Homework Submission

            The homework problems for this course are on Homework problems and answer range sheet.  Problems 1-1 through 1-4 belong to assignment 1, problems 2-1 through 2-4 belong to assignment 2, etc.  Each of you will do the problems using different data, resulting in answers that are different from those of other students.  Blanks are left in the problems where you can write your data.  Your data for the entire semester is available over the internet and can be printed out.  Go to Print your homework data sheet .  If you do not have a course identification number yet, you must obtain one before your homework data sheet will be available.  Go to Obtain Class Identification Number (CID).

At the end of the homework problems there is information about the answers.  You are given a range of possible values for each answer, along with the units, if any.  For example; 40, 800 J means that your answer will lie between 40 and 800 J.  These numbers also indicate the accuracy to which you must calculate the answer.  For example, “40, 800 J” means that the answer must be given to the nearest 1 J.  As another example, “15.0, 60.0 N” means that the answer must be given to the nearest 0.1 N.  In some cases, the accuracy is indicated explicitly.  For example, “32000, 39000 ± 100 km” means the answer must be given to the nearest 100 km.

After working the problems, submit your answers over the internet.  Go to our course home page and click on submit homework and then the assignment number.  Fill in the answers as indicated.  Do not put units on your answer, and write your numbers appropriate for the units indicated.  If a very large or very small value needs to be written in scientific notation, indicate the exponent of 10 with an “e”.  For example, an answer of 3.00 x 10⁸ would be written 3.00e8, and 1.6 x 10^-19 would be written 1.6e-19.  Do not put any spaces in the number nor any comas, for example you may have to submit an answer like 120000, but don’t use commas.  Be very careful in submitting your answers.  Also, don’t submit the answers until you are absolutely sure you have exactly what you want to submit.

Your homework assignment will be due at 8:00 a.m. on the due date.  If you change your mind on an answer for this first try, you can resubmit any answer to problem.  Shortly after 8:00 a.m. the homework will be graded and you may then see your score over the internet by going to the course home page and clicking on “check homework”.  You will see your score and also the correct answers for any problems you missed.  You will also see new data in case you want to resubmit an answer on a missed problem.

 You will have 5 tries for each problem.  All retries are due at 8:00 a.m. on the next day class meets.  After each retry, a new set of data will appear almost immediately at the bottom of the homework status page.  Use this new data for the next try.  You only need to resubmit answers for the problems you missed in the previous try.  But you must submit answers for the entire problem and for every problem that you missed.   The computer will interpret any blank spaces (for the missed problems) as your submitted answer for that retry and count it wrong.  Retries will be graded immediately when submitted.   You can continue the process to the next retry and submit any problems you missed on the previous retry.

You will receive 5 points for each problem done correctly the first try, 4 points the second try, 3 points the third try, 2 points the fourth try, and 1 point the fifth try.  You will receive no points for a problem until it is done correctly.

You can change any answer you submitted for the first try by resubmitting that answer before it is due.  You only need to resubmit the answer you want to change.  Leave the other answers blank, and the computer will automatically use previously submitted answers.

If the first try is late, but before the retries due date (next class period), each completed problem on any of the subsequent tries will be deducted one point.  These deducted points become ``late points.''  Any points generated by tries submitted after the retries due date will also become late points.  You will receive full credit for late points on the three assignments with the most late points (everyone gets three free late assignments).  You will receive half credit for all other late points. You will always receive at least partial credit for all late work (until the end of the semester).