An excited atom can lose energy by

a. emitting a photon
b. absorbing a photon
c. undergoing the photoelectric effect
d. increasing its de Broglie wavelength
e. the uncertainty principle


A

Physics & Space Science

You might also like to view...

Voyagers 1 and 2 were examples of which kind of space mission?

A) flyby B) orbiter C) sample return D) lander/probe

Physics & Space Science

A spaceship captain lands on an unknown planet. Before venturing forth, he needs to find out the acceleration due to gravity on that planet

All he has available to him is some thin light string, a stopwatch, and a small 2.75-kg metal ball (it was a rough landing). So he lets the ball swing from a 1.5-m length of the string, starting at rest, and measures that it takes 1.9 s for it to swing from the place where he released it to the place where it first stops as it reverses direction. What is the acceleration due to gravity on this planet?

Physics & Space Science

Starting from rest, a car travels 1350 meters in 1.00 minute. It accelerated at 1.0 m/s2 until it reached its cruising speed. Then it drove the remaining distance at constant velocity. What was its cruising speed?

Physics & Space Science

The concept of entropy tells us how exothermic reactions are

A) favored over endothermic reactions. B) not as favorable as endothermic reactions. C) just as effective as endothermic reactions. D) the reverse of endothermic reactions.

Physics & Space Science