University of British Columbia
Econ 101
Section 004
Tutorial 1
1) Which of the following is the best definition of economics?
A) The study of how a provincial government allocates tax dollars.
B) The study of how consumers spend their income.
C) The study
PHYS 306
Homework 3
Due Thursday March 6, 5 PM
In wall box labeled PHYS 306 outside Henn 310
Late Penalty: -30% by 5 PM Mar 7,
-60% by 5 PM Mar10
1. Consider the system above, consisting of a mass M attached to a spring (with spring constant k) which move
PHYS 306
Homework 2
Due Monday Feb 24, 5 PM
In wall box labeled PHYS 306 outside Henn 310
Late Penalty: -30% by 5 PM Feb 25, -60% by 5 PM Feb 26.
1. In tutorial you showed that in spherical polar coordinates, once one evaluated the
dependence some of the
PHYS 306
Homework 6
Due Monday April 7, 5 PM
In wall box labeled PHYS 306 outside Henn 310
Late Penalty: -40% by 5 PM Apr 8,
-75% by 5 PM Apr 9.
1. Use the Hamilton method to derive the equations of motion of the rigid-rod pendulum, but whose
motion is no
PHYS 306
Homework 5
Due Wednesday March 26, 5 PM
In wall box labeled PHYS 306 outside Henn 310
Late Penalty: -30% by 5 PM Mar 27,
-60% by 5 PM Mar 28.
1. In class we derived the equations of motion of a projectile moving above the spinning Earth, where
th
Solutions to HW2
Problem 1
Lets start with the expression for the velocity in spherical-polar coordinates:
v = r + r + r sin
r
(1)
where the r, , (unit) vectors can be put in terms of the Cartesian unit vectors, as shown
in a previous tutorial:
r = sin