The first thing you need to do is to register for the course with WileyPlus.  You do that by going to the site http://edugen.wiley.com/edugen/class/cls55759/ which is specific to your section.  If you are in Mr. Carter's Physics 140 setion or in Physcis 240, do not register with this url!!!  If you cannot easily figure out what to do, you can go to www.wileyplus.com and look at the materials labeled as:

Need Help Registering? View a 2-Minute Tutorial now.

Visit the students' 1st Day of Class website for tutorials, user guides, & more.

Velocity and Acceleration Lab.  Read it First!  You MUST bring your lab manual, but you do not need the lab notebook  This lab will be due at the end of the lab period unless otherwise announced.

The first homework assignment is assigned and is due on this date!

When you go to the course website, you will find an assignment of 15 problems, all of which are to be done online.  They do not all have the same format; some offer hints, and some do not.  I recommend printing them out and thinking/working them out offline.  Only when you have finished working them out on paper should you enter the answers.  Because many of these are short, there are more than usual.

Quiz this week on one dimensional kinematics.  More information later.

Homework comments:

1) Significant digits have been enabled.  Most of the homework problems ask for a specific number of significant figures.  I have found that you get the answer closest to the book's answer if you do NOT round off intermediate steps to the correct number of sig. figs.

2) You can enter numbers in scientific notation if you need to do so to get the sig. figs. in correctly. An acceptable format is #.##e# (e.g. 1.23e4)

3) Note carefully the units the book uses in stating the problems.

4)Don't forget that some questions may have negative answers!

Q28: They want the answer in terms of g, 9.80m/s^2. 
Q53: The wording of this problem is wrong.  For (b) give the max height above the ground.
Q66: Read the time scale on the graph carefully, and remember that "a" is positive even when its slope is negative.

Forces in Equilibrium lab due.  Make sure you review the guidelines for lab writeups.  In your calculations section, you need an diagram of the four force vectors, the 3 given and the measured (not calculated) equilibriant vector (use ruler and protractor!).  You also need to calculate the equilibriant two ways, by components and using the law of sines and law of cosines.  See the lab manual for details.  Turn in the white pages of your lab notebook, not the yellow pages.  Do NOT turn in the printed pages from the lab manual.

The third homework is assigned and due on this date.  The assignment is on chapter 3 and on the beginning of chapter 4.  In chapter 3, we will cover the dot product and the cross product LATER.

WebCT is now ready for use. 

Read the instructions for WebCT before logging in. 

You must NOT create an account.  It exists already. 

The instructions are here.
                WebCT is here.

So far, only the test grade is posted.  Other scores will be added over the next few days, along with a cumulative grade so far.

Quiz on circular motion

Test in lab on chapters 6, 7, and 8, as well as the use of the dot product from chapter 3.  This covers friction, circular motion, work, energy, and conservation of energy, including thermal losses.  Material on circular motion from chapter 4 is included, of course.

Ballistic Pendulum lab due.  Here is the format for the summary table, in case you lost the one from two weeks ago.  Note: this version shows a space for a calculation of the uncertainty in the projectile shot and in the ballistic pendulum, but you only have to calculate the uncertainty for the projectile.  Note: use this number when you compare your two answers and discuss whether they are in reasonable agreement!

If you give the lab to me here, I can get it back to you before the test.  There will be no point penalty if you get this lab in to me any time until the next test.  However, I will only be able guarantee to grade it before the test if you turn it in here.

9:30 to 11:00 A.M., R. Cohen
2:00 P.M., B. Carter. 

5 pts.   - Calculation of center of mass
5-pts.   - Impulse and average force
10-pts. - Conservation of momentum in two dimensions
5-pts.   - Rotational kinematics
5-pts.   - Rotation and energy conservation
10-pts. - Static Equilibrium
10-pts  - Rotation and dynamics

The 14th homework is assigned and is due here.  This is gravity homework.

I plan to also have an "extra credit" oscillations homework.

Remember, you can only have a makeup final in the event of real accident or illness.  Because of scheduling, you would have to have an incomplete and make it up later. 

The draft formula sheet is here.

Use of cross products to calculate angular momentum or torque.
Conservation of angular momentum
Gravitational potential energy and total energy in orbit
Gravitational force on point masses.
Oscillation in simple harmonic motion with determination of the various parameters from initial conditions (including phase constant and maximums of position, velocity, and acceleration).
Setting up the equation of motion and demonstrating that an object will oscillate in SHM

Sun.
6/1