Quantum Mechanics
Multiple Choice
1.
A 15-kg mass, attached to a massless spring whose force constant is 2500 N/m,
has an amplitude of 4 cm. Assuming the energy is quantized, find the quantum
number of the system, n, if En = nhf.
a.
b.
c.
d.
e.
2.
Find th

ISAT 142
Homework #6
Section 7: Spring 2001
1. A = 5i + 3 j and
What is A + B?
B = 2i 4 j
What is A B?
A + B = (5 + 3)i + (2 4) j = 7i j
A B = (5 2)i + (3 + 4) j = 3i + 7 j
2. Find the lengths of each of the following vectors and the angle that each
makes

Ronnel Fernandez
4th period
12-1-08
Experiment 1: Color Addition
Part 1
Procedure
Colors Added
Red + blue + green
Red + blue
Resulting Color
white
Pinkish purple
Red + green
Green + blue
orange
cyan
Questions
1. Is mixing colored light the same as mixing

Physics 211 Experiment #13 Standing Waves on a String
Objective: The objective of this experiment is to gain knowledge and
understanding of standing waves driven by an external force. Resonant conditions
for standing waves on a string will be investigated

Physics 208, Spring 08, Quiz Week 13
Apr. 14, 2008
1. Short problem: A red and blue beam of light have a power of 3 mW and
wavelengths respectively of 750 nm and 430 nm. How many photons/second do
they produce? [Hint: hc = 1240 eV x nm and 1 eV = 1.6 x 10

I. CONCEPTUAL QUESTIONS (5 points ea): Answer these in a few complete and grammatically
correct English sentences. Note that a correct explanation will be worth 4 points and merely
choosing the correct answer will be worth 1 point.
1. An object of mass m

Chapter 19: Electric Forces and Electric Fields
1. Three objects are brought close to one another, two at a time. When objects A and B
are brought together, they repel. When objects B and C are brought together, they also
repel. Which of the following sta