Written By:
Adam Berent
AES (Advanced Encryption Standard) Simplified
V.1.1
1.0 Preface
The following document provides a detailed and easy to understand explanation of the implementation of the AES
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Lesson 7 Problems Involving Momentum and
Energy
Monday, December 09, 2013
1:59 PM
Unit 4 Momentum Page 1
Unit 4 Momentum Page 2
Unit 4 Momentum Page 3
Unit 4 Momentum Page 4
Unit 4 Momentum Page 5
Uni
Physics 12
Name:_
Score: _/12
Momentum Quiz #2
Version 1
Show work clearly, including all substitutions, etc. Make clear diagrams where necessary. Check
your sig figs!
1.
A 1200 kg car is moving East
Lesson 5 1-Dimensional Momentum
Monday, December 09, 2013
1:59 PM
Unit 4 Momentum Page 1
Unit 4 Momentum Page 2
Unit 4 Momentum Page 3
Unit 4 Momentum Page 4
Throw the camera directly opposite to the
Lesson 6 2-Dimensional Momentum
Monday, December 09, 2013
1:59 PM
Unit 4 Momentum Page 1
The lighter can moves off twice as fast in the opposite
direction.
Unit 4 Momentum Page 2
Unit 4 Momentum Page
Physics 12
Name:
Ultimate Electrostatics Assignment
Key Formulae:
F=k
Q1Q2
r2
E=
F
Q
V =
EP
Q
E=
V
d
V=
kQ
r
Ep = k
0108
1.
Q1Q2
r
E=
kQ
r2
2.
3.
4.
0106
5.
6.
7.
8.
0101
9.
10.
11.
12.
0008
13.
14.
1
Forces Tutorial 2013
Tuesday, November 19, 2013
2:56 PM
Written Section:
Suppose this doesn't move. What is the coefficient of
friction?
Physics 12 Page 1
Physics 12 Page 2
Physics 12 Page 3
Physics 1
Lesson 8 Explosions and Other Problems
Monday, December 09, 2013
2:00 PM
Unit 4 Momentum Page 1
b) Find the change in KE.
Unit 4 Momentum Page 2
Unit 4 Momentum Page 3
Unit 4 Momentum Page 4
Unit 4 Mo
Physics 12
Name:
The Ultimate Vector Momentum Assignment
Key Formulae:
p = mv
and
p = F t
REMEMBER, MOMENTUM IS A VECTOR! YOU WILL BE DRAWING TIP-TOTAIL VECTOR DIAGRAMS FOR MOST QUESTIONS, UNLESS NO A
Lesson 4 Friction
Friday, November 22, 2013
6:03 PM
Unit 4 Forces Page 1
Unit 4 Forces Page 2
Unit 4 Forces Page 3
Unit 4 Forces Page 4
a=0, so net force must be zero.
(Newton's First and Third laws)
Lesson 3 Types of Forces
Friday, November 22, 2013
6:03 PM
Unit 4 Forces Page 1
Towards the center of the gravitational body
The Forces
On You (I.
A scale measures the normal force!
Unit 4 Forces Page
Lesson 1 Introduction to Forces
Friday, November 22, 2013
11:55 AM
Unit 4 Forces Page 1
Unit 4 Forces Page 2
Unit 4 Forces Page 3
Applies a force in the opposite direction of motion
Newtons1st
ice car
Lesson 5 Many Body Problems
Friday, November 22, 2013
6:11 PM
Unit 4 Forces Page 1
Three
Incorrect .
Unit 4 Forces Page 2
Unit 4 Forces Page 3
Unit 4 Forces Page 4
Unit 4 Forces Page 5
d) Find tension
Lesson 2 Free Body Diagrams
Friday, November 22, 2013
6:02 PM
Space
Station Re.
Unit 4 Forces Page 1
Unit 4 Forces Page 2
Unit 4 Forces Page 3
Unit 4 Forces Page 4
SemiTruckSt
oppedbyS.
Unit 4 Forces
Another radioactive isotope found in the earth is 92U238 . Since it is well
above the 209 mass limit, it gives rise to a whole series of radioactive
isotopes with mass numbers 238, 234, 230, 226, 222,
To give some scale to the radiation levels in relation to their health effects,
lets consider the background radiation.
Plants take up carbon, including radioactive carbon-14, from the air.
Therefore,
In some cases, a very heavy nucleus, instead of undergoing alpha decay,
will spontaneously split in two. Example:
U238
92
Sn129 + 42Mo106 + 30n1 + energy
50
This fissioning of uranium does not always
Since nuclear forces do not have the long range of gravity and
electromagnetism, we can treat the forces as simply do they act or dont
they. This is like a target: we either hit the target or we dont.
Example of carbon dating:
The present day ratio of C-14 to C-12 in the atmosphere is 1.3x10-12 . The
half-life of C-14 is 5,730 years. What is the activity of a 1 gm sample of
carbon from a living pla
Review:
N(t) = No e-lt
A = lN = Aoe-lt
T(half life) = ln(2) / l .
If the half life is large, l is small. This means that if the radioactive
isotope will last a long time, its activity will be small; i
The longest lived isotope in the fourth series is 93-Np-237 with a half life
of 2.2 million years. Note: million NOT billion. We do not find any of this
atom or this series on the earth (unless we our
Can we devise a way to measure the health effects of radiation?
In addition to measuring ionization ability in air, we can also measure the
energy that is absorbed by a biological material:
Rad = .01
Note: the gamma rays emitted in nuclear processes are NOT related to the
electron orbits - they are energy emitted by the nucleus and not the atom.
High energy photons interact with material in three