Summary

• Summer Break

• Syllabus overview
  • books & supplies
  • course goals
  • assignments & grading
  • Canvas system
  • web resources
  
  
• About Prof. Menningen



• How to learn physics
• learning athletics
• learning music
• taking credit and blaming
• natural gifts vs. hard work (article)
• homework and discussions

In 2019 Derrick Henry ranked #1 in the league with 1,540 yards on 303 attempts, 5.1 ypc

In 2019 Dion Lewis ranked #78 in the league with 209 yards on 54 attempts, 3.9 ypc




• How to fail at college
• Hold beliefs that make you stupid
• Adopt shallow thinking strategies
• Never stop to ask questions
• Maintain poor study and note-taking habits
• Give up after any setback
• Videos by Dr. Stephen Chew, cognitive psychologist, Samford University



• How to succeed in college

• Set a GPA goal
• Treat college like an 8 to 5 job
• Attend class
• Keep up
• Relate to your professors
• Be a "well-rounded square"






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Chapter 3

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• What is light?

• Maxwell's equations
• wave equation
• Vector animation
• Wave applet
• photoelectric effect applet
• photons

Example #1

Example #2

Example #3

3.18
Laser pulses lasting 2.00 ns have a 2.5 mm diameter. What is the length in space of the wavetrain?
A. 60 cm
B. 20 cm
C. 50 cm
D. 15 cm

Answer















3.18
Laser pulses lasting 2.00 ns have a 2.5 mm diameter. If each burst has an energy of 6.0 J, what is the average energy per unit volume of the light?
A. 2550 J/m³
B. 1.22×10⁶ J/m³
C. 2.04×10⁶ J/m³
D. 1.77×10⁻⁵ J/m³

Answer















3.18
Laser pulses lasting 2.00 ns have a 2.5 mm diameter. If each burst has an energy of 6.0 J, what is the average electric field in the wavetrain?
A. 1.18×10¹³ V/m
B. 6.79×10⁸ V/m
C. 4.61×10¹⁷ V/m
D. 6.01×10⁻³ V/m

Answer



























 



A. 60 cm




















 



C. 2.04×10⁶ J/m³




















 



B. 6.79×10⁸ V/m