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Exam 1 in PHYS 3101 - Spring 2008 - Prof. Yildirim Aktas, Exams of Physics

University of North Carolina (UNC) - CharlottePhysics
Prof. Yildirim Aktas

The spring 2008 exam 1 for the phys 3101 course at unc charlotte. The exam covers topics such as simple harmonic motion, standing waves, and waves on strings. Students are required to solve problems related to these topics using given equations and data.

Typology: Exams

Pre 2010

Uploaded on 07/29/2009

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PHYS 3101
Exam 1
Spring 2008
Dr. Aktas
Name :________________________
Student # : _________________________
You have four questions, 25 points each.
This is a closed book exam. I understand I am not to use any notes or
information other than on this exam sheet. I may use a pocket calculator but
only for the purpose of numerical calculation. I accept the
responsibility to know and observe the requirements of the UNC-
Charlotte Code of Student Academic Integrity.
_________________
_
Signature
Good luck
Show all of your work. Do not skip steps. First write down the relevant
equations then substitute the numbers if necessary.
pf3
pf4
pf5

Partial preview of the text

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PHYS 3101

Exam 1

Spring 2008

Dr. Aktas

Name :________________________

Student # : _________________________

You have four questions, 25 points each.

This is a closed book exam. I understand I am not to use any notes or

information other than on this exam sheet. I may use a pocket calculator but

only for the purpose of numerical calculation. I accept the

responsibility to know and observe the requirements of the UNC-

Charlotte Code of Student Academic Integrity.

_________________

_

Signature

Good luck

Show all of your work. Do not skip steps. First write down the relevant

equations then substitute the numbers if necessary.

  1. In figure below two blocks ( m = 1.0 kg and M = 10 kg) and a spring (k = 200 N/m) are arranged on horizontal, frictionless surface. The coefficient friction between the two blocks is 0.40. What amplitude of simple harmonic motion of the spring-blocks system puts the smaller block on the verge of slipping over the larger block?
  1. A wave on a string is described by € y ( x , t ) = ( 2.0 cm )sin[ ( 12.57 rad / m ) x − ( 638 rad / s ) t ] Where x is in m t is in s. The linear density of the string is 5.0 g/m. (a) What is the string tension? (b) What is the maximum displacement of a point on the string? (c) What is the maximum speed of a point on the string? (d) What is the wave speed? (e) What is the frequency, period, and wavelength of the wave?
  1. A sinusoidal wave travels along a stretched string. A particle on the string has a maximum velocity of 2.0 m/s and a maximum acceleration of 200 m/s^2. What are the frequency, period and amplitude of the wave?