Lecture HomeWork 7

Physics 121, Fall 2010

Prof. E. F. Redish

Lecture homework consists of 2 parts. Since a lot of the problems this week require diagrams and tools that are not available in MP, most of the problems will have to be done on paper.

One part is to be done online in the MasteringPhysics (MP) environment. This includes a few MP problems plus a few problems from my collection. The MP problems will be exercises, worth 1 point each. You may use any hints that are available and you can do them as many times as you want. The problems from my collection are worth 2-3 points each
The second part are problems from my collection. It should be prepared carefully and neatly on paper (preferably on a computer and printed out).
- Please be certain to put your name and section number on every page
  and to NOT CONNECT THE PAGES with staples, clips, tape, or dogears.
  Connecting them may result in you homework being damaged or destroyed.

Both parts will be due at the beginning of lecture on Fridays.

No homework will be accepted after the solutions are released on BlackBoard
(at about 2:00 PM on the Friday when it is due).

Homework Assignment 7L
(Due Friday, 10/22/10)

To be done on paper and handed in at the beginning of lecture on Friday (the 5 pts problem should be typed and printed).

1. Propelling a paramecium (5 pts)

2. The ice-skating professor (2 pts)

To be done in the MP environment. 4 MP problems (1 pt each) plus the following:

1. Drifting continents (2 pts)

2. Riding an elevator (2 pts)

3. Taking Cyrano to the moon (2 pts)

4. Closing the door (parts a-c) (3 pts)

RETURNS

University of Maryland	Physics Department	Physics 121 Home

This page prepared by

Edward F. Redish
Department of Physics
University of Maryland
College Park, MD 20742
Phone: (301) 405-6120
Email: redish@physics.umd.edu

Last revision 15. October, 2010.