Tuesday, September 27, 2011

Blog Post 3: Waves

Questions:
1. Fast up and down
2. High energy
3. 0.98 Hz
4. 3.7 Hz
5. 0.98 Hz
6. 58 cm
7. 16 cm
8. Energy is proportional to frequency because the higher the frequency the more energy is needed to make it.  If there is high energy then there is a lower wavelength but if there is low energy there is a higher wavelength.

Blog Post 2: Unit Cell of NaCl

Unit Cell
Height, width, length : 1.104 nm or 11.04 angstroms or 1.104 * 10^-9 m

Mass
Number of molecules in one cube of salt : 5.9454 * 10^18
Mass of grain of salt : 5.77 * 10^-4

Dimension
 A grain of salt is 1.25 * 10^17 cubic nm

Tuesday, September 20, 2011

Blog Post 1: Describe 10 nm and mole of atoms

How can one really describe something so small?  It would take 1 billion of them just to make a meter, something one could walk in a second.   Since Menomonie to Des Moines is about 1000 km and that is also 1 billion millimeters then walking 10 mm of that trip would be the same as 10 nm.

On the other spectrum we have a mole which can be a huge number.  A mole come from the number of particles in 12 grams of carbon-12.  This number is about 6.02 * 10^(23).  So if you were to have a mole of people that would be 6.02 * 10^(23).  This number is so big its hard to truly comprehend its size.  If 1 mole of pennies was given out to all the people in the world then each person would have enough money to spend 1 million dollars an hour for the rest of their life.  The US dept right now is almost 15 * 10^(12) this number is not even close to a mole.