Shawn Zhong

Shawn Zhong

 钟万祥
  • Tutorials
  • Mathematics
    • Math 240
    • Math 375
    • Math 431
    • Math 514
    • Math 521
    • Math 541
    • Math 632
    • Abstract Algebra
    • Linear Algebra
    • Category Theory
  • Computer Sciences
    • CS/ECE 252
    • CS/ECE 352
    • Learn Haskell
  • AP Notes
    • AP Microecon
    • AP Macroecon
    • AP Statistics
    • AP Chemistry
    • AP Physics E&M
    • AP Physics Mech
    • CLEP Psycho

Shawn Zhong

 钟万祥
  • Tutorials
  • Mathematics
    • Math 240
    • Math 375
    • Math 431
    • Math 514
    • Math 521
    • Math 541
    • Math 632
    • Abstract Algebra
    • Linear Algebra
    • Category Theory
  • Computer Sciences
    • CS/ECE 252
    • CS/ECE 352
    • Learn Haskell
  • AP Notes
    • AP Microecon
    • AP Macroecon
    • AP Statistics
    • AP Chemistry
    • AP Physics E&M
    • AP Physics Mech
    • CLEP Psycho

Onetone Blog

Home / Onetone Blog / Page 48

3.3 – Friction

  • Dec 08, 2017
  • Shawn
  • AP Physics C Mechanics
  • No comments yet
Coefficient of Friction • Ratio of the frictional force and the normal force provides the coefficient of friction • μ=F_f/F_N Kinetic or Static Calculating the Force of Friction • The force of friction depends only upon the nature of the surface in contact (μ) and magnitude of the normal force FN • Combine with Newtons Second Las and FBDs to solve more involved problems 2007 Free Response Question 1
Read More >>

3.4 – Retarding & Drag Forces

  • Dec 08, 2017
  • Shawn
  • AP Physics C Mechanics
  • No comments yet
Retarding Forces • Sometimes the frictional force is a function of an objects velocity (such as air resistance) • These forces are called drag, or retarding, forces. The Skydiver • Assume we drop Alex from an airplane • Typically the drag forces on a free-falling object take the form F_drag=bv or F_drag=cv^2, where b and c are constants • For this problem, lets assume F_drag=bv Velocity as a Function of Time Acceleration as a Function of Time Graph of Acceleration, Velocity, and Displacement 2005 Free Response Question 1 2013 Free Response Question 2
Read More >>

3.5 – Ramps & Inclines

  • Dec 08, 2017
  • Shawn
  • AP Physics C Mechanics
  • No comments yet
Drawing FBDs for Ramps • Choose the object of interest and draw it as a dot or box • Draw and label all the external forces acting on the object • Sketch a coordinate system, choosing the direction of the object's motion as one of the positive axes Pseudo-FBDs • When forces don't line up with axes, you can draw a pseudo-FBD • Break forces that don't line up with axes into components that do • Redraw your diagram with all forces parallel to axes
Read More >>

3.6 – Atwood Machines

  • Dec 08, 2017
  • Shawn
  • AP Physics C Mechanics
  • No comments yet
Atwood Machine • Atwood Machine - two objects are connected by a light string over a massless pulley • Ideal pulleys are frictionless and massless (they add no inertia to the system) • Tension is constant in a light string passing over an ideal pulley Solving Atwood Machine Problems 1. Adopt a sign convention for positive and negative motion 2. Draw a free body diagram for each mass 3. Write Newton's Second Law equations for each mass 4. Solve for unknowns Alternate Solution • Analyze the system as a whole Mass and Pulley on a Ramp
Read More >>

4.1 – Work

  • Dec 08, 2017
  • Shawn
  • AP Physics C Mechanics
  • No comments yet
What is Work? • Work is the process of moving an object by applying a force • The object must move for work to be done • The force must cause the movement • Work is a scalar quantity • Units are Joules Work in One Dimension • Only the force in the direction of the displacement contributes to the work done Non-Constant Forces • Work done is the area under the force vs. displacement graph Hooke's Law • The more you stretch or compress a string, the greater the force of the spring • The spring's force is opposite the direction of its displacement from equilibrium • Model this as a linear relationship, where the force applied by the spring is equal to a constant (the spring constant) multiplied by the spring's displacement from its equilibrium (rest) position • F_s=−kx • Slope of the graph gives you the spring constant, k (in N/m) Work Done in Compressing a Spring • A spring obeys Hooke's Law. How much work is done in compressing the spring from equilibrium to some point x? Work Done in Compressing a Non-Linear Spring Work in Multiple Dimensions Work-Energy Theorem Example: Velocity from an F-d Graph • Determine the object's final speed.
Read More >>
  • 1
  • …
  • 46
  • 47
  • 48
  • 49
  • 50
  • …
  • 87

Search

  • Home Page
  • Tutorials
  • Mathematics
    • Math 240 – Discrete Math
    • Math 375 – Linear Algebra
    • Math 431 – Intro to Probability
    • Math 514 – Numerical Analysis
    • Math 521 – Analysis I
    • Math 541 – Abstract Algebra
    • Math 632 – Stochastic Processes
    • Abstract Algebra @ 万门大学
    • Linear Algebra @ 万门大学
    • Category Theory
  • Computer Sciences
    • CS/ECE 252 – Intro to Computer Engr.
    • CS/ECE 352 – Digital System Fund.
    • Learn Haskell
  • Course Notes
    • AP Macroeconomics
    • AP Microeconomics
    • AP Chemistry
    • AP Statistics
    • AP Physics C: E＆M
    • AP Physics C: Mechanics
    • CLEP Psychology
  • 2048 Game
  • HiMCM 2016
  • 登峰杯 MCM

WeChat Account

Categories

  • Notes (418)
    • AP (115)
      • AP Macroeconomics (20)
      • AP Microeconomics (23)
      • AP Physics C E＆M (25)
      • AP Physics C Mechanics (28)
      • AP Statistics (19)
    • Computer Sciences (2)
    • Mathematics (300)
      • Abstract Algebra (29)
      • Category Theory (7)
      • Linear Algebra (29)
      • Math 240 (42)
      • Math 375 (71)
      • Math 514 (18)
      • Math 521 (39)
      • Math 541 (39)
      • Math 632 (26)
  • Projects (2)
  • Tutorials (11)

Archives

  • October 2019
  • May 2019
  • April 2019
  • March 2019
  • February 2019
  • December 2018
  • November 2018
  • October 2018
  • September 2018
  • July 2018
  • May 2018
  • April 2018
  • March 2018
  • February 2018
  • January 2018
  • December 2017
  • November 2017
  • October 2017
  • September 2017
  • August 2017
  • July 2017
  • June 2017

WeChat Account

Links

RobeZH's thoughts on Algorithms - Ziyi Zhang
Copyright © 2018.      
TOP