Class Management Help HW 6 Begin Date: 6/17/2018 12:00:00 AM -- Due Date: 7/31/2
ID: 1731473 • Letter: C
Question
Class Management Help HW 6 Begin Date: 6/17/2018 12:00:00 AM -- Due Date: 7/31/2018 11:59:00 PM End Date: 8/16/2018 11:59:00 PM (20%) Problem 1: Consider the following table, which lists the four fundamental forces in our universc. Whenever we talk about thc relative strengths of these forces, we are actually talking about approximate strengths only, and usually for the current epoch of the universe. In the early universe, we expect that (except for the gravitational force), the forces all had the same strength. This problem will explore these relative strengths Relative Strength 10-38 Force Carrier Particle Graviton Range Direction Attractive Only Repulsive Repulsive Repulsive Photon 102 Weak NuclearW and Z Bosons 10-13Explanation / Answer
a) The ration of the strength of the gravitational force to that of the string nucear force = 10^-38/1
= 10^-38
b) The ration of the strength of the gravitational force to that of the weak nucear force = 10^-38/10^-13
= 10^-25
c) The ration of the strength of the gravitational force to that of the electromagnetic force = 10^-38/10^-2
= 10^-36
d) The gravitaional force has a very small influence on atomic model.