The Hydrogen Atom
(a) How many angles can L make with the z-axis for an l = 2 electron? (b) Calculate the value of
the smallest angle.
Study Guide for Physics 1 Test1. Worked Examples for Chapters 1, 2 and part of chapter 3. Hey guys so we made it past Chapter 1, 2 and part of chapter 3, and now we have our first test coming up. This may seem like a lot but honestly all you have to do is take a deep breath, read over your question once or twice, draw a table of what you know and what the question wants you to find. Once you go through these steps, you won’t struggle with finding the right formula to use. This Physics test maybe a little confusing for some people but I did physics for 3 years in high school, and using those steps makes it way easier to figure out what formula you need and once you’ve done that you are one step closer to finding you answer. So for this study guide I am going to solve all the practice questions he sent through the email and also the spring test 1. Examples: 1. What roughly is the percent uncertainty in the volume of a spherical beach ball whose radius is r = 0.84 + 0.04m Solution: 2 So the volume of sphere is v = 4/3(πr ) 2 And the area of a sphere is a = 4πr Next we find the derivative of the volume: 3 dv = 4/3(πr )/3 2 dv = 4πr dr Next we are going to divide dv by v Dv/v = 4πr dr ÷ 4(πr )/3 Dv/v = 4πr dr x 3/4(πr ) Dv/v = 3dr / r Dr(derivative of the radius) = 0.04 And r = 0.84 So 100 x 3(0.04/0.84) 100 x 3(0.0476) = 100 x 0.14286 The percentage therefore is equal to 14.29% 2