Docsity
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Docsity AI
Docsity AI
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search for your university

Find the specific documents for your university's exams

Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

Final Exam - General Physics - Fall 2008 | PHYS 2014, Exams of Physics

Oklahoma State University (OSU) - StillwaterPhysics
Prof. Aihua Xie

Material Type: Exam; Professor: Xie; Class: GENERAL PHYSICS; Subject: Physics ; University: Oklahoma State University - Stillwater; Term: Spring 2008;

Typology: Exams

2010/2011

Uploaded on 07/17/2011

koofers-user-9y6
koofers-user-9y6 🇺🇸

10 documents

1 / 5

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
PHYS2014 May 1, 2008
Page 1
Instructors: Drs. S. Nandi, A. Xie
TAs: Zeke, Hatim, Abdelhamid
FINAL EXAM
Thursday May 1, 2008, 12:00-1:50pm
NAME: TOTAL POINTS: 200
DISCUSSION SECTION: SCORE:
SECTION TA:
NOTES: You may use an electronic calculator. Math tables, dictionaries, textbook, other written
materials and scratch papers are not permitted. All problems, except multiple choices, must clearly
show the physical principles and the equations being used, the substitution of any number into the
calculations and the answers. All work must be done directly onto the exam paper provided. Be sure to
give the correct units. Obtaining programmed information from a programmable calculator is strictly
prohibited.
Suggestions: (1) Read each problem carefully; (2) Do easy problems first; (3) Check your
solutions.
Problem #1 (50 points) There are 10 multiple-choice questions (5 points each). Circle the
correct answer.
(1) The velocity of a car in m/s moving along east is given by
V = 5 – 2 t
Its acceleration (in m/s2) is given by
A. 5 B. 2 along east C. 2 along west D. 0 E. none of the above
(2) The value of i . (j x k ) is
A. 1 B. zero C. -1 D. 3 E. none of the above
(3) A turntable makes 90 revolutions per minute. Its angular speed in radian/second is
A. 2 π B. 1.5 π C. 3 π D. 3 E. none of the above
(4) The physical quantity “impulse” has the same unit as
A. force B. power C. work D. momentum E. none of the above
pf3
pf4
pf5

Partial preview of the text

Download Final Exam - General Physics - Fall 2008 | PHYS 2014 and more Exams Physics in PDF only on Docsity!

Instructors: Drs. S. Nandi, A. Xie

TAs: Zeke, Hatim, Abdelhamid

FINAL EXAM

Thursday May 1, 2008, 12:00-1:50pm

NAME: TOTAL POINTS: 200

DISCUSSION SECTION: SCORE:

SECTION TA:

NOTES: You may use an electronic calculator. Math tables, dictionaries, textbook, other written materials and scratch papers are not permitted. All problems, except multiple choices, must clearly show the physical principles and the equations being used, the substitution of any number into the calculations and the answers. All work must be done directly onto the exam paper provided. Be sure to give the correct units. Obtaining programmed information from a programmable calculator is strictly prohibited.

Suggestions: (1) Read each problem carefully; (2) Do easy problems first; (3) Check your solutions.

Problem #1 (50 points) There are 10 multiple-choice questions (5 points each). Circle the correct answer.

(1) The velocity of a car in m/s moving along east is given by

V = 5 – 2 t

Its acceleration (in m/s^2 ) is given by

A. 5 B. 2 along east C. 2 along west D. 0 E. none of the above

(2) The value of i. (j x k ) is

A. 1 B. zero C. -1 D. 3 E. none of the above

(3) A turntable makes 90 revolutions per minute. Its angular speed in radian/second is

A. 2 π B. 1.5 π C. 3 π D. 3 E. none of the above

(4) The physical quantity “impulse” has the same unit as

A. force B. power C. work D. momentum E. none of the above

(5) An unstable nucleus has a mass M and is initially at rest. It ejects a particle of

mass m with speed v. The recoil speed of the remaining nucleus is

A. mv / M B. mv / (m + M) C. (m + M ) v / m D. mv/ (M-m) E. none of the above

(6) A thin circular hoop of mass 1.0 kg and radius 2.0 m is rotating about an axis through the center and perpendicular to its plane. It is slowing down at the rate of 7.0 rad/s^2. The net torque acting on it is: A. 7.0 N⋅m B. 14.0 N⋅m C. 28.0 N⋅m D. 44.0 N⋅m E. none of these

during the falling of a ball is:

B. Negative C. Zero D. Sign depends on the direction of y axis E. None of above

(8) A simple harmonic oscillator consists of a mass and spring (as shown). It oscillates with period T. If the spring is cut in half and used the same mass, the period will be:

A. 2Τ

B.

(7) The work done by gravity A. Positive

C. Τ/ 2

D. Τ

E. Τ /

(9) An exercise weight at the surface of Earth weighs 400 N (40 lb). Its weight at a distance 2R from the center of Earth is: A. 20N B. 40N C. 60N D. 100N E. 200N

(10) A basketball floats in fluids of density:

Rank these fluids according to the magnitude (small, medium, large) of the buoyant force they exert on the basketball: A. 1,2, B. 3,2, C. 2,3, D. 3,1, E. All are the same

  1. 0.^9 ρ^0 ; 2. ρ^0 ; 3. 1.^1 ρ 0.

Problem #5 (30 points)

A 2.0-kg, 20-cm-diameter turntable rotates on frictionless bearings at 100 rpm. Two 500 g blocks fall from the above, hit the turntable simultaneously at opposite ends of a diagonal, and stick.

(A) What is the turntable’s angular velocity, in rpm, after this event? (B) What is the final kinetic energy of the system?

Problem #6 (30 points)

As shown in the figure below, 1.0-kg mass riding on top of a 5.0-kg mass as it oscillates on a frictionless surface. The spring constant is 50 N/m and the coefficient of static friction between the two blocks is 0.50.

(A) What is the oscillating angular frequency of the masses when there is no slip between the two blocks? (B) What is the maximum oscillation amplitude for which the upper block does not slip?