chemistry help involving wavelength/debroglie!!! will give best answer?

Question

Calculate the de Broglie wavelength for each of the following.
a.) an electron with a velocity 10.% of the speed of light
b.) a tennis ball (55g) served at 35 m/s (~80 mi/h)

Answer 1

In your text and/or lecture notes, you should have an equation that lets you solve these problems very easily. Just plug in the values, paying attention to your units and calculate the wavelength.