Log in
HomeStudy Guides420,000US230,000

PH 105 Midterm: PH105 spring16_Exam2_A

46 views7 pages
turquoisegnu128
31 Jan 2019
School
University of Alabama
Department
PH
Course
PH 105
Professor
All

For unlimited access to Study Guides, a Grade+ subscription is required.

Document Summary

Choose the one alternative that best completes the statement or answers the question: a baseball is thrown vertically upward and feels no air resistance. After the collision, the 2. 00 -kg object has a velocity 5. 00 m/s to the west. How much kinetic energy was lost during the collision: 516 j, 175 j, 0. 000 j, 91. 7 j, 458 j, consider what happens when you jump up in the air. 3) accurate statement: since the ground is stationary, it cannot exert the upward force necessary to propel you into the air. 4) particle constrained to move along the x-axis. When the spring is most compressed, both objects are moving at the same speed. 6: momentum only, momentum and potential energy, momentum and mechanical energy, momentum and kinetic energy, kinetic energy only. 1: you slam on the brakes of your car in a panic, and skid a certain distance on a straight, level.

Get access

Grade+
$40 USD/m
Billed monthly
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
10 Verified Answers

Related Documents

PH 105
Final Exam
Study Guide
PH 105 Midterm: PH105 F15 PH105 Exam 2B
turquoisegnu128
PH 105
Final Exam
Study Guide
PH 105 Midterm: PH105 F15 PH105 Exam 1B
turquoisegnu128
PH 105
Final Exam
Study Guide
PH 105 Midterm: PH105 Exam2A-with-key
turquoisegnu128

Related Questions

A 0.005-kg bullet traveling horizontally with a speed of 1.00 x 103 m/s enters an 18.0-kg door,
embedding itself 10.0 cm from the side opposite the hinges. The 1.00-m-wide door is free to swing on its hinges.

(a) Before it hits the door, does the bullet have angular momentum relative to the door's axis of rotation? Explain.

(b) Is mechanical energy conserved in this collision?

(c) At what angular speed does the door swing open immediately after the collision? (The door has the same moment of inertia as a rod with the axis at on end.)

(d) Calculate the energy of the door-bullet system and determine whether it is less than or equal to the kinetic energy of the bullet before the collision.

uploaded image

A 3-kg object moving to the right on a frictionless, horizontal surface with a speed of 2 m/s collides head-on and sticks to a 2-kg object that is initially moving to the left with a speed of 4 m/s. After the collision, which statement is true? (a) The kinetic energy of the system is 20 J. (b) The momentum of the system is 14 kg m/s. (c) The kinetic energy of the system is greater than 5 J but less than 20 J. (d) The momentum of the system is –2 kg m/s. (e) The momentum of the system is less than the momentum of the system before the collision.

A 3-kg object moving to the right on a frictionless, horizontal surface with a speed of 2 m/s collides head-on and sticks to a 2-kg object that is initially moving to the left with a speed of 4 m/s. After the collision, which statement is true? (a) The kinetic energy of the system is 20 J. (b) The momentum of the system is 14 kg m/s. (c) The kinetic energy of the system is greater than 5 J but less than 20 J. (d) The momentum of the system is –2 kg m/s. (e) The momentum of the system is less than the momentum of the system before the collision.