

now exponents -34/-31

= -3 (I took out the extra steps)

final answer λ = 0.727 389 51 x 10^-3

is this correct?

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