A ball has a mass of 0.253 kg just before it strikes the Earth after being...
A ball has a mass of 0.253 kg just before it strikes the Earth after being dropped from a building 76.1 m tall. What is its de Broglie wavelength? The acceleration of gravity is 9.8 m/s 2 and Planck’s constant is 6.62607 × 10^−34 J · s. Answer in units of m.
Homework Answers
Given:
Mass of the ball, 
Initial height, 
Plank's constant, 
==========
First, find final velocity of the ball
As the ball fall, its potential energy is converted into kinetic energy
====================
de Broglie wavelength, 
, where 
is the momentum
ANSWER: 
==============================
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