This preview shows pages 1–3. Sign up to view the full content.
Physics 125 Test IV
December 8, 1998
This is a closed book exam. You have 70 minutes to do the exam.
You may use a calculator.
Where appropriate, draw neat diagrams, labeling your axes and clearly
indicating what variables you are using. Use Cartesian coordinates.
Give solutions to 2 or 3 significant figures.
Grading is based on what appears on your paper. In general, the
answer to a problem by itself is not sufficient to obtain credit. The
grader should be able to determine, without guessing, the steps you
took to arrive at a solution.
REGRADES can go either way. That is, errors made in grading do
not always reduce your grade; they might have incorrectly increased
your grade. (Most requests for regrades yield no change. Usually the
student just did not understand how the grade was arrived at.)
If more than one answer is given only one can be graded. Please
indicate clearly which one you want to be graded.
Please remember to put your name on the test booklet and SIGN THE
PLEDGE.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document 1. (25 points) Simple Harmonic Motion
An oscillator consists of a block of mass M = 0.80 kg connected to a
spring. At some time t, the position (measured from the unstretched
length of the spring) is x = 20.0 cm, the velocity is –15.0 m/s and the
force exerted on the mass by the spring is F =  50.0 N. Find
a). (5 points) The spring constant k.
This is the end of the preview. Sign up
to
access the rest of the document.
This note was uploaded on 05/02/2008 for the course PHYS 125 taught by Professor Mutchler during the Fall '08 term at Rice.
 Fall '08
 MUTCHLER
 Physics

Click to edit the document details