Solve the following problems on your own paper. Please:

• Show all work.
• Put a box around your final answer to each problem.
• Be sure proper significant figures (SF) used for all answers.
• Separate all solutions with a horizontal line on your paper.
• A random selection of four problems will be graded for 25 points each.
• Solutions for suggested odd problems can be seen by following links.
• Solutions for assigned problems will be linked from this page after the due date.

Chapter 22

#2

The wheel turns through 1/720 rev. in the time it takes for light to travel to the mirror and back.

#6

A diagram really helps with this one.

#16

A little geometry should give you the angle of incidence, etc.

#20

Use the solutions from problems 18 and 19 to help solve this one.

#22

Answer with 3 SF. Again, a diagram really helps on this one. Split this problem up into a few easy to manage fragments.

#32

Maintain 4 SF during intermediate calculations, then find the difference between the two angles at the end. Your final answer should have 2 SF.

#38

Use geometry to find the 3 angles needed here. A diagram will help.

Suggested problems for chapter 22:

C2, C3, C4, C6, C8, C14, C16, C17, #1, #3, #4, #7, #8, #9, #10, #11, #12, #13, #14, #15, #18, #19, #21, #23, #27, #28, #29, #30, #31, #33, #34, #35, #36, #37, #40, #42, #43, #45, #46, #47, #49

Chapter 23

#8

You may answer in cm for all problems in this chapter if you wish.

#10

Convex mirrors only form upright images of real objects (objects that are in front of the mirror, with positive object distances).

#22

Answer with 3 SF using equation 23.7 (the radius of curvature of a flat surface is infinity).

#32

Use the magnification equation and the lens equation. You should have two equations and two unknowns.

#40

Use a simple diagram of the system to figure out how the image distance for the first part is related to the object distance for the second part.

#44

Again, you may use cm throughout this problem.

Suggested problems for chapter 23:

C4, C7, C9, C10, C13, C15 C16, C17, #5, #6, #7, #11, #12, #13, #14, #15, #16, #17, #18, #19, #25, #27, #28, #29, #31, #33, #34, #35, #36, #37, #39, #41, #42, #43, #47, #48, #49, #50, #51