Homework 1
Due Wednesday, September 21, 2016 at the beginning of class.
REMEMBER TO WRITE DOWN YOUR OWN NAME AND THE FULL NAMES OF YOUR COLLABORATORS (for example: I worked with Kilroy Jenkins on problem 3 and Chauncey Whittelsey on
problem 7.)
1. What do
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Author Manuscript
Health Phys. Author manuscript; available in PMC 2011 August 1.
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Published in final edited form as:
Health Phys. 2010 August ; 99(2): 124142. doi:10.1097/HP.0b013e3181bbbfbd.
Fallout Deposition i
HOMERIC VALUES
For it is honorable and glorious for a man to fight
for his country and children and wedded wife
against the enemy. And death will come whenever
the Fates decree. But let him march forward
holding his spear high and keeping his brae heart
b
Physics 1201
Quiz #2
Sept. 24, 2014
Name: _
A ball is launched from the ground at an angle of 600 with an initial
velocity with magnitude 20 m/s. After reaching the top of its
trajectory, it lands on the top of a 10 m high building.
a) At what time (in se
Physics 1201
Quiz #2
Sept. 25, 2013
Name: _
A ball is shot from the ground into the air. At a height of 9.1m, its velocity is
vx = 7.6 m/s and vy = 6.1 m/s.
a) What is the initial velocity of the ball in the x and y directions ( vx0 and vy0 ) in m/s?
b) T
Physics 1201
Quiz #3
October 5, 2011
Name: _
Problem: Two blocks, mA = 10 kg and mB = 20 kg are connected by a string. The blocks are pulled at
a constant velocity of 1m/s up an inclined ramp with an angle of 30 as shown in the figure. There is
friction b
Physics 1201
Quiz #1
Sept. 17, 2014
Name: _
ttop=1.6 s
A rock is shot vertically upward from the top of a tall building.
The rock reaches its maximum height above the top of the building
at time ttop = 1.6 sec after being shot. Then the rock falls down an
Physics 1201
Quiz #2
Sept. 28, 2011
Name: _
A ball is launched from the ground at an angle of 600 with an initial
velocity of 20 m/s. After reaching the top of its trajectory, it lands on
the top of a 10 m high building.
a) At what time (in sec) does the
Physics 1201
Quiz #1
Sept. 21, 2011
Name: _
Problem:
A ball is thrown vertically up from the top of a building that is 20 m above the street
level. After some time, the ball hits the street with a vertical speed of 25 m/s in the
downward direction.
a) Wha
Physics 1201
Quiz #2
Sept. 30, 2015
Name: _
A projectile is launched from the roof of a building 10m
300
above the ground and at an angle of 300 above the
horizontal. The projectile hits the ground 2.0 s after
being launched.
a) What is the initial speed
Physics 1201
Quiz #3
October 1, 2014
Name: _
Block A is connected to block B by a string over a pulley
as shown in the figure. The mass of block A is 4.5 kg and
the mass of block B is 2.2 kg.
a) If block C is placed on top of block A and the
coefficient o
Physics 1201
Quiz #1
Sept. 21, 2015
Name: _
A rock is thrown vertically upward from ground level at time t = 0. The rock goes up,
reaches a maximum height, and then falls back to the ground, hitting the ground at t =
5.0 s.
a) What is the initial upward v
Physics 1201
Quiz #1
Sept. 12, 2012
Name: _
A toy rocket is shot vertically upward from the ground. It reaches a height of 20 m above the
ground in 0.5 seconds. (For these questions, neglect air resistance.)
a) What was the initial velocity of rocket (in
Introduction to Electricity/Magnetism/Optics, C1402, Spring 2013
Final Exam.
Tuesday, May 14, 9:10 am.
You should attempt to complete all eight problems (25 points each). Some useful information
is included on the last five pages. The units that go along
Assignment 1 Solutions
Chpt 21
6. (a) With a understood to mean the magnitude of acceleration, Newtons second and
third laws lead to
(b) The magnitude of the (only) force on particle 1 is
Inserting the values for m1 and a1 (see part (a) we obtain |q| = 7.
Assignment 3 Solutions
Chpt 24
9. (a) The work done by the electric field is
(b) Since V V0 = W/q0 = z/20, with V0 set to be zero on the sheet, the electric
potential at P is
17. A charge 5q is a distance 2d from P, a charge 5q is a distance d from P, and
Assignment 2 Solutions
Chpt 23
2. We use
and note that the side length of the cube is (3.0 m1.0 m) = 2.0 m.
(a) On the top face of the cube y = 2.0 m and
. Therefore, we have
. Thus the flux is
(b) On the bottom face of the cube y = 0 and
. Therefore, we
Assignment 9 Solutions
Chpt 31
31. (a) The inductive reactance for angular frequency d is given by
, and the
capacitive reactance is given by XC = 1/dC. The two reactances are equal if dL = 1/dC,
or
. The frequency is
(b) The inductive reactance is
XL = d
Assignment 7 Solutions
U
Chpt 29
43. We use Eq. 29-20
for the B-field inside the wire (
17
for that outside the wire (r > a).
(a) At
(b) At
.
,
(c) At
(d) At
) and Eq. 29-
,
,
45. (a) Two of the currents are out of the page and one is into the page, so th
Assignment 8 Solutions
U
Chpt 30
40. Since NB = Li, we obtain
45. (a) Speaking anthropomorphically, the coil wants to fight the changesso if it wants
to push current rightward (when the current is already going rightward) then i must be in
the process of
Assignment 6 Solutions
Chpt 28
38. (a) Using Eq. 28-23 and Eq. 28-18, we find
(b) From
we have
41. (a) The magnetic force on the wire must be upward and have a magnitude equal to the
gravitational force mg on the wire. Since the field and the current are
Assignment 10 Solutions
Chpt 33
36. (a) The fraction of light which is transmitted by the glasses is
(b) Since now the horizontal component of
will pass through the glasses,
49. The angle of incidence for the light ray on mirror B is 90 . So the outgoing
Assignment 11 Solutions
Chpt 37
2. (a) We find from
(b) Similarly,
(c) In this case,
(d) The result is
4. Due to the time-dilation effect, the time between initial and final ages for the daughter
is longer than the four years experienced by her father:
tf
Assignment 4 Solutions
Chpt 26
1. (a) The charge that passes through any cross section is the product of the current and
time. Since t = 4.0 min = (4.0 min)(60 s/min) = 240 s,
q = it = (5.0 A)(240 s) = 1.2 103 C.
(b) The number of electrons N is given by
N14/4/PHYSI/SP2/ENG/TZ0/XX/M
MARKSCHEME
November 2014
PHYSICS
Standard Level
Paper 2
12 pages
2
N14/4/PHYSI/SP2/ENG/TZ0/XX/M
This markscheme is the property of the International
Baccalaureate and must not be reproduced or distributed to any
other person w
N14/4/PHYSI/SP3/ENG/TZ0/XX/M
MARKSCHEME
November 2014
PHYSICS
Standard Level
Paper 3
16 pages
2
N14/4/PHYSI/SP3/ENG/TZ0/XX/M
This markscheme is the property of the International
Baccalaureate and must not be reproduced or distributed to any
other person w