Problem Set 3 solution (link had been broken).

Problem Set 5 solution (link had been broken).

Problem Set #10, due at the final.

The table at bottom is updated with lecture notes linked.

Welcome to Physics 21 for Winter, 2011. Our lectures are MWF 10-10:50 am in Broida 1640. Attendance is required also at one of two sections; attend the one you are enrolled in. The two sections are both on Friday afternoons: 12-12:50pm in Phelps 3505; 1-1:50pm in Phelps 1508. Both are taught by Madison Haynie.

The text is Kleppner and Kolenkow, *An Introduction to Mechanics*,
which we call `KK'. Five
copies of KK are on reserve for Physics 21 in the Libary.
I've made available:

An `iClicker' is required as well; these are available at the UCSB Bookstore. Please register your iClicker... use your Perm # as your Student ID.

Calculations must be done, so a scientific calculator (must have trig, exponential, etc) is essential.

Kleppner and Kolenkow is a challenging textbook, and assumes that you have or are rapidly developing good ability in calculus. For those who want to turbocharge or refresh their calculus,
Kleppner and Ramsey, *Quick Calculus* is a good resource... this book is on reserve for Physics 21 in the library.

A second essential resource is the `old' (4th) edition of
*Physics* by Resnick, Halliday and Krane (RHK4). You can obtain used copies of RHK4 for only a few
dollars over the internet. This is the `auxiliary' text. Some of the problems that are assigned will
originate from RHK4. A lot of copies of RHK4 are on reserve for Physics 20
in the library.

A laptop is very useful for a variety of reasons, among them... it is really nice to do calculations in Excel.

The heart of this course is the working of problems. Much of the discussion sections will consist of doing problems. Weekly problem sets will be due Mondays, to be turned in to the Physics 21 boxes in the lobby of Broida Hall, by 5pm. The problems are generally not the type of problems that you can get done in a few minutes... some may take a few hours, so start early, and utilize our office hours. You are also encouraged to work together to figure out how to do problems, but, you must write up your own solutions independently.

Write up your solutions carefully and neatly. Generally, make a clear diagram, introduce algebraic variables for unknowns, and solve for answers symbolically. Plug in numbers at the end, and, do some cross checking as well as consideration of limiting cases (like, what if each mass in the problem becomes very large or very small?).

If homework is late by more than two days from the due date, you will get no credit. If you turn it in up to two days late, you will receive 50\% credit.

The plans for grading are: Class Participation (measured with the iClickers), 10%; Problem sets, 25%; Midterm (currently planned on Monday, Feb. 7 in class), 25%; Final (currently Tuesday, March 15, 8am, 1640 Broida), 40%.

Madison Haynie's office hours in the PLC (1019 Broida, on the first floor behind the elevator) are 12:30-2pm on Monday and 3:30-5:00pm on Wednesday. Prof. Nelson's office hours will be on Friday, 11:05-noon and 2:00-3:00pm in room 2712 in Physical Sciences South. PSR Fellows (advanced Physics Majors who can help you) are available Wednesday and Thursday in the PSR from 6-8pm, and Sunday in 1640 Broida 6-8pm.

The first column shows the week number.

The second column has the lecture number, and
a link to the course lecture notes, when available... don't count on these!

The third column has the date.

The fourth column has the textbook sections in KK to read.

The fifth column has the corresponding KK textbook pages.

The sixth column has a partial list of topics.

The seventh column has the problems due for the week.

The last column has links to some pertinent web pages, and
comments about corresponding material in RHK4.

Week |
#
| Date |
Reading |
Pages |
Partial Topics |
Problems |
Links/Comments | |

1 | 1 | 1/3 | KK 4.1 thru 4.8 | KK pp. 152-176 | Course Organization, Energy, Power | Due 1/10, Solutions | Also read RHK4 Chapters 7 and 8. | |

2 | 1/5 | |||||||

3 | 1/7 | Notes are split between 2 and 4 | ||||||

2 | 4 | 1/10 | KK Chap 4, RHK 7-8 | KK pp. 152-173, RHK4 pp. 131-178 | Work-Energy Theorem, Potential Energy, Conservation of Energy | Due 1/18, Solutions | ||

5 | 1/12 | |||||||

6 | 1/14 | |||||||

3 | 7 | 1/19 | KK Chap. 4, RHK4 Chap. 10 | KK pp. 187-194, RHK4 pp. 207-230 | Collisions, Elastic, Inelastic, 1-d, 2-d | Due 1/24, Solutions | Interative Collision Web Page | |

8 | 1/21 | |||||||

4 | 9 | 1/24 | RHK4 11-4 through 11-6, KK 7.1, 7.2, RHK4 12-1 through 12-3; KK 6.4 | RHK4 pp. 235-251; KK pp. 288-292, pp. 249-252. | Angular Velocity, Rotational Inertia. Notes are split between 8 and 10 | Due 1/31, Solutions | ||

10 | 1/26 | |||||||

11 | 1/28 | |||||||

5 | 12 | 1/31 | RHK4 12-4 through 12-6, KK 6.5 | RHK4 pp. 251-262; KK pp. 253-255 | Angular Acceleration, Energy | Due Tuesday 2/8, Solutions | ||

13 | 2/2 | |||||||

14 | 2/4 | |||||||

6 | 15 | Midterm | 2/7 | RHK4 13-1 through 13-5, KK 6.2-6.3 | RHK4 pp. 271-285; KK pp. 233-247 | Torque, Angular Impulse | Due Monday 2/14, Solutions | |

16 | All this week's lectures linked. | 2/9 | ||||||

17 | 2/11 | |||||||

7 | 18 | All this week's lectures linked | 2/14 | RHK4 13-5 through 13-7, all of 14 KK 7.3-7.6 | Precession, Statics | Due Tuesday 2/22, Solutions | The true `sidereal' dates for the various astrological signs are in these notes. Of course, astrology is non-scientific, but, the `precession of the equinoxes' is an interesting scientific topic. | |

19 | 2/16 | |||||||

20 | 2/18 | |||||||

8 | 21 | Both of this week's lectures are linked. | 2/23 | RHK4 14-4 and 14-5, 15-1 through 15-6, KK 10.1 | Stability, Physical Pendula | Due Monday 2/28, Solutions | ||

22 | 2/25 | |||||||

9 | 23 | All remaining lecture notes linked | 2/28 | RHK4 15-8 and 15-9, KK Note 10.1, 10.1-10.3 | Complex Numbers, Damped, Driven SHO | Due Monday 3/7, Solutions | ||

24 | 3/2 | |||||||

25 | 3/4 | |||||||

10 | 26 | 3/7 | RHK4 15-8 and 15-9, KK Note 10.1, 10.1-10.3 | Complex Numbers, Damped, Driven SHO | Due Tuesday 3/15, Solutions | |||

27 | 3/9 | |||||||

28 | 3/11 |