Leave comments with any questions you have.

## Finding Velocity of Geosynchronous Satellite – Video Lesson

How to find the velocity of a geosynchronous satellite.

## Physics 2B Final Average

The average score on the final was 73.4%

The grading followed the cutoffs on the syllabus.

## Study Guide for the Final

Problems to focus on:

Chapter 26: 5, 20, 27, 30, 42, 51

Chapter 27: 1, 16 (and stationary observer variation), 20, 31, 36

Chapter 28: 8, 9, 13, 35, 40

Chapter 29: 40

Chapter 30: 5, 25

**Notes:** You may bring one side of an 8.5 x 11 sheet of paper with equations. Don’t put examples on it.

**Topics may include:**

RMS current and voltage, power use, impedance, RLC circuits, relative motion, relativistic effects, length contraction, time dilation, the photoelectric effect, particle in a box, absorption and emission, binding energy, radioactive decay and half lives.

## Assignment #14 Chapter 29 & 30

A few last problems:

Chapter 29: 10, 40

Chapter 30: 5, 25, 37

Due next Wednesday

## Assignment #13 – Chapter 28 Problems

Chapter 28 Problems:

6, 8, 9, 13, 17, 20, 29, 32, 35, 36, 40, 43

Due Friday, May 18

## Physics 2B Final

Wednesday May 30, 8:00 AM.

~ 2 hours

Chapters 26, 27, 28, 29, 30. (Not all the material from 28, 29, 30 will be on the final)

Test is worth 20% of your grade.

More information to be posted.

## Assignment #12 – Chapter 27 Problems

Chapter 27

1*, 4, 7, 8, 12, 15, 16, 20, 21, 28, 31, 36

Due Monday

For problem 1, modify it so that the sound appears to be traveling at 335 m/s and 355 m/s. The numbers listed seem fishy though.

One source stated Usain Bolt’s top speed was 43.93 km/h ( 27.3 mph) in m/s is **12.2 m/s.**

I used 12 m/s as an approximation for his max speed.

If you used the numbers listed in the book…… you would get a speed that seems unreasonable to me.

## Assignment #11 – Chapter 26 Problems

Chapter 26 Problems:

1, 5, 11, 16, 18, 20, 21, 25, 27, 30, 34, 42, 46, 51

Due Tuesday May 8.

## Test 5 Preparation

Know how to do these problems:

Chapter 24: 2, 14, 18, 25, 29, 31

Chapter 25: 8, 15 (try #16), 23, 28, 31, 37, 45

Other types of problems may show up on the test, but the list above will cover at least most (if not all) problems that will be on the test.