College Physics I

Ephrim Menzolin

11.6.12
I have found a site that explains Pressure pretty well, especially as it relates to gauge pressure as well as another site that lists various densities. These will help with the homework significantly for Chapter 10.
National Instrument Developer Zone | Pressure Principles
The Engineering Toolbox | Liquids and Density each value given for density is actually given in grams per  meter cubed thus you must divide by 1000 to get the standard measure of kilograms per meter cubed.

Thus where it says the density for water = 1000, 1000/1000 = 1;
olive oil = 800 - 920, 800/1000 = .8            920/1000 = .92
.8 is less than 1; .92 is less than 1
Thus olive oil floats in water.

The density of vinegar is between 1.010 and 1.080
1.010 is greater than 1; 1.080 is greater than 1
Thus vinegar sinks in water

Olive oil floats when mixed with vinegar

Wolfram Alpha is also a good site if you are having trouble knowing what the definition of terms are for physics words and keywords as well as anything you can possibly think of.

Upcoming Events

November | 

11.9.12
The Chapter 10 homework has been moved to Tuesday.
Scans of last years test should be here soon. Pages 4 and 5 will ge given in class on Wednesday since Monday is a holiday.

11.7.12
The test will only cover Chapters 9-11 and we will continue chapter 11 Friday.

11.5.12
Chapter 9 homework is due Tuesday. If you would like 10 points of extra credit for the next text you must derive Bernollini's equation and turn it in Wednesday for credit.

11.2.12
The next test is the 19th Covering Chapters 9-12

Chapter 10's homework has been posted and is due this coming Friday, not today. Chapter 9 is due Tuesday

October |

10.30.12
We will continue Chapter 10 on Friday. The homework for Chapter 9 has already been posted and is due Tuesday.


10.29.12
The next test is scheduled for the Monday before Thanksgiving. It will cover Chapters 9-12

We will finish Chapter 9 on Wednesday and move into Chapter 10.




10.28.12
The tests weren't the best. Remember, the best two grades of the test becomes your final grade and homework is extra credit.

Chapter 9 goes over structural applications of physics in fields such as architecture and engineering.
Start reading it. The homework for Chapter 9 has not been posted yet.


10.24.12
The midterm will be on the 24th, chapters 5-8.

Study your Practice Tests he gave us. The test will be on the homework, practice test, lecture and the book.

You just need to know concepts and it is not required that you plug in and solve for your numbers. You MUST put units or he will mark you off for it.

Notes

Chapter 9 | Structural Applications

10.29.12
The chapter is based on two conditions of equilibrium
       That the Sum of all the Forces (Sigma F) is equal to 0
       That the Sum of the Torque (Tau) is equal to 0
These two conditions are based around the fact that you don't want the structural members to move, hence you are measuring the conditions of everything at equilibrium where the net force and net torque are both 0.

Previous Tests | This Year's

Test 1        Actual test         Test worked out
Test 2        Actual test         Test worked out
Test 3        Actual test         Test worked out

Previous Tests | Last Year's

Test 2
Test 3